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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Distribution Switches, Load Drivers

STMicroelectronics VN920(012Y)

Name: VN920(012Y)
Brand: STMicroelectronics
SKU: VN920(012Y)
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN920(012Y)

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: Pentawatt-5 (Straight Leads, Staggered Depth)

Datasheet:: VN920(012Y).pdf

Description:: IC PWR DRVR N-CH 1:1 5PENTAWATT

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Product details

Overview

VN920(012Y) from STMicroelectronics is a single-channel high-side solid-state relay (HSD) designed for driving ground-referenced loads in automotive and industrial power distribution systems. It features 16 mΩ R_DS(on), 30 A continuous output current, 36 V V_CC rating, integrated proportional current sense (K ≈ 4400), and active protection against overvoltage (36 V shutdown), undervoltage (4 V threshold), overtemperature (150 °C trip), and short-circuit conditions. Used in body control modules for headlight or fan control.

For engineers reviewing the VN920(012Y) datasheet, VN920(012Y) pinout, VN920(012Y) application, or VN920(012Y) equivalent, key selection criteria include its CMOS-compatible input logic, analog current sense accuracy (±10% ratio drift over −40 °C to +150 °C), thermal shutdown hysteresis (15 °C), reverse battery protection capability, and ISO 7637-2 pulse level III transient immunity.

Technical Context

This device implements a monolithic VIPower M0-3 process high-side switch with integrated current sense amplifier, voltage clamping circuitry, and thermal shutdown comparator with automatic restart. Its protection architecture includes independent detection paths for overvoltage (V_OV = 36 V), undervoltage (V_USD = 4 V typ), and overtemperature (T_TSD = 150 °C), each triggering hard turn-off without latch-up.

The analog current sense output delivers I_SENSE = I_OUT/K where K varies from 3300 to 6000 depending on load current and temperature; at 10 A and 25 °C, K = 4400 typ. Output voltage drop is limited to 50 mV at 1 A across full temperature range, ensuring minimal conduction loss during low-current operation.

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(on)	16 mΩ max at I_OUT = 10 A, T_j = 25 °C - enables <1.6 W conduction loss at 30 A
I_OUT Continuous	30 A - supports high-power solenoids, lamps, and motors without external heatsink under defined PCB copper area
V_CC Range	5.5 V to 36 V - compatible with 12 V and 24 V automotive battery systems including cold-crank and load-dump transients
Current Sense Ratio K	4400 typ at I_OUT = 10 A, V_SENSE = 4 V - provides 2.27 mA sense current per ampere of load current
Thermal Shutdown Threshold	150 °C ±25 °C - triggers immediate turn-off and automatic restart after 135 °C reset, preventing permanent junction damage
ISO 7637-2 Pulse Immunity	Level III compliance - withstands −100 V/0.1 µs (pulse 3a) and +100 V/0.1 µs (pulse 3b) without functional interruption
Reverse Battery Protection	Withstands −0.3 V V_CC and −200 mA I_GND - enables safe operation in reversed-battery fault scenarios when used with external ground network

Pinout & Package

VN920(012Y) uses the PENTAWATT package (vertical mounting, 5-pin), optimized for high-current automotive power switching with low thermal resistance (R_thj-case = 1.3 °C/W).

Pin/Terminal	Circuit Role	Design Meaning
1 - V_CC	Power supply input	Accepts 5.5–36 V DC; includes active clamp limiting to 41 V during transients
2 - GND	Ground reference	Device substrate return; disconnecting causes automatic shutdown to prevent floating-load failure
3 - INPUT	Digital control input	CMOS-compatible (V_IL = 1.25 V, V_IH = 3.25 V); includes 0.5 V hysteresis for noise immunity
4 - CSENSE	Analog current sense output	Sinks proportional current I_SENSE = I_OUT/K; requires external pull-up resistor to generate voltage signal
5 - OUTPUT	High-side switched output	Drives load between this pin and ground; includes V_demag clamp (V_CC−41 V) for inductive kickback suppression

Key Features

Feature	Design Value
Proportional current sense	Accuracy ±10% over −40 °C to +150 °C enables precise load monitoring without shunt resistor
Loss-of-ground detection	Automatic shutdown if GND pin disconnects - prevents uncontrolled load activation in wiring fault conditions
Very low standby power	25 µA max supply current in off-state - critical for always-on automotive modules meeting ISO 8820 leakage limits
Active overvoltage clamp	Clamps V_CC to 41 V at 20 mA - protects internal circuitry during ISO 7637 load dump without external TVS
Short-circuit current limitation	DC limit of 30–75 A depending on V_CC and temperature - sustains fault condition until thermal shutdown activates

Applications

Automotive Headlamp Control

Industrial Solenoid Driver

Use Scenario: PWM-controlled high-beam headlamp switching in body control module with real-time current feedback.

IC Role / Device Role / Timing Role: High-side power switch with integrated current sense and thermal protection; replaces mechanical relay and discrete sense circuit.

Use Value: Eliminates contact wear, enables diagnostics via I_SENSE, and survives 100,000+ cycles without degradation - unlike electromechanical relays.

Use Scenario: Driving 24 V DC solenoid valves in factory automation PLC output stage with short-circuit resilience.

IC Role / Device Role / Timing Role: Fault-tolerant high-side driver with automatic restart after overcurrent; handles inductive flyback via V_demag clamp.

Use Value: Reduces system-level BOM by integrating current sense, clamp, and thermal shutdown - no external components needed for basic protection.

Engine Cooling Fan Control

Truck ABS Modulator Power Stage

Use Scenario: Variable-speed radiator fan control using PWM input, with load current monitoring for stall detection.

IC Role / Device Role / Timing Role: High-current HSD with accurate analog current feedback (K = 4400 typ) and fast 50 µs turn-on/off timing.

Use Value: Enables closed-loop fan speed control using sensed current as proxy for torque/load - improves thermal management efficiency.

Use Scenario: Power switching for ABS hydraulic modulator solenoids requiring high reliability and ISO 16750-2 compliance.

IC Role / Device Role / Timing Role: Automotive-qualified high-side driver with Level III ISO 7637-2 immunity and −40 °C to +150 °C operation.

Use Value: Meets stringent automotive safety requirements without external transient suppressors - simplifies layout and reduces footprint.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side driver applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STVN920SO	SO-16L package (16-pin), lower R_DS(on) not specified; higher R_thj-amb (65 °C/W vs 61.3 °C/W)	Surface-mount assembly; suited for space-constrained PCBs but requires larger copper pour for same thermal performance	Select when board space is constrained and reflow compatibility is required; derate I_OUT to 20 A for equivalent thermal margin.
TPS27081A	TI device: 12 V max V_CC, 8 mΩ R_DS(on), no integrated current sense, 1.2 A max I_OUT	Low-voltage logic-level switching only; lacks automotive transient immunity and overtemperature auto-restart	Use only in non-automotive 12 V systems where current sense and robust protection are unnecessary.

Compared with VN920(012Y), VN920SO trades thermal performance for SMT manufacturability and adds pin count for enhanced diagnostics, while TPS27081A offers lower on-resistance but sacrifices automotive-grade protection, current sensing, and voltage range - making it unsuitable for direct replacement in vehicle power distribution.

Availability

VN920(012Y) is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC output stages, engine cooling systems, and commercial vehicle ABS power stages requiring stable component supply and long-term lifecycle support.

Supply support for VN920(012Y) 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, Switzerland, specializing in automotive, industrial, and power management ICs with vertical manufacturing and AEC-Q100 qualification expertise.

VN920(012Y) belongs to ST's VIPower family of intelligent power switches, engineered specifically for robust high-side load control in harsh automotive environments with integrated diagnostics and protection.

FAQ

What is the maximum continuous output current for VN920(012Y) under standard PCB conditions?

The VN920(012Y) supports 30 A continuous output current when mounted on a standard single-sided FR-4 board with 0.5 cm² of 35 µm-thick copper (per thermal data sheet, R_thj-amb = 61.3 °C/W). At ambient temperatures above 85 °C or with reduced copper area, derating is required to maintain junction temperature below 150 °C.

Does VN920(012Y) require an external current sense resistor?

No. VN920(012Y) provides a proportional current sense output (CSENSE pin) that sinks I_SENSE = I_OUT/K, eliminating the need for a series shunt resistor. An external pull-up resistor (e.g., 3.9 kΩ to V_CC) converts the current into a measurable voltage; typical V_SENSE is 4 V at 10 A load.

How does the device respond to a disconnected ground pin?

VN920(012Y) detects loss of ground (GND pin disconnection) and immediately disables the output stage, forcing the OUTPUT pin into high-impedance state. This behavior is confirmed in the truth table and protection section - it prevents uncontrolled load activation during wiring faults.

Can VN920(012Y) be used in 24 V truck applications with load dump transients?

Yes. VN920(012Y) meets ISO 7637-2 Pulse 5 (load dump) up to +86.5 V for 400 ms when used with an external transient voltage suppressor (D_ld). Its internal V_CC clamp activates at 41 V, so D_ld must be selected to clamp before exceeding absolute maximum rating of 41 V - typically a 36 V TVS diode.

VN920(012Y) Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: Pentawatt-5 (Straight Leads, Staggered Depth)

Series:: VIPower™

Packaging:: Tube

Product Status:: Obsolete

Switch Type:: General Purpose

Number of Outputs:: 1

Ratio - Input:Output:: 1:1

Output Configuration:: High Side

Output Type:: N-Channel

Interface:: On/Off

Voltage - Load:: 5.5V ~ 36V

Voltage - Supply (Vcc/Vdd):: Not Required

Current - Output (Max):: 30A

Rds On (Typ):: 16mOhm (Max)

Input Type:: Non-Inverting

Features:: Auto Restart

Fault Protection:: Current Limiting (Fixed), Over Temperature, Over Voltage

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 5-PENTAWATT

VN920(012Y) FAQ

1.How can I place an order for VN920(012Y) through Aetrix?

Please submit a Request for Quotation (RFQ) for VN920(012Y) 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 VN920(012Y) reliable?

The price and inventory of VN920(012Y) are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN920(012Y) is usually 5 days.

3.What payment methods are accepted for VN920(012Y)?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN920(012Y) transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN920(012Y)?

VN920(012Y) orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN920(012Y) 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 VN920(012Y)?

For technical support, including VN920(012Y) datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN920(012Y) requirements.

6.How does Aetrix verify that VN920(012Y) is sourced from the original manufacturer or authorized distributors?

All VN920(012Y) 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 VN920(012Y) meets industry standards.

7.What is the process for return or replacement of VN920(012Y)?

All VN920(012Y) units undergo pre-shipment inspection (PSI). If there is an issue with VN920(012Y), 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 VN920(012Y) part is unused and in its original packaging.

Return procedure for VN920(012Y):

1.Submit a request within 90 days.

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

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