HT2802D

4/8

High performance primary sensing regulator (PSR)

www.hotchip.com.cn

Ver1.0

measured by setting GND Potential as zero Potential in room Temp.）

Parameter

Symbol

Conditions

Min

Type

Max

Unit

V

CC UVLO SECTION

Star-up Voltage

VCC-

ON

7.5

8.0

8.8

V

Shut down

VCC

OFF

3.0

3.3

3.5

V

Star-up Current

IStar

0.2

1

uA

Operating Current

ICC

500

800

uA

Max. Operating

Voltage

VCC-

MAX

8.5v

CURRENT SENSE SECTION

Maximum Current to

CS PIN

ICS

3.4

4

5

uA

Current Sense

Threshold Voltage

VCS

510

mV

Leading Edge

Blanking

TLEB

Ic＝1mA

500

nS

FEED BACK INPUT SECTION

FB Reference

Voltage

VREF-

FB

2.85

2.9

2.95

V

Input Resistance of

FB Pin

RFB

1.2

1.5

2

MΩ

Feedback Threshold

Voltage

VFB-

MAX

5

V

POWER BJT SECTION

Collector-emitter

Saturation Voltage

VCE

sat

Ic＝1000mA

Ib＝200mA

0.6

V

Collector-Base

Voltage

VCBO

800

V

OVER TEMPERATURE PROTECTION(OTP)

Shutdown

Temperature

TSHD

N

135

140

145

℃

Temperature

Hysteresis

THYS

125

130

135

℃