VIPER100-E データシートの表示（PDF） - STMicroelectronics

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VIPER100-E

SMPS PRIMARY I.C.

STMicroelectronics 

VIPer100-E

SMPS PRIMARY I.C.

General Features

Type

VIPer100-E

VDSS

620V

In

RDS(on)

3A

2.5 Ω

■ ADJUSTABLE SWITCHING FREQUENCY UP

TO 200 kHz

■ CURRENT MODE CONTROL

■ SOFT START AND SHUTDOWN CONTROL

■ AUTOMATIC BURST MODE OPERATION IN

STAND-BY CONDITION ABLE TO MEET

“BLUE ANGEL” NORM (<1w TOTAL POWER

CONSUMPTION)

■ INTERNALLY TRIMMED ZENER

REFERENCE

■ UNDERVOLTAGE LOCK-OUT WITH

HYSTERESIS

■ INTEGRATED START-UP SUPPLY

■ OVER-TEMPERATURE PROTECTION

■ LOW STAND-BY CURRENT

■ ADJUSTABLE CURRENT LIMITATION

Block Diagram

PENTAWATT HV

PENTAWATT HV (022Y)

Description

VIPer100-E, made using VIPower M0 Technology,

combines on the same silicon chip a state-of-the-

art PWM circuit together with an optimized, high

voltage, Vertical Power MOSFET (620V/ 3A).

Typical applications cover offline power supplies

with a secondary power capability of 50W in wide

range condition and 100W in single range or with

doubler configuration. It is compatible from both

primary or secondary regulation loop despite

using around 50% less components when

compared with a discrete solution. Burst mode

operation is an additional feature of this device,

offering the ability to operate in stand-by mode

without extra components.

OSC

ON/OFF

OSCILLATOR

SECURITY PWM

LATCH

LATCH

VDD

UVLO

LOGIC

R/S FF Q

S

S

R1 FF Q

R2 R3

OVERTEMP.

DETECTOR

0.5 V +

_

ERROR

_ AMPLIFIER

13 V +

4.5 V

1.7 µ s

DELAY

September 2005

250 ns

BLANKING

COMP

DRAIN

0.5V

++ _

_

1 V/A

CURRENT

AMPLIFIER

SOURCE

Rev 1

1/29

www.st.com

29

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