M61040

Smart battery protection and monitoring IC M61040FP DESCRIPTION The M61040FP is intended to be used as SB: Smart Battery. All functions needed for SB are packed to this M61040FP. The combination use with Microcomputer such as M37515 will give various functions such as a detection or calculation of SB Remaining Capacity. Over Current detection circuit dedicated in M61040FP will give safety DFOUT VCC CFOUT PFOUT PIN configuration (Top view) 1 2 3 20 19 18 Vreg Vref Reset DI CK CS Analog_out CIN VIN_11 VIN_10 M61040FP 4 5 6 7 8 9 10 FET on/off control independent from microcomputer control. The amp gain of charge/discharge current detection circuit is controlled by microcomputer, therefore the accuracy of SB’ s Remaining Capacity Detection becomes better than before. The reset circuit and The linear regulator for Vcc / Vref of microcomputer are dedicated in M61040FP. So this will help easy design of power circuit design of SB. 17 16 15 14 13 12 11 VIN_1 VIN_2 VIN_3 VIN_4 VIN_12 GND FEATURE l l l l l Built-in high gain op-amps for monitoring charge/discharge current Built-in over current detection circuit for FET protection 20P-TSSOP All FETs are controlled by microcomputer Various powers saving function to reduce total power dissipation High Input Voltage Device(Absolute Maximum Rating:33V) APPLICATION l Smart Battery System Block diagram VIN_12 VCC Vreg Vref Series Regulator Regulator ON/OFF and Reset Reset circuit VIN_1 CK DI CS Serial to Parallel conversion circui...