mm1433 Mitsumi Electronics, Corp., mm1433 Datasheet
mm1433
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mm1433 Summary of contents
Page 1
... Battery temperature detection function 7. Adaptor (primary side) abnormality detection function 8. LED driver (R, G pins) 9. Available for cells Package TSOP-24A Applications For lithium-ion battery charge control Lithium-Ion Battery Charge Control ( cells) MM1433 D: Ta=0~40°C Output Output voltage voltage (V) temperature voltage (mV) ...
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... Applicable circuits shown are typical examples provided for reference purposes. Mitsumi cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same. Lithium-Ion Battery Charge Control ( cells) MM1433 1 CHGSW ...
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... Pin voltage is set at 120mV typ. Pre-charge current can be changed by adjusting ADJ3 Input pin voltage with an external resistor, etc. 10 Pre-charge current control is done by comparing ADJ3 pin voltage and 12dB voltage drop value between CS and BAT. Lithium-Ion Battery Charge Control ( cells) MM1433 Functions ...
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... OSC OUT and OSC FB) and capacitor (connected between OSC FB and GND). For example, the full charge timer setting is 4H for external resistor of 130kΩ and capacitor of 0.01µF. OSC FB- Input Oscillator inverted input pin 24 Lithium-Ion Battery Charge Control ( cells) MM1433 Functions overvoltage input recommended operating voltage ...
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... 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) MM1433 Equivalent circuit diagram Pin No. Pin name ADJ3 10 ADJ4 11 TDET 12 BAT1 13 BAT2 CFB 16 Equivalent circuit diagram CNT ...
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... CHGSW pin input voltage H CHGSW pin input voltage L RESET pin input current RESET pin input voltage H RESET pin input voltage L Current limit 1 Current limit 2 Full charge detection Low voltage detection voltage Lithium-Ion Battery Charge Control ( cells) MM1433 (Ta=25°C) Symbol T STG T OPR V max. ...
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... IC has identified a battery abnormality. OSC CR Setting Reference Materials (1) OSCR CR-Oscillation Cycle T Examples R 75k C 0.0047µ 0.47ms 0.83ms 0.0082µ 1.03ms 0.01µ 1.48ms 0.015µ 2.16ms 0.022µ Lithium-Ion Battery Charge Control ( cells) MM1433 Symbol Conditions V LVW BAT ...
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... Battery is in overvoltage state, i.e., the battery voltage is higher than overcharge detection voltage (Vov). (Charging is prohibited after overvoltage delay time elapses adapter or battery is not correctly connected. 3) RESET pin and CHGSW pin are 0.6 ~ 1.2V. Lithium-Ion Battery Charge Control ( cells) MM1433 Calculation formula Examples of calculation (for C = 0.01µ 230k 15min ...
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... If, at the start of charging, the battery is already at BAT pin voltage, charging is continued for the value of the full-charge detection delay timer and then stops, and the open collector NPN transistor at pin 21 (LED G) turns ON. Lithium-Ion Battery Charge Control ( cells) MM1433 ), the battery is LV ...
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... LED, which will blink. · Pre-charging timer operation can be verified by Pin 3 (TP1) high/low switching. The TP1 pin signal inverts at the 10th stage of the pre-charge timer binary counter (total 19 stages) and Lithium-Ion Battery Charge Control ( cells) MM1433 ...
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... Set pin 2 (RESET) to the HIGH RESET pin input voltage, then return it to the LOW RESET pin input voltage. 8. Other States · If power is supplied to MM1433 when a battery is not connected, the red LED may immediately start blinking (red LED blinking cycle is higher than the setting value). This is because voltage that is not within the temperature abnormality range detected by Pin 12 (TDET pin) is impressed, and Pins 13 and 14 (BAT 1, 2) oscillate while they are open ...
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... MITSUMI Measuring Circuit Lithium-Ion Battery Charge Control ( cells) MM1433 ...
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... L2 TDET input bias current LED R pin output voltage LED G pin output voltage Lithium-Ion Battery Charge Control ( cells) MM1433 (Except where noted otherwise 25°C, V SW12, 17, 20, 22, 24:A, I15=0mA Timers are not in time up state.) Measurement Procedures V1 = 1.2V. Measure A18 current value I Measure T5 potential V ...
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... LED G OFF Power supply setting error (temperature detection pin open) 5. BAT pin 3V voltage Charging current 0A LED R OFF LED G OFF Lithium-Ion Battery Charge Control ( cells) MM1433 Adapter abnormality BAT pin voltage 3.9V Charging current 0A LED R 0A Full Re- charge charge LED G ...
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... BAT pin voltage 15min. Charging current 0A Charging at about 12% of full charge LED R ON LED G OFF Lithium-Ion Battery Charge Control ( cells) MM1433 Overcurrent detection Overcurrent detection does not function A Lank ON/OFF 0.57Hz Full charge time Battery voltage 2.9V or less BAT pin ...
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... Note 2: Applicable circuits shown are typical examples provided for reference purposes. Mitsumi cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same. Lithium-Ion Battery Charge Control ( cells) MM1433 Re-charge detection ...
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... MITSUMI Flow Chart (Models listed MM1433A) Lithium-Ion Battery Charge Control ( cells) MM1433 ...
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... C=0.0047µ 100 120 140 OSC resistance R (kΩ) Lithium-Ion Battery Charge Control ( cells) MM1433 Current limit 2 vs Ambient temperature 50 75 Re-charge detection voltage vs Ambient temperature 50 75 VLED G, R voltage vs ILED G, R current Ta=25°C 100 BAT pin reverse current vs BAT pin voltage Ta=25° ...