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Número de pieza | M61040 | |
Descripción | Smart battery protection and monitoring IC | |
Fabricantes | Mitsubishi | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de M61040 (archivo pdf) en la parte inferior de esta página. Total 25 Páginas | ||
No Preview Available ! 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
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
PIN configuration (Top view)
VCC
1
CFOUT 2
PFOUT 3
DFOUT 4
VIN_1 5
VIN_2
VIN_3
6
7
VIN_4 8
VIN_12 9
20 Vreg
19 Vref
18 Reset
17 DI
16 CK
15 CS
14 Analog_out
13 CIN
12 VIN_11
this will help easy design of power circuit design of SB.
GND 10
11 VIN_10
FEATURE
l Built-in high gain op-amps for monitoring charge/discharge current
20P-TSSOP
l Built-in over current detection circuit for FET protection
l All FETs are controlled by microcomputer
l Various powers saving function to reduce total power dissipation
l High Input Voltage Device(Absolute Maximum Rating:33V)
APPLICATION
l Smart Battery System
Block diagram
VCC
Vreg
Vref
Reset
CK
DI
CS
VIN_12
CFOUT PFOUT DFOUT
CIN
Series
Regulator
Regulator
ON/OFF and
Reset circuit
Over current
detection
circuit
Delay circuit
Serial to
Parallel
conversion
circuit
Battery cell
voltage
detection
circuit
VIN_1
VIN_2
VIN_3
Analog
_OUT
Multi- plexer
circuit
Gain selector
Offset
control
Charge/Discharge current detection circuit
Battery cell 1-4
voltage analog
output
VIN_4
GND
VIN_11 VIN_10
Mitsubishi Electric
(1/25)
1 page Smart battery protection and monitoring IC
M61040FP
VIN12
VCC CFOUT
PFOUT
DFOUT
GND level
in discharging
Vreg
Vref
RESET
CK
DI
CS
Series
Regulator
Regulator
ON/OFF Control
Reset Circuit
Serial to Parallel
conversion
circuit
Control signal
from I/F circuit
VIN1
Figure1. Function after detecting over-discharge
Resume from Power Down Mode
After entering Power Down mode, the series regulator will begin operation when charger is
connected(VIN_12 pin is high). The RESET will output low to high signal when Vreg is over reset level
voltage. Microcomputer will begin operation and send command to resume M61040 from Power Down
mode.
7) Conditioning Circuit
M61040 have a discharge circuit of each cells. It is available for drop of cell voltage for safety purpose.
And to shorten the difference voltage among the cells . It can extend the battery pack life.
Mitsubishi Electric
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5 Page Smart battery protection and monitoring IC
M61040FP
CFOUT PFOUT DFOUT
VCC
VIN 12
VREG
V1 VIN 1
VREF
4.7uF
V2 VIN 2
RESET
V3
VIN 3
M61040FP
DI
V4 VIN 4
GND
CK
Data Input
0.5V↔ 3.5V
VIN 10
VIN 11
CS
ANALOG OUT
Isink
A
TEST1
TEST2 CIN
Isource
Circuit 10
Figure 4-4
Mitsubishi Electric
(11/25)
11 Page |
Páginas | Total 25 Páginas | |
PDF Descargar | [ Datasheet M61040.PDF ] |
Número de pieza | Descripción | Fabricantes |
M61040 | Smart battery protection and monitoring IC | Mitsubishi |
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