viper50b STMicroelectronics, viper50b Datasheet

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viper50b

Manufacturer Part Number

viper50b

Description

Smps Primary I.c.

Manufacturer

STMicroelectronics

Datasheet

1.VIPER50B.pdf (20 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

BOSTOCK HK LIMITED

Part Number:

VIPER50B

Manufacturer:

ST

0

Company:

Meier Automation Equipment Co., Limited

Meier Automation Equipment Co., Limited

Part Number:

VIPER50B

Manufacturer:

ST

Quantity:

20 000

Company:

BOSTOCK HK LIMITED

BOSTOCK HK LIMITED

Part Number:

viper50bSP

Manufacturer:

ST

0

Current page: 1 of 20
Download datasheet (187Kb)

FEATURE

BLOCK DIAGRAM

December 1999

VIPer50B/BSP

ADJUSTABLE SWITCHING FREQUENCY UP

TO 200KHZ

CURRENT MODE CONTROL

SOFT START AND SHUT DOWN 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

AVALANCHE RUGGED

OVERTEMPERATURE PROTECTION

LOW STAND-BY CURRENT

ADJUSTABLE CURRENT LIMITATION

T YPE

V

DD

13 V

400 V

V

+

_

DSS

AMPLIFIER

ERROR

0.5 V

LOGIC

UVLO

3 A

I

n

ON/OFF

4.5 V

+

_

R

OVERTEMP.

DETECTOR

SECURITY

2.2

R/S

DS(on)

LATCH

1.7

DELAY

S

FF

s

Q

LATCH

PWM

OSCILLATOR

R1

DESCRIPTION

VIPer50B made using VIPower M0 Technology

combines

state-of-the-art PWM circuit together with an

optimized high voltage avalanche rugged Vertical

Power MOSFET (400 V / 3 A). Typical

applications cover off line power supplies with a

secondary power capability of 50W in a US mains

lines 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 possibility to operate in stand-by

mode without extra components.

R2 R3

COMP

PENTAWATT HV

OSC

FF

S

Q

BLANKING

250 ns

SMPS PRIMARY I.C.

on

PowerSO-10

the

+

_

10

0.5V

+

_

AMPLIFIER

CURRENT

VIPer50BSP

same

1 V/A

1

SOURCE

DRAIN

VIPer50B

PENTAWATT HV

silicon

TARGET DATA

(022Y)

chip

1/20

a

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