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

STMicroelectronics VN820-12-E

Name: VN820-12-E
Brand: STMicroelectronics
SKU: VN820-12-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN820-12-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

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

Datasheet:: VN820-12-E.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:3,701

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Product details

Overview

VN820-12-E from STMicroelectronics is a high-side power switch IC designed for automotive load driving with one side grounded. It features 40 mΩ R_DS(on), 9 A continuous output current, 36 V maximum supply voltage, and integrated open-load detection in both on- and off-states. It is used in body control modules for controlling lamps, solenoids, and actuators in 12 V vehicle electrical systems.

For engineers reviewing the VN820-12-E datasheet, VN820-12-E pinout, VN820-12-E application, or VN820-12-E equivalent, key selection criteria include thermal shutdown behavior, undervoltage/overvoltage protection thresholds, status pin diagnostic capability, and PENTAWATT package thermal performance under pulsed load conditions.

Technical Context

The VN820-12-E implements a monolithic VIPower® M0-3 high-voltage BCD process with active V_CC clamp for low-energy spike suppression. Its CMOS-compatible input accepts 3.25 V logic-high and 1.25 V logic-low signals, while the status pin provides open-drain fault reporting with 0.5 V low-level output at 1.6 mA sink current.

Protection architecture includes thermal shutdown at 150–200 °C with 135 °C reset and 7–15 °C hysteresis, current limitation of 9–20 A depending on V_CC, and dual-mode open-load detection: <70–300 mA threshold in on-state and >1.5–3.5 V threshold in off-state for detecting output short-to-V_CC.

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(on)	40 mΩ typical at I_OUT = 3 A, T_j = 25 °C - enables low conduction loss and minimal self-heating at rated load
I_OUT (continuous)	9 A - supports high-current automotive loads such as headlamp relays and fuel pump drivers
V_CC range	5.5–36 V - compatible with 12 V battery systems including cold-crank (5.5 V) and load-dump (36 V)
Undervoltage shutdown	4 V typical with 0.5 V hysteresis - prevents erratic switching during battery brownout
Thermal shutdown	150 °C trip, 135 °C reset - protects against sustained overload without requiring external thermal sensor
Open-load detection	On-state: 70–300 mA threshold; Off-state: 1.5–3.5 V threshold - enables diagnostics without external sense resistors
Status pin	Open-drain, 0.5 V max at 1.6 mA sink - directly interfaces with 3.3 V or 5 V MCU GPIO for fault flagging

Pinout & Package

The VN820-12-E uses the PENTAWATT package - a 15-pin, through-hole, thermally enhanced plastic package with exposed metal tab for PCB heat sinking.

Pin/Terminal	Circuit Role	Design Meaning
V_CC	Power supply input	Accepts 5.5–36 V; includes internal clamp diode to suppress transients up to 41 V
IN	CMOS-compatible digital input	Logic-level control: 1.25 V max low, 3.25 V min high; 1 µA leakage at low level
OUT	High-side switched output	Drives load between OUT and ground; supports reverse-battery protection when GND is disconnected
STAT	Diagnostic status output	Open-drain fault indicator: low during overtemperature, overcurrent, open-load, or undervoltage
GND	Ground reference	Return path for IN, STAT, and internal circuitry; disconnecting GND forces automatic shutdown

Key Features

Feature	Design Value
Automotive Grade AEC-Q100 qualified	Validated for -40 °C to +150 °C operation and ISO 7637-2 transient immunity (Pulse 1, 2, 3a/b, 4, 5)
Reverse battery protection	Withstands -0.3 V reverse V_CC and blocks current if GND is disconnected - eliminates need for external series diode
Active current limitation	Clamps output current to 9–20 A depending on V_CC, preventing fuse blowout during short-circuit events
Off-state open-load detection	Detects output shorted to V_CC with 1.5–3.5 V threshold - enables pre-activation diagnostics before turning on load
ECOPACK® RoHS-compliant	Lead-free termination and halogen-free molding compound - meets automotive environmental compliance requirements

Applications

Body Control Module (BCM)

Engine Management System

Use Scenario: Controlling front fog lamps and rear combination lamps in a centralized vehicle lighting controller.

IC Role / Device Role / Timing Role: High-side driver enabling PWM dimming and diagnostic feedback via STAT pin.

Use Value: Eliminates need for external current-sense resistor and discrete protection diodes, reducing BOM count by 3 components per channel.

Use Scenario: Driving fuel injector solenoids in 4-cylinder gasoline engines with sequential injection timing.

IC Role / Device Role / Timing Role: Precision high-side switch with <30 µs turn-on/turn-off delay for accurate pulse-width control.

Use Value: Supports fast switching (<100 µs total transition) while maintaining thermal stability under repeated 10 A peak loads.

Seat Motor Control Unit

Heated Rear Window Controller

Use Scenario: Bidirectional seat position adjustment using dual HSDs per motor winding.

IC Role / Device Role / Timing Role: High-side switch paired with low-side driver; monitors open-circuit faults during stall detection.

Use Value: On- and off-state open-load detection confirms mechanical binding or broken wiring before actuation.

Use Scenario: Managing 12 V heated rear window grid with timed on/off cycling and overtemperature cutoff.

IC Role / Device Role / Timing Role: Power switch with thermal shutdown and status reporting to prevent glass cracking from localized overheating.

Use Value: Integrated 150 °C thermal trip and 135 °C auto-restart enable safe, unattended operation without external thermal sensor.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
VN820-E	PENTAWATT package, tube packaging, same die and specs as VN820-12-E	No tape-and-reel option; intended for manual assembly or low-volume prototyping	Select when board space allows through-hole mounting and hand-soldering is acceptable
VN820SPTR-E	PowerSO-10 package, tape-and-reel, 40 mΩ R_DS(on), but 10 A rating and lower R_thj-amb (37 °C/W with 6 cm² copper)	Surface-mount, higher thermal efficiency, optimized for automated SMT lines	Select for high-volume production requiring reflow compatibility and improved power density

Compared with VN820-E and VN820SPTR-E, the VN820-12-E offers identical electrical performance and diagnostic features in a cost-optimized PENTAWATT through-hole package - ideal for legacy automotive platforms where board layout and assembly process favor axial leaded components.

Availability

VN820-12-E is available at Aetrix Electronics and suitable for body control modules, seat motor controllers, engine management subsystems, and heated accessory systems requiring stable component supply across automotive production lifecycles.

Supply support for VN820-12-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 capability.

The VN820 family belongs to ST's VIPower® high-side driver product line, engineered specifically for robust 12 V automotive load control with integrated diagnostics, protection, and AEC-Q100 qualification.

FAQ

What is the maximum safe operating temperature for VN820-12-E?

The VN820-12-E features internal thermal shutdown that activates at 150–200 °C junction temperature, with automatic restart at 135 °C. Its PENTAWATT package delivers 1.9 °C/W junction-to-case thermal resistance, allowing sustained 9 A operation at T_c ≤ 105 °C on a 6 cm² copper pad - verified per Table 4 and Figure 28 in the datasheet.

Does VN820-12-E require an external flyback diode for inductive loads?

No. The VN820-12-E integrates an active V_CC clamp that safely dissipates demagnetization energy from inductive loads (e.g., solenoids, relays). Per Figure 26 and Section 3.5, it supports up to 156 mJ maximum switching energy at V_CC = 13.5 V without external clamping components.

How does off-state open-load detection work on VN820-12-E?

The device applies a small test current to the OUT pin while IN = 0 V and monitors voltage rise. If OUT rises above 1.5–3.5 V (Table 11), STAT goes low indicating an open load or short-to-V_CC. This occurs within 1000 µs (t_DOL(off)) and requires no external circuitry - confirmed in Section 3.4 and Figure 25.

Can VN820-12-E drive loads directly from a 24 V truck battery system?

Yes. Its absolute maximum V_CC rating is 41 V (Table 3), and operational range extends to 36 V. It meets ISO 7637-2 Pulse 5 (load dump) requirements up to +46.5 V, making it suitable for 24 V commercial vehicle applications when used with appropriate PCB layout and decoupling per Section 4.2.

VN820-12-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

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

Series:: -

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):: 9A

Rds On (Typ):: 40mOhm (Max)

Input Type:: Non-Inverting

Features:: Auto Restart, Status Flag

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

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

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 5-PENTAWATT

VN820-12-E FAQ

1.How can I place an order for VN820-12-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN820-12-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 VN820-12-E reliable?

The price and inventory of VN820-12-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN820-12-E is usually 5 days.

3.What payment methods are accepted for VN820-12-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN820-12-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN820-12-E?

VN820-12-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN820-12-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 VN820-12-E?

For technical support, including VN820-12-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN820-12-E requirements.

6.How does Aetrix verify that VN820-12-E is sourced from the original manufacturer or authorized distributors?

All VN820-12-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 VN820-12-E meets industry standards.

7.What is the process for return or replacement of VN820-12-E?

All VN820-12-E units undergo pre-shipment inspection (PSI). If there is an issue with VN820-12-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 VN820-12-E part is unused and in its original packaging.

Return procedure for VN820-12-E:

1.Submit a request within 90 days.

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

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