LD7552 查看數據表（PDF） - Unspecified

零件编号

产品描述 (功能)

比赛名单

LD7552

Green-Mode PWM Controller

Unspecified 

Block Diagram

VCC

40V

16.0V/

11.4V

UVLO

internal bias

& Vref

RT

EN

OSC

Vref OK

COMP

CS

Green-Mode

Oscillator

2R

R

Leading

Edge

Blanking

EN

S

RQ

PWM

Comparator

+

+

Ramp from

Oscillator

OUT

GND

Absolute Maximum Ratings

Supply Voltage VCC

COMP, RT, CS

Operating Junction Temperature

Storage Temperature Range

Package thermal resistance (DIP-8)

Package thermal resistance (SOP-8)

Lead temperature (LD7552IS & LD7552IN, Soldering, 10sec)

Lead temperature (LD7552BS & LD7552BN, Soldering, 10sec)

36V

-0.3 ~7V

150 C

-65 C to 150 C

100 C/W

160 C/W

230 C

260 C

Caution:

Stresses beyond the ratings specified in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only

rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not

implied.

3

Leadtrend Technology Corporation

LD7552-DS-00 February, 2005

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