VIPER11

Energy saving off-line high voltage converter

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The device is a high voltage converter smartly integrating an 800 V avalanche-rugged power MOSFET with PWM current mode control. The power MOSFET with 800 V breakdown voltage allows the 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 as it has very low consumption and operates in pulse frequency modulation 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 a complete application to be designed with the minimum number of components.

Key Features

800 V avalanche-rugged power MOSFET allowing ultra wide VAC input range to be covered
Embedded HV startup and sense-FET
Current mode PWM controller
Drain current limit protection
- 480 mA (VIPER114)
- 590 mA (VIPER115)
Wide supply voltage range: 4.5 V to 30 V
Minimized system input power consumption:
- Less than 10 mW at 230 V_AC in no-load condition
- Less than 400 mW at 230 V_AC with 250 mW load
Jittered switching frequency reduces the EMI filter cost:
- 30 kHz ± 7% (type X)
- 60 kHz ± 7% (type L)
Embedded E/A with 1.2 V reference
Protections with automatic restart: overload/short-circuit (OLP), line or output OVP, max. duty cycle counter, VCC clamp
Pulse-skip protection to prevent flux- runaway
Embedded thermal shutdown
Built-in soft-start for improved system reliability

Resources

Technical Documentation

Product Specifications

	Description	Version	Size
	DS11873: Energy saving off-line high voltage converter	2.0	1 MB

Application Notes

	Description	Version	Size
	AN4564: Is a positive power supply mandatory for my application, or could a negative output work also?	1.0	384 KB

HW Model, CAD Libraries & SVD

SPICE models

	Description	Version	Size
	VIPer11 PSpice model	1.0	275 KB

Publications and Collaterals

Brochures

Description	Version	Size
Brochure Power management guide	09.2017	3 MB
Electric vehicle (EV) ecosystem	1.1	1 MB
VIPerPlus - Your SMPS design deserves a Plus	05.2018	1 MB
VIPerPlus evaluation boards	05.2018	1002 KB

Tools and Software

Evaluation Tools

Solution Evaluation Tools

Part Number	Manufacturer	Description
STEVAL-ISA195V1	ST	5 V / 0.36 A buck converter using VIPerPlus ? VIPer11
STEVAL-ISA196V1	ST	5 V / 1.2 A non-isolated flyback converter using VIPerPlus?VIPer114LS
STEVAL-ISA197V1	ST	12 V, 7.8 W isolated flyback converter based on VIPer114LS

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Sample & Buy

Part Number	Package	Packing Type	Marketing Status	Unit Price (US$) *	Quantity	RDS(on) (Ω) (max)	Transistor Breakdown Voltage (V) (min)	Drain Current (A) (nom)	ECCN (US)	Country of Origin	More info	Order from ST	Order from Distributors
VIPER115LSTR	SSOP 10	Tape And Reel	Active : Product is in volume production	0.381	1000	17	800	0.59	EAR99	MOROCCO	MORE INFO	Free Sample Add to cart	DISTRIBUTOR AVAILABILITY
VIPER115XSTR	SSOP 10	Tape And Reel	Active : Product is in volume production	0.381	1000	17	800	0.59	EAR99	MOROCCO	MORE INFO	Free Sample Add to cart	DISTRIBUTOR AVAILABILITY
VIPER114LSTR	SSOP 10	Tape And Reel	Active : Product is in volume production	0.381	1000	17	800	0.48	EAR99	MOROCCO	MORE INFO	Free Sample Add to cart	DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

Quality & Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade
VIPER115LSTR	Active	SSOP 10	Industrial	Ecopack2
VIPER115XSTR	Active	SSOP 10	Industrial	Ecopack2
VIPER114LSTR	Active	SSOP 10	Industrial	Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.