AIC1781

2

TYPICAL APPLICATION CIRCUIT

PEAK

1

VBT

2

DIS

3

VTS

4

VCC

5

ADJ

6

SEL3

7

TMR

8

MODE

9

SEL2

10

SEL1

11

GND

12

LED1

13

LED2

14

ICON

15

DSW

16

U2

AIC1781

R9

240K

R8

120K

R10

100K

+

C9

4.7

µF

C7

0.1

µF

C10

47nF

R15

680

R3

270

R2

20/5W

SW1

SW PB

R12

100K

R16

680

R17

680

R14

200K

C8

+

C11

100

µF

RX1

100K

R11

100K

RY1

100K

C6

0.1

µF

R13

470K

Q2

2N3904

R18

50K

LED2

GREEN

LED3

RED

LED1

YELLOW

Q1

2N3904

+

C4

220

µF

C5

+

C12

1uF

+

C13

10

µF

R5 120/0.5W

R1

1K

BAT1

BATTERY

R7

VIN

L1

220

µH

C2

1

µF

C1

1000P

R6

0.3/1W

1

2

3

GND

4

FB

5

VCC

DC

DE

CF

6

IS

7

BOOST

8

U1

AIC1563

+

C3

220

µF

R4

390K

D3

IN4148

D1

IN4148

D2 IN4148

D4

1N5819

VIN

1

VOUT

3

2 GND

U3

7805

Battery Charge Circuit for Fluctuating Charging Current Application

ORDERING INFORMATION

PACKAGE TYPE

N: PLASTIC DIP

S: SMALL OUTLINE

TEMPERATURE RANGE

C= 0

°C~70°C

ORDER NUMBER

AIC1781CN

(PLASTIC DIP)

PIN CONFIGURATION

AIC1781XX

AIC1781CS

(PLASTIC SO)

1

3

2

16

14

15

5

7

6

10

12

11

4

8

13

9

PEAK

VBT

DIS

VTS

VCC

ADJ

SEL3

SEL1

SEL2

MODE

LED1

GND

TMR

DSW

ICON

LED2

ABSOLUTE MAXIMUM RATINGS

Supply Voltage

............................................…………........................................ 5.5V

DC Voltage Applied on any pin ......................……………...................................... 5.5V

Sink current of ICON pin, LED1 and LED2 pin .......................……….................. 20mA

Operating Temperature Range .....................................…………….............. 0

°C~ 70°C

Storage Temperature Range .............................................…………...... -65

°C~ 150°C