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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > AC DC Converters, Offline Switches

STMicroelectronics VIPER100-22-E

Name: VIPER100-22-E
Brand: STMicroelectronics
SKU: VIPER100-22-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VIPER100-22-E

Manufacturer:: STMicroelectronics

Category:: AC DC Converters, Offline Switches

Package:: Pentawatt-5 HV (Bent and Staggered Leads)

Datasheet:: VIPER100-22-E.pdf

Description:: IC OFFLIN CONV FLBACK 5PENTAWATT

Quantity:: RFQ Add To RFQ list

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Inventory:2,982

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Product details

Overview

VIPER100-22-E from STMicroelectronics is a high-voltage, current-mode PWM controller with integrated 620 V/3 A vertical power MOSFET, designed for primary-side switching in offline AC-DC SMPS. It delivers up to 100 W in single-range or doubler configurations, features adjustable 90–110 kHz switching frequency, internal 13 V VDD regulation, and burst-mode operation enabling <1 W standby power per Blue Angel norm.

For engineers reviewing the VIPER100-22-E datasheet, VIPER100-22-E pinout, VIPER100-22-E application, or VIPER100-22-E equivalent, key selection considerations include its integrated HV start-up current source, 250 ns blanking time for noise immunity, 1.7 µs disable setup time, thermal shutdown at 140–170 °C, and PENTAWATT HV (022Y) package compatibility with board-level thermal management.

Technical Context

The VIPER100-22-E implements a current-mode control topology with dual-loop regulation: an inner peak-current loop using SenseFET-based primary current sensing and an outer voltage loop via transconductance error amplifier (G_m = 1.1–1.9 mA/V). Its oscillator supports external synchronization and maintains ±1% frequency stability over VDD = 9–15 V with RT = 8.2 kΩ and CT = 2.4 nF.

Burst-mode stand-by is triggered when V_COMP falls below 0.5 V, forcing zero-duty-cycle shutdown until VDD recovers to ≥11 V; this enables sub-1 W system standby without auxiliary circuitry. Overtemperature protection activates at 140–170 °C with 40 °C hysteresis, and UVLO operates with 7.5–9 V turn-off and 11–12 V reset thresholds.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	620 V - Withstands full-wave rectified 230 V_AC mains surges without snubber
I_D (max)	3 A - Supports up to 100 W output in doubler configuration at 230 V_AC
R_DS(on)	2.5 Ω typ @ T_j = 100 °C - Enables efficient conduction with low thermal rise in PENTAWATT HV package
F_SW	90–110 kHz - Adjustable via external R_T/C_T; stable across VDD 9–15 V for robust line regulation
t_b	250–360 ns - Integrated blanking window suppresses false triggering from transformer leakage spikes
T_tsd	140–170 °C - Thermal shutdown threshold with 40 °C hysteresis prevents latch-up during overload
I_DD1	15.5 mA @ 100 kHz - Low operating supply current reduces auxiliary winding burden

Pinout & Package

Packaged in PENTAWATT HV (022Y), a 5-pin, high-voltage-optimized through-hole package with isolated drain pad for enhanced thermal dissipation and creepage clearance.

Pin/Terminal	Circuit Role	Design Meaning
DRAIN	Integrated Power MOSFET Drain	High-side switch node; supplies internal HV start-up current during boot-up; handles unclamped inductive energy
SOURCE	Power MOSFET Source	Primary-side ground reference; connects to transformer primary return and current-sense resistor
VDD	Control Supply & Error Amplifier Reference	Provides 13 V regulated bias; enables primary/secondary regulation; UVLO monitoring point (7.5–9 V off / 11–12 V on)
COMP	Error Amplifier Output & Shutdown Control	Transconductance output (1.1–1.9 mA/V); sinks/sourcing ±600 µA; <0.5 V forces burst-mode shutdown
OSC	Oscillator Timing & Sync Input	Accepts external R_T/C_T for frequency setting; supports external clock sync with ≤500 ns pulses

Key Features

Feature	Design Value
Integrated HV Start-up Current Source	Eliminates external start-up resistor; draws bias directly from DRAIN pin during boot-up
Adjustable Burst-Mode Standby	Automatically enters zero-duty-cycle mode when load drops below ~0.5 W, meeting Blue Angel <1 W requirement
Internal 13 V VDD Regulator	Maintains stable control supply independent of transformer auxiliary winding design
250 ns Propagation Delay + Blanking	Prevents false turn-off from di/dt-induced noise on primary current sense path
Thermal Protection with Hysteresis	Shuts down at 140–170 °C and re-enables only after 40 °C cooldown, preventing thermal cycling

Applications

Smart Home Power Adapters

Industrial PLC Power Supplies

Use Scenario: Compact 12 V/2 A wall adapter for battery-powered smart sensors with strict no-load consumption limits.

IC Role / Device Role / Timing Role: Primary-side PWM controller with integrated MOSFET; regulates output via optocoupler feedback while maintaining burst-mode at <10 mW load.

Use Value: Eliminates external HV start-up resistor and snubber network, reducing BOM count by ≥4 components versus discrete solutions.

Use Scenario: DIN-rail mounted 24 V/3 A auxiliary supply for programmable logic controllers operating in wide ambient temperature ranges.

IC Role / Device Role / Timing Role: High-reliability primary-side controller with thermal hysteresis and 620 V breakdown margin for industrial surge immunity.

Use Value: Sustains continuous operation at T_c = 100 °C with R_thJC = 1.4 °C/W, enabling convection-cooled designs without heatsinks.

White Goods Auxiliary PSUs

LED Driver Standby Circuits

Use Scenario: 5 V/1 A auxiliary supply for microcontroller and display subsystems in washing machines with EMI-sensitive motor drives.

IC Role / Device Role / Timing Role: Current-mode controller with 90–110 kHz switching; uses COMP pin for opto-coupled regulation and soft-start via external capacitor.

Use Value: Achieves <300 mV_pp output ripple in burst mode due to low-frequency switching and large output capacitance retention.

Use Scenario: Always-on 3.3 V rail for BLE radio and sensor wake-up circuitry in smart LED luminaires.

IC Role / Device Role / Timing Role: Ultra-low standby controller; leverages internal 2 mA start-up current and 0.5 V COMP threshold to sustain <0.8 W total system draw.

Use Value: Meets IEC 62301 Ed.2 Class F (≤1 W) without auxiliary bias winding or external LDO.

Equivalent & Alternatives

The following parts are listed as comparable options for similar SMPS primary-side controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE2QS03G	Fixed 65 kHz frequency; no integrated MOSFET; requires external 600 V superjunction FET	Higher component count; needs separate gate driver and start-up network	Preferred where higher efficiency >90% at light load is required via variable frequency control
LNK306P	700 V breakdown; 0.65 A current rating; smaller SO-8 package; no external frequency adjustment	Limited to ≤15 W output; lacks burst-mode precision and thermal hysteresis	Selected for cost-sensitive, low-power (<10 W) consumer adapters with minimal footprint

Compared with ICE2QS03G and LNK306P, VIPER100-22-E uniquely integrates both HV MOSFET and adjustable burst-mode control in one PENTAWATT HV package-enabling 100 W designs with fewer external components and certified <1 W standby compliance without design trade-offs in thermal robustness or regulation flexibility.

Availability

VIPER100-22-E is available at Aetrix Electronics and suitable for smart home adapters, industrial PLC power supplies, white goods auxiliary PSUs, and LED driver standby circuits requiring stable component supply and long-term lifecycle support.

Supply support for VIPER100-22-E includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in power management, analog, and microcontroller technologies for industrial, automotive, and consumer markets.

The VIPer™ product line delivers highly integrated AC-DC primary controllers targeting cost-sensitive, space-constrained offline power supplies-designed to reduce bill-of-materials, simplify layout, and meet stringent global energy efficiency standards.

FAQ

What is the maximum continuous output power achievable with VIPER100-22-E?

The VIPER100-22-E supports up to 100 W in single-range or doubler-configured offline power supplies at 230 V_AC, and 50 W in universal-input (85–265 V_AC) wide-range operation. This is enabled by its 620 V/3 A integrated MOSFET, 2.5 Ω R_DS(on), and thermal design optimized for PENTAWATT HV package with R_thJC = 1.4 °C/W.

How does the burst-mode operation reduce standby power consumption?

Burst-mode is triggered when V_COMP falls below 0.5 V, forcing zero-duty-cycle shutdown until VDD recovers to ≥11 V. This eliminates switching losses during light/no-load conditions, allowing total system standby power to remain below 1 W-meeting Blue Angel requirements without external circuitry or firmware intervention.

Can VIPER100-22-E be used in secondary-side regulated topologies?

Yes. The VDD pin accepts externally supplied 8.5–12.5 V from transformer auxiliary windings, and the COMP pin functions as a constant-current sink for optocoupler feedback. In secondary regulation, the transconductance amplifier output clamps high, enabling direct opto-coupler interface without additional biasing components.

What is the purpose of the 250 ns blanking time and 1.7 µs disable setup time?

The 250 ns blanking time prevents false turn-off from parasitic current spikes during MOSFET turn-on (e.g., transformer leakage or diode reverse recovery). The 1.7 µs disable setup time ensures reliable shutdown sequencing-guaranteeing the power switch turns off before internal logic resets during fault or burst-mode entry.

VIPER100-22-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: VIPER™

Package/Case:: Pentawatt-5 HV (Bent and Staggered Leads)

Packaging:: Tube

Product Status:: Obsolete

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 620V

Topology:: Flyback

Voltage - Start Up:: 11 V

Voltage - Supply (Vcc/Vdd):: 8V ~ 15V

Duty Cycle:: -

Frequency - Switching:: Up to 200kHz

Power (Watts):: 100 W

Fault Protection:: Current Limiting, Over Temperature

Control Features:: EN, Frequency Control, Soft Start

Operating Temperature:: -

Grade:: -

Qualification:: -

Supplier Device Package:: 5-PENTAWATT

Mounting Type:: Surface Mount

VIPER100-22-E FAQ

1.How can I place an order for VIPER100-22-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VIPER100-22-E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for VIPER100-22-E reliable?

The price and inventory of VIPER100-22-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VIPER100-22-E is usually 5 days.

3.What payment methods are accepted for VIPER100-22-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VIPER100-22-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VIPER100-22-E?

VIPER100-22-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VIPER100-22-E order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for VIPER100-22-E?

For technical support, including VIPER100-22-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VIPER100-22-E requirements.

6.How does Aetrix verify that VIPER100-22-E is sourced from the original manufacturer or authorized distributors?

All VIPER100-22-E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that VIPER100-22-E meets industry standards.

7.What is the process for return or replacement of VIPER100-22-E?

All VIPER100-22-E units undergo pre-shipment inspection (PSI). If there is an issue with VIPER100-22-E, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The VIPER100-22-E part is unused and in its original packaging.

Return procedure for VIPER100-22-E:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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