Rev. 1.00

2

June 26, 2015

HT7L4813

Pin Assignment

HT7L4813

8 SOP-A

CS

CS

DRAIN

DRAIN

VSS

COMP

VCC

ZCD

1

2

3

4

8

7

6

5

Pin Description

Pin No.

Symbol

Description

1

VSS

Ground pin.

2

COMP

Loop compensation pin. A capacitor is placed between COMP and GND.

3

VCC

Power supply pin.

4

ZCD

Zero-current detect pin.

5, 6

DRAIN

Internal high voltage power MOSFET drain terminals.

7, 8

CS

Current sense pin. A resistor is connected to sense the MOSFET current.

Absolute Maximum Ratings

Parameter

Range

Internal MOSFET drain source voltage

-0.3V to 500V

VCC supply voltage

-0.3V to 33V

CS pin Input voltage

-0.3V to 6V

COMP pin Output voltage

-0.3V to 6V

ZCD pin Maximum current

3mA (source), 3mA (sink)

Maximum operating junction temperature

150°C

Storage temperature range

-55°C to 150°C

Recommended Operating Ranges

Parameter

Range

VCC Supply voltage

17V~25V

Operating junction temperature

-40°C~125°C

Output power

12.5W@150mA, 90~264Vac

17.6W@150mA,180~264Vac