US107

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

2 of 8

www.unisonic.com.tw

QW-R129-004.d



MARKING

US107A

US107B

US107C

U17Ax

L: Low, H: High

U17Bx

L: Low, H: High

U17Cx

L: Low, H: High



PIN CONFIGURATION

3

2

1

4

5

OC

OUT GND

EN (EN)

IN



PIN DESCRIPTION

PIN NO.

PIN NAME

DESCRIPTION

1

OUT

Switch Output: Output MOSFET Source of switch. Typically connect to switched side of

load.

2

GND

Ground

3

OC

Over-Current: Open-Drain OC output.

4

EN( EN )

Enable: Logic level enable input.

Make sure EN pin never floating.

5

IN

Input Supply: Output MOSFET Drain, which also supplies IC's internal circuitry. Connect

to positive supply.



BLOCK DIAGRAM

EN

(EN)

GND

Clock

BandGap

Reference

UVLO

Gate Control

Overcurrent

Limiting

Thermal Sense

CMP

Current

Sense

Shutdown

Signal

OC Deglitch logic

IN

Output

Reverse-Voltage

Protection

OUT

OC