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

STMicroelectronics VN820SP-E

Name: VN820SP-E
Brand: STMicroelectronics
SKU: VN820SP-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN820SP-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: PowerSO-10 Exposed Bottom Pad

Datasheet:: VN820SP-E.pdf

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

Quantity:: RFQ Add To RFQ list

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Inventory:1,970

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Product details

Overview

VN820SP-E from STMicroelectronics is an automotive-grade high-side driver IC designed for ground-referenced resistive, inductive, and capacitive loads in 12 V/24 V systems. It features 40 mΩ R_DS(on), 9 A continuous output current, 36 V V_CC rating, and integrated open-load detection (on- and off-state), thermal shutdown, undervoltage/overvoltage protection, and reverse battery protection. It is used in body control modules for headlight, fog light, and HVAC blower switching.

For engineers reviewing the VN820SP-E datasheet, VN820SP-E pinout, VN820SP-E application, or VN820SP-E equivalent, key selection criteria include on-state resistance at 125 °C, status pin diagnostic timing accuracy, demagnetization energy handling (156 mJ), and compliance with ISO 7637-2 pulse 1/2/3a/3b/5 transient immunity requirements.

Technical Context

The VN820SP-E implements a monolithic VIPower® M0-3 high-voltage BCD process with active V_CC clamp and integrated logic-level CMOS-compatible input stage. Its status pin provides real-time fault reporting via open-drain output with programmable hysteresis (0.5 V) and clamp voltage (6–8 V).

Protection architecture includes dual-threshold thermal shutdown (150 °C trip, 135 °C reset), current limitation (9–20 A depending on V_CC), and off-state output short-to-V_CC detection using internal sense circuitry. Load dump immunity is achieved via active clamping and 156 mJ maximum demagnetization energy rating at V_CC = 13.5 V.

Key Specifications

Parameter	Value and Actual Design Meaning
R_DS(on)	40 mΩ max at I_OUT = 3 A, T_j = 25 °C - ensures <1.2 W conduction loss at 9 A nominal load
I_OUT (continuous)	9 A - supports high-power lighting and motor loads without external heatsinking under defined PCB copper area
V_CC range	5.5–36 V - compatible with 12 V and 24 V automotive battery systems including cold-crank (5.5 V) and load-dump (36 V)
Open-load detection	On-state: 70–300 mA threshold; Off-state: 1.5–3.5 V threshold - enables reliable fault isolation without external sensing components
Thermal shutdown	150 °C trip / 135 °C reset with 15 °C hysteresis - prevents latch-up during sustained overload while allowing automatic recovery
ISO 7637-2 immunity	Pulse 1 (−100 V), Pulse 2a (+100 V), Pulse 3a/b (±150 V), Pulse 5 (+46.5 V) - meets OEM-level EMC requirements for powertrain-adjacent modules
Status pin leakage	≤10 µA at V_STAT = 5 V - minimizes MCU pull-up current burden in low-power sleep modes

Pinout & Package

Package: PowerSO-10 (exposed die pad, thermally enhanced surface-mount). Pin count: 10 terminals. Mounting requires soldered exposed pad to PCB thermal plane per ST's recommended layout (Figure 49, Doc ID 10890 Rev 8).

Pin/Terminal	Circuit Role	Design Meaning
V_CC	Power supply input	Clamped to ≤36 V; supplies internal logic and gate drive; accepts transients up to +100 V (Pulse 2a)
GND	Ground reference	Reverse-battery protected; disconnect detection triggers automatic shutdown
IN	CMOS-compatible digital input	VIH = 3.25 V, VIL = 1.25 V, hysteresis = 0.5 V - interfaces directly with 3.3 V/5 V MCUs without level shifters
OUT	High-side switched output	Drives load between OUT and GND; supports inductive kickback clamping via internal diode
STATUS	Open-drain diagnostic output	Asserts low on overtemperature, overcurrent, undervoltage, open-load, or short-to-V_CC; 100 pF capacitance limits rise time
NC	No-connect terminal	Internally unconnected; must be left floating per Table 2 (no pull-up/down required)

Key Features

Feature	Design Value
Automotive Grade AEC-Q100 qualified	Qualified per AEC-Q100 Rev H for Grade 1 (−40 °C to +125 °C ambient) - validated for under-hood deployment
Integrated reverse battery protection	Withstands −14 V applied to GND pin without damage or latch-up - eliminates need for external series diode
Active V_CC clamp	Clamps low-energy spikes to ≤36 V - protects internal circuitry during load dump without external TVS
On- and off-state open-load detection	Detects disconnected load in both active and inactive states - enables full-cycle diagnostics for ASIL-B functional safety compliance
Low standby current	≤10 µA at V_CC = 13 V, T_j = 25 °C - meets automotive "always-on" module quiescent current budgets

Applications

Headlight Switching

HVAC Blower Control

Use Scenario: High-intensity discharge (HID) and LED headlight modules requiring PWM dimming and fault monitoring in modern vehicle front lighting clusters.

IC Role / Device Role / Timing Role: High-side switch controlling 12 V/24 V headlight loads; STATUS pin reports open-circuit, short-to-ground, or thermal faults to body controller MCU.

Use Value: Eliminates discrete protection components (TVS, sense resistor, comparator), reducing BOM count by ≥4 parts while enabling ISO 13849 PLd-compliant diagnostics.

Use Scenario: Variable-speed HVAC blower motor control in premium passenger cabins, where EMI robustness and thermal reliability are critical.

IC Role / Device Role / Timing Role: High-side driver interfacing with 3.3 V automotive MCU; handles inductive back-EMF during PWM commutation and provides real-time overcurrent feedback.

Use Value: 156 mJ demagnetization energy rating allows safe turn-off of 150 mH blower motors at 13.5 V without snubber networks.

Seat Heater Management

Engine Cooling Fan Drive

Use Scenario: Dual-zone seat heating systems with independent channel control and thermal foldback in electric vehicles.

IC Role / Device Role / Timing Role: High-side switch enabling precise current limiting (9–20 A) and temperature-based derating via STATUS flag and MCU software coordination.

Use Value: Internal current limit and thermal hysteresis (15 °C) prevent heater element burnout during prolonged operation at elevated cabin temperatures.

Use Scenario: Radiator cooling fan actuation in engine bay environments subject to high ambient temperature and electrical transients.

IC Role / Device Role / Timing Role: High-side driver with ISO 7637-2 Pulse 5 immunity (+46.5 V) and 150 °C junction shutdown - survives alternator load dump events near engine block.

Use Value: Integrated V_CC clamp and reverse-battery protection reduce need for external protection, lowering system cost and PCB area by >25% vs. discrete solutions.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS4H160-Q1	R_DS(on) = 160 mΩ (higher conduction loss); 120 V absolute max V_CC; no off-state open-load detection	Targeted at higher-voltage industrial PLCs; lacks automotive-specific diagnostics like off-state short-to-V_CC detection	Select when >40 V transient tolerance is mandatory and diagnostic depth is secondary to voltage margin
IPS1025H	R_DS(on) = 25 mΩ (lower loss); 60 V V_CC; supports daisy-chained status reporting via SPI	Designed for multi-channel centralized power distribution units; adds digital interface overhead not needed in simple single-channel BCU nodes	Select when lower R_DS(on) and digital configurability outweigh cost and design complexity trade-offs

Compared with TPS4H160-Q1 and IPS1025H, the VN820SP-E delivers optimal balance of diagnostic completeness (on/off-state open-load, reverse-battery, demag energy), automotive qualification rigor, and thermal performance in PowerSO-10 - making it preferred for cost-sensitive, functionally safe body electronics where analog simplicity and proven field reliability are prioritized.

Availability

VN820SP-E is available at Aetrix Electronics and suitable for automotive body control modules, HVAC subsystems, and seat comfort systems requiring stable component supply across extended production lifecycles (2013–present).

Supply support for VN820SP-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, with vertical manufacturing and automotive-focused R&D centers across Europe and Asia.

The VN820SP-E belongs to ST's VIPower® high-side driver product line, engineered specifically for automotive power distribution and load control applications demanding AEC-Q100 qualification, integrated diagnostics, and robust transient immunity.

FAQ

What is the maximum continuous output current rating for VN820SP-E?

The VN820SP-E is rated for 9 A continuous output current under specified thermal conditions: mounted on a standard FR-4 PCB with ≥6 cm² of 35 µm copper, T_c ≤ 150 °C, and V_CC = 13.5 V. Derating applies above 100 °C case temperature per Figure 23 (I_lim vs T_case curve), and peak pulsed current reaches 20 A during short-circuit events before thermal shutdown activates.

Does VN820SP-E require an external flyback diode for inductive loads?

No external flyback diode is required. The VN820SP-E integrates an internal V_CC-clamp diode that safely dissipates demagnetization energy up to 156 mJ (L = 1.4 mH, V_bat = 13.5 V, T_j,start = 150 °C). This eliminates external components for typical automotive solenoids, relays, and small motors, though external clamping may be added for extreme energy cases beyond spec limits.

How does the STATUS pin indicate open-load faults in off-state mode?

In off-state, the STATUS pin asserts low when the output is shorted to V_CC (detected via internal current source and voltage threshold comparison). The off-state open-load detection threshold is 1.5–3.5 V at the OUT pin, with 1 ms delay (t_DOL(off)). This allows the MCU to distinguish between true open-circuit (STATUS remains high) and short-to-rail faults (STATUS pulled low) during key-off diagnostics.

Is VN820SP-E compatible with 3.3 V microcontrollers?

Yes. The IN pin has CMOS-compatible thresholds: V_IL = 1.25 V (max), V_IH = 3.25 V (min), and 0.5 V hysteresis. A 3.3 V MCU GPIO can directly drive the input without level shifting. Input leakage is ≤10 µA, ensuring minimal loading on low-drive-strength outputs. Status pin is open-drain with 10 µA leakage, compatible with standard 3.3 V pull-up resistors.

VN820SP-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: PowerSO-10 Exposed Bottom Pad

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:: Surface Mount

Supplier Device Package:: 10-PowerSO

VN820SP-E FAQ

1.How can I place an order for VN820SP-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VN820SP-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 VN820SP-E reliable?

The price and inventory of VN820SP-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN820SP-E is usually 5 days.

3.What payment methods are accepted for VN820SP-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN820SP-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN820SP-E?

VN820SP-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN820SP-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 VN820SP-E?

For technical support, including VN820SP-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN820SP-E requirements.

6.How does Aetrix verify that VN820SP-E is sourced from the original manufacturer or authorized distributors?

All VN820SP-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 VN820SP-E meets industry standards.

7.What is the process for return or replacement of VN820SP-E?

All VN820SP-E units undergo pre-shipment inspection (PSI). If there is an issue with VN820SP-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 VN820SP-E part is unused and in its original packaging.

Return procedure for VN820SP-E:

1.Submit a request within 90 days.

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

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