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

STMicroelectronics VN820SPTR-E

Name: VN820SPTR-E
Brand: STMicroelectronics
SKU: VN820SPTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN820SPTR-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: PowerSO-10 Exposed Bottom Pad

Datasheet:: VN820SPTR-E.pdf

Description:: IC PWR DRIVER N-CHAN 1:1 PWRSO10

Quantity:: RFQ Add To RFQ list

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Inventory:4,398

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Product details

Overview

VN820SPTR-E from STMicroelectronics is a high-side power switch IC designed for automotive load driving with ground-referenced loads. 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 actuators in 12 V/24 V vehicle electrical systems.

For engineers reviewing the VN820SPTR-E datasheet, VN820SPTR-E pinout, VN820SPTR-E application, or VN820SPTR-E equivalent, key selection criteria include its AEC-Q100 qualification, CMOS-compatible input logic, status pin diagnostics, reverse battery protection, and P2PAK package thermal performance in constrained automotive PCB layouts.

Technical Context

The VN820SPTR-E implements a monolithic VIPower® M0-3 high-voltage BCD process, integrating power MOSFET, driver, protection circuitry, and diagnostic feedback in a single die. Its active VCC clamp limits transients to ≤VCC − 41 V during inductive turn-off, while internal current limiting (5.5–20 A) and thermal shutdown (150–200 °C trip) operate synergistically with status pin reporting.

Open-load detection operates in both states: on-state detection triggers at 70–300 mA load current absence, while off-state detection identifies VOUT > 1.5–3.5 V (indicating short-to-VCC). The status pin outputs active-low fault signals with programmable delay (e.g., 20 ms overload hold time), enabling robust MCU-based fault recovery strategies.

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(on)	40 mΩ max at I_OUT = 3 A, T_j = 25 °C - enables low conduction loss and <1 W dissipation at 9 A in typical automotive ambient
I_OUT Continuous	9 A - supports high-power resistive and inductive loads like headlamps and fuel injectors without external heatsinking
V_CC Max	36 V - withstands load-dump transients per ISO 7637-2 Pulse 5a (up to +46.5 V) when combined with external clamping
Undervoltage Lockout	4 V typical (3–5.5 V range) - prevents erratic switching during cranking or brown-out conditions below battery nominal
Thermal Shutdown Trip	150 °C junction temperature - protects against sustained overload; automatic restart after cooling to 135 °C reset point
Status Pin Logic	Active-low open-drain output with 0.5 V max low-level voltage at 1.6 mA - directly interfaces with 3.3 V/5 V MCU GPIO for real-time fault reporting
ESD Rating	5 kV on V_CC/output pins (HBM) - ensures robustness during board handling and in-vehicle ESD events

Pinout & Package

P2PAK package: thermally enhanced surface-mount power package with exposed drain pad for direct PCB copper thermal coupling; footprint optimized for automotive-grade thermal reliability under high ambient temperatures.

Pin/Terminal	Circuit Role	Design Meaning
V_IN	CMOS-compatible digital input	Accepts 1.25 V low / 3.25 V high logic; 0.5 V hysteresis prevents noise-induced toggling near threshold
V_OUT	High-side switched output	Drives load between this pin and ground; integrates active clamp for inductive kickback suppression
V_CC	Power supply input	36 V max rating; internal clamp diode limits negative transients to −0.7 V and positive spikes to V_CC − 41 V
GND	Ground reference	Reverse battery protection activates if GND is disconnected - device shuts down to prevent latch-up
STATUS	Fault diagnostic output	Open-drain signal indicating thermal shutdown, overcurrent, open-load, undervoltage, or overvoltage faults

Key Features

Feature	Design Value
On/Off-state open-load detection	Enables full-cycle load monitoring: detects open circuits during activation (I_OUT < 70 mA) and deactivation (V_OUT > 1.5 V), eliminating need for external sense resistors
Integrated reverse battery protection	Automatically disables output if GND connection is lost - prevents destructive current flow through parasitic paths during service disconnect
Active V_CC clamp	Clamps inductive turn-off energy to V_CC − 41 V (min), reducing external TVS requirements and improving system-level surge immunity
Thermal shutdown with hysteresis	Shuts down at 150 °C and re-enables only after cooling to 135 °C - prevents thermal cycling damage and supports safe automatic recovery
AEC-Q100 Grade 0 qualification	Rated for −40 °C to +150 °C case temperature operation - validated for engine bay and under-hood applications requiring extended lifetime reliability

Applications

Headlamp Control Module

Engine Cooling Fan Driver

Use Scenario: Driving 55 W halogen or 30 W LED headlamps in modern vehicle lighting systems with PWM dimming and diagnostics.

IC Role / Device Role / Timing Role: High-side switch controlling lamp current path; STATUS pin reports open-circuit or short-circuit faults to body controller MCU.

Use Value: Eliminates discrete protection components; 40 mΩ R_DS(on) reduces thermal stress vs. mechanical relays, enabling compact PCB layout and extended lamp life via soft-start control.

Use Scenario: Controlling 12 V DC brushless cooling fans (up to 15 A peak) in engine thermal management systems with variable speed profiles.

IC Role / Device Role / Timing Role: High-current load switch with integrated current limiting and thermal foldback; STATUS pin signals stall or blocked-rotor condition.

Use Value: Withstands 100 V load-dump pulses per ISO 7637-2; active clamp absorbs demagnetization energy up to 156 mJ, preventing external snubber design.

Transmission Solenoid Interface

Door Lock Actuator Driver

Use Scenario: Driving 12 V electromagnetic shift solenoids in automatic transmission control units requiring precise on/off timing and fault logging.

IC Role / Device Role / Timing Role: Precision high-side driver with microsecond-scale switching (30 µs turn-on/off delay); STATUS pin flags coil open or short for predictive maintenance.

Use Value: On-state open-load detection confirms solenoid integrity before engagement; CMOS input compatibility allows direct connection to 3.3 V MCU GPIO without level-shifting.

Use Scenario: Powering dual-coil door lock/unlock actuators in central locking systems with bidirectional polarity control via two VN820SPTR-E devices.

IC Role / Device Role / Timing Role: Isolated high-side switch providing galvanic separation between MCU and actuator; reverse battery protection guards against service misconnection.

Use Value: 9 A rating supports fast actuation torque; low standby current (<10 µA) meets OEM quiescent current budgets for always-on vehicle security systems.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS27081AQPWPRQ1	Lower R_DS(on) (15 mΩ), lower I_OUT (4.5 A), no off-state open-load detection	Better efficiency at <5 A loads; lacks V_OUT-to-V_CC short detection required for safety-critical solenoid monitoring	Select when thermal budget is tight and diagnostic depth is secondary to conduction loss
IPS1021H	Higher R_DS(on) (60 mΩ), higher V_CC max (60 V), includes SPI diagnostics interface	Supports 48 V mild-hybrid systems; SPI enables multi-channel fault register readout not possible with STATUS pin alone	Select for next-gen 48 V architectures or when centralized diagnostic bus integration is required

Compared with TPS27081AQPWPRQ1 and IPS1021H, the VN820SPTR-E uniquely balances 9 A drive capability, comprehensive analog diagnostics (on/off open-load, VCC clamp), and AEC-Q100 Grade 0 qualification in a cost-optimized P2PAK package - making it optimal for mainstream 12 V/24 V body electronics where reliability and diagnostic coverage outweigh protocol flexibility or ultra-low R_DS(on).

Availability

VN820SPTR-E is available at Aetrix Electronics and suitable for automotive body control modules, engine management subsystems, and industrial PLC output stages requiring stable component supply, AEC-Q100 compliance, and high-temperature operational continuity.

Supply support for VN820SPTR-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 long-term product longevity programs.

The VN820SPTR-E belongs to ST's VIPower® high-side driver family, engineered specifically for automotive load-driving applications demanding robustness against harsh electrical environments, extended temperature operation, and integrated diagnostics for functional safety compliance.

FAQ

What is the maximum inductive load energy the VN820SPTR-E can safely demagnetize?

The VN820SPTR-E supports up to 156 mJ of demagnetization energy (measured at V_CC = 13.5 V, L = 1.4 mH, I_L = 13 A, T_j,start = 150 °C). This value is validated per ST's test conditions in the datasheet and reflects worst-case energy absorption during forced turn-off of highly inductive loads like fuel injectors or solenoids - no external freewheeling diode is required due to the integrated active clamp.

Does the VN820SPTR-E require an external pull-up resistor on the STATUS pin?

Yes - the STATUS pin is an open-drain output and requires an external pull-up resistor (typically 4.7 kΩ to V_CC or MCU I/O rail) to generate a valid logic-high level during normal operation. Without it, the pin remains floating during non-fault conditions, preventing reliable MCU detection of healthy state. ST recommends routing the pull-up close to the pin to minimize noise coupling.

Can the VN820SPTR-E be used in 48 V automotive systems?

No - the absolute maximum V_CC rating is 41 V DC, and the overvoltage shutdown triggers at 36 V. While it withstands ISO 7637-2 Pulse 5a (up to +46.5 V transient), sustained 48 V operation exceeds its safe operating area and risks permanent damage. For 48 V systems, ST's IPS1021H (60 V rated) or Infineon's BTS7004-1EPP are appropriate alternatives.

How does reverse battery protection work on the VN820SPTR-E?

Reverse battery protection activates when the GND pin becomes disconnected or reversed relative to system ground. Internal circuitry detects loss of ground reference and forces the output into high-impedance shutdown - preventing destructive current flow through substrate parasitics. This function is automatic and requires no external components, but relies on correct PCB grounding and trace routing per ST's layout guidelines.

VN820SPTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: PowerSO-10 Exposed Bottom Pad

Series:: VIPower™

Packaging:: Tape & Reel (TR)

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:: Surface Mount

Supplier Device Package:: 10-PowerSO

VN820SPTR-E FAQ

1.How can I place an order for VN820SPTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN820SPTR-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 VN820SPTR-E reliable?

The price and inventory of VN820SPTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN820SPTR-E is usually 5 days.

3.What payment methods are accepted for VN820SPTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN820SPTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN820SPTR-E?

VN820SPTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN820SPTR-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 VN820SPTR-E?

For technical support, including VN820SPTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN820SPTR-E requirements.

6.How does Aetrix verify that VN820SPTR-E is sourced from the original manufacturer or authorized distributors?

All VN820SPTR-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 VN820SPTR-E meets industry standards.

7.What is the process for return or replacement of VN820SPTR-E?

All VN820SPTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VN820SPTR-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 VN820SPTR-E part is unused and in its original packaging.

Return procedure for VN820SPTR-E:

1.Submit a request within 90 days.

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

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