MM1026 MITSUBISHI | Alldatasheet

Document overview

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Technical content

Features

  • Power supply switching circuit (switching between main power supply and battery)
  • CS control for S-RAM (normal mode : S-RAM can be accessed; back-up mode: S-RAM can not be accessed low current consumption mode)
  • Reset output MM1245
  • Power supply switching circuit
  • CS control for S-RAM
  • CS control signal delay, power supply line chattering removal approx. 1S max.
  • Supply current from main power supply can be increased by external power transistor MM1080
  • Power supply switching circuit
  • CS control for S-RAM
  • Low current consumption 60µA typ. MM1134
  • Power supply switching circuit
  • CS control for S-RAM
  • Gate circuit with CS signal Characteristics 1. Battery back-up 1. Low IC current consumption (loss current) 0.3µA typ. 2. Drop voltage inside IC (input/output voltage difference) I O=100µA 0.3V typ. 3. Reverse current (reverse leak current) 0.1µA max. 2. Normal operation 1. Drop voltage inside IC (input/output voltage difference) I O=50µA 0.2V typ. 2. Output voltage VCC=5V I O=50mA 4.8V typ. 3. Battery-VCC switching voltage 3.3V typ. 4. Detection voltage (CS, CS , reset output) A : 3.5V typ. B : 4.2V typ. C : 4.5V typ.

MITSUMI System Reset (with battery back-up) MM1026, 1245, 1080, 1134 Package DIP-8B (MM D) SOP-8C (MM F) * contains detection voltage rank.

Applications

  1. Memory cards (S-RAM cards) 2. PCs, word processors 3. Fax machines, photocopiers, other office equipment 4. Sequence controllers, other FA equipment 5. Video games and other equipment with S-RAMs Pin no. Pin name MM1026 MM1245 MM1080 MM1134

1 GND GND GND GND

2 RESET TC NC RESET

3 CS CS CS CS

4 VBATT VBATT VBATT VBATT

5 CS CS NC CS

6 VOUT VOUT VOUT VOUT

7 NC Tr.B NC Y

8 VCC VCC VCC VCC

DIP-8P(C)/SOP-8P(C)/SOP-8P(C) Taping Block Diagram MM1026

MITSUMI System Reset (with battery back-up) MM1026, 1245, 1080, 1134 MM1080 MM1134 MM1245

MITSUMI System Reset (with battery back-up) MM1026, 1245, 1080, 1134 Equivalent Circuit Diagram MM1026 MM1245

MITSUMI System Reset (with battery back-up) MM1026, 1245, 1080, 1134 Absolute Maximum Ratings (Ta=25° C) Item Symbol Rating Units Storage temperature TSTG -40~+125 ° C Operating temperature TOPR -20~+75 ° C Power supply voltage VCC max. 7 V Operating voltage VCCOP 7V Allowable loss Pd 300 mW MM1245 Output current MM1026 IO1 80 mA MM1134 MM1080 50 mA Output current IO2 200 µA Note : IO1 expresses VCC output current value, and IO2 expresses VBATT output current value. MM1080 MM1134

MITSUMI System Reset (with battery back-up) MM1026, 1245, 1080, 1134 Electrical Characteristics (Except where noted otherwise, Ta=25°C, V CC=VRS=5V, RRS=10kΩ ) Item Symbol Measurement conditions Min. Typ. Max. Units MM1026 2.0 mA Consumption MM1245 ICC VCC=5V, VBATT=3V, IO1=0mA 0.6 1.0 1.4 mA current MM1080 60 120 µA MM1134 1.4 2.2 mA I/O voltage difference 1 VSAT1V CC=5V, VBATT=3V, IO1=1mA 0.03 0.05 V Output voltage 1 VO1V CC=5V, VBATT=3V, IO1=1mA 4.95 4.97 V I/O voltage difference 2 MM1245 VSAT2V CC=5V, VBATT=3V, IO1=30mA 0.15 0.30 V MM1026 Output voltage 2 MM1134 VO2 VCC=5V, VBATT=3V, IO1=15mA 4.75 4.90 V MM1080 VCC=5V, VBATT=3V, IO1=30mA 4.5 4.7 V I/O voltage difference 3 MM1245 VSAT3V CC=5V, VBATT=3V, IO1=80mA 0.30 0.50 Output voltage 3 Except MM1245 VO3V CC=5V, VBATT=3V, IO1=50mA 4.7 4.8 V A type 3.35 3.50 3.65 V Detection voltage B type VS VCC=H L 4.05 4.20 4.35 V C type 4.30 4.50 4.70 V Hysteresis voltage VS VCC=L H 100 mV Maximum base driving current MM1245 IBUF VCC=5V, VBUF=4.5V 14 20 26 mA Reset output voltage L MM1026 VRSL VCC=3V 0.2 0.4 V Reset leakage current H MM1134 IRSH VCC=5V, VRS=7.0V ±0.01 ±0.1 µA Reset operation limit voltage VOPL VRSL <= 0.4V, VCC=H L 0.8 1.2 V CS output voltage L VCSL VCC=3.7V, VBATT=3V, ICS=1µA 0.1 V CS output voltage H VCSH VCC=5V, VBATT=3V, ICS=-1µA 4.90 V CS output voltage L VCSL VCC=5V, VBATT=3V, ICS=1µA 0.1 V CS output voltage H VCSH VCC=3.7V, VBATT=3V, ICS=-1µA VO-0.1 V Detection voltage temperature characteristic VS/ T ±0.05 %/ ° C ON delay time MM1245 TdON CTC=OPEN 50 µS OFF delay time TdOFF CTC=OPEN 5 µS TC pin charge current MM1245 ITC VCC=5V, VBATT=3V, VTC=0V 0.60 0.80 1.10 µA CS source current ICSSOU VCC=5V, VBATT=3V, VCS=4.5V 25 50 80 µA Power supply switching voltage VB VCC=H L 3.15 3.30 3.45 V Hysteresis voltage VB VCC=L H 100 mV Switching voltage temperature characteristic VB/ T ±0.05 %/ ° C Loss current IBL VCC=0V, VBATT=3V, IO2=0µA 0.1 µA I/O voltage difference 2 Vsat2 V CC=0V, VBATT=3V, IO2=1µA 0.2 0.3 V Output voltage 4 V04V CC=0V, VBATT=3V, IO2=1µA 2.7 2.8 V Output voltage 5 V05V CC=0V, VBATT=3V, IO2=100µA 2.6 2.7 V Reverse current IOREV VCC=5V, VBATT=0V 0.1 µA Y pin LO H level current MM1134 IYLO VCC=5V, VBATT=3V, VY=0V 150 400 µA Reference voltage (typical) VREF 1.25 V MM1080 (CS only) MM1026 MM1245 MM1134 Note : Detection voltage ranks A, B MM1026 B MM1134, MM1080 B, C MM1245

MITSUMI System Reset (with battery back-up) MM1026, 1245, 1080, 1134 Timing Chart VCC RESET CS VOUT CS VS VB VOPL VE VS VRSL VCSH VCSL VCSH VO1,O2,O3 VRSH VCSL VO4,O5 VCC TC CS VOUT CS VE VS VS VB VOPL VTH VCSLVCSL VO1,O2,O3 VCSL VO4,O5 VCSL Set inside IC Delay VCC VS VB BATTERY CS VOUT VS VCSL VCSL VO1,O2 VO3,O4 VE 0V0V 2.8V 4.8V VCC Y CS VOUT CS VE VS VS VB VOPL VCSLVCSL *VY VO1,O2,O3 VO4,O5 VCSL VRSL VCSL RESET MM1026 MM1245 MM1080 MM1134 Characteristics (MM1026, MM1134 series) VOUT (V) 3.000 0.100/div 2.000 IOUT (mA) 0 1.000 0.100/div VOUT (V) (V) 5.000 .0500/div 4.500 IOUT (mA) .0000 -100.010.00/div VOUT-IOUT (VCC=5.0V) V OUT-IOUT (VBAT=3.0V) * Use Y pin input voltage at less than 5V when VCC <= Vs.

MITSUMI System Reset (with battery back-up) MM1026, 1245, 1080, 1134 IBAT (nA) 40.00 5.000/div -10.00 VCC (V) 0 10.00 1.000/div VCC-IBAT ICC (mA) 5.000 .5000/div .0000 .0000 VCC (V) 10.001.000/div VCC-ICC 2.0 1.0 0.0 -50 0 50 100 Current consumption (mA) Ambient temperature (°C) Current consumption-Temperature characteristics IOL=50mA IOL=10mA 0.3 0.2 0.1 -50 0 50 100 Output voltage 1, 2 (V) Ambient temperature (°C) Output voltage 1, 2-Temperature characteristics IOL=100µA IOL=1µA -50 0 50 100 0.2 0.1 0.5 0.4 0.3 Output voltage 3, 4 (V) Ambient temperature (°C) Output voltage 3, 4-Temperature 10nA 100nA 1µA -80-50 0 50 100 Reverse current Ambient temperature (°C) Reverse current-Temperature 10nA 100nA 1µA -80-50 0 50 100 Loss current Ambient temperature (°C) Loss current-Temperature

MITSUMI System Reset (with battery back-up) MM1026, 1245, 1080, 1134 5.000 0.5000 0.0000 .0000 /div VOUT (V) 100.0IOUT 10.00/div (mA) Current consumption-Temperature (Vcc=5V) 100.0 10.00 .0000 .0000 5.000 /div IIN (µA) VIN .5000/div (V) VIN-IIN 5.000 .0000 .0000 /div VOUT (V) .5000 200.0IOUT 20.00/div ( µA) VOUT-IOUT (VBAT-3.0V) 1.000 .2000 -1.000 .0000 /div IBATT (µA) 5.000VIN .5000/div (V) VIN-IBATT -25 0 25 50 75 TEMP ( °C) (µA) Current consumption-Temperature (VCC=5V) Hysteresis voltage (V) 3.3 3.2 3.1 3.0 -2 50 2 55 07 5 TEMP ( °C) 100 150 (mV) Hysteresis voltage VBAT detection voltage VBAT detection voltage-Temperature Hysteresis voltage (V) 4.5 4.0 3.5 -25 0 25 50 75 TEMP ( °C) 100 150 (mV) Hysteresis voltage CS detection voltage CS detection voltage-Temperature Characteristics (MM1080 series)

MITSUMI System Reset (with battery back-up) MM1026, 1245, 1080, 1134 5.00 4.90 4.80 4.70 4.60 4.50 4.40 4.30 4.20 4.10 4.00 5 2 54 56 58 5 1 0 5 1 2 5 VOUT IOUT (mA) IOUT-VOUT 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 -2 50 2 55 07 5 Temperature (°C) VOUT-CS 47kΩ CS open Current consumption (mA) Current consumption-Temperature 4.4 4.35 4.3 4.25 4.2 4.15 4.1 -25 0 25 50 75 voltage (V) Temperature (°C) CS detection voltage-Temperature OFF delay time 100m 10m 100µ 10µ 1µ0.1µ0.01µ0.001µ100p10p Use 1S max. for CS-CS pin ON delay time. Delay time (S) Capacitance (F) ON delay time CS-CS pin ON/OFF delay time vs. capacitance TC 3.5 3.45 3.4 3.35 3.3 3.25 3.2 -25 0 25 50 75 Voltage (V) Temperature (°C) VBAT detection voltage-Temperature Characteristics (MM1245 series)