AIC1783 Datasheet, PDF (1/11 Pages) Analog Intergrations Corporation – Battery Charge Controller

AIC1783
Battery Charge Controller
n ^FEATURES
l Fast Charge Control of NiMH/NiCd Batteries.
l Fast Charge Termination by: −? V , 0? V , Safety
Timer, Maximum Voltage.
l Protection against Battery Voltage Fault.
l Pulsed Trickle Charge Mode.
l Quick and Easy Testing for Production.
l 8-pin DIP or SO Packages.
n ^APPLICATIONS
Battery Fast Chargers for:
l Mobile Phones.
l Notebook and Laptop Personal Computers.
l Portable Power Tools and Toys.
l Portable Communication Equipment.
l Portable Video & Stereo Equipment.
n ^DESCRIPTION
The AIC1783 fast charge controller IC is designed
for intelligent charging of NiMH or NiCd batteries
without the risk of overcharge. −? V detection
(-0.25%) and 0? V detection (peak voltage timer)
are the primary methods employed by the
AIC1783 to terminate fast charge. The fast charge
can also be cut off by maximum battery voltage
along with the safety timer to prevent charging
under fault conditions of the charging system or
the battery itself.
The safety timer period is adjustable for flexible
usage that AIC1783 could be applied in the wide
range of battery capacity. Test mode is provided
for charger manufactures to dramatically reduce
production test time.
n ^{TYPICAL APPLICATION CIRCUIT}
C1 1µF
R9
390K
C7
1000P
1 _DC
2 _DE
3 _CF
U3
8
BOOST
7
IS
6
VCC
4 _GND
5
FB
AIC1563
VIN
R13
120/0.5W
D4
1N4148
D3
C5
1µF
R1
1K
220µH
1N5822
L1
D1
1N5822
+ _C2
220µF
D2
C3
0.1µF
IN4148
R10
0.3/5W
+
C8
220µF
U1
1
VIN
7805
3
VOUT
+
GND
2
+ C6
10µF
R3
100K
R4
120K
R2
BAT1 240K
R11 100K
R5
C4 + _C9
120K 0.1_µF 4.7µF
C10 R12
47nF 150K
1 _REF ^U2 _VCC 8
2 _TIMER
VBT ⁷
3 _MODE
ICON ⁶
4 _GND
5
LED
AIC1783
LED1
RED
R 6 R7 R8
680 ^{47K 10K}
Q1
2N222
Battery Charge Circuit with Wide Input Voltage Range
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1783-00 May 28, 01
TEL: [phone] FAX: [phone]
www.analog.com.tw
1