VIPER100A datasheet(1/31 Pages) STMICROELECTRONICS

Part #	VIPER100A

Description	SMPS PRIMARY I.C.

PDF	31 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 31 page

Rev 1

September 2005

1/31

31

VDD

OSC

COMP

DRAIN

SOURCE

13 V

UVLO

LOGIC

SECURITY

LATCH

PWM

LATCH

FF

R/S

S

Q

S

R1

R2 R3

Q

OSCILLATOR

OVERTEMP.

DETECTOR

ERROR

AMPLIFIER

_

+

0.5 V

+

_

1.7

µs

DELAY

250 ns

BLANKING

CURRENT

AMPLIFIER

ON/OFF

0.5V

1 V/A

_

+

_

4.5 V

VIPer100A-E

VIPer100ASP-E

SMPS PRIMARY I.C.

General Features

■

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

Description

VIPer100A-E/ASP-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

(700V/ 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.

Type

VDSS

In

RDS(on)

VIPer100A-E/ASP-E

700V

3 A

2.8

Ω

PENTAWATT HV

PENTAWATT HV (022Y)

1

10

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POWERSO-10TM

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