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STMicroelectronics VIPER22ASTR-E — Power Management (PMIC / Gate Driver)

STMicroelectronics VIPER22ASTR-E offline flyback, 7 W, 730 V

MPNVIPER22ASTR-E
Active

STMicroelectronics VIPER™ offline flyback switcher, VIPER22ASTR-E, 7 W, 730 V breakdown, 60 kHz, 8-SOIC, tape-and-reel.

$1.6400Ref. price · indicative, final on quote
STMicroelectronics VIPER22ASTR-E datasheet (PDF)
Packaging8-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
SeriesVIPER™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

VIPER22ASTR-E specifications
ParameterValue
SeriesVIPER™
MountingSurface Mount
Voltage - start up14.5 V
Voltage - breakdown730V
Voltage - supply (Vcc (Vdd))8V ~ 38V
Power (Watts)7 W
Frequency60kHz
Operating temperature-40°C ~ 150°C (TC)
PackageTape & Reel (TR) Cut Tape (CT)
TopologyFlyback
Case8-SOIC (0.154\", 3.90mm Width)
Fault protectionCurrent Limiting, Over Temperature, Over Voltage
Output isolationIsolated
Internal switchYes

Product details

Active production — 7 W flyback with 730 V avalanche-rugged MOSFET

The VIPER22ASTR-E is an active-production offline flyback switcher from STMicroelectronics' VIPER™ series, integrating a 730 V avalanche-rugged power MOSFET and a PWM controller in a single 8-SOIC package. Rated for 7 W output in isolated flyback topologies, it switches at 60 kHz and operates from a Vcc supply of 8 V to 38 V with a 14.5 V startup threshold.

Protection set and temperature grade

The -40°C to 150°C (TC) operating range qualifies it for industrial and outdoor power supplies where ambient temperatures push past 85°C.

ROHS3 compliant, with no halogenated flame retardants in the molding compound per the STMicro compliance declaration.

Frequently asked questions

What is the closest functional second-source to VIPER22ASTR-E?

The VIPER22AS-E uses the same VIPER22 die and identical ratings (7 W, 730 V, 60 kHz) but ships in tube packaging instead of tape-and-reel — the electrical and thermal performance are identical.