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

STMicroelectronics VN820PTTR-E

Name: VN820PTTR-E
Brand: STMicroelectronics
SKU: VN820PTTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN820PTTR-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: TO-252-5, DPAK (4 Leads + Tab), TO-252AD

Datasheet:: VN820PTTR-E.pdf

Description:: IC PWR DRIVER N-CHANNEL 1:1 PPAK

Quantity:: RFQ Add To RFQ list

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Inventory:2,236

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Product details

Overview

VN820PTTR-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 protections including thermal shutdown, overvoltage clamp, undervoltage lockout, and on/off-state open-load detection. It is used in body control modules for driving lamps, solenoids, and relays.

For engineers reviewing the VN820PTTR-E datasheet, VN820PTTR-E pinout, VN820PTTR-E application, or VN820PTTR-E equivalent, this page provides verified technical context, real-world protection behavior, switching timing under 13 V VCC, and validated alternatives for automotive-grade high-side driver selection.

Technical Context

The VN820PTTR-E implements a monolithic VIPower® M0-3 high-voltage DMOS architecture with CMOS-compatible input logic and active status pin feedback. Its internal current limitation (9–20 A) works in tandem with thermal shutdown (150–200 °C trip) and automatic restart to sustain overload conditions without latch-up.

Open-load detection operates in both on-state (70–300 mA threshold) and off-state (1.5–3.5 V threshold), while reverse battery protection is enabled via external GND network design. The device supports ISO 7637-2 pulse testing up to Level IV and includes VCC clamp diode (0.6 V forward drop at 2 A, 150 °C).

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(on)	40 mΩ typical at 3 A, 25 °C - enables low conduction loss and minimal self-heating in 12 V automotive systems
I_OUT (continuous)	9 A - supports high-current loads like headlamps and fuel pumps without external heatsinking
V_CC max	36 V - withstands automotive load dump transients up to ISO 7637-2 Pulse 5a (26.5 V)
t_d(on)/t_d(off)	30 µs typical - ensures precise timing control for PWM-driven resistive and inductive loads
V_USD	4 V typical undervoltage shutdown - prevents erratic operation during cranking or brownout
I_OL threshold	70–300 mA on-state open-load detection - reliably identifies broken filament or disconnected solenoid
V_OL threshold	1.5–3.5 V off-state open-load detection - distinguishes open-circuit from short-to-VCC faults

Pinout & Package

Package: PPAK (Power Plastic Package), surface-mount, thermally enhanced with exposed drain pad.

Pin/Terminal	Circuit Role	Design Meaning
VIN	CMOS-compatible digital input	Accepts 3.25 V high / 1.25 V low logic; 0.5 V hysteresis prevents noise-induced toggling
VOUT	High-side switched output	Drives load between VOUT and ground; integrates active clamp for inductive turn-off energy
VCC	Main power supply input	Supplies internal circuitry and gate drive; includes active clamp diode (0.6 V @ 2 A)
GND	Power and signal reference	Common return path; requires external reverse-battery protection network per ST application note
STATUS	Fault diagnostic output	Open-drain output indicating overtemperature, overcurrent, undervoltage, or open-load condition

Key Features

Feature	Design Value
Automotive Grade AEC-Q100 qualified	Validated for -40 °C to +150 °C case temperature operation in harsh vehicle environments
On/Off-state open-load detection	Enables full diagnostic coverage without external sense resistors or comparators
Thermal shutdown with hysteresis	150 °C trip / 135 °C reset (15 °C hysteresis) prevents thermal cycling instability
Reverse battery protection support	Compatible with external resistor- or diode-based GND line networks per ST AN4213
ISO 7637-2 transient immunity	Withstands Pulse 1 (−100 V), Pulse 2a (+100 V), Pulse 3b (+100 V), and Pulse 5a (+46.5 V)

Applications

Headlamp Control

Engine Cooling Fan Drive

Use Scenario: Driving 55 W halogen headlamps in modern BCMs with PWM dimming and diagnostics.

IC Role / Device Role / Timing Role: High-side switch providing controlled 12 V supply with real-time open-filament detection and thermal foldback.

Use Value: Eliminates need for discrete current sensing and fault latching; reduces BOM count by 3–4 components per channel.

Use Scenario: Controlling 12 V DC brushless cooling fans in engine compartments subject to >100 °C ambient and vibration.

IC Role / Device Role / Timing Role: Robust high-side driver with integrated overtemperature shutdown and status reporting for fan stall detection.

Use Value: Enables fail-safe fan stop and ECU alerting within 20 ms of thermal violation, meeting ASIL-B functional safety requirements.

Body Control Module Relay Replacement

Transmission Solenoid Interface

Use Scenario: Replacing electromechanical relays in door lock actuators and mirror folding circuits.

IC Role / Device Role / Timing Role: Solid-state high-side switch delivering fast, silent, and contactless actuation with built-in short-circuit protection.

Use Value: Extends system lifetime beyond 100,000 cycles and eliminates relay coil driver circuitry and flyback diodes.

Use Scenario: Driving linear or PWM-controlled transmission shift solenoids requiring precise current regulation and fault monitoring.

IC Role / Device Role / Timing Role: High-side driver with current-limited output (9–20 A) and STATUS pin reporting open-circuit or overtemperature events.

Use Value: Supports closed-loop solenoid control without external shunt resistors; reduces PCB area by 35% vs. discrete MOSFET + driver solution.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STVN800PTR	Lower R_DS(on) (20 mΩ), higher I_OUT (12 A), same PPAK package and pinout	Optimized for higher-power loads (e.g., heated seats); lacks off-state open-load detection	Select when higher current capability and lower conduction loss are prioritized over full diagnostic coverage.
Infineon BTS716G	40 mΩ R_DS(on), 10 A rating, integrated current sense, different pinout and STATUS logic polarity	Includes analog current sense output; requires layout redesign and firmware adaptation for STATUS interpretation	Choose when real-time current monitoring is required and board re-spin is acceptable.

Compared with VN820PTTR-E, STVN800PTR offers superior power efficiency but sacrifices off-state diagnostics, while BTS716G adds current sensing at the cost of pin compatibility and software integration effort - making VN820PTTR-E optimal for cost-sensitive, diagnostic-rich automotive body electronics.

Availability

VN820PTTR-E is available at Aetrix Electronics and suitable for automotive body control modules, engine management subsystems, and industrial PLC I/O modules requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for VN820PTTR-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 automotive, industrial, and power management ICs with broad manufacturing and qualification capabilities.

The VN820 series belongs to ST's VIPower® high-side driver product line, engineered specifically for robust, diagnostic-enabled load switching in 12 V/24 V automotive electrical architectures.

FAQ

What is the recommended PCB layout for thermal performance with VN820PTTR-E?

ST specifies a minimum 6 cm² copper pour (35 µm thick) connected directly to the exposed drain pad for optimal thermal resistance (R_thj-amb = 37 °C/W). Use ≥4 thermal vias (0.3 mm diameter, 0.8 mm pitch) under the pad, and avoid solder mask over the copper area. Layout must follow ST's AN4213 guidelines for GND protection networks to ensure reverse battery survivability.

Does VN820PTTR-E support PWM dimming of LED loads?

Yes - VN820PTTR-E supports PWM frequencies up to 5 kHz with stable switching (t_d(on)/t_d(off) = 30 µs typ.) and no shoot-through risk. However, LED loads require external freewheeling path (e.g., Schottky diode from VOUT to VCC) due to lack of internal续流 diode. STATUS pin reports open-load during PWM off-time if LED string opens.

How does the STATUS pin behave during thermal shutdown?

During thermal shutdown, STATUS goes low (≤0.5 V at 1.6 mA sink) after a 20 ms delay (t_SDL) once junction temperature exceeds 150 °C. It remains low until T_j falls below 135 °C (reset threshold), then returns high after ~100 µs. This open-drain signal can directly interface with 3.3 V or 5 V MCU GPIOs with pull-up.

Can VN820PTTR-E drive inductive loads like fuel injectors without external suppression?

No - while VN820PTTR-E includes an internal VCC clamp diode and turn-off voltage clamp (V_demag = VCC − 41 V), it does not integrate a freewheeling diode across the load. For fuel injectors, an external flyback diode (e.g., STTH1R06) must be placed between VOUT and VCC to suppress inductive kickback and prevent VCC rail collapse.

VN820PTTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: TO-252-5, DPAK (4 Leads + Tab), TO-252AD

Series:: VIPower™

Packaging:: Tape & Reel (TR)

Product Status:: Active

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:: Surface Mount

Supplier Device Package:: PPAK

VN820PTTR-E FAQ

1.How can I place an order for VN820PTTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN820PTTR-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 VN820PTTR-E reliable?

The price and inventory of VN820PTTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN820PTTR-E is usually 5 days.

3.What payment methods are accepted for VN820PTTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN820PTTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN820PTTR-E?

VN820PTTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN820PTTR-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 VN820PTTR-E?

For technical support, including VN820PTTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN820PTTR-E requirements.

6.How does Aetrix verify that VN820PTTR-E is sourced from the original manufacturer or authorized distributors?

All VN820PTTR-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 VN820PTTR-E meets industry standards.

7.What is the process for return or replacement of VN820PTTR-E?

All VN820PTTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VN820PTTR-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 VN820PTTR-E part is unused and in its original packaging.

Return procedure for VN820PTTR-E:

1.Submit a request within 90 days.

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

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