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M61047FP Datasheet

Battery Protection Analog Front End (AFE) IC

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M61047FP pdf
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M61047FP
Battery Protection Analog Front End (AFE) IC
REJ03F0005-0200
Rev.2.00
Mar 04, 2005
Description
The M61047FP is intended to be used as SB: Smart Battery. All functions needed for SB are packed to this M61047FP.
The combination use with microcomputer 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 microcomputer are dedicated in
M61047FP. 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
VCC
VIN12
CFET PCFET DFET
VREG
DFETCNT
CFETCNT
RESET
CS
CK
DI
ANALOG
Series
regulator
Reset circuit
Serial to Parallel
conversion circuit
Multiplexer
circuit
FET control circuit
Battery cell
voltage
detection
circuit
Battery cell
1-4 voltage
analog output
VIN1
VIN2
VIN3
VIN4
GND
Rev.2.00 Mar 04, 2005 page 1 of 23


Renesas Electronics Components Datasheet

M61047FP Datasheet

Battery Protection Analog Front End (AFE) IC

No Preview Available !

M61047FP pdf
M61047FP
Pin Arrangement
CK 1
DI 2
ANALOG 3
CFET 4
DFET 5
PCFET 6
GND 7
VREG 8
VCC 9
DFETCNT 10
(Top view)
20 CS
19 CFETCNT
18 VIN1
17 VIN2
16 VIN3
15 VIN4
14 RESET
13 VIN12
12 N.C.
11 N.C.
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 microcomputer
Monitoring charger is connected or not
Battery 1 + voltage input
Battery 1 – voltage and Battery 2 + voltage input
Battery 2 – voltage and Battery 3 + voltage input
Battery 3 – voltage and Battery 4 + voltage input
Ground and Battery 4 - voltage input
Discharge FET-Drive Output. The Driver is turned off by Microcomputer
Charge FET-Drive Output. The Driver is turned off by Microcomputer
Pre-charge FET-Drive Output. The Driver is turned off by Microcomputer
Reset signal output to RESET of Microcomputer
Various Analog signal outputs to AD-input of Microcomputer
Input of CFET and PCFET control signal from Microcomputer
Input of DFET control signal from Microcomputer
During low signal input to this CS, data input to DI is enabled
Input of shift clock from Microcomputer. DI's input data is latched by low-to-high edge of this CK
Input of 6-bit length serial data from Microcomputer
Rev.2.00 Mar 04, 2005 page 2 of 23


Part Number M61047FP
Description Battery Protection Analog Front End (AFE) IC
Maker Renesas Technology
Total Page 24 Pages
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M61047FP pdf
M61047FP Datasheet PDF
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