RENESAS M61047FP

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
Series
regulator
VREG
CFET
PCFET
DFET
FET control circuit
DFETCNT
CFETCNT
RESET
VIN1
CS
CK
VIN2
Reset circuit
Serial to Parallel
conversion circuit
Battery cell
voltage
detection
circuit
DI
ANALOG
VIN3
VIN4
GND
Multiplexer
circuit
Rev.2.00 Mar 04, 2005 page 1 of 23
Battery cell
1-4 voltage
analog output
M61047FP
Pin Arrangement
1
2
3
4
5
6
7
8
9
10
M61047FP
CK
DI
ANALOG
CFET
DFET
PCFET
GND
VREG
VCC
DFETCNT
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.
Pin Name
Function
9
8
VCC
VREG
Power source pin. Power from charger or battery
Linear-Regulator output for microcomputer
13
18
VIN12
VIN1
Monitoring charger is connected or not
Battery 1 + voltage input
17
16
VIN2
VIN3
Battery 1 – voltage and Battery 2 + voltage input
Battery 2 – voltage and Battery 3 + voltage input
15
7
VIN4
GND
Battery 3 – voltage and Battery 4 + voltage input
Ground and Battery 4 - voltage input
5
4
DFET
CFET
Discharge FET-Drive Output. The Driver is turned off by Microcomputer
Charge FET-Drive Output. The Driver is turned off by Microcomputer
6
14
PCFET
RESET
Pre-charge FET-Drive Output. The Driver is turned off by Microcomputer
Reset signal output to RESET of Microcomputer
3
19
ANALOG
CFETCNT
Various Analog signal outputs to AD-input of Microcomputer
Input of CFET and PCFET control signal from Microcomputer
10
20
DFETCNT
CS
Input of DFET control signal from Microcomputer
During low signal input to this CS, data input to DI is enabled
1
2
CK
DI
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
M61047FP
Absolute Maximum Ratings
Ratings
Unit
Absolute maximum rating
Supply voltage
Item
Vabs
Vcc
Symbol
33
30
V
V
Power dissipation
Operating temperature range
PD
Topr1
800
–20 to +85
mW
°C
Storage temperature range
Tstg
–40 to +125
°C
Reference
period
CK
TSDI
THDI
DI
TSCS
THCS
CS
Figure 1 Interface Timing
Rev.2.00 Mar 04, 2005 page 3 of 23
Condition
M61047FP
Electrical Characteristics
(Ta = 25°C, Vcc = 14 V, unless otherwise noted)
Block
Total
Regulator
Item
Interface
Conditioning
circuit
Typ.
Max.
Unit
Circuit
Condition
Vsup
—
—
30
V
1
Supply current 1
Isup
35
75
115
µA
1
Supply current 2
Ips
20
45
70
µA
1
Power save mode
(Battery voltage detection: OFF)
Supply current 3
Ipd
Power down mode
Output voltage
Vreg
Load regulation
Battery
voltage
detection
Min.
Supply voltage
Linear regulation
Reset
Symbol
∆Vline
∆Vload
—
—
0.5
µA
1
3.276
3.3
3.333
V
2
VCC = 14V, Iout = 10mA
4.75
5.0
5.25
V
2
VCC = 14V, Iout = 10mA
—
2
10
mV
2
VREG = 3.3V
VCC = 6.0V to 24V, Iout = 10mA
—
4
100
mV
2
VREG = 5.0V
VCC = 7.5V to 24V, Iout = 10mA
—
3
15
mV
2
VREG = 3.3V
VCC = 6.0V, Iout = 50µA to 10mA
—
5
150
mV
2
VREG = 5.0V
VCC = 7.5V, Iout = 50µA to 50mA
Detection voltage
Vdet–
2.6
2.75
2.9
V
3
VREG = 3.3V
Release voltage
Vdet+
2.9
2.975
3.05
V
3
VREG = 3.3V
Input offset voltage
Voff
31
206
385
mV
4
Voltage gain
Gamp
0.594
0.600
0.606
—
4
Output source current
Isource
75
—
—
µA
5
Output sink current
Isink
150
—
—
µA
5
Detection voltage of
battery cell
Vmo_max
4.7
—
—
V
2, 4
DI input H voltage
VDIH
Vreg–0.5
—
Vreg
V
6
DI input L voltage
VDIL
0
—
0.5
V
6
CS input H voltage
VCSH
Vreg–0.5
—
Vreg
V
6
CS input L voltage
VCSL
0
—
0.5
V
6
CK input H voltage
VCKH
Vreg–0.5
—
Vreg
V
6
CK input L voltage
VCKL
0
—
0.5
V
6
DI set-up time
TSDI
600
—
—
ns
6
DI hold time
THDI
600
—
—
ns
6
CS set-up time
TSCS
600
—
—
ns
6
CS hold time
THCS
600
—
—
ns
6
DFETCNT input H voltage
VDCH
Vreg–0.5
—
Vreg
V
6
DFETCNT input L voltage
VDCL
0
—
0.5
V
6
CFETCNT input H voltage
VCCH
Vreg–0.5
—
Vreg
V
6
CFETCNT input L voltage
VCCL
0
—
0.5
V
6
CFETCNT sink current
ICCH
0.3
1
2
µA
6
VIN1 resistor
RON1
250
500
1000
Ω
7
VIN2 resistor
RON2
250
500
1000
Ω
7
VIN3 resistor
RON3
250
500
1000
Ω
7
VIN4 resistor
RON4
250
500
1000
Ω
7
Rev.2.00 Mar 04, 2005 page 4 of 23
VREG = 3.3V
(Vreg–Voff1)/Gamp
CFETCNT = 3.3V
M61047FP
Measurement Circuit
Measuring Ipd: OFF
Except above: ON
CFET
Ipd, Ips, Isup
A
PCFET
Measuring Ipd: ON
Except above: OFF
DFET
VCC
VIN12
VIN1
VREG
0.47µF
VIN2
VIN3
DI
VIN4
CK
Data input
0.5V↔VREG–0.5V
CS
GND
ANALOG
Measurement circuit 1
CFET
PCFET
DFET
VCC
VIN12
VIN1
VREG
I (VREG)
0.47µF
V
VIN2
VIN3
DI
VIN4
CK
CS
GND
ANALOG
Measurement circuit 2
Rev.2.00 Mar 04, 2005 page 5 of 23
Data input
0.5V↔VREG–0.5V
M61047FP
CFET
PCFET
DFET
VCC
VIN12
VIN1
VREG
V
VIN2
RESET
VIN3
DI
VIN4
Data input
0.5V↔VREG–0.5V
CK
CS
GND
ANALOG
Measurement circuit 3
CFET
PCFET
DFET
VCC
VIN12
VIN1
VREG
V1
0.47µF
VIN2
V2
VIN3
DI
V3
VIN4
Data input
0.5V↔VREG–0.5V
CK
V4
CS
GND
ANALOG
V
Measurement circuit 4
Rev.2.00 Mar 04, 2005 page 6 of 23
M61047FP
CFET
PCFET
DFET
VCC
VIN12
VIN1
VREG
V1
0.47µF
VIN2
V2
VIN3
DI
V3
VIN4
CK
V4
Data input
0.5V↔VREG–0.5V
CS
Isink
GND
ANALOG
A
Isource
Measurement circuit 5
CFET
PCFET
DFET
VCC
VIN12
VIN1
VREG
14V
3.3V
VIN2
VIN3
DI
VIN4
CK
CFETCNT
DFETCNT
A
A
GND
Measurement circuit 6
Rev.2.00 Mar 04, 2005 page 7 of 23
CS
A
ANALOG
A
A
M61047FP
CFET
PCFET
DFET
VCC
VIN12
A
VIN1
VREG
A
VIN2
A
VIN3
A
VIN4
V1
0.47µF
V2
DI
V3
CK
V4
CS
GND
ANALOG
Measurement circuit 7
Rev.2.00 Mar 04, 2005 page 8 of 23
Data input
0.5V↔VREG–0.5V
M61047FP
Operation Description
M61047FP is developed for intelligent Li-ion battery pack such as SB in SBS. M61047FP is suitable for Smart Battery.
Pair using with Microcomputer such as M37517 and small additional parts will give various functions such as battery
remaining capacity detection. All functions are described as follows.
Note: SBS: Smart Battery System introduced by Intel and Duracell
SB: Smart Battery, which contains 3 or 4 series Li-ion battery cells.
Voltage Detection Circuit of Each Li-ion Battery Cell
M61047FP can output each battery cell's voltage of 3 or 4 series connection. Built-in buffer amplifier is monitoring
each battery voltage.
Series Regulator
M61047FP contains low drop out series regulator. Microcomputer in SB does not need any additional voltage regulator.
Usually, although series regulator is 3.3 V output, it is possible to change to 5 V output by register setup at the time of
flash memory rewriting of microcomputer.
Reset Circuit
Vreg output voltage is checked by Reset circuit of M61047FP. Therefore, lower voltage of Vreg issues RESET signal
to stop mull-function of microcomputer. Also, lower voltage after long time's left issues RESET signal to stop mullfunction of microcomputer. This function is useful for safety of long time's left battery.
When charger is connected to SB, this circuit will check Vreg voltage, so if Vreg voltage is NOT enough high, this
circuit remains low as for RESET signal to microcomputer.
Conditioning Circuit
M61047FP 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.
Power Save Function
M61047FP contains power save function to control several supply current. It can operate in the three state, usual mode,
power save mode, and power down mode. These three modes can be changed by the command from a microcomputer,
and can control the consumption current in each mode.
1. Usual mode
It is in the state where all circuits are operating.
2. Power save mode
In power save mode, consumption current is reduced by stopping voltage detection circuit, and outputting ALALOG
output with GND level. If ANALOG output is changed to the battery voltage output or offset voltage output of each
cell by the command from a microcomputer, it will change to usual mode. In addition, the regulator circuit is
operating in a power save mode.
3. Power down mode
In power down mode, all circuits will be stopped.
The shift to power down mode and operation at the time of resume from power down mode are explained below using
Figure 2.
Rev.2.00 Mar 04, 2005 page 9 of 23
M61047FP
• Enter Power Down Mode
Microcomputer issues power down command to M61047FP after microcomputer detects that battery voltage is too
low. After this command, the DFET pin is set to 'high' and the VIN12 pin is pulled down by internal resistor to be
set 'low' and series regulator are turned off.
In the power down mode, the M61047FP operation is impossible. And CFET, DFET and PCFET are set to 'high'.
(In this situation, discharging is forbidden.) At this time, supply current becomes max. 0.5 µA, so drops of battery
voltage is prevented.
• Resume from Power Down Mode
After entering Power Down mode, the series regulator will begin operation when charger is connected (VIN12 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 M61047FP from power down mode.
VIN12
DFET
VCC
PCFET
CFET
GND level
in discharging
FET control circuit
Series
regulator
VREG
DFETCNT
CFETCNT
RESET
RESET circuit
CS
CK
Serial to pallarel
conversion circuit
DI
Figure 2 Function After Detecting Over-Discharge
Rev.2.00 Mar 04, 2005 page 10 of 23
VIN1
M61047FP
Block Diagram Description
Battery Voltage Detection Circuit
The M61047FP battery voltage detection circuit is shown in Figure 3. This circuit is composed of switch, buffer
amplifier, reference voltage section and logic circuit.
Microcomputer selects detecting voltage before logic circuit controls the connection of switches. This connection
decides which cell voltage (Vbat1, Vbat2, Vbat3, Vbat4) should be output from Analog out pin. Besides offset voltage
can be output.
In Power Down mode, supply current in this block is close to zero because all switches are off.
Note: Regard 100 µs as the standard of settling time by voltage change in this block.
S11
VIN1
VBAT1
Switch control
From Serial to Parallel
conversion circuit
S22
VIN2
S21
Logic circuit
VBAT2
S32
VIN3
S31
VBAT3
S42
–
VIN4
+
To Multiplexer circuit
S41
VBAT4
S02
GND
VREF
S01
Figure 3 Battery Voltage Detection Circuit
Table 1
Turned on Switches
Function
Turn on Switch (refer to Figure 3)
VBAT1_OUTPUT
VBAT2_OUTPUT
S11, S22
S21, S32
VBAT3_OUTPUT
VBAT4_OUTPUT
S31, S42
S41, S02
VBAT1_OFFSET
VBAT2_OFFSET
S21, S22
S31, S32
VBAT3_OFFSET
VBAT4_OFFSET
S41, S42
S01, S02
Rev.2.00 Mar 04, 2005 page 11 of 23
M61047FP
Analog Output Selector
Analog output selector block is shown in Figure 4. The command from microcomputer determines whether GND is
outputted to an analog terminal, or the voltage chosen in the battery voltage detection circuit is outputted.
At the time of GND output, since the battery voltage detection circuit stops, M61047FP goes into power save mode.
From Serial to Parallel
conversion circuit
ANALOG
Analog output
selector
Battery voltage
detection circuit
–
+
VREF
Figure 4 Analog Output Selector
Rev.2.00 Mar 04, 2005 page 12 of 23
M61047FP
Series Regulator
Series regulator is shown in Figure 5. Pch MOS transistor is used for output driver.
The output voltage can be adjusted by M61047FP itself. So the external resistor is not required.
Usually, although series regulator is 3.3 V output, it is possible to change to 5 V output by register setup at the time of
flash memory rewriting of microcomputer.
Note: There is a diode put between Vcc and Vreg terminal to prevent the invert current from damaging this IC when
Vcc Voltage is higher than Vreg voltage. So please always keep Vreg voltage lower than Vcc+0.3 V. Set a
condenser on output to suppress input changes or load changes.
In order to suppress input change and load change, please attach a 0.47 µF capacitor to VREG output. Regard
10 ms as the standard of settling time by input change/load change/output change.
VCC
+
–
VREG
VREF
S51
S52
R1
R2
R3
GND
Switch control
Serial to Parallel
conversion circuit
Figure 5 Series Regulator
Rev.2.00 Mar 04, 2005 page 13 of 23
M61047FP
Reset Circuit
The M61047FP reset circuit is shown in Figure 6. This circuit is composed of comparator, reference voltage section
and breeder resistor. Hysterics is given to detection voltage and release voltage.
The reset output is Nch open drain structure so the reset delay time depends on external CR value.
The reset circuit monitoring Vreg output to prevent microcomputer abnormal operation when Vcc voltage goes down
abnormally.
VREG
VREG
R1
+
–
RESET
R2
VREF
Rh
GND
Figure 6 Reset Circuit
Rev.2.00 Mar 04, 2005 page 14 of 23
M61047FP
Conditioning Circuit
The M61047FP conditioning circuit is shown in Figure 7. This circuit is composed of switch, resistor and logic circuit.
According to the serial data from microcomputer, the logic circuit can individually control the switches (S61, S62 …
etc.) to do individual cell discharge.
Moreover, it is possible to also make from 1 cell to 4 cells discharge similarly by sending serial data two or more times.
VIN1
S61
VBAT1
R61
VIN2
S62
VBAT2
Switch control
From Serial to Parallel
conversion circuit
R62
VIN3
Logic circuit
S63
VBAT3
R63
VIN4
S64
VBAT4
R64
GND
Figure 7 Conditioning Circuit
Rev.2.00 Mar 04, 2005 page 15 of 23
M61047FP
Resister Map
Address
Table 2
Address
Establishment Data
Data
Contents
D5
D4
D3
D2
D1
D0
Reset
Battery voltage output
FET control
0
0
0
0
0
1
0
1
0
—
—
—
—
—
—
—
—
—
—
Refer to table 3
Refer to table 4
Multiplexer select
Regulator
0
1
1
0
1
0
—
—
—
—
—
—
Refer to table 5
Refer to table 6
Conditioning circuit
Don’t care
1
1
0
1
1
0
—
—
—
—
—
—
Refer to table 7
—
Don’t care
1
1
1
—
—
—
—
Data
Table 3
Battery Voltage Output
D2
D1
D0
Name
Function
0
0
0
0
0
1
VBAT1_OUTPUT
VBAT2_OUTPUT
BAT1 voltage monitor
BAT2 voltage monitor
0
0
1
1
0
1
VBAT3_OUTPUT
VBAT4_OUTPUT
BAT3 voltage monitor
BAT4 voltage monitor
1
1
0
0
0
1
VBAT1_OFFSET
VBAT2_OFFSET
Offset voltage output at BAT1 monitor
Offset voltage output at BAT2 monitor
1
1
1
1
0
1
VBAT3_OFFSET
VBAT4_OFFSET
Offset voltage output at BAT3 monitor
Offset voltage output at BAT4 monitor
Note: Analog terminal output GND level when system reset.
(All switches for battery voltage detect circuit are turned off.) Regard 100µs as the standard of settling time by
each change of ANALOG output.
Table 4
FET Control
Function
D2
D1
D0
Name
CFET
DFET
PCFET
0
0
0
0
0
1
0
1
0
FCNT_AH
FCNT_PL
FCNT_DL
High
High
High
High
High
Low
High
Low
High
0
1
1
0
1
0
FCNT_CH
FCNT_CL
High
Low
Low
High
Low
High
1
1
0
1
1
0
FCNT_DH
FCNT_PH
Low
Low
High
Low
Low
High
1
1
1
FCNT_AL
Low
Low
Low
Note: CFET, DFET and PCFET terminal are high when system reset.
Rev.2.00 Mar 04, 2005 page 16 of 23
M61047FP
Table 5
Multiplexer Control (Analog Output Control)
D2
D1
D0
Name
Function
0
0
0
0
0
1
0
1
0
MP_GND1
MP_RUN
MP_GND2
GND output
Battery voltage output select
GND output
0
1
1
0
1
0
MP_GND3
—
GND output
Don’t care
1
1
0
1
1
0
—
—
Don’t care
Don’t care
1
1
1
—
Don’t care
Notes
BAT1 voltage monitor
All switches for battery voltage detect
are OFF.
BAT4 offset voltage
Note: Analog terminal output GND level when system reset.
Regard 100µs as the standard of settling time by each change of ANALOG output.
Table 6
Regulator
D2
D1
D0
Name
Function
Notes
0
0
0
0
0
1
0
1
0
VREG_33
VREG_OFF
VREG_50
VREG = 3.3 V
VREG = 0 V (Regulator turned off)
VREG = 5.0 V
0
1
1
0
1
0
VREG_33
Don’t care
VREG = 3.3 V
1
1
0
1
1
0
Don’t care
Don’t care
Power Down Command
1
1
1
Don’t care
Note: The regulator output 3.3 V when system reset.
All functions of M61047FP are stopped. But if the charger is connected then M61047FP will not enter power
down mode.
Regard 20 ms as the standard of settling time by change of VREG output.
Table 7
Conditioning Circuit
Function
D2
D1
D0
Name
BAT1_SW
BAT2_SW
BAT3_SW
BAT4_SW
0
0
0
0
0
1
CD_OFF
CD_RON11
OFF
ON
OFF
Don’t care
OFF
Don’t care
OFF
Don’t care
0
0
1
1
0
1
CD_RON21
CD_RON31
Don’t care
Don’t care
ON
Don’t care
Don’t care
ON
Don’t care
Don’t care
1
1
0
0
0
1
CD_RON41
CD_RON12
Don’t care
ON
Don’t care
Don’t care
Don’t care
Don’t care
ON
Don’t care
1
1
1
1
0
1
CD_RON22
CD_RON32
Don’t care
Don’t care
ON
Don’t care
Don’t care
ON
Don’t care
Don’t care
Note: Conditioning circuit is floating when system reset.
By transmitting data two or more times, BAT1 to BAT4 arbitrary cells can be turned on simultaneously.
Rev.2.00 Mar 04, 2005 page 17 of 23
M61047FP
Digital Data Format
The block diagram of the serial to parallel conversion circuit of serial data transmission is shown in Figure 8, and a
timing chart is shown in Figure 9, respectively. After setting CS terminal to Low, serial data is read into the inside of
IC in an order from LSB (D0) synchronizing with the stand-up of CK terminal. If CS terminal is set to High when it
inputs by 6 bits, the contents of a 6-bit shift register are latched to an internal latch circuit after serial to parallel
conversion.
MSB
First
Last
DI
LSB
6-bit shift register
CK
D5
CS
D4
Address
D3
D2
D1
D0
Decoder
Latch
Latch
Latch
Latch
MPX
MPX
MPX
MPX
MPX
Vreg
control
Battery
voltage
output
Multiplexer Conditioning
control
control
FET
control
Latch
Figure 8 Serial to Parallel Conversion Circuit
LSB
DI
MSB
D0
D1
D2
D3
D4
D5
CK
CS
Figure 9 Timing Chart
Direct FET Control
It is possible to control direct FET by sending a signal to DFETCNT terminal or CFETCNT terminal other than serial
data transmission from a microcomputer. If DFETCNT terminal is set to high, DFET terminal will be set to high, and if
CFETCNT terminal is set to high, CFET terminal and PCFET terminal will be set to high. Priority is given to this
function regardless of serial data communications.
Rev.2.00 Mar 04, 2005 page 18 of 23
M61047FP
Timing Chart
Battery voltage (V)
Charging Sequence
5
Vbat4 reaches overcharge
detect voltage
4
3
From bottom: Vbat1, Vbat2, Vbat3, Vbat4
2
Charging time
1
0
CFET (V)
20
15
10
5
Instruction from
microprocessor
Off during
initialization
Start of charging
Instruction from
microprocessor
End of charging
0
PCFET (V)
20
15
10
5
Instruction from
microprocessor
Off during
initialization
Instruction from
microprocessor
Start of precharging
End of charging
0
DFET (V)
20
15
10
Instruction from
microprocessor
Off during
initialization
5
Start of charging
VREG, RESET (V)
Battery voltage (V)
0
20
VCC pin
15
10
VIN_1 pin
5
0
4
3
2
1
0
VREG
Charger
connected
RESET
Microprocessor
operation start
ANALOG (V)
3
2
1
Instruction from
microprocessor
0
Note: A constant voltage battery charger is used.
Rev.2.00 Mar 04, 2005 page 19 of 23
VBAT1
monitor
VBAT3
VBAT2 monitor
monitor
VBAT4
monitor
M61047FP
Battery voltage (V)
Discharge Sequence
5
From top: Vbat1, Vbat2, Vbat3, Vbat4
4
Self-discharge time
3
2
Vbat4 reaches excess
discharge detect voltage
Discharge time
1
0
CFET (V)
20
15
Instruction from
microprocessor
10
5
0
PCFET (V)
20
15
10
Instruction from
microprocessor
5
0
DFET (V)
20
Instruction from
microprocessor
15
10
5
End of discharge
Off in power-down
mode
Battery voltage (V)
20
VREG, RESET (V)
0
4
15
VIN_1 pin
10
VIN_12 pin
Pulled down to ground potential
when discharge prohibited
5
0
3
VREG
ANALOG (V)
Instruction from
microprocessor
RESET
2
System stop
1
0
3
2
1
0
Rev.2.00 Mar 04, 2005 page 20 of 23
VBAT1
monitor
VCC pin
VBAT2
VBAT3
VBAT4
monitor
monitor
monitor
M61047FP
Application Circuit
1kΩ
+ terminal
10kΩ
VIN12
0.22µF
DFET
6.8Ω
VCC
PCFET
CFET
1kΩ
VIN1
VREG
0.22µF
VBAT1
0.47µF
1kΩ
VIN2
CS
0.22µF
VBAT2
CK
MCU
M37517F8HP
DI
1kΩ
M61047FP
VIN3
0.22µF
VBAT3
RESET
CFETCNT
1kΩ
VIN4
DFETCNT
0.22µF
VBAT4
GND
ANALOG
– terminal
Figure 10 Application Circuit for 4 Cell Battery
Rev.2.00 Mar 04, 2005 page 21 of 23
M61047FP
1kΩ
+ terminal
10kΩ
VIN12
0.22µF
DFET
6.8Ω
VCC
PCFET
CFET
VIN1
VREG
0.47µF
1kΩ
VIN2
CS
0.22µF
VBAT2
CK
MCU
M37517F8HP
DI
1kΩ
M61047FP
VIN3
0.22µF
VBAT3
RESET
CFETCNT
1kΩ
VIN4
DFETCNT
0.22µF
VBAT4
GND
ANALOG
– terminal
Figure 11 Application Circuit for 3 Cell Battery
Rev.2.00 Mar 04, 2005 page 22 of 23
M61047FP
Package Dimensions
JEITA Package Code
RENESAS Code
Previous Code
MASS[Typ.]
P-LSSOP20-4.4x6.5-0.65
PLSP0020JB-A
20P2F-A
0.1g
11
E
*1
HE
20
NOTE)
1. DIMENSIONS "*1" AND "*2"
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION "*3" DOES NOT
INCLUDE TRIM OFFSET.
F
1
Index mark
10
c
A2
A1
Reference
Symbol
*2
Dimension in Millimeters
Min
Nom
Max
D
6.4
6.5
6.6
E
4.3
4.4
4.5
L
D
A
A2
1.15
A
*3
e
y
bp
Detail F
1.45
A1
0
0.1
0.2
bp
0.17
0.22
0.32
c
0.13
0.15
0°
HE
6.2
6.4
6.6
e
0.53
0.65
0.77
0.3
0.5
y
L
Rev.2.00 Mar 04, 2005 page 23 of 23
0.2
10°
0.10
0.7
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