01/31/2008 Rev.1.00

www.SiliconStandard.com

2

SS6781B

the risk of overdischarging. Test mode is provided

for charger manufactures to dramatically reduce

production test time.

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

SS6781B

R8

300K

R9

91K

R10

100K

+

C9

4.7µF

C7

0.1µF

C10

47nF

R15

680

R3

270

R2

20/5W

SW1

PB SW

R12

100K

R16

680

R17

680

R14

200K

C8

+

C11

100µF

RX

R11

5.1K

RY

C6

0.1µF

R13

470K

Q2

MMBT2222A

R6

50K

LED2

GREEN

LED3

RED

LED1

YELLOW

Q1

MPS2222A

+

C4

220µF

C5

+

C12

1µF

+

C13

10µF

R5 120/0.5W

R1

1K

BAT1

R7

VIN

11~15V

L1

220µH

C2

1µF

C1

470P

RS

0.3/1W

1

2

3

GND

4

FB

5

VCC

DC

DE

CF

6

IS

7

BOOST

8

U1

SS6563

+ C3

220µF

R4

390K

D3

IN4148

D1

IN4148

D2 IN5819

D4

1N5819

VIN

VOUT

GND

U3

78L05

**3~5 NiMH/NiCd cells.

Note: Charge Current=0.3/RS Ampere

Safety Timer: 80min

Battery Charge Circuit for Fluctuating Charging Current Application

ORDERING INFORMATION

PACKING TYPE

TR: TAPE & REEL

TB: TUBE

PACKAGE TYPE

N: PLASTIC DIP

S: SMALL OUTLINE

C: COMMERCIAL

G: LEAD FREE COMMERCIAL

Example: SS6781BCSTR

in SO-16 Package & Tape & Reel Packing Type

(CN is not available in TR packing type)

SS6781BGSTR

in SO-16 Lead Free Package & Tape & Reel

Packing Type

16

14

15

10

12

11

13

TOP VIEW

PIN CONFIGURATION

9

1

3

2

5

7

6

4

8

PEAK

VBT

DIS

VTS

VCC

ADJ

SEL3

SEL1

SEL2

MODE

LED1

GND

TMR

DSW

ICON

LED2

SS6781BXXXX