UTCMM1538

LINEAR INTEGRATED CIRCUIT

5

QW-R109-009,A

PIN

NO.

PIN NAME INPUT/OUTPUT

FUNCTION

INTERMAL EQUIVALENT CIRCUIT

39

START

Input

Voltage Multiplier DC-DC

Converter Start

39

200k

Ω

390k

Ω

BATT

40

OFF

Input

Voltage Multiplier DC-DC

Converter OFF

27k

Ω

VSYS1

40

180k

Ω

41

CHGVcc

Input

Charging Circuit Power

Supply Input

Charging Circuit Power Supply

42

SEL

Input/Output

Empty Detect Level Switch

15kΩ

BATT

42

200kΩ

130kΩ

43

PREGND

Pre Section Power Supply

Ground

Pre Section Power Supply Ground

44

PWMFIL

Input

PWM Phase Compensation

44

2k

Ω

VSYS1

2k

Ω

*The positive and negative outputs are the polarity with respect to the input