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PDF M62240 Data sheet ( Hoja de datos )
| Número de pieza | M62240 | |
| Descripción | SINGLE CHIP BATTERY CHARGER CONTROL IC | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de M62240 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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MITSUBISHI Dig./Ana.INTERFACE
M62240FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
GENERAL DESCRIPTION
The M62240FP is a general purpose battery charger control IC.
It can control all of the sequence needed for battery charging, it
also has functions such as detection of battery temperature, a
protection against over-current/voltage, a safety timer and so on.
Moreover, it can adapt to charge Ni-Cd, Ni-MH batteries by adding
few peripheral components.
The IC has the feedback control of the charge current and output
voltage.
FEATURES
• Low voltage (3V) operation
• Built-in following functions and circuits ;
• CR oscillator for internal logic
• Initialization timer and safety timer for ∆V error detection and
over-charging
• D-A converter and shift registers to maintain the peak voltage
of battery.
• Main output SW driving circuits
• LED driving circuit for displaying the status of the charging
• System reset circuit for detecting the power supply voltage
• Temperature detection circuit for the Ni-MH battery
• Voltage and current control circuits for feedback to the primary
side of the SMPS.
• Protective functions including detection of over-voltage in
charge mode and over-current in adapter mode and so on
PIN CONFIGURATION (TOP VIEW)
ISET2 1
Vref1 2
LED 3
Rc 4
Cc 5
ChgSW 6
GND 7
BattSW 8
VTRSW 9
TEST 10
20 ISET1
19 OC SET
18 IDET
17 Vcc
16 VDET
15 P.C
14 Batt T
13 Vref2
12 Batt -
11 Batt +
Outline 20P2N-A
APPLICATION
Battery charger for video cameras and handheld
telephones, etc.
BLOCK DIAGRAM
Vcc Vref1 Vref2 VDET IDET
17
2 13
16 18
SYSTEM
STABLED
RESET CHT. PWR. SUP.
LED
3
LED
DRIVER
ChgSW
6
OUTPUT
SW DRIVER
P.C 15
ISET1 20
ISET2 1
7
GND
VOLTAGE
SET-UP CKT.
CONTROL LOGIC
8 BattSW
9 VTRSW
CURRENT
SET-UP CKT.
Batt TOVER-CURRENT BATTERY TEMP
DET. CKT.
DET. CKT
14
OSCILLATOR
CLOCK
GEN. CKT.
TEST
CKT.
Batt +-∆V ERROR DET. BATT. VOLTAGE
PREV. LOGIC
DET. CKT.
11
12 Batt -
45
Rc Cc
10 19
Test OCSET
(1/ 6)
9703
1 page  
MITSUBISHI Dig./Ana.INTERFACE
M62240FP
SINGLE CHIP BATTERY CHARGER CONTROL IC
Internal Voltage Set-up
Symbol
Parameter
Test conditions
VVTR Set-up output voltage at VTR mode
VCHG Set-up output voltage at charge mode
VISET1 Iset1 set-up voltage
When quick charging
VISET2 Iset2 set-up voltage
When trickle charging
Limits
Min Typ
828 864
1.21 1.26
124.8 130
11.52 12.0
Max
900
1.30
135.2
12.48
Unit
mV
V
mV
mV
VOCSET OCSET set-up voltage
When VTR mode
VCHG Voltage at the start of quick charging
211.2 220 228.8 mV
0.40 0.54 0.68 V
VOVP Over-voltage set-up voltage
V- ∆V -∆V detection set-up voltage
after initialization timer has passed
VVTHH1 Temperature detection set-up voltage Temperature at the start of charging
0.91
70
0.91
0.95
100
0.97
0.99 V
130 mV
1.01 V
VO/H Over-heating detection set-up voltage Charge stop temperature
0.82 0.86 0.90 V
Internal Voltage Set-up
Symbol
Parameter
Test conditions
fosc Oscillation frequency
Tm1 Initialization timer 1
Tm2 Initialization timer 2
Tms1 Safety timer 1
Tms2 Safety timer 2
Toc Over-current detection time
Rc=30KΩ,Cc=2200pF
Battery voltage < 5V
Battery voltage ≥ 5V
When quick charging
When trickle charging
When VTR mode
Note:
Each timer is set at an oscillation frequency of 10.24KHz.
Limits
Unit
Min Typ Max
9.42 10.24 11.06 KHz
18.4 20.0 21.6 min
4.6 5.0 5.4 min
4.6 5.0 5.4 hr
4.6 5.0 5.4 hr
9.2 10.0 10.8 sec
(5/ 6)
9703
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet M62240.PDF ] | |
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