ISL22343WFR20Z-TK Intersil, ISL22343WFR20Z-TK Datasheet

IC POT DGTL 256TP LN LP 20-QFN

ISL22343WFR20Z-TK

Manufacturer Part Number
ISL22343WFR20Z-TK
Description
IC POT DGTL 256TP LN LP 20-QFN
Manufacturer
Intersil
Series
XDCP™r
Datasheet

Specifications of ISL22343WFR20Z-TK

Taps
256
Resistance (ohms)
10K
Number Of Circuits
4
Temperature Coefficient
85 ppm/°C Typical
Memory Type
Non-Volatile
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.25 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
20-TQFN Exposed Pad
Resistance In Ohms
10K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL22343WFR20Z-TK
Manufacturer:
SIEMENS
Quantity:
100
Low Noise, Low Power, I
The ISL22343 integrates four digitally controlled
potentiometers (DCP), control logic and non-volatile memory
on a monolithic CMOS integrated circuit.
The digitally controlled potentiometer is implemented with a
combination of resistor elements and CMOS switches. The
position of the wipers are controlled by the user through the
I
volatile Wiper Register (WRi) and a non-volatile Initial Value
Register (IVRi) that can be directly written to and read by the
user. The contents of the WRi control the position of the
corresponding wiper. At power up the device recalls the
contents of the DCP’s IVRi to the correspondent WRi.
The ISL22343 also has 11 general purpose non-volatile
registers that can be used as storage of lookup table for
multiple wiper position or any other valuable information.
The ISL22343 features a dual supply, that is beneficial for
applications requiring a bipolar range for DCP terminals
between V- and VCC.
Each DCP can be used as three-terminal potentiometers or
as two-terminal variable resistors in a wide variety of
applications including control, parameter adjustments, and
signal processing.
Ordering Information
NOTES:
ISL22343TFV20Z
ISL22343TFR20Z
ISL22343UFV20Z
ISL22343UFR20Z
ISL22343WFV20Z
ISL22343WFR20Z
2
1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte
2. Add “-TK” suffix for tape and reel. Please refer to TB347 for details on reel specifications
C bus interface. The potentiometer has an associated
PART NUMBER
tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations.
Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J
STD-020.
(Notes 1, 2)
22343 TFVZ
22343 TFRZ
22343 UFVZ
22343 UFRZ
22343 WFVZ
22343 WFRZ
PART MARKING
®
1
2
Quad Digitally Controlled Potentiometer (XDCP™)
C
Data Sheet
®
Bus, 256 Taps
1-888-INTERSIL or 1-888-468-3774
RESISTANCE
OPTION
(kΩ)
100
100
50
50
10
10
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
TEMPERATURE
Features
• Four potentiometers in one package
• 256 resistor taps
• I
• Non-volatile EEPROM storage of wiper position
• 11 General Purpose non-volatile registers
• High reliability
• Wiper resistance: 70Ω typical @ 1mA
• Standby current <4µA max
• Shutdown current <4µA max
• Dual power supply
• 10kΩ, 50kΩ or 100kΩ total resistance
• Extended industrial temperature range: -40°C to +125
• 20 Ld TSSOP or 20 Ld QFN
• Pb-free (RoHS compliant)
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
-40 to +125
|
- Three address pins, up to eight devices per bus
- Endurance: 1,000,000 data changes per bit per register
- Register data retention: 50 years @ T ≤ +55
- VCC = 2.25V to 5.5V
- V- = -2.25V to -5.5V
2
RANGE
Intersil (and design) and XDCP are registered trademarks of Intersil Americas Inc.
C serial interface
(°C)
March 13, 2008
All other trademarks mentioned are the property of their respective owners.
Copyright Intersil Americas Inc. 2007, 2008. All Rights Reserved
20 Ld TSSOP
20 Ld QFN
20 Ld TSSOP
20 Ld QFN
20 Ld TSSOP
20 Ld QFN
PACKAGE
(Pb-free)
L20.5x5
L20.5x5
L20.5x5
M20.173
M20.173
M20.173
ISL22343
PKG. DWG. #
FN6423.1
°
C
°
C

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ISL22343WFR20Z-TK Summary of contents

Page 1

... ISL22343UFR20Z 22343 UFRZ ISL22343WFV20Z 22343 WFVZ ISL22343WFR20Z 22343 WFRZ NOTES: 1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations. ...

Page 2

Block Diagram SCL SDA A0 INTERFACE A1 A2 Pinouts ISL22343 (20 LEAD TSSOP) TOP VIEW 1 RH3 2 RL3 3 RW3 SCL 6 SDA 7 GND 8 RW2 9 RL2 10 RH2 2 ISL22343 VCC V- POWER-UP, ...

Page 3

... EPAD* NOTE: *PCB thermal land for QFN EPAD should be connected to V- plane or left floating. For more information refer to http://www.intersil.com/data/tb/TB389.pdf 3 ISL22343 RH3 “High” terminal of DCP3 RL3 “Low” terminal of DCP3 RW3 “Wiper” terminal of DCP3 2 A2 Device address input for the I ...

Page 4

... Thermal Resistance (Typical, Note 3) 20 Lead TSSOP . . . . . . . . . . . . . . . . . . . . . . . .95 +0 Lead QFN (Note .32 Maximum Junction Temperature (Plastic Package +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp CC Recommended Operating Conditions Temperature Range (Full Industrial .-40°C to +125°C Power Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15mW -2.25V to -5.5V Max Wiper Current ± ...

Page 5

Analog Specifications Over recommended operating conditions unless otherwise stated. (Continued) SYMBOL PARAMETER V DCP-to-DCP Matching MATCH (Note 11) TC (Note 12) Ratiometric Temperature Coefficient V f -3dB Cut Off Frequency cutoff (Note 19) RESISTOR MODE (Measurements between RWi and RLi ...

Page 6

Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL PARAMETER I V Current (Standby Current (Standby) V- Current (Shutdown Current (Shutdown) V-SD I Leakage Current, at Pins ...

Page 7

Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL PARAMETER SERIAL INTERFACE SPECS V A1, A0, A2, SDA, and SCL IL Input Buffer LOW Voltage V A1, A0, A2, SDA, and SCL IH Input Buffer HIGH Voltage ...

Page 8

Operating Specifications Over the recommended operating conditions unless otherwise specified. (Continued) SYMBOL PARAMETER Cb Capacitive Loading of SDA (Note 19) or SCL Rpu SDA and SCL Bus Pull-up (Note 19) Resistor Off-chip t A1 and A0 Setup Time SU:A t ...

Page 9

DCP Macro Model R TOTAL 10pF 25pF RW SDA vs SCL Timing SCL t SU:STA t HD:STA SDA (INPUT TIMING) SDA (OUTPUT TIMING) A2, A1 and A0 Pin Timing START SCL SDA A2, A1, A0 ...

Page 10

Typical Performance Curves 100 150 TAP POSITION (DECIMAL) FIGURE 1. WIPER RESISTANCE vs TAP POSITION [ I(RW FOR 10kΩ (W) CC TOTAL 0. ...

Page 11

Typical Performance Curves 0 5.5V CC 0.25 0 -0. 2.25V CC -0. 100 150 TAP POSITION (DECIMAL) FIGURE 7. DNL vs TAP POSITION IN RHEOSTAT MODE FOR 10kΩ (W) 1.60 1.20 0.80 5.5V 0.40 ...

Page 12

Typical Performance Curves SCL WIPER FIGURE 13. MIDSCALE GLITCH, CODE 7Fh TO 80h Pin Description Potentiometers Pins RHI AND RLI The high (RHi) and low (RLi) terminals of the ISL22343 are equivalent to the fixed terminals of a mechanical potentiometer. ...

Page 13

RWi and RLi increases monotonically, while the resistance between RHi and RWi decreases monotonically. While the ISL22343 is being powered up, the WRi is reset to 80h (128 decimal), which locates RWi roughly at the ...

Page 14

SCL is HIGH (see Figure 16). A STOP condition at the end of a read operation the end of a write operation places the device in its standby mode. An ACK (Acknowledge software convention used to ...

Page 15

... Amplifier ISL28272 to adjust output offset to zero voltages. DCP1 programs the gain of the ISL28272 from 90 to 110 with 5V output for 10A current through current sense resistor. DCP2 and DCP3 are used for another channel of dual ISL28272 correspondently (not shown in Figure 20). More application examples can be found at http://www.intersil.com/data/an/AN1145.pdf ...

Page 16

DC/DC CONVERTER OUTPUT 0.005Ω 10k 0.1µF + 50k, 1% RH0 R 2 RW0 1k, 1% 50k RL0 DCP0 (1/4 ISL22343U) PROGRAMMABLE OFFSET ±25mV R 3 50k, 1% -5V + bus -5V FIGURE 20. CURRENT ...

Page 17

... Dimensions D2 and E2 are for the exposed pads which provide improved electrical and thermal performance. 8. Nominal dimensions are provided to assist with PCB Land Pattern Design efforts, see Intersil Technical Brief TB389. 9. Features and dimensions A2, A3, D1, E1, P & θ are present when Anvil singulation method is used and not present for saw singulation. 10. Compliant to JEDEC MO-220VHHC Issue I except for the " ...

Page 18

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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