HT2800S

3/6

High Performance Primary Sensing Regulation Controller IC

www.hotchip.com.cn

Ver1.0

Absolute Maximum Ratings

700V

IC Peak Current:

200mA

VCC Pin Voltage

8.6V

FB Pin Voltage

7V

Others Pin Voltage

Vcc+0.3V

Operating Temperature (Tj)

0~ +150℃

Storage Temperature

-55~ +150℃

Lead Temperature

ESD (Human Body Mode)

3000V

Note 1: Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. Under

“recommended operating conditions” the device operation is assured, but some particular parameter may not be achieved.

Electrical Characteristics

Parameter

Symbol

Conditions

Min.

Typ.

Max

Unit

Start- up Voltage

-

7.5

8.0

8.8

V

Shut down

-

3.0

3.3

3.5

V

Star-up Current

-

-

0.2

1

uA

Operating Current

-

400

500

uA

Max. Operating Voltage

-

-

-

8.5v

Current Sense Section

Maximum Current to CS PIN

-

3.4

4

5

uA

Current Sense Threshold Voltage

510

mV

Leading Edge Blanking

Ic＝1mA

500

-

nS

Feedback Input Section

FB Reference Voltage

2.85

2.9

2.95

V

Input Resistance of FB Pin

1.2

1.5

2

MΩ

Feedback Threshold Voltage

5

V

Internal Transistor

Collector- Emitter Saturation Voltage

Ic＝50mA

Ib=10mA

0.5

V

Collector- Base Voltage

700

V

OVER TEMPERATURE PROTECTION(OTP)

Shutdown Temperature

TSHDN

135

140

145

℃

Temperature Hysteresis

THYS

125

130

135

℃