VIPER37HE STMicroelectronics, VIPER37HE Datasheet

VIPER37HE

Manufacturer Part Number

VIPER37HE

Description

AC/DC Switching Converters ViperPlus Fixed Freq 800V 30mQ 265 Vac

Manufacturer

STMicroelectronics

Type

Off Line Switcherr

Datasheet

1.VIPER37HE.pdf (35 pages)

Specifications of VIPER37HE

Product Category

AC/DC Switching Converters

Rohs

yes

Input / Supply Voltage (max)

23.5 V

Input / Supply Voltage (min)

8.5 V

Switching Frequency

115 kHz

Supply Current

3.5 mA

Operating Temperature Range

- 40 C to + 150 C

Mounting Style

Through Hole

Package / Case

SDIP-10

Maximum Operating Temperature

+ 125 C

Minimum Operating Temperature

- 25 C

Number Of Outputs

Output Power

25 W

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Allchip Electronic(HK) Limited

Part Number:

VIPER37HE

Manufacturer:

STMicroel

Quantity:

13 842

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Features

■

Applications

■

Table 1.

February 2012

800 V avalanche rugged power section

PWM operation with adjustable limiting current

30 mW standby power at 265 Vac

Operating frequency:

– 60 kHz for L type

– 115 kHz for H type

Frequency jittering for low EMC

Output overvoltage protection

High primary current protection (2

Input undervoltage setting (brownout)

Onboard soft-start

Safe auto-restart after a fault condition

Hysteretic thermal shutdown

SMPS for set-top boxes, DVD players and

recorders, white goods

Auxiliary power supply for consumer and home

equipment

ATX auxiliary power supply

Low / medium power AC-DC adapters

Order codes

VIPER37LE

VIPER37HE

Device summary

VIPerPlus family: fixed frequency offline converter

OCP)

Doc ID 022218 Rev 1

Package

SDIP10

Description

This device is an offline converter with an 800 V

rugged power section, a PWM control, two levels

of overcurrent protection, overvoltage and

overload protection, hysteretic thermal protection,

soft-start, and safe auto-restart after the removal

of any fault condition. Burst mode operation and

very low device consumption help to meet the

standby energy saving regulations.

Advance frequency jittering reduces EMI filter

costs. Brownout function protects the switch

mode power supply when the rectified input

voltage level is below the normal minimum level

specified for the system. The high voltage startup

circuit is embedded in the device.

Figure 1.

DC input high voltage

wide range

DRAIN

GND

SDIP10

DRAIN

VDD

VIPER37

DRAIN DRAIN DRAIN

CONT

Typical topology

Packaging

Tube

VIPER37

DC Output voltage

www.st.com

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