mm1485 Mitsumi Electronics, Corp., mm1485 Datasheet
![no-image](/images/manufacturer_photos/0/4/452/mitsumi_electronics__corp__sml.jpg)
mm1485
Related parts for mm1485
mm1485 Summary of contents
Page 1
... Adaptor (primary side) abnormality detection function 3. Battery temperature detection function Package TSOP-16A Application Lithium-ion battery charge control Absolute Maximum Ratings Item Storage temperature Operating temperature Power supply voltage Allowable loss Lithium-Ion Battery Charge Control MM1485 4.120±30mV 1.5mA typ. (Ta=25°C) Symbol Ratings T -40~+125 STG T -20~+70 OPR V -0 ...
Page 2
... Pin Assignment TSOP-16A Lithium-Ion Battery Charge Control MM1485 Charge Current Limit OFF ON Controlled by the IC (current limit 2:25mV) ON Controlled by the adaptor (current limit 1:450mV) ON Controlled by the adaptor (current limit 1:450mV) SW1 1 SW2 ...
Page 3
... Output Overvoltage detection output pin. V overvoltage input: Output Tr OFF CC V recommended operating voltage: Output Overvoltage detection delay time setting pin. Delay time can be set by connecting an external capacitor. Lithium-Ion Battery Charge Control MM1485 Function -CS. CC -CS. CC -CS and CC ...
Page 4
... MITSUMI Pin Description The following valaeis typical Pin No. Pin name Internal equivalent circuit diagram SW1 1 SW2 2 VREF 3 ADJ 5 CDO 6 TOUT 7 TDET 8 Lithium-Ion Battery Charge Control MM1485 Pin No. Pin name Internal equivalent circuit diagram BAT 9 CFB 10 CNT VOUT2 14 VOUT1 15 16 VDET-TD ...
Page 5
... Current limits 1 and 2 are prescribed by the amount of current detection resistor voltage drop. * Safety can not be guaranteed if this IC is damaged and control no longer is possible. Please protect with * something other than this IC. Lithium-Ion Battery Charge Control MM1485 (Except where otherwise indicated Ta=25°C, V Symbol Conditions I ...
Page 6
... MITSUMI Measuring Circuit Lithium-Ion Battery Charge Control MM1485 ...
Page 7
... T pin output voltage OUT T input bias current DET Lithium-Ion Battery Charge Control MM1485 (Except where otherwise indicated Ta = 25°C, V 0.5A 0V 4.2V, S6 11, 14, 15: A) Measurement Procedure Measure A13 current value 1.2V. CC1 Measure A13 current value I ...
Page 8
... MITSUMI Timing Chart Application Circuits Lithium-Ion Battery Charge Control MM1485 Start 4.120V BAT pin voltage Charging current OA Pre- Full charge charge H SW1 L H SW2 L ...