MCP4331-104E/ML

Manufacturer Part NumberMCP4331-104E/ML
DescriptionIC DGTL POT QUAD 100K 20QFN
ManufacturerMicrochip Technology
MCP4331-104E/ML datasheet
 


Specifications of MCP4331-104E/ML

Taps129Resistance (ohms)100K
Number Of Circuits4Temperature Coefficient150 ppm/°C Typical
Memory TypeVolatileInterfaceSPI Serial
Voltage - Supply1.8 V ~ 5.5 VOperating Temperature-40°C ~ 125°C
Mounting TypeSurface MountPackage / Case20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
Resistance In Ohms100KLead Free Status / RoHS StatusLead free / RoHS Compliant
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7/8-Bit Quad SPI Digital POT with Volatile Memory
Features
• Quad Resistor Network
• Potentiometer or Rheostat Configuration Options
• Resistor Network Resolution:
- 7-bit: 128 Resistors (129 Taps)
- 8-bit: 256 Resistors (257 Taps)
• R
Resistances Options of:
AB
- 5 k
- 10 k
- 50 k
- 100 k
• Zero Scale to Full Scale Wiper Operation
• Low Wiper Resistance: 75  (typical)
• Low Tempco:
- Absolute (Rheostat): 50 ppm typical
(0°C to 70°C)
- Ratiometric (Potentiometer): 15 ppm typical
• SPI Serial Interface (10 MHz, Modes 0,0 and 1,1):
- High-Speed Read/Writes to wiper registers
• Resistor Network Terminal Disconnect Feature
via Terminal Control (TCON) Register
• Reset Input Pin
• Brown-out Reset Protection (1.5V typical)
• Serial Interface Inactive Current (2.5 µA typical)
• High-Voltage Tolerant Digital Inputs: Up to 12.5V
• Supports Split Rail Applications
• Internal Weak Pull-up on all Digital Inputs
• Wide Operating Voltage:
- 2.7V to 5.5V – Device Characteristics
Specified
- 1.8V to 5.5V – Device Operation
• Wide Bandwidth (-3 dB) Operation:
- 2 MHz (typical) for 5.0 k device
• Extended Temperature Range (-40°C to +125°C)
 2010 Microchip Technology Inc.
MCP433X/435X
Package Types (Top View)
MCP43X1 Quad Potentiometers
TSSOP
1
P3A
P3W
2
P3B
3
4
CS
5
SCK
SDI
6
7
V
SS
8
P1B
9
P1W
10
P1A
MCP43X1 Quad Potentiometers
4x4 QFN*
18
20
19
P3B
1
CS
2
EP
SCK
3
21
SDI
4
V
5
SS
8
6
7
MCP43X2 Quad Rheostat
TSSOP
1
P3W
2
P3B
3
CS
4
SCK
5
SDI
6
V
SS
7
P1B
* Includes Exposed Thermal Pad (EP); see
20
P2A
19
P2W
18
P2B
17
V
DD
16
SDO
15
RESET
14
NC
13
P0B
12
P0W
P0A
11
17
16
15
V
DD
SDO
14
RESET
13
NC
12
P0B
11
9
10
14
P2W
13
P2B
12
V
DD
11
SDO
10
P0B
9
P0W
8
P1W
Table
3-1.
DS22242A-page 1

MCP4331-104E/ML Summary of contents

  • Page 1

    ... Device Characteristics Specified - 1.8V to 5.5V – Device Operation • Wide Bandwidth (-3 dB) Operation MHz (typical) for 5.0 k device • Extended Temperature Range (-40°C to +125°C)  2010 Microchip Technology Inc. MCP433X/435X Package Types (Top View) MCP43X1 Quad Potentiometers TSSOP 1 ...

  • Page 2

    ... Interface SCK Module and SDI Control SDO Logic RESET Memory (16x9) Wiper0 (V) Wiper1 (V) Wiper2 (V) Wiper3 (V) TCON0 TCON1 Device Features Wiper Device Configuration (1) MCP4331 4 Potentiometer MCP4332 4 Rheostat (1) MCP4341 4 Potentiometer MCP4342 4 Rheostat (1) MCP4351 4 Potentiometer MCP4352 4 Rheostat (1) MCP4361 4 Potentiometer MCP4362 4 Rheostat Note 1: Floating either terminal ( allows the device to be used as a Rheostat (variable resistor). ...

  • Page 3

    ... Maximum Junction Temperature (T ) .............. +150°C J  2010 Microchip Technology Inc. † Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied ...

  • Page 4

    ... WFSE ), which changes significantly over voltage and W  +125°C (extended) = 5.5V +25° Conditions  4.5V The CS pin will be at one DD of three input levels < 4. (Note IHH ) < V RAM BOR = 5.5V SCK @ 5 MHz 5. 5.5V IHH  2010 Microchip Technology Inc. ...

  • Page 5

    ... The MCP43X1 is externally connected to match the configurations of the MCP43X2, and then tested. 9: POR/BOR is not rate dependent. 10: Supply current is independent of current through the resistor network.  2010 Microchip Technology Inc. –40°C  +2.7V to 5.5V, 5 k, 10 k, 50 k, 100 k devices. ...

  • Page 6

    ... Full Scale or Zero Scale. (Note 6) — 100 — nA MCP43X1 PxA = PxW = PxB = V — 100 — nA MCP43X2 PxB = PxW = V with and and V . WZSE WFSE ), which changes significantly over voltage and W  +125°C (extended) = 5.5V +25° Conditions SS SS  2010 Microchip Technology Inc. ...

  • Page 7

    ... The MCP43X1 is externally connected to match the configurations of the MCP43X2, and then tested. 9: POR/BOR is not rate dependent. 10: Supply current is independent of current through the resistor network.  2010 Microchip Technology Inc. –40°C  +2.7V to 5.5V, 5 k, 10 k, 50 k, 100 k devices. ...

  • Page 8

    ... I = 150 µA W 8-bit 5.5V µA W 3.0V µA W (Note 7) 1.8V µA W 7-bit 5.5V µA W 3.0V µA W (Note 7) 1.8V µA W 8-bit 5.5V µA W 3.0V µA W (Note 7) 1.8V µA W 7-bit 5.5V µA W 3.0V µA W (Note 7) 1.8V µA W  2010 Microchip Technology Inc. ...

  • Page 9

    ... The MCP43X1 is externally connected to match the configurations of the MCP43X2, and then tested. 9: POR/BOR is not rate dependent. 10: Supply current is independent of current through the resistor network.  2010 Microchip Technology Inc. –40°C  +2.7V to 5.5V, 5 k, 10 k, 50 k, 100 k devices. ...

  • Page 10

    ... Pin can tolerate V V — 0. — 0. — — with and and V . WZSE WFSE ), which changes significantly over voltage and W  +125°C (extended) = 5.5V +25° Conditions  5.5V DD with  2. less. MAX = -2  2010 Microchip Technology Inc. ...

  • Page 11

    ... The MCP43X1 is externally connected to match the configurations of the MCP43X2, and then tested. 9: POR/BOR is not rate dependent. 10: Supply current is independent of current through the resistor network.  2010 Microchip Technology Inc. –40°C  +2.7V to 5.5V, 5 k, 10 k, 50 k, 100 k devices. ...

  • Page 12

    ... All parameters apply across the specified operating ranges unless noted +2.7V to 5.5V, 5 k, 10 k, 50 k, 100 k devices. DD Typical specifications represent values for V Min Typ Max Units 50 — — ns — —  +125°C (extended 5.5V +25° Conditions  2010 Microchip Technology Inc. ...

  • Page 13

    ... SDO output high-impedance IH 80 SDO data output valid after SCK edge 83 CS Inactive (V ) after SCK edge IH 84 Hold time of CS Inactive ( Active ( IHH Note 1: This specification by design.  2010 Microchip Technology Inc. V IHH MSb BIT6 - - - - - -1 75, 76 BIT6 - - - - Symbol Min F — SCK — ...

  • Page 14

    ... DD 1 MHz V = 1.8V to 2.7V DD — ns — 2.7V to 5.5V DD — 1.8V to 2.7V DD — 2.7V to 5.5V DD — 1.8V to 2.7V DD — 2.7V to 5.5V DD — 1.8V to 2.7V DD — Note 2.7V to 5.5V DD 170 1. — 2. 1.8V to 2.7V DD — ns  2010 Microchip Technology Inc. ...

  • Page 15

    ... Electrical Specifications: Unless otherwise indicated, V Parameters Temperature Ranges Specified Temperature Range Operating Temperature Range Storage Temperature Range Thermal Package Resistances Thermal Resistance, 14L-TSSOP Thermal Resistance, 20L-QFN Thermal Resistance, 20L-TSSOP  2010 Microchip Technology Inc. MCP433X/435X = +2.7V to +5.5V Sym Min Typ Max Units T -40 — ...

  • Page 16

    ... MCP433X/435X NOTES: DS22242A-page 16  2010 Microchip Technology Inc. ...

  • Page 17

    ... Ambient Temperature SCK (V = 2.7V and 5.5V). DD 3.0 2.5 5.5V 2.0 1.5 1.0 2.7V 0.5 0.0 - Ambient Temperature (°C) FIGURE 2-2: Device Current ( ( vs. Ambient Temperature  2010 Microchip Technology Inc. MCP433X/435X = 5V 0V 250 200 150 100 10.00 12.00 ) vs. SPI FIGURE 2-3: DD Resistance (R Voltage ( ...

  • Page 18

    ... INL 25C INL 85C INL 125C INL -40C DNL 25C DNL 85C DNL 125C DNL 98 INL DNL 128 192 256 Wiper Setting (decimal) resistance variation char- W > 2.7V. DD   Rheo Mode – 1.8V 260 µA  2010 Microchip Technology Inc. ...

  • Page 19

    ... Ambient Temperature (°C)  FIGURE 2-11 – Nominal Resistance  vs. Ambient Temperature and V AB  2010 Microchip Technology Inc 6000 5000 4000 2.7V 3000 2000 1000 0 80 120 0 FIGURE 2-12: . Setting and Ambient Temperature ...

  • Page 20

    ... BW(code=n, 125°C) BW(code=n, /165°C * 1,000,000) = 190 µA). W CH0 CH1 CH2 CH3 128 160 192 224 256 Wiper Code resistance variation char- W > 2.7V. DD  – R PPM/°C vs BW(code=n, 125°C) BW(code=n, /165°C * 1,000,000) = 190 µA). W  2010 Microchip Technology Inc. ...

  • Page 21

    ... FIGURE 2-22 – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div).  FIGURE 2-23 – Power-Up Wiper Response Time (20 ms/Div).  2010 Microchip Technology Inc FIGURE 2-24: = 5.5V) Increment Wiper Settling Time ( µs/Div). FIGURE 2-25: = 2.7V) Increment Wiper Settling Time ( µ ...

  • Page 22

    ... INL 25C INL 88 85C INL 125C INL -40C DNL 25C DNL 85C DNL 125C DNL 78 INL DNL 128 192 256 Wiper Setting (decimal) resistance variation char- W > 2.7V. DD   Rheo Mode – 1.8V 125 µA  2010 Microchip Technology Inc ...

  • Page 23

    ... Ambient Temperature (°C)  FIGURE 2-32 – Nominal Resistance  vs. Ambient Temperature and V AB  2010 Microchip Technology Inc 12000 10000 8000 6000 4000 2000 0 80 120 0 FIGURE 2-33: . Setting and Ambient Temperature ...

  • Page 24

    ... BW(code=n, 125°C) BW(code=n, /165°C * 1,000,000) = 150 µA). W CH0 CH1 CH2 CH3 128 160 192 224 256 Wiper Code resistance variation char- W > 2.7V. DD  – R PPM/°C vs BW(code=n, 125°C) BW(code=n, /165°C * 1,000,000) = 150 µA). W  2010 Microchip Technology Inc. ...

  • Page 25

    ... FIGURE 2-42 – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div).  FIGURE 2-43 – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div).  2010 Microchip Technology Inc FIGURE 2-44: = 5.5V) Increment Wiper Settling Time ( µs/Div). FIGURE 2-45: = 2.7V) Increment Wiper Settling Time ( µ ...

  • Page 26

    ... DNL 63.5 RW 58.5 53.5 INL 48.5 43.5 38.5 33.5 28.5 23.5 18.5 13.5 DNL 8.5 3.5 -1.5 64 128 192 256 Wiper Setting (decimal) resistance variation char- W > 2.7V. DD   Rheo Mode – 1.8V µA  2010 Microchip Technology Inc ...

  • Page 27

    ... Ambient Temperature (°C)  FIGURE 2-52 – Nominal Resistance  vs. Ambient Temperature and V AB  2010 Microchip Technology Inc 60000 50000 40000 30000 20000 10000 0 80 120 0 FIGURE 2-53: . Setting and Ambient Temperature ...

  • Page 28

    ... BW(code=n, 125°C) BW(code=n, /165°C * 1,000,000 µA). W CH0 CH1 CH2 CH3 128 160 192 224 256 Wiper Code resistance variation char- W > 2.7V. DD  – R PPM/°C vs BW(code=n, 125°C) BW(code=n, /165°C * 1,000,000 µA). W  2010 Microchip Technology Inc. ...

  • Page 29

    ... FIGURE 2-62 – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div).  FIGURE 2-63 – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div).  2010 Microchip Technology Inc FIGURE 2-64: = 5.5V) Increment Wiper Settling Time ( µs/Div). FIGURE 2-65: = 2.7V) Increment Wiper Settling Time ( µ ...

  • Page 30

    ... INL 25C INL 85C INL 125C INL 54 -40C DNL 25C DNL 85C DNL 125C DNL INL DNL 128 192 256 Wiper Setting (decimal) resistance variation char- W > 2.7V. DD  100 k Rheo Mode – 1.8V µA  2010 Microchip Technology Inc. ...

  • Page 31

    ... Ambient Temperature (°C)  FIGURE 2-72: 100 k – Nominal  Resistance ( vs. Ambient Temperature AB and  2010 Microchip Technology Inc 120000 100000 80000 60000 40000 20000 0 80 120 0 FIGURE 2-73: Setting and Ambient Temperature (V = 5.5V 120000 ...

  • Page 32

    ... BW(code=n, 125°C) BW(code=n, /165°C * 1,000,000 µA). W CH0 CH1 CH2 CH3 128 160 192 224 256 Wiper Code resistance variation char- W > 2.7V. DD  100 k – R PPM/°C vs BW(code=n, 125°C) BW(code=n, /165°C * 1,000,000 µA). W  2010 Microchip Technology Inc. ...

  • Page 33

    ... FIGURE 2-82: 100 k – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div).  FIGURE 2-83: 100 k – Low-Voltage Decrement Wiper Settling Time (V (1 µs/Div).  2010 Microchip Technology Inc FIGURE 2-84: = 5.5V) Increment Wiper Settling Time ( µs/Div). FIGURE 2-85: = 2.7V) ...

  • Page 34

    ... RESET) vs. V and Temperature. DD DS22242A-page -10 -15 -20 -25 -30 -35 -40 -45 120 -40 0 FIGURE 2-88: Temperature 120 -40 0 FIGURE 2-89: Temperature. 2.7V 5. 120 Temperature (°C) I (SDO) vs. V and OH DD 5.5V 2. 120 Temperature (°C) I (SDO) vs. V and OL DD  2010 Microchip Technology Inc. ...

  • Page 35

    ... POR/BOR Trip point vs. V and Temperature. 14.2 14.1 14.0 13.9 2.7V 13.8 13.7 13.6 13.5 13.4 - Temperature (°C) FIGURE 2-91: SCK Input Frequency vs. Voltage and Temperature.  2010 Microchip Technology Inc. 2.1 Test Circuits = +25° Offset GND 120 FIGURE 2-92: DD Measurement. floating 5.5V B ...

  • Page 36

    ... MCP433X/435X NOTES: DS22242A-page 36  2010 Microchip Technology Inc. ...

  • Page 37

    ... The QFN package has a contact on the bottom of the package. This contact is conductively connected to the die substrate, and therefore should be unconnected or connected to the same ground as the device’s V pin. SS  2010 Microchip Technology Inc. MCP433X/435X Table 3-1. Weak Pull-up/ Buffer ...

  • Page 38

    ... This pad should be tied to the same potential as the V pin (or left unconnected). This pad could be SS used to assist as a heat sink for the device when connected to a PCB heat sink. is connected to the internal and less than V (2.7V), the DD min  2010 Microchip Technology Inc. ...

  • Page 39

    ... Volatile wiper register is loaded with the default value • The TCON registers are loaded with their default value • The device is capable of digital operation  2010 Microchip Technology Inc. 4.1.2 BROWN-OUT RESET When the device powers down, the device V cross the V ...

  • Page 40

    ... Mid scale 80h 40h Mid scale 80h 40h Factory (1) Initialization 7-bit 040h 8-bit 080h 7-bit 040h 8-bit 080h — — 1FFh — 7-bit 040h 8-bit 080h 7-bit 040h 8-bit 080h — — 1FFh — ). IHH  2010 Microchip Technology Inc. ...

  • Page 41

    ... P0B pin is connected to the Resistor 0 Network 0 = P0B pin is disconnected from the Resistor 0 Network Note 1: These bits do not affect the wiper register values.  2010 Microchip Technology Inc. disconnected from the resistor network. This allows the system to minimize the currents through the digital potentiometer. ...

  • Page 42

    ... P2B pin is disconnected from the Resistor 2 Network Note 1: These bits do not affect the wiper register values. DS22242A-page 42 (1) R/W-1 R/W-1 R/W-1 R3W R3B R2HW U = Unimplemented bit, read as ‘0’ ‘0’ = Bit is cleared R/W-1 R/W-1 R/W-1 R2A R2W R2B bit Bit is unknown  2010 Microchip Technology Inc. ...

  • Page 43

    ... FIGURE 5-1: Resistor Block Diagram.  2010 Microchip Technology Inc. 5.1 Resistor Ladder Module The resistor ladder is a series of equal value resistors (R ) with a connection point (tap) between the two S resistors. The total number of resistors in the series ...

  • Page 44

    ... VOLATILE WIPER VALUE VS. WIPER POSITION MAP Properties Reserved (Full Scale (W = A)), Increment and Decrement commands ignored Full Scale (W = A), Increment commands ignored (Mid Scale Zero Scale ( Decrement command ignored  2010 Microchip Technology Inc. ...

  • Page 45

    ... In other words, the RxHW bit does not corrupt the state of the RxA, RxW and RxB bits.  2010 Microchip Technology Inc. MCP433X/435X The RxHW bit does NOT corrupt the values in the Volatile Wiper Registers nor the TCON register. When the Shutdown mode is exited (RxHW bit = 1): • ...

  • Page 46

    ... MCP433X/435X NOTES: DS22242A-page 46  2010 Microchip Technology Inc. ...

  • Page 47

    ... I/O Note 1: If high voltage commands are desired, some type of external circuitry needs to be implemented. FIGURE 6-1: Typical SPI Interface Block Diagram.  2010 Microchip Technology Inc. MCP433X/435X Typical SPI Interface is shown in interface, the Master’s Output pin is connected to the Slave’s Input pin and the Master’s Input pin is connected to the Slave’ ...

  • Page 48

    ... The high voltage capability of the CS pin allows High Voltage commands. Table 6-1 commands allows circuit compatibility with the corresponding nonvolatile device. (1) Write, Increment, Decrement 10 MHz ) to an active state exit the the IH ), the serial the IL Support of High Voltage  2010 Microchip Technology Inc. ...

  • Page 49

    ... Input Sample FIGURE 6-3: 16-Bit Commands (Write, Read) – SPI Waveform (Mode 0,0).  2010 Microchip Technology Inc. 6.2.2 MODE 1,1 In Mode 1,1: SCK Idle state = high (V clocked in on the SDI pin on the rising edge of SCK and clocked out on the SDO pin on the falling edge of SCK ...

  • Page 50

    ... AD2 AD1 AD0 C1 CMDERR bit “1” = Valid Command “0” = Invalid Command bit2 bit1 bit0 X X bit0 CMDERR bit “1” = Valid Command “0” = Invalid Command bit2 bit1 bit0 bit0  2010 Microchip Technology Inc. ...

  • Page 51

    ... Bits Address Command Bits FIGURE 7-1: General SPI Command Formats.  2010 Microchip Technology Inc. 7.1 Command Byte The command byte has three fields, the address, the command, and 2 data bits, see only one of the data bits is defined (D8). This is for the Write command ...

  • Page 52

    ... Microchip Technology Inc. (2) MISO (SDO pin) 1111 1111 nnnn nnnn 1111 1111 1111 1111 1111 1111 nnnn nnnn 1111 1111 1111 1111 — ...

  • Page 53

    ... All following SDO bits will be low until the CMDERR condition is cleared by forcing the CS pin to the inactive state (  2010 Microchip Technology Inc. MCP433X/435X 7.3.1 ABORTING A TRANSMISSION All SPI transmissions must have the correct number of SCK pulses to be executed. The command is not executed until the complete number of clocks have been received ...

  • Page 54

    ... SCK pin corrupting the desired SPI command string. Command Name High # of Voltage Bits ( IHH CS pin? 16-Bits — 16-Bits — 8-Bits — 8-Bits — 16-Bits Yes 16-Bits Yes 8-Bits Yes 8-Bits Yes  2010 Microchip Technology Inc. ...

  • Page 55

    ... Note Error Condition occurs (CMDERR = L), all following SDO bits will be low until the CMDERR condition is cleared (the CS pin is forced to the inactive state). FIGURE 7-2: Write Command – SDI and SDO States.  2010 Microchip Technology Inc. MCP433X/435X 7.5.1 SINGLE WRITE TO VOLATILE ...

  • Page 56

    ... The writes do not need the same volatile memory address. COMMAND BYTE SDI SDO Note Command Error (CMDERR) occurs at this bit location (*), then all following SDO bits will be driven low until the CS pin is driven inactive (V FIGURE 7-3: Continuous Write Sequence. DS22242A-page 56 DATA BYTE  2010 Microchip Technology Inc. ...

  • Page 57

    ... D SDO FIGURE 7-4: Read Command – SDI and SDO States.  2010 Microchip Technology Inc. MCP433X/435X 7.6.1 SINGLE READ The read operation requires that the CS pin be in the active state (V IL the inactive state ( The 16-bit Read command (command IL IHH byte and data byte) is then clocked in on the SCK and SDI pins ...

  • Page 58

    ... Note Command Error (CMDERR) occurs at this bit location (*), then all following SDO bits will be driven low until the CS pin is driven inactive (V FIGURE 7-5: Continuous Read Sequence. DS22242A-page 58 Figure 7-5 shows the sequence for three continuous reads. The reads do not need the same memory address. DATA BYTE  2010 Microchip Technology Inc. ...

  • Page 59

    ... Note: Table 7-2 shows the valid addresses for the Increment Wiper command. Other addresses are invalid.  2010 Microchip Technology Inc. MCP433X/435X 7.7.1 SINGLE INCREMENT Typically, the CS pin starts at the inactive state (V but may already be in the active state due to the completion of another command ...

  • Page 60

    ... Driving the CS pin to V should occur as soon as possible (within device specifications) after the last desired increment occurs. COMMAND BYTE (INCR COMMAND (n+2)) (INCR COMMAND (n+3 ensure that IH IH COMMAND BYTE Note Note Note Note  2010 Microchip Technology Inc. ...

  • Page 61

    ... Note: Table 7-2 shows the valid addresses for the Decrement Wiper command. Other addresses are invalid.  2010 Microchip Technology Inc. 7.8.1 SINGLE DECREMENT Typically, the CS pin starts at the inactive state (V but may already be in the active state due to the completion of another command. ...

  • Page 62

    ... Driving the CS pin to V should occur as soon as possible (within device specifications) after the last desired decrement occurs. COMMAND BYTE (DECR COMMAND (n-1)) (DECR COMMAND (n-1 ensure that IH IH COMMAND BYTE Note Note Note Note  2010 Microchip Technology Inc. ...

  • Page 63

    ... So this PIC MCU operating at 3.3V will drive 2.64V, and for the MCP43XX operating OH at 5.5V, the V is 2.47V. Therefore, the interface IH signals meet specifications.  2010 Microchip Technology Inc. MCP433X/435X 5V Voltage Regulator PIC = 2. FIGURE 8-1: System 1. Voltage ...

  • Page 64

    ... User’s Guide” Input Balance FIGURE 8-5: using Terminal Disconnects MCP4XXX MCP4XXX Nonvolatile terminals could be used. rheostat value to the Common B. rheostat value to the Common A. The and Common base W of Transistor (or Amplifier) B Common B Bias Example Application Circuit  2010 Microchip Technology Inc. ...

  • Page 65

    ... V DD 0.1 µ FIGURE 8-6: Typical Microcontroller Connections.  2010 Microchip Technology Inc. MCP433X/435X 8.4.2 LAYOUT CONSIDERATIONS Several layout considerations may be applicable to your application. These may include: • Noise • Footprint Compatibility • PCB Area Requirements 8.4.2.1 Noise Inductively-coupled AC transients and digital switching noise can degrade the input and output signal integrity, potentially masking the MCP43XX’ ...

  • Page 66

    ... R resistance. AB 8.4.4 HIGH VOLTAGE TOLERANT PINS High voltage support ( the Serial Interface pins IHH supports in-circuit accommodation applications and power supply sync issues.  2010 Microchip Technology Inc. (1) 32.64 2.04 16.00 1 42.24 2.64 Figure 2-11, of split rail ...

  • Page 67

    ... Optimizing the Digital Potentiometer in Precision Circuits AN219 Comparing Digital Potentiometers to Mechanical Potentiometers — Digital Potentiometer Design Guide — Signal Chain Design Guide  2010 Microchip Technology Inc. MCP433X/435X 9.2 Technical Documentation Several additional technical documents are available to assist you in your design and development. These technical documents Technical Briefs, and Design Guides ...

  • Page 68

    ... MCP433X/435X NOTES: DS22242A-page 68  2010 Microchip Technology Inc. ...

  • Page 69

    ... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information.  2010 Microchip Technology Inc. MCP433X/435X Example 4352502E 1004 ...

  • Page 70

    ... MCP433X/435X /HDG 3ODVWLF 7KLQ 6KULQN 6PDOO 2XWOLQH 67 ±  PP %RG\ >76623@ 1RWH NOTE 1RWHV DS22242A-page  2010 Microchip Technology Inc. φ L ...

  • Page 71

    ... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2010 Microchip Technology Inc. MCP433X/435X DS22242A-page 71 ...

  • Page 72

    ... MCP433X/435X /HDG 3ODVWLF 4XDG )ODW 1R /HDG 3DFNDJH 0/ ± [[ PP %RG\ >4)1@ 1RWH D TOP VIEW A3 1RWHV DS22242A-page 72 EXPOSED PAD NOTE 1 BOTTOM VIEW  2010 Microchip Technology Inc. ...

  • Page 73

    ... Microchip Technology Inc. MCP433X/435X DS22242A-page 73 ...

  • Page 74

    ... MCP433X/435X /HDG 3ODVWLF 7KLQ 6KULQN 6PDOO 2XWOLQH 67 ±  PP %RG\ >76623@ 1RWH NOTE 1RWHV DS22242A-page  2010 Microchip Technology Inc. φ L ...

  • Page 75

    ... Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2010 Microchip Technology Inc. MCP433X/435X DS22242A-page 75 ...

  • Page 76

    ... MCP433X/435X NOTES: DS22242A-page 76  2010 Microchip Technology Inc. ...

  • Page 77

    ... Note: Original TSSOP-20 device samples used the example marking shown in Figure A-1. Future device samples will usE the part marking shown in Section 10. Figure A-1: Old example TSSOP-20 device marking. Example MCP4351 e EST 256 3 ^^ 1004  2010 Microchip Technology Inc. MCP433X/435X DS22242A-page 77 ...

  • Page 78

    ... MCP433X/435X NOTES: DS22242A-page 78  2010 Microchip Technology Inc. ...

  • Page 79

    ... For the MCP433X/435X devices, the analog operation is specified at a minimum of 2.7V. Device testing has Terminal A connected to the device V potentiometer configuration only) and Terminal B connected  2010 Microchip Technology Inc. MCP433X/435X B.1 Low-Voltage Operation This appendix gives semiconductor characteristics at lower voltages. This is ...

  • Page 80

    ... This may effect the )/ and R Measurement resistor is a series of 256 R AB Figure B-7. The wiper , V and V ). Temperature also G W WCn resistors WCn , V and V . The wiper switch voltage determines how strongly WCn will be high will be in the typical range. W  2010 Microchip Technology Inc ...

  • Page 81

    ... WCn FIGURE B-7: Wiper Switch.  2010 Microchip Technology Inc. So looking at the wiper voltage (V 3.0V and 1.8V data gives the graphs in Figure B-9. In the 1.8V graph, as the V 0.8V, the voltage increases nonlinearly. Since and the current (I device resistance increased nonlinearly at around wiper code 160 ...

  • Page 82

    ... NMOS and PMOS , R ) and NMOS PMOS ) VS NMOS PMOS R W 0.6 1.2 1.8 2.4 3.0 V Voltage IN NMOS and PMOS , R ) and NMOS PMOS ) VS NMOS PMOS R W 0.3 0.6 0.9 1.2 1.5 1.8 V Voltage IN NMOS and PMOS , R ) and NMOS PMOS ) VS  2010 Microchip Technology Inc. ...

  • Page 83

    ... DD DD range. With respect to the voltages on the resistor net- work node, at 1.8V the V voltage would range from W 0.29V to 0.38V. These voltages cause the wiper resistance the linear region (see  2010 Microchip Technology Inc FIGURE B-15 B-15) we TABLE B-1: OUT ...

  • Page 84

    ... EXAMPLE #2 VOLTAGE CALCULATIONS Variation Min Typ R1 10,000 10,000 R2 10,000 10,000 R (max) 8,000 10,000 FS) 0.667 V 0.643 V OUT ZS) 0.50 V 0.50 V OUT FS) 0.333 V 0.286 ZS Legend: FS – Full Scale, ZS – Zero Scale DS22242A-page 84 Max 10,000 10,000 12,000 0.687 0.375  2010 Microchip Technology Inc. ...

  • Page 85

    ... Microchip Technology Inc. MCP433X/435X Examples: /XX a) MCP4331-502E/XX: Package b) MCP4331T-502E/XX: T/R, 5 k20-LD Device c) MCP4331-103E/XX: d) MCP4331T-103E/XX: T/R, 10 k, 20-LD Device e) MCP4331-503E/XX: f) MCP4331T-503E/XX: T/R, 50 k, 20-LD Device g) MCP4331-104E/XX: h) MCP4331T-104E/XX: T/R, 100 k, a) MCP4332-502E/XX: b) MCP4332T-502E/XX: T/R, 5 k14-LD Device ...

  • Page 86

    ... MCP433X/435X NOTES: DS22242A-page 86  2010 Microchip Technology Inc. ...

  • Page 87

    ... PICtail, REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

  • Page 88

    ... Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350  2010 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...