mm1438 Mitsumi Electronics, Corp., mm1438 Datasheet
mm1438
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mm1438 Summary of contents
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... Low voltage detection 6. Leakage current between CEL and CS Package VSOP-8B Application For lithium-ion battery charge control Pin Assignment VSOP - 8B Lithium-Ion Battery Charge Control (1 cell) MM1438 D: Ta=0~40°C Output Output voltage voltage (V) temperature conditions 4.125±0.030 4.225±0.030 ±25mV/cell ±30mV/cell 250µ ...
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... Detects battery voltage and controls rated voltage to the prescribed voltage value. Current detection pin CS Input Detects current by drop in external resistor voltage and controls rated current. 8 Current value can be set at 0.1V/R1 typ. Lithium-Ion Battery Charge Control (1 cell) MM1438 I CHG = 0.2 Ω can be set set at 0.5A, R CHQ 1 ...
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... LV SINK I EXT V For no load EXT Ratings Unit -40~+125 °C -20~+70 °C -0.3~+18 V -0.3~+13 V -0.3~V +0 300 mW Ratings Unit -20~+70 °C 2.5~+17 V =5V, SW3 : A, SW6 : A, SW7 : A) Models listed MM1438A CC Min. Typ. Max. Unit 250 2 4.100 4.125 4.150 4.095 4.125 4.155 90 100 3.0 5.0 0.01 20 -0 2.0 2.15 20 -0 0.3 ...
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... MITSUMI Measuring Circuit Lithium-Ion Battery Charge Control (1 cell) MM1438 ...
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... Low voltage detection output leak current Low voltage detection output saturation voltage EXT pin inflow current EXT pin output voltage Lithium-Ion Battery Charge Control (1 cell) MM1438 (Except where noted otherwise, Ta=25°C, V Measurement Procedures 0V. Next, measure A5 current value Icc1 when V3 is changed CC from V 0V ...
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... MITSUMI MITSUMI Timing Chart V CC SW1 CEL CS LV CEL CS LV Application Circuit Lithium-Ion Battery Charge Control (1 cell) MM1438 Battery connection and SW1 OFF 0 OFF ON Rated voltage mode 0 Charging OFF Charging ON 100mV 0 Rated current mode Charging OFF Normal charging ...
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... EXT pin voltage vs EXT pin inflow current EXT pin inflow current (mA) Lithium-Ion Battery Charge Control (1 cell) MM1438 Output voltage vs Ambient temperature (Ta=25° pin voltage vs Ambient temperature (Ta=25° pin voltage vs Output voltage (Ta=25°C) ...