UB2011

Preliminary

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

7 of 7

www.unisonic.com.tw

QW-R121-028 .a



TYPICAL APPLICATION CIRCUIT (Cont.)

Fig.3 Switch-Mode (PFM) Charge Application Circuit

C1

+

R3

GREEN

R4

RED

+

C3

C4

R2

R1

Q1

1

2

3

4

LED

DRC

CS

BAT

LV

VT

5

6

7

8

UTC UB2011

C5

R9

D1

+

C2

R7

R6

R5

BAT

L1

D2

R10

Fig.4 Switch-Mode (PFM) Charge Application Circuit (2~4 Cell)

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