LD7550 Ver la hoja de datos (PDF) - Unspecified

Número de pieza

componentes Descripción

Fabricante

LD7550

Green-Mode PWM Controller

Unspecified 

LD7550

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

Absolute Maximum Ratings

Supply Voltage VCC

COMP, RT, CS

Operating Junction Temperature

Storage Temperature Range

Package thermal resistance (DIP-8)

Package thermal resistance (SOT-26)

Lead temperature (DIP-8, Soldering, 10sec)

Lead temperature (SOT-26, Soldering, 10sec)

GND

36V

-0.3 ~7V

150°C

-65°C to 150°C

100°C/W

250°C/W

260°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

limited.

3

Leadtrend Technology Corporation

LD7550-DS-00 August 2004

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