MCP121T-195I/TT Microchip Technology, MCP121T-195I/TT Datasheet

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MCP121T-195I/TT

Manufacturer Part Number
MCP121T-195I/TT
Description
IC SUPERVISOR 1.95V LOW SOT-23B
Manufacturer
Microchip Technology
Type
Simple Reset/Power-On Resetr
Datasheet

Specifications of MCP121T-195I/TT

Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active Low
Reset Timeout
80 ms Minimum
Voltage - Threshold
1.9V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
Monitored Voltage
1.9 V
Manual Reset
Not Resettable
Watchdog
No Watchdog
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1 V
Supply Current (typ)
20 uA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MCP121T-195I/TTTR
Features
• Ultra low supply current: 1.75 µA
• Precision monitoring options of:
• Resets microcontroller in a power-loss event
• RST pin (Active-low):
• Reset Delay Timer (120 ms delay, typ.)
• Available in SOT23-3, TO-92 and SC-70
• Temperature Range:
• Pb-free devices
Applications
• Critical Microcontroller and Microprocessor
• Computers
• Intelligent Instruments
• Portable Battery-powered Equipment
General Description
The MCP102/103/121/131 are voltage supervisor
devices designed to keep a microcontroller in reset
until the system voltage has reached and stabilized at
the proper level for reliable system operation. Table 1
shows the available features for these devices.
TABLE 1:
© 2005 Microchip Technology Inc.
MCP102 Push-pull
MCP103 Push-pull
MCP121 Open-drain External
MCP131 Open-drain Internal (~95 k ) 120 ms
MCP111 Open-drain External
MCP112 Push-Pull
Device
(steady-state max.)
- 1.90V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V
- MCP121: Active-low, open-drain
- MCP131: Active-low, open-drain with internal
- MCP102 and MCP103: Active-low, push-pull
packages
- Extended: -40°C to +125°C
- Industrial: -40°C to +85°C (MCP1XX-195 only)
Power-monitoring Applications
and 4.63V
pull-up resistor
(except MCP1XX-195)
Type
DEVICE FEATURES
Output
No
No
No
Pull-up Resistor
Micropower Voltage Supervisors
MCP102/103/121/131
120 ms
120 ms
120 ms
No
No
Delay (typ)
Reset
RST, V
V
RST, V
RST, V
V
V
Package Pinout
SS
OUT
OUT
(Pin # 1, 2, 3)
, RST, V
, V
, V
Package Types
Block Diagram
DD
DD
DD
SS
SS
RST 1
V
, V
, V
, V
, V
, V
DD
Band Gap
Reference
SOT23-3/SC-70
DD
SS
SS
SS
DD
DD
2
+
RST
V
See MCP111/112 Data Sheet
(DS21889)
See MCP111/112 Data Sheet
(DS21889)
Comparator
SS
SOT23-3/SC-70
2
1
V
V
Reset
Circuit
Delay
DD
SS
3
Comment
V
SS
Note 1: MCP131 Only
Output
Driver
3
RST
DS21906B-page 1
V
DD
TO-92
R
V
DD
(1)
V
RST
SS

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MCP121T-195I/TT Summary of contents

Page 1

... TABLE 1: DEVICE FEATURES Output Device Type Pull-up Resistor MCP102 Push-pull No MCP103 Push-pull No MCP121 Open-drain External MCP131 Open-drain Internal (~ 120 ms MCP111 Open-drain External MCP112 Push-Pull No © 2005 Microchip Technology Inc. Package Types SOT23-3/SC-70 RST RST Block Diagram Comparator + – Band Gap Reference ...

Page 2

... RPU µA V > V and Reset Power-up DD TRIP Timer (t ) Inactive RPU µA V < V and Reset Power-up DD TRIP Timer (t ) Inactive (Note 3) RPU µA Reset Power-up Timer (t ) Active RPU (Note 4) ). The total time that the OUT pin should be OUT © 2005 Microchip Technology Inc. ...

Page 3

... OUT limited and it is recommended that the device operational temperature be maintained between 0°C to 70°C (+25°C preferred). For additional information, please refer to Figure 2-33. 6: This parameter is established by characterization and not 100% tested. © 2005 Microchip Technology Inc. MCP102/103/121/131 DD Sym Min Typ ...

Page 4

... TRIP(MAX) 250 mV down to V – TRIP(MIN) 250 mV, per Figure 1- (Note 1) L µs For RST 10% to 90% of final value per Figure 1- (Note 1) = 100 k (MCP121 only), PU Units Conditions ºC MCP1XX-195 ºC Except MCP1XX-195 ºC ºC ºC/W ºC/W ºC/W © 2005 Microchip Technology Inc. ...

Page 5

... Temperature (°C) FIGURE 2-3: I vs. Temperature DD (Reset Power-up Timer Inactive) (MCP121-450). © 2005 Microchip Technology Inc. MCP102/103/121/131 = 1V to 5.5V 5.5V 14 5. 2.8V 6 2.1V 1. FIGURE 2-4: (Reset Power-up Timer Active) (MCP102-195) ...

Page 6

... -40°C, 0°C +25°C +70°C +85°C +125°C inactive 2.0 3.0 4.0 5.0 6 -40°C 0°C +25°C +70°C Device in Reset +85°C t inactive +125°C RPU 2.0 3.0 4.0 5.0 6 © 2005 Microchip Technology Inc. ...

Page 7

... HYS 4.450 4.400 V , decreasing V TRIP DD 4.350 MCP121-450 4.300 -60 - 100 Temperature (°C) FIGURE 2-15: V vs. Temperature vs. TRIP Hysteresis (MCP121-450). © 2005 Microchip Technology Inc. MCP102/103/121/131 = 1V to 5.5V 0.120 MCP102-195 0.050 0.100 0.045 0.040 0.080 0.035 0.060 0.030 0.025 0.040 0.020 0.020 0.015 ...

Page 8

... FIGURE 2-22: (MCP102-195 @ 120 = 120 = 100 k (MCP121 only; PU MCP102-195 V = 2.1V DD 0°C -40°C +125°C +85°C +70°C +25°C 0.25 0.50 0.75 1.00 I (mA vs 2.1V). DD © 2005 Microchip Technology Inc. ...

Page 9

... V increasing from 5. 5.5V 35 -40 - Temperature (°C) FIGURE 2-25: t vs. Temperature RPD (MCP121-450). © 2005 Microchip Technology Inc. MCP102/103/121/131 = 1V to 5.5V 160 MCP102-195 150 V - 0.25V 0V - 2.1V TRIP(min) 140 2.8V 130 120 110 100 -40 85 110 FIGURE 2-26: (MCP102-195). 160 ...

Page 10

... MCP131-315 100f 1.00E- 110 FIGURE 2-33: Current vs. Voltage Applied to V (MCP121-195). increasing from: 85 110 = 100 k (MCP121 only; PU 0.01 0 (Min TRIP DD Transient Duration vs +125°C +25°C - 40° Pull-Up Voltage (V) Open-Drain Leakage Pin OUT © 2005 Microchip Technology Inc. ...

Page 11

... The descriptions of the pins are listed in Table 3-1. TABLE 3-1: PIN FUNCTION TABLE Pin No. MCP102 Symbol MCP121 MCP103 MCP131 1 1 RST Output State Positive power supply Ground reference SS © 2005 Microchip Technology Inc. MCP102/103/121/131 Function Falling: > TRIP < TRIP Rising: > TRIP HYS < TRIP HYS DS21906B-page 11 ...

Page 12

... TRIP voltage is rising, the RST Once DD TRIP HYS ) before the RST pin is driven RPD RST PIN STATES < > Ouput Driver TRIP TRIP HYS L H Push-pull L H Push-pull (1) ( Open-drain (2) ( Open-drain V TRIPAC TRIPAC t RPU t RPU t RPD . HYS © 2005 Microchip Technology Inc. ...

Page 13

... TRANS 0V Time (µs) FIGURE 4-3: Example of Typical Transient Duration Waveform. © 2005 Microchip Technology Inc. MCP102/103/121/131 4.3 Reset Power-up Timer (t Figure 4-4 illustrates the device current states. While the system is powering down, the device has a low current. This current is dependent on the device V and trip point ...

Page 14

... It is recommended that the current into the RST pin be current limited resistor 0.1µ PICmicro MCP121 MCLR RST (Reset Input (Active-low FIGURE 4-5: Typical Application Circuit ® for PICmicro Microcontroller with the ICSP™ feature. DS21906B-page 14 ® ® MCU V SS © 2005 Microchip Technology Inc. ...

Page 15

... 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. © 2005 Microchip Technology Inc. MCP102/103/121/131 Example: MCP102 195I ...

Page 16

... MCP1xxT-240E/LB BHNN FHNN MCP1xxT-270E/LB BJNN FJNN MCP1xxT-300E/LB BKNN FKNN MCP1xxT-315E/LB BLNN FLNN MCP1xxT-450E/LB BMNN FMNN MCP1xxT-475E/LB BPNN FPNN © 2005 Microchip Technology Inc. DGN CGN DHN CHN DJN CJN DKN CKN DLN CLN DMN CMN DPN CPN DGNN CGNN DHNN CHNN ...

Page 17

... Mold Draft Angle Top Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: TO-236 Drawing No. C04-104 © 2005 Microchip Technology Inc. MCP102/103/121/131 ...

Page 18

... A2 A1 MILLIMETERS* MIN MAX 3 0.65 BSC. 1.30 BSC. 0.80 1.10 0.80 1.00 0.00 .010 1.80 2.40 1.15 1.35 1.80 2.25 0.10 0.41 0.08 0.25 0.15 0.40 8° 12° 8° 12° © 2005 Microchip Technology Inc. ...

Page 19

... Mold Draft Angle Top Mold Draft Angle Bottom *Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: TO-92 Drawing No. C04-101 © 2005 Microchip Technology Inc. MCP102/103/121/131 Units INCHES* ...

Page 20

... SOT-23/SC70 DEVICE TAPE AND REEL SPECIFICATIONS Device Marking PIN 1 Standard Reel Component Orientation DS21906B-page Carrier Cavity Dimensions Dimensions 3.15 2.77 1. 2.4 2.4 1.19 User Direction of Feed P W Output Reel Quantity Diameter in Units mm 3000 180 3000 180 W © 2005 Microchip Technology Inc. ...

Page 21

... FIGURE 5-3: TO-92 DEVICE TAPE AND REEL SPECIFICATIONS Device Marking MARK MARK FACE FACE Seal Tape Back Tape Note: Bent leads are for Tape and Reel only. © 2005 Microchip Technology Inc. MCP102/103/121/131 User Direction of Feed P MARK FACE W DS21906B-page 21 ...

Page 22

... MCP102/103/121/131 NOTES: DS21906B-page 22 © 2005 Microchip Technology Inc. ...

Page 23

... Added Figure 2-33. 4. Updated SC-70 package markings and added Pb-free marking information to Section 5.0 “Packaging information”. 5. Added Appendix A: “Revision History”. Revision A (August 2004) • Original Release of this Document. © 2005 Microchip Technology Inc. MCP102/103/121/131 Applications (for ICSP DS21906B-page 23 ...

Page 24

... MCP102/103/121/131 NOTES: DS21906B-page 24 © 2005 Microchip Technology Inc. ...

Page 25

... Reel) MCP103: MicroPower Voltage Supervisor, push-pull MCP103T: MicroPower Voltage Supervisor, push-pull (Tape and Reel) MCP121 MicroPower Voltage Supervisor, open-drain MCP121T: MicroPower Voltage Supervisor, open-drain (Tape and Reel) MCP131 MicroPower Voltage Supervisor, open-drain MCP131T: MicroPower Voltage Supervisor, open-drain (Tape and Reel) Monitoring Options: 195 = 1 ...

Page 26

... MCP102/103/121/131 NOTES: DS21906B-page 26 © 2005 Microchip Technology Inc. ...

Page 27

... PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel, Total Endurance and WiperLock 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 28

... Fax: 65-6334-8850 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Taiwan - Hsinchu Tel: 886-3-572-9526 Fax: 886-3-572-6459 © 2005 Microchip Technology Inc. EUROPE Austria - Weis Tel: 43-7242-2244-399 Fax: 43-7242-2244-393 Denmark - Ballerup Tel: 45-4450-2828 Fax: 45-4485-2829 France - Massy Tel: 33-1-69-53-63-20 ...

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