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

STMicroelectronics VN920-12-E

Name: VN920-12-E
Brand: STMicroelectronics
SKU: VN920-12-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN920-12-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

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

Datasheet:: VN920-12-E.pdf

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

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Product details

Overview

VN920-12-E from STMicroelectronics is a single-channel high-side driver IC designed for automotive and industrial load switching, featuring 16 mΩ R_DS(on), 30 A continuous output current, 36 V maximum supply voltage, and integrated proportional current sense. It operates in VIPower™ M0-3 technology and is used to drive grounded loads such as solenoids, lamps, and motors in 12 V battery systems.

For engineers reviewing the VN920-12-E datasheet, VN920-12-E pinout, VN920-12-E application, or VN920-12-E equivalent, key selection criteria include its thermal shutdown behavior, short-circuit current limit (45 A typ.), reverse-battery protection capability, and ISO 7637-2 transient compliance - all critical for robust 12 V automotive power distribution design.

Technical Context

The VN920-12-E integrates a high-voltage DMOS power stage with CMOS-compatible logic input, enabling direct interfacing with microcontrollers. Its active V_CC clamp (41–55 V) and overvoltage shutdown (36 V threshold) protect against load dump transients per ISO 7637-2 Pulse 5A.

Proportional analog current sensing (K = 4400 ±8% at 10 A) delivers real-time I_OUT/I_SENSE feedback with 500 µs delay, while loss-of-ground detection and automatic restart after thermal shutdown ensure fail-safe operation in safety-critical subsystems.

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(on)	16 mΩ @ I_OUT = 10 A, T_j = 25°C - enables low conduction loss and <1 W dissipation at 25 A.
I_OUT (continuous)	30 A - supports high-power solenoid and motor control without external heatsinking in typical 12 V chassis applications.
V_CC max	36 V - compatible with 24 V nominal systems and withstands sustained overvoltage up to 36 V before shutdown.
Current sense ratio K	4400 ±8% @ I_OUT = 10 A - provides accurate, temperature-stable load monitoring for diagnostics and closed-loop control.
Thermal shutdown	150–200°C junction range with 135°C reset hysteresis - prevents permanent damage during overload and enables safe auto-recovery.
ISO 7637-2 compliance	Pulse 1, 2a, 3a/b, 4, 5A passed - ensures reliable operation in automotive environments with battery transients up to +86.5 V / 400 ms.
Reverse battery protection	Supported via external GND network (RGND or DGND) - protects internal circuitry when vehicle battery is connected backward.

Pinout & Package

The VN920-12-E is housed in a PENTAWATT in-line package (vertical lead orientation), with 5 terminals: INPUT, OUTPUT, GND, V_CC, and CURRENT SENSE. The package features isolated creepage/clearance for high-voltage reliability and ECOPACK® RoHS-compliant construction.

Pin/Terminal	Circuit Role	Design Meaning
INPUT	CMOS logic control input	Accepts 3.25 V high / 1.25 V low thresholds; includes 0.5 V hysteresis and ±1 mA clamp for ESD and transient immunity.
OUTPUT	High-side switched output	Drives load between this pin and ground; supports inductive loads with active demag clamp (V_CC − 48 V).
GND	Power and signal reference	Must be connected to system ground; device disables if disconnected (loss-of-ground protection).
V_CC	Main supply input	Supplies internal logic and power stage; includes active clamp diode and undervoltage/overvoltage shutdown (4–5.5 V / 36 V).
CURRENT SENSE	Analog current monitor output	Delivers I_SENSE = I_OUT/K; open-drain capable up to 4 V, with 400 Ω impedance during overtemperature fault.

Key Features

Feature	Design Value
Proportional current sense	4400 ±8% scaling factor with <500 µs response - enables precise real-time load monitoring without shunt resistors.
Short-circuit current limitation	45 A typical DC limit with thermal foldback - sustains fault conditions without latch-up while preserving MOSFET integrity.
Loss-of-ground detection	Automatic shutdown within microseconds if GND pin disconnects - prevents uncontrolled output state in wiring faults.
Very low standby power	10 µA max supply current in off-state - minimizes parasitic drain on vehicle battery during sleep mode.
Integrated V_CC clamp diode	Forward drop ≤0.6 V @ 2 A, 150°C - suppresses negative transients and enables bidirectional energy recirculation.

Applications

Automotive Body Control Module (BCM)

Industrial PLC Output Stage

Use Scenario: Controlling door locks, trunk latches, and interior lighting in 12 V vehicle architectures.

IC Role / Device Role / Timing Role: High-side switch providing galvanically isolated load activation with diagnostic feedback via current sense.

Use Value: Eliminates need for external current-sense amplifiers and discrete protection components, reducing BOM count by ≥4 parts per channel.

Use Scenario: Driving 24 V solenoid valves and contactors in factory automation cabinets.

IC Role / Device Role / Timing Role: Robust output driver with built-in overtemperature and short-circuit recovery for unattended operation.

Use Value: Enables predictive maintenance through analog I_SENSE trend analysis, improving system uptime versus binary fault-flag alternatives.

Truck & Bus Load Dump Protection

Off-Highway Equipment Power Distribution

Use Scenario: Protecting cab electronics during alternator load dump events exceeding +80 V.

IC Role / Device Role / Timing Role: Primary overvoltage clamp and shutdown element compliant with ISO 7637-2 Pulse 5A.

Use Value: Withstands 400 ms at +86.5 V without derating, eliminating need for external TVS diodes in many designs.

Use Scenario: Managing hydraulic pump and steering assist actuators in agricultural and construction machinery.

IC Role / Device Role / Timing Role: High-current, reverse-battery tolerant switch for harsh-environment 24 V systems.

Use Value: Supports dual-protection schemes (RGND resistor or DGND diode) validated per ST application note AN4225.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
INFINEON BTS716G	Lower R_DS(on) (10 mΩ), no integrated current sense, requires external sense resistor	Lacks analog I_SENSE output; suited for cost-sensitive designs where diagnostics are handled externally	Choose when absolute lowest conduction loss is prioritized over integrated diagnostics
NXP MC33883	Higher V_CC rating (40 V), but only 10 A continuous output and no reverse-battery protection network guidance	Targeted at lower-current motor gate drives; lacks ST's documented GND protection schematics	Prefer when operating above 36 V or requiring higher peak surge tolerance, accepting reduced current capacity

Compared with VN920-12-E, BTS716G offers lower on-resistance but removes integrated current sensing-increasing system-level component count-while MC33883 extends voltage headroom at the expense of continuous current rating and diagnostic completeness.

Availability

VN920-12-E is available at Aetrix Electronics and suitable for automotive body control, industrial PLC output stages, truck load dump protection, and off-highway equipment power distribution requiring stable component supply across extended temperature and transient stress conditions.

Supply support for VN920-12-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, Switzerland, specializing in automotive, industrial, and power management ICs with vertical manufacturing and AEC-Q100 qualification expertise.

The VN920-12-E belongs to ST's VIPower™ high-side driver product line, engineered specifically for robust, diagnostic-capable load switching in 12 V/24 V automotive and heavy-duty industrial environments.

FAQ

What is the recommended external resistor value for reverse-battery protection using the RGND method?

For the RGND solution, ST specifies RGND ≤ 600 mV / I_S(on)max. For a single VN920-12-E (I_S(on)max ≈ 30 A), RGND ≤ 20 mΩ. However, due to power dissipation (P = V²/R), a practical value is 100–500 mΩ with appropriate wattage rating. If multiple drivers share one RGND, sum their I_S(on)max values before calculating.

Does the VN920-12-E require an external pull-up on the CURRENT SENSE pin?

No external pull-up is required. The CURRENT SENSE pin is an open-collector output with internal 400 Ω impedance during overtemperature and operates into a standard 3.9 kΩ sense resistor to ground. A 10 kΩ load resistor yields ~4 V full-scale at 10 A, matching MCU ADC input ranges without additional biasing.

How does the device behave during a short-to-VCC fault condition?

During short-to-VCC, the VN920-12-E enters immediate shutdown: the OUTPUT pin is forced low, the CURRENT SENSE pin outputs 0 A equivalent (logic low), and the device remains latched off until V_CC drops below the undervoltage threshold (≤5.5 V) and resets. This behavior is confirmed in Table 11's truth table under "Short circuit to VCC".

Can the VN920-12-E drive inductive loads without external flyback components?

Yes - it includes an active demagnetization clamp that limits V_OUT to V_CC − 48 V during turn-off of inductive loads. This eliminates need for external freewheeling diodes in most 12 V applications. However, for high-energy inductors (e.g., >100 mH), ST recommends verifying clamp energy handling per Figure 19's application schematic and AN4225 guidelines.

VN920-12-E 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

VN920-12-E FAQ

1.How can I place an order for VN920-12-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN920-12-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 VN920-12-E reliable?

The price and inventory of VN920-12-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN920-12-E is usually 5 days.

3.What payment methods are accepted for VN920-12-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN920-12-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN920-12-E?

VN920-12-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN920-12-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 VN920-12-E?

For technical support, including VN920-12-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN920-12-E requirements.

6.How does Aetrix verify that VN920-12-E is sourced from the original manufacturer or authorized distributors?

All VN920-12-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 VN920-12-E meets industry standards.

7.What is the process for return or replacement of VN920-12-E?

All VN920-12-E units undergo pre-shipment inspection (PSI). If there is an issue with VN920-12-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 VN920-12-E part is unused and in its original packaging.

Return procedure for VN920-12-E:

1.Submit a request within 90 days.

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

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