MM1433_ MITSUMI [Mitsumi Electronics, Corp.], MM1433_ Datasheet
MM1433_
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MITSUMI MITSUMI Lithium-Ion Battery Charge Control ( cells) Monolithic IC MM1433 Outline This IC is used to control charging of lithium-ion batteries one-chip charge control IC where the protection circuit incorporates constant-current/constant-voltage charge and precharge, ...
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MITSUMI MITSUMI Pin Assignment TSOP-24A Block Diagram Note: For lithium ion battery charging control (1-2 cells) For mobile telephones and other cases in which high frequency ...
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MITSUMI Pin Description Pin No. Pin name I/O Forced charging OFF pin CHGSW Input L: Forced charging circuit ON (OFF for reset Charging stop is forced Logic reset pin 2 RESET Input L: Forced charging circuit ON (start) ...
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MITSUMI Pin No. Pin name I/O Full charge current adjustment pin Pin voltage is set at 0.89mV typ. Full charge current can be changed by adjusting pin voltage with an external resistor, etc. ADJ4 Input Full charge current control is ...
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MITSUMI Pin Description (Models listed MM1433E) Pin No. Pin name Equivalent circuit diagram Pin No. Pin name CHGSW 1 RESET 2 TP1 3 TP2 4 VREF 5 ADJ1 8 114.3k ADJ2 9 Lithium-Ion Battery Charge Control ( cells) ...
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MITSUMI Absolute Maximum Ratings Item Storage temperature Operating temperature Power supply voltage Allowable loss Recommended Operating Conditions Item Operating temperature Charging control operating voltage Electrical Characteristics Item Consumption current Reference voltage ADP detection voltage L ADP detection voltage L Hysteresis ...
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MITSUMI Item Low voltage detection voltage Hysteresis voltage width Pre-charge detection voltage Pre-charge detection voltage Hysteresis voltage width Re-charge detection voltage Overvoltage detection voltage Battery temperature detection voltage H Battery temperature detection voltage L1 Battery temperature detection voltage L2 TDET ...
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MITSUMI (2) Timer Times Item Pre-charge timer Full charge timer 1mA charge time Full charge detection delay time Overcurrent detection delay time Overvoltage detection delay time Re-charge detection delay time LED R blinking cycle Note: T: OSC oscillation cycle Operation ...
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MITSUMI 4) Pin 12 (TDET) is open. · At the start of charging, charge waiting results in the following cases (initially prohibited, but charging starts when the voltage returns to the normal range adapter supply voltage is less ...
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MITSUMI 1.5 Recharging Operation · On detection of a full charge and after the end of charging, the battery voltage starts to drop. Recharging starts when the voltage has dropped to the recharge detection voltage (There is no re- charging ...
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MITSUMI outputs on the TP pin. Referring to the data sheet “OSC CR setting reference materials,” when T = 1.77ms, a waveform with cycle of approximately 1.8s is output. · Full charge timer operation can be verified by Pin 4 ...
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MITSUMI Measuring Circuit Lithium-Ion Battery Charge Control ( cells) MM1433 ...
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MITSUMI MITSUMI Measurement Procedures Item Consumption current Reference voltage ADP detection voltage L ADP detection voltage L Hysteresis voltage width ADP detection voltage H ADP detection voltage H Hysteresis voltage width Impedance for ADP Ldetection output BAT pin leak current ...
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MITSUMI MITSUMI Timing Chart Charging performed normally Start V CC 5.5V 0V 4.1V BAT pin 2.9V voltage 2V Charging current 0A 1mA Charging Pre- Full charge charge LED R ON LED G OFF Power supply setting ...
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MITSUMI Battery overdischarge 5. battery BAT pin voltage reset 2V or less voltage 0V 14s Charging current 0A 1mA charging LED R LED G OFF Pre-charge time up 5. Battery voltage 2V or ...
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MITSUMI Battery full charge 5. 4.1V BAT pin voltage 0.9s Charging current 0A LED R ON LED G OFF Application Circuit Note 1: This can be controlled even if a P-MOS FET is used in place of ...
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MITSUMI Flow Chart (Models listed MM1433A) Lithium-Ion Battery Charge Control ( cells) MM1433 ...
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MITSUMI Characteristics Current limit 1 vs Ambient temperature 0.3 0.25 0.2 0.15 0.1 - Ambient temperature (°C) BAT pin output voltage vs Ambient temperature 4.15 4.14 4.13 4.12 4.11 4.1 4.09 4.08 4.07 4.06 4.05 - ...