M61047FP Datasheet | Renesas

Description The M61047FP is intended to be used as SB: Smart Battery. All functions needed for SB are packed to this M61047FP. The bination use with microputer such as M37517 will give various functions such as a detection of SB Remaining Capacity. The reset circuit and the linear regulator for Vcc/Vref of microputer are dedicated in M61047FP. So this will help easy design of power circuit design of SB. Features - - - - - - - - - - - All FETs are controlled by microputer Built-in low dropout series regulator for microputer Built-in battery voltage monitor circuit of each battery cell Built-in output selector, which outputs the voltage each selected battery cell Built-in discharge circuit of each battery cell Built-in voltage detection circuit of each battery cell Built-in FET OFF function controlled by microputer Various powers saving function to reduce total power dissipation 3-wire serial data transfer system for munication from microputer High Input Voltage Device (Absolute Maximum Rating: 33 V) CMOS monolithic IC Application - Smart Battery System Block Diagram VCC VIN12 CFET PCFET DFET VREG Series regulator FET control circuit DFETCNT CFETCNT RESET Reset circuit Battery cell voltage detection circuit VIN1 VIN2 VIN3 VIN4 GND Battery cell 1-4 voltage analog output CS CK DI Serial to Parallel conversion circuit ANALOG Multiplexer circuit Rev.2.00 Mar 04, 2005 page 1 of 23 Pin Arrangement CK DI ANALOG CFET DFET PCFET GND VREG VCC DFETCNT 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 CS CFETCNT VIN1 VIN2 VIN3 VIN4 RESET VIN12 N.C. N.C. (Top view) Package: PLSP0020JB-A (20P2F-A) Pin Description Pin No. 9 8 13 18 17 16 15 7 5 4 6 14 3 19 10 20 1 2 Pin Name VCC VREG VIN12 VIN1 VIN2 VIN3 VIN4 GND DFET CFET PCFET RESET ANALOG CFETCNT DFETCNT CS CK DI Function Power source pin. Power from charger or battery Linear-Regulator output for microputer Monitoring charger is connected or not Battery 1 + voltage input Battery 1 - voltage...