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Welcome to Willow Technologies / Rohm / Battery Monitoring ICs - li-ion Stand Alone

Battery Monitoring ICs - li-ion Stand Alone

Automotive-Relays The stand-alone type battery monitoring LSI protects the battery pack by itself without an external microcontroller.

Many functions for various applications are available including secondary protection, number of cells, various kinds of detection (overvoltage, undervoltage, charge / discharge overcurrent, high / low temperature, short-circuit current, open-wire) and FET gate-driver circuit built-in. There are some additional types that can measure each cell voltage and current by combined microcontroller.
Part Number Description Status Supply
Voltage (V)		 Over Voltage
Detection Accuracy
(Typ.) [mV]		 Charge / Discharge DControl FET Drive Current Consumption Operating (Typ.) [µA] Current Consumption Power Down (Typ.) [µA] Open Wire
Detection		 Temp.
Detection		 Op
Temp
°C
ML5203

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ML5203

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  		7-cells, cell voltage / current protection, cell voltage / current monitoring Established 5 to 42 ±25 NMOS 30 0.1 - - -40 to +85
ML5206

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ML5206

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  		5-cells, 2nd protection with Autonomous Cell Balancing New 5 to 25 ±25 - 1 - Yes - -20 to +85
ML5232

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ML5232

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  		14-cells, 2nd protection Established 7 to 80 ±20 - 2.5 - - - -40 to +105
ML5233

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ML5233

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  		10-cells, cell voltage / current / temperature protection, cascade connection Established 5 to 60 ±15 NMOS 25 0.1 - Yes -40 to +85
ML5241

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ML5241

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  		5-cells, 2nd protection Established 5 to 25 ±25 - 1 0.1 Yes - -20 to +85
ML5243

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ML5243

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  		5-cells, cell voltage / current / temperature protection Established 5 to 25 ±25 NMOS 6.5 0.1 Yes Yes -40 to +85
ML5245

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ML5245

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  		13-cells, cell voltage / current / temperature protection, cell voltage monitoring Established 7 to 80 ±15 NMOS 25 0.1 - Yes -40 to +85

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