VIPER26 Series

Fixed frequency VIPer plus family

Catalog

Fixed frequency VIPer plus family

Part	Fault Protection	Frequency - Switching	Output Isolation	Supplier Device Package	Mounting Type	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Breakdown	Topology	Power (Watts)	Duty Cycle	Package / Case	Package / Case [x]	Package / Case [y]	Package / Case	Package / Case
STMicroelectronics VIPER26LN
STMicroelectronics VIPER26HDTR
STMicroelectronics VIPER26HDTR
STMicroelectronics VIPER26LN
STMicroelectronics VIPER26HD
STMicroelectronics VIPER26HN
STMicroelectronics VIPER26LDTR
STMicroelectronics VIPER26LDTR
STMicroelectronics VIPER26LD
STMicroelectronics VIPER26HN
STMicroelectronics VIPER26LD
STMicroelectronics VIPER26HN
STMicroelectronics VIPER26LDTR	Current Limiting, Over Temperature	60 kHz	Either	16-SO	Surface Mount	23.5 V	11.5 V	150 °C	-40 °C	800 V	Flyback	20 W	70 %	16-SOIC	0.154 in	3.9 mm
STMicroelectronics VIPER26LDTR
STMicroelectronics VIPER26LDTR
STMicroelectronics VIPER26HDTR	Current Limiting, Over Temperature	115 kHz	Either	16-SO	Surface Mount	23.5 V	11.5 V	150 °C	-40 °C	800 V	Flyback	20 W	70 %	16-SOIC	0.154 in	3.9 mm
STMicroelectronics VIPER26LD
STMicroelectronics VIPER26HD	Current Limiting, Over Temperature	115 kHz	Either	16-SO	Surface Mount	23.5 V	11.5 V	150 °C	-40 °C	800 V	Flyback	20 W	70 %	16-SOIC	0.154 in	3.9 mm
STMicroelectronics VIPER26LN
STMicroelectronics VIPER26LN
STMicroelectronics VIPER26HN	Current Limiting, Over Temperature	115 kHz	Either	7-DIP	Through Hole	23.5 V	11.5 V	150 °C	-40 °C	800 V	Flyback	20 W	70 %	8-DIP			7.62 mm	0.3 in, 7 Leads

Catalog

Fixed frequency VIPer plus family

Key Features

• Minimized system input power consumption:

- Less than 30 mW @ 230 VACin no-load condition

- Less than 400 mW @ 230 VACwith 250 mW load

• Jittered switching frequency to reduce the EMI filter cost:

- 60 kHz ±4 kHz (L type)

- 115 kHz ±8 kHz (H type)

Description

The VIPER26 device is a smart high voltage converter that integrates an 800 V avalanche-rugged power MOSFET with PWM current mode control. The power MOSFET with 800 V breakdown voltage allows an extended input voltage range to be applied, as well as the size of the DRAIN snubber circuit to be reduced. This IC meets the most stringent energy-saving standards with very low consumption and burst mode operation under light load. The design of flyback, buck and buck boost converters is supported. The integrated HV startup, sense-FET, error amplifier and oscillator with jitter allow complete application designs with a minimum number of components.