Smart battery protection and monitoring IC
M61040FP
DESCRIPTION
The M61040FP is intended to be used as SB: Smart Batter...
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...