AIC1783
Battery Charge Controller
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FEATURES
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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.
Fast Charge Control of NiMH/NiCd Batteries.
Fast Charge Termination by:
−
? V
,
0 ? V
, Safety
Timer, Maximum Voltage.
Protection against Battery Voltage Fault.
Pulsed Trickle Charge Mode.
Quick and Easy Testing for Production.
8-pin DIP or SO Packages.
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APPLICATIONS
Battery Fast Chargers for:
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Mobile Phones.
Notebook and Laptop Personal Computers.
Portable Power Tools and Toys.
Portable Communication Equipment.
Portable Video & Stereo Equipment.
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TYPICAL APPLICATION CIRCUIT
U1
7805
VIN
C5
1
µ
F
1N4148
D3
R1
1K
220
µ
H
1N5822
1
+
+
1
VIN
VOUT
GND
3
+
C6
R3
100K
LED1
R4
120K
U2
REF
VCC
VBT
ICON
LED
AIC1783
RED
2
10µF
L1
C1
1µF
R13
120/0.5W
U3
R9
390K
D4
D2
C2
BATTERY
C3
0.1µF
BAT1
D1
1N5822
8
7
6
5
R6
R7
47K
R2
240K
R11 100K
R5
C4
+
2 TIMER
3 MODE
C10
47nF
R12
150K
4 GND
6
8
0
R8
10K
Q1
220µF
1
2
DC
DE
BOOST
IS
VCC
FB
AIC1563
8
7
6
5
IN4148
R10
0.3/5W
+
120K
0.1
µ
F
C9
4.7µF
2N222
3
CF
C7
1000P
4
GND
C8
220µF
Battery Charge Circuit with Wide Input Voltage Range
Analog Integrations Corporation
DS-1783-00
May 28, 01
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
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AIC [ ANALOG INTERGRATIONS CORPORATION ]
