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零件编号 | M61040 | ||
描述 | Smart battery protection and monitoring IC | ||
制造商 | Mitsubishi | ||
LOGO | |||
1 Page
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)
5. Measurement circuit
Smart battery protection and monitoring IC
M61040FP
CFOUT PFOUT DFOUT
VCC
14V VIN 1
VIN 2
VIN 3
VIN 4
GND
VIN 10
VIN 11
VIN 12
VREG
VREF
M61040FP
RESET
DI
CK
CS
ANALOG OUT
TEST0
TEST1 CIN
IDI
ICK
ICS
Circuit 1
5V
AAA
CFOUT
VCC
VIN 1
VIN 2
VIN 3
VIN 4
GND
VIN 10
VIN 11
TEST0
PFOUT
DFOUT
VIN 12
VREG
VREF
M61040FP
RESET
DI
CK
CS
ANALOG OUT
TEST1 CIN
Circuit 2
1MΩ
V
V
CFOUT PFOUT DFOUT
VIN 12
VCC
V VIN 1
VIN 2
VREG
VREF
4.7uF V
↓
VIN 3
VIN 4
M61040FP
RESET
DI
GND
CK
VIN 10
VIN 11
CS
ANALOG OUT
TEST0
TEST1 CIN
Circuit 3
Figure 4-1
Mitsubishi Electric
(8/25)
Smart battery protection and monitoring IC
M61040FP
7. Digital data format
MSB
Last
DI
CK
D5
6 Bit shift resistor
D4 D3
First
LSB
D2 D1
D0
CS
Address
Decoder
Latch Latch Latch Latch
MPX
MPX
MPX
MPX
Offset Vreg,Vref Multiplexer FET,VR
adjustment control control control
*1 : Charge, discharge current detection
*2 : Battery voltage output
Figure 12 Serial to Parallel Conversion circuit
Latch
MPX
*1
Latch
MPX
*2
8. Data timing Example
LSB
MSB
DI D0 D1 D2 D3 D4 D5
CK
CS
Figure 13. Serial to parallel timing chart
Mitsubishi Electric
(16/25)
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页数 | 25 页 | ||
下载 | [ M61040.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
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