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PDF M62241FP Data sheet ( Hoja de datos )

Número de pieza M62241FP
Descripción SINGLE CHIP BATTERY CHARGER CONTROL IC
Fabricantes Mitsubishi 
Logotipo Mitsubishi Logotipo



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No Preview Available ! M62241FP Hoja de datos, Descripción, Manual

MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
DESCRIPTION
The M62241FP is designed as 1chip Integrated Circuit
for controlling battery charger. This IC contains analog
circuits needed for controlling charge, and time-
sequential-control logic circuits. This IC has various
functions such as not only charge-controlling but also
battery temperature detection, protection against over-
current / over-voltage, and safety timer. The combination
with some parts gives a charge circuit for Lithium -ion
battery easily.
FEATURE
Designed to operate at as low as 4V
CR oscillation circuit for internal logic
Terminating timer for preventing overcharge
30min. indicating timer
Main output switch drive circuit
LED drive circuit (1 system)to indicate charging status
System reset circuit for detecting the lowering of
supply voltage
Temperature detection for Lithium-ion battery
Voltage/current control for feedback to the primary side
of switching regulator
Various protections such as overvoltage detection at
charging, overcurrent detection at adaptor connection
Block Diagram
PIN configuration (Top view)
VCC 1
VDET 2
GND 3
PC 4
BP 5
BN 6
VBOUT 7
TH 8
CHGSW 9
THS 10
IDET 11
ADJ0 12
24 VBIN
23 REFOUT
22 REFIN
21 LED
20 CHG
19 DCJK
18 ADJ3
17 ADJ2
16 ADJ1
15 RC
14 CC
13 PGND
Outline 24P2Q-A
Application
VCR with camera, cellular phone,
battery charger for general electronic
equipments.
VCC
1
RC CC LED SW
15 14
21
9
CHG
20
VBIN 24
Power supply voltage
detection circuit
Oscillator
LED output
output
driver SW driver SW driver
VDET 2
PC 4
ADJ1 16
ADJ2 17
Reference voltage
regulator
Adapter
control
circuit
Voltage
control
circuit
Current
control
circuit
Voltage
amplifier
circuit
Logic Circuit
Adapter
connection
detection
19 DCJK
circuit
Battery
temperature
10 THS
detection
circuit
8 TH
Charge
completion
detection
circuit
Over-current
detection
circuit
Over
voltage
detection
circuit
Low
voltage
detection
circuit
Battery
voltage
detection
circuit
7 VBOUT
6 B-
5 B+
23 22
REFOUT REFIN
11
IDET
18 12
3 13
ADJ3 ADJ0 GND PGND
( 1 / 18 )
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M62241FP pdf
MITSUBISHI(Standard Linear IC)
M62241FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
FUNCTIONAL DESCRIPTION
<Each voltages written in following are set in standard application circuit.>
1. Adapter Constant Voltage Control
VDET pin supplies this block with voltage to control voltages of both adapter and protection
during charge.Control reference voltage ,applied by REFOUT pin , is constant.
Output voltage is generated from dividing the adapter voltage by external two resistors
connected to VDET pin and the modification of the dividing ratio of these resistors by CHG pin
changes the voltage of Adapter/Charge.
2. Charge Constant Current Control block
IDET pin supplies this block with voltage to control constant current during charge and is
controlled directly by the voltage of 0.1 resistance ,connected to low side,for the current
detection.Control referential voltage is set by ratio between external two resistors connected to
REFOUT pin.Buttery temperature detection control performs switching quick and trickle by
selecting ADJ pin as follows:.
Quick charge : ADJ1pin
Trickle charge : ADJ2pin
Adapter constant voltage control ,written in 1 clause, is capable of invalidating this control.
3. Charge constant voltage control block
VBIN pin supplies this block with voltage to control constant voltage during charging.
Output voltage of VBOUT pin,gained differentially from battery voltage,supplies to VBIN pin.
Control referential voltage ,applied from REFOUT pin, is constant.
4. Charge SW driving Circuit control block
This block controls SW pin,driving transistor for charging SW.
Charge off : SW=OPEN
Charge on : SW=L
5. Battery voltage differential gain block
Battery voltage input from B+/B- pin directly and outputs to VBOUT pin after differential gained.
The gain of Amplifier is 1/3
VBOUT=1/3(VB+ - VB-)
Input of OPAmp for differential gain or feedback resistance depends on external circuit element.
6. Output current & voltage Amplifier block
The voltage between GND and IDET pin is available to several detector after amplified.
The gain of this amplifier is 13.
The Gain Range:0 to 2A(Input voltage 0 to 0.2V) ->0.2 to 2.6V
( 5 / 18 )
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M62241FP arduino
MITSUBISHI(Standard Linear IC)
M62241FP
Flow chart
(1)Total
AC off
Return from
Adapter mode
Return from
Temperature protection
waiting mode
SINGLE CHIP BATTERY CHARGER CONTROL IC
START
Reset
No Battery Connection mode
poreset
"H"
Reset
"L"
AC power
connection
No
AC off
Y es
Adapter
DCJK connecting Adapter mode
No DCJK no connecting
Battery
Connection
Y es
Charge from initialization
All timer reset
poreset
"H"
"L"
AC power
connection
Y es
DCJK no
adapter
connecting
Battery
Connection
Wait Timer Counting Y es
Over voltage
No
DCJK connecting
No
Y es
No
Over discharge
VB<4.0V
VB4.0V
Temperature Check
Rising :-2°C<T<60°C
Falling :-5°C<T<55°C
LED on/off
Reset
ACoff
Adapter mode
No Battery Connection
mode
NG mode
waiting mode
L.T. 3.2s.
Wait Timer
ov er 3.2s
Rising :-2°C<T<13°C or 55°C<T<60°C
Falling :-5°C<T<10°C or 50°C<T<55°C
Temperature
Check
Rising :13°C<T<55°C
Falling :10°C<T<50°C
Rising :T<-2°C or T>60°C
Falling :T<-5°C or T>55°C
Trickle charge Quick charge Temperature Protection mode
( 11 / 18 )
9907

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