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

STMicroelectronics VN9008AJTR

Name: VN9008AJTR
Brand: STMicroelectronics
SKU: VN9008AJTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VN9008AJTR

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 16-PowerLFSOP (0.154", 3.90mm Width)

Datasheet:: VN9008AJTR.pdf

Description:: SINGLE CHANNEL HIGH-SIDE DRIVER

Quantity:: RFQ Add To RFQ list

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Product details

Overview

VN9008AJTR from STMicroelectronics is a single-channel AEC-Q100 qualified smart high-side driver in PowerSSO-16 package, designed for 12 V automotive grounded loads with 3 V/5 V CMOS-compatible control. It delivers 8 mΩ on-state resistance, 81.6 A current limitation (typ), and <0.5 µA standby current, enabling deep cold-cranking operation per LV124 Rev 2013. Used in headlamps, ADAS radar supplies, and motor control.

For engineers reviewing the VN9008AJTR datasheet, VN9008AJTR pinout, VN9008AJTR application, or VN9008AJTR equivalent, key selection criteria include its multiplexed analog current sense (K=9800 ±7% at 4.6 A), configurable latch-off vs auto-restart fault recovery, and integrated diagnostics for open-load (OFF-state), short-to-VCC, and thermal shutdown.

Technical Context

The device implements VIPower M0-9 technology to integrate power MOSFET, gate driver, protection logic, and multiplexed analog sense circuitry in one die. Its thermal protection uses spatial temperature gradient sensing to trigger dynamic power limitation before junction temperature exceeds 150 °C, with ΔTJ_SD thresholds of 55 K (at 19 V) and 80 K (at 16 V).

Diagnostic functionality centers on the CS pin: when enabled by SEn, it outputs proportional current (I_SENSE = I_OUT/K) for load current, chip temperature, or supply voltage feedback; fault states (overload, open-load, short-to-VCC) shift CS output to defined voltage/current levels (e.g., V_SENSEH = 5–7.5 V during open-load detection).

Key Specifications

Parameter	Value and Actual Design Meaning
VCC Range	4–28 V DC: supports full automotive battery range including cold-crank dips to 4 V and jump-start surges up to 36 V absolute max.
R_ON	8 mΩ typ at 4.6 A, 25°C: enables low conduction loss and minimal self-heating in high-current 12 V loads like motors or heaters.
I_LIMH	81.6 A typ at VCC=16 V, -40°C: precise current limiting prevents wire fuse blowout while allowing brief inrush for inductive loads.
I_STBY	0.5 µA max at 13 V, 25°C: ensures negligible battery drain during vehicle sleep mode, critical for always-on ADAS modules.
K₂ (I_OUT/I_SENSE)	9800 ±7% at 4.6 A: high-accuracy proportional current mirroring enables closed-loop load monitoring without external shunt.
t_{D_Restart}	50–75 ms latch-OFF delay: provides controlled restart timing after thermal or overload fault, preventing destructive cycling.
V_USD	2.7 V undervoltage shutdown threshold: guarantees safe turn-off before microcontroller I/O becomes unreliable during brownout.

Pinout & Package

Package: PowerSSO-16 - thermally enhanced exposed-tab SO-16 variant with VCC-connected tab for low R_thj-board (6.8 °C/W) and robust automotive mounting.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	Primary power rail; connects to exposed tab for thermal conduction; clamped to 36 V during overvoltage events.
GND	Ground reference	Must be reverse-battery protected externally; serves as return path for all currents including diagnostic feedback.
INPUT0	CMOS-compatible enable input	Hysteresis (0.2 V) prevents noise-induced switching; compatible with 3 V/5 V logic; controls OUT0 state directly.
OUT0	High-side power output	Drives grounded load; integrates reverse-battery diode (VF = 0.7 V at -4.6 A); rated for 81.6 A DC limit.
CS	Multiplexed analog sense output	Outputs proportional current (I_SENSE) for load current, VCC, or T_j; fault states drive fixed V_SENSEH or I_ISENSEH.
SEn	Sense enable control	Active-high CMOS input; enables CS function; must be pulled to 5 V via 15 kΩ resistor if unused.
FaultRST	Fault reset/latch control	Active-low input; low = auto-restart mode, high = latch-off; unlatches output within 3–20 µs of falling edge.

Key Features

Feature	Design Value
Extreme low-voltage operation	Functional down to 4 V VCC and undervoltage shutdown at 2.7 V - meets LV124 Rev 2013 for deep cold-cranking in sub-zero environments.
Multiplexed analog current sense	Single CS pin delivers load current (±7% accuracy at 4.6 A), supply voltage, and junction temperature - eliminates need for separate sensors.
Configurable fault recovery	FaultRST pin selects between auto-restart (low) or latch-off (high) after thermal overload or short-circuit - enables system-level fault strategy alignment.
Comprehensive diagnostics	Detects OFF-state open-load (via external pull-up), short-to-VCC, short-to-ground, and thermal shutdown - all reported through CS pin.
Reverse battery protection	Self-turn-on prevention and internal clamp allow direct connection to battery without external diode - reduces BOM and footprint.

Applications

Automotive Headlamps

ADAS Radar Power Supply

Use Scenario: High-intensity LED headlamp module requiring PWM dimming and open-circuit fault detection during vehicle startup.

IC Role / Device Role / Timing Role: High-side switch controlling ground-referenced LED string; provides real-time current feedback for brightness regulation and detects filament breakage.

Use Value: 8 mΩ R_ON minimizes heat generation at 5–10 A continuous load; OFF-state open-load detection confirms LED integrity before illumination.

Use Scenario: Protected 12 V supply for 77 GHz automotive radar ECU, requiring stable power during engine cranking and fault logging capability.

IC Role / Device Role / Timing Role: Smart power distributor delivering regulated 12 V to radar transceiver; monitors load current and reports overtemperature events via CS pin.

Use Value: 0.5 µA standby current preserves battery during parking mode; latch-off mode prevents repeated fault cycling during radar self-test anomalies.

Electric HVAC Blower Motor

Engine Control Heater Actuator

Use Scenario: 12 V brushed DC blower motor in cabin HVAC system, subject to stall conditions and thermal stress during recirculation mode.

IC Role / Device Role / Timing Role: High-side driver with integrated current limiting and thermal shutdown; senses motor current to detect rotor lock and prevent coil burnout.

Use Value: 81.6 A current limit accommodates 3× stall current; power limitation mode dynamically throttles output instead of hard-shutdown, avoiding abrupt airflow loss.

Use Scenario: Precision heater element in exhaust gas recirculation (EGR) valve, requiring accurate current control and open-circuit verification for emissions compliance.

IC Role / Device Role / Timing Role: Current-regulated high-side driver providing diagnostic feedback to engine control unit; detects heater disconnection or short during key-on self-test.

Use Value: ±7% current sense accuracy at 4.6 A enables closed-loop heater power calibration; short-to-VCC detection identifies wiring harness faults pre-ignition.

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 BTS7008-1EPA	Higher R_ON (12 mΩ), no multiplexed analog sense - uses digital SPI for diagnostics.	Requires microcontroller with SPI interface; lacks analog current feedback for simple MCU-less systems.	Select when digital bus integration and higher channel count outweigh need for analog diagnostics.
NXP MC33883A	Lower current limit (40 A), no latch-off mode - only auto-restart or shutdown on fault.	Suitable for lower-power actuators but cannot hold fault state for safety-critical ECU analysis.	Select for cost-sensitive non-safety applications where thermal fault persistence is not required.

Compared with VN9008AJTR, BTS7008-1EPA trades analog simplicity for digital configurability, while MC33883A sacrifices current capacity and fault-hold capability for lower cost - making VN9008AJTR optimal for AEC-Q100 systems needing precision analog diagnostics and configurable fault behavior.

Availability

VN9008AJTR is available at Aetrix Electronics and suitable for automotive headlamps, ADAS radar power distribution, and HVAC blower motor control requiring stable component supply across extended temperature and voltage ranges.

Supply support for VN9008AJTR 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 AEC-Q100 product coverage.

VN9008AJTR belongs to ST's VIPower family of smart power switches, engineered specifically for automotive body electronics demanding high reliability, integrated protection, and diagnostic-rich interfaces.

FAQ

What is the maximum continuous output current rating for VN9008AJTR?

The device does not specify a fixed "continuous current" rating due to thermal dependency. Its DC current limit (I_LIMH) is 81.6 A typ at VCC=16 V and -40°C, decreasing to 68 A at +150°C. Actual continuous current depends on PCB layout, ambient temperature, and airflow - with R_thj-board = 6.8 °C/W, sustained 40 A operation is feasible at 85°C ambient using a 4-layer board.

How does the multiplexed CS pin distinguish between load current, supply voltage, and temperature readings?

The CS pin outputs current (I_SENSE) proportional to load current by default. When SEn is high and INPUT0 is toggled, internal multiplexer routing shifts CS output to reflect VCC (via internal divider) or junction temperature (via PTAT circuit). The host reads these states sequentially - no external components needed beyond a single sense resistor.

Can VN9008AJTR drive inductive loads like solenoids without external flyback protection?

Yes - the device integrates active clamp circuitry that limits V_OUT to VCC − 36 V during inductive turn-off (e.g., 1 A into 6 mH load), eliminating need for external TVS or diodes. This clamp operates across -40°C to +150°C and is validated per ISO 7637-2 pulse 5a requirements.

What is the minimum VCC required to maintain functional diagnostics such as open-load detection?

OFF-state open-load detection remains operational down to VCC = 4 V, with VOL threshold specified at 2–4 V and t_{D_OL_V} settling time of 60 µs after SEn activation. Below 4 V, undervoltage shutdown activates at 2.7 V, disabling all functions including diagnostics.

VN9008AJTR Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 16-PowerLFSOP (0.154", 3.90mm Width)

Series:: -

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:: -

Voltage - Load:: -

Voltage - Supply (Vcc/Vdd):: 4V ~ 28V

Current - Output (Max):: 81.6A

Rds On (Typ):: 8mOhm

Input Type:: Non-Inverting

Features:: Latch Function, Status Flag

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

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

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: PowerSSO-16

VN9008AJTR FAQ

1.How can I place an order for VN9008AJTR through Aetrix?

Please submit a Request for Quotation (RFQ) for VN9008AJTR 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 VN9008AJTR reliable?

The price and inventory of VN9008AJTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN9008AJTR is usually 5 days.

3.What payment methods are accepted for VN9008AJTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN9008AJTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VN9008AJTR?

VN9008AJTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VN9008AJTR 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 VN9008AJTR?

For technical support, including VN9008AJTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN9008AJTR requirements.

6.How does Aetrix verify that VN9008AJTR is sourced from the original manufacturer or authorized distributors?

All VN9008AJTR 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 VN9008AJTR meets industry standards.

7.What is the process for return or replacement of VN9008AJTR?

All VN9008AJTR units undergo pre-shipment inspection (PSI). If there is an issue with VN9008AJTR, 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 VN9008AJTR part is unused and in its original packaging.

Return procedure for VN9008AJTR:

1.Submit a request within 90 days.

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

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