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M61048FP Datasheet(PDF) 1 Page - Renesas Technology Corp

Part No. M61048FP
Description  Battery Protection Analog Front End (AFE) IC
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Maker  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
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M61048FP Datasheet(HTML) 1 Page - Renesas Technology Corp

 
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Rev.1.00 Mar 04, 2005 page 1 of 23
M61048FP
Battery Protection Analog Front End (AFE) IC
REJ03F0129-0100
Rev.1.00
Mar 04, 2005
Description
The M61048FP is intended to be used as SB: Smart Battery. All functions needed for SB are packed to this M61048FP.
The combination use with microcomputer such as M37512 will give various functions such as a detection of SB
Remaining Capacity. The reset circuit and the linear regulator for Vcc/Vref of microcomputer are dedicated in
M61048FP. So this will help easy design of power circuit design of SB.
Features
• All FETs are controlled by microcomputer
• Built-in low dropout series regulator for microcomputer
• 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 microcomputer
• Various powers saving function to reduce total power dissipation
• 3-wire serial data transfer system for communication from microcomputer
• High Input Voltage Device (Absolute Maximum Rating: 33 V)
• CMOS monolithic IC
Application
• Smart Battery System
Block Diagram
Multiplexer
circuit
Reset circuit
Series
regulator
Serial to Parallel
conversion circuit
Battery cell
1-4 voltage
analog output
Battery cell
voltage
detection
circuit
FET control circuit
VCC
VIN12
CFET
PCFET
VREG
VIN1
DFETCNT
CFETCNT
DFET
VIN2
VIN3
VIN4
GND
RESET
CS
CK
DI
ANALOG


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