ML5238 Datasheet | LAPIS

DESCRIPTION The ML5238 is analog front end IC for 16 series Lithium Ion secondary battery pack protection system. The ML5238 provides the function of cell voltage monitoring, charge/discharge current monitoring function, and it can detect over-charge/over-discharge of each battery cell charge/discharge over-current. The ML5238 has short current detecting function which can turn off the external charge/discharge MOS-FET without external MCU. - FEATURES - 16 cell highly accurate voltage monitoring function: output cell voltage by half from VMON pin - built-in cell balancing switches for each cell - charge/discharge current monitoring function : Select voltage gain of ISP-ISM and output from IMON pin. Voltage gain selection: x10 / x50 - short current detecting function: detecting threshold voltage is selectable, ISP-ISM voltage = 0.1V/0.2V/0.3V/0.4V (typ), the detecting delay time is set by external capacitor - external charge/discharge FET control: NMOS-FET driver built-in - MCU interface: SPI serial interface (mode 0) - 3.3V regulator for external MCU built-in: output current is 10m A (max) - Reference voltage regulator for external ADC: 3.3V(typ), 3.28V(min),3.34V(max) @Ta=-10°C to +60°C - Small power consumption Normal state Power save state Power down state : 50A (typ), 100A (max) : 25A (typ), 50A (max） : 0.1A (typ), 1A (max) - power supply voltage : +7V to +80V - operating temperature : -40°C to +85°C - package : 44 pin plastic QFP - APPLICATION - Power tools and Garden tools - E-Bike and Electric assisted bicycle - Uninterruptible Power Supplies (UPS) - Energy Storage Systems (ESS) - PART NUMBER ML5238GA 1/30 - BLOCK DIAGRAM VDD VDDP VREF VREG VDD_SW V16 V15 V14 V13 V12 V11 V10 V9 V8 V7 V6 V5 V4 V3 V2 V1 V0 Cell Selection & Cell Balance Switches Voltage Regulator Cell Voltage Monitor Reference...