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

STMicroelectronics VND7040AJ-E

Name: VND7040AJ-E
Brand: STMicroelectronics
SKU: VND7040AJ-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VND7040AJ-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

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

Datasheet:: VND7040AJ-E.pdf

Description:: IC PWR DRVR N-CHAN 1:1 PWRSSO16

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Product details

Overview

VND7040AJ-E from STMicroelectronics is a double-channel automotive smart high-side driver in PowerSSO-16 package, integrating MultiSense analog feedback for load current (±5% accuracy), VCC supply voltage, and chip temperature sensing. It delivers 40 mΩ on-resistance per channel, 34 A current limitation, and supports 4–28 V operation with <0.5 µA standby current - designed for driving signal lamps (e.g., SAE1156, P27W, LED rear combinations) in 12 V grounded-load systems.

For engineers reviewing the VND7040AJ-E datasheet, VND7040AJ-E pinout, VND7040AJ-E application, or VND7040AJ-E equivalent, this page provides verified technical context, diagnostic architecture details, real-world protection behavior under short-to-VCC and open-load conditions, and validated alternatives for automotive lamp control modules requiring latch-off configurability and multiplexed analog diagnostics.

Technical Context

The device implements two independent VIPower® high-side switches with integrated current-limiting, thermal shutdown, and undervoltage lockout - each channel features configurable latch-off via dedicated FaultRST pin and active power limitation during overload. Its MultiSense architecture uses time-multiplexed analog output to deliver proportional load current (1:2000 mirror ratio), VCC, and TCHIP signals on a single pin with ±5% full-scale accuracy across -40°C to 150°C.

Protection logic includes off-state open-load detection (threshold: 0.5 V), short-to-VCC identification, reverse-battery resilience with external diode network, and ESD robustness (4 kV HBM on INPUT/FAULT pins). The SEn pin enables/disables diagnostics during low-power modes, while SEL0/SEL1 select between current, VCC, and temperature sensing channels.

Key Specifications

Parameter	Value and Actual Design Meaning
Operating Voltage Range	4–28 V DC - supports cold-crank (4 V) and jump-start (28 V) conditions in automotive 12 V systems.
On-State Resistance (per Ch)	40 mΩ typ. at 25°C - enables <1 W conduction loss at 5 A, critical for thermally constrained lamp modules.
Current Limitation	34 A typ. - sustains brief inrush into capacitive/inductive loads without latch-off unless sustained.
Standby Current	0.5 µA max. at 13 V - meets ISO 16750-2 quiescent power requirements for always-on vehicle modules.
MultiSense Accuracy	±5% full-scale for load current, VCC, and chip temperature - enables closed-loop thermal derating and supply monitoring without external ADC.
Thermal Shutdown Threshold	150°C junction - triggers configurable latch-off or auto-restart mode depending on FaultRST state.
ESD Robustness	4 kV HBM on INPUT/FAULT pins - ensures reliability during board handling and in-vehicle ESD events.

Pinout & Package

Package: PowerSSO-16 - surface-mount, exposed die-pad thermally enhanced package with 16 terminals, optimized for automotive PCBs with 2-layer or 4-layer copper heatsinking (R_thj-board = 5.7 °C/W).

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	Accepts 4–28 V; clamped to 40 V transient; powers internal regulators and gate drivers.
GND	Ground reference	Must be protected against reverse battery via external diode/resistor network per ISO 16750-2.
OUTPUT0, OUTPUT1	High-side power outputs	Drive grounded automotive loads; each supports up to 34 A peak with internal current limiting.
INPUT0, INPUT1	CMOS-compatible control inputs	3 V/5 V logic compatible; hysteresis ≥0.2 V prevents noise-induced switching in harsh environments.
MultiSense	Multiplexed analog diagnostic output	Delivers proportional current for I_LOAD, V_CC, or T_CHIP; requires external RC filter for ADC sampling.
SEn	Sense enable control	Active-high; disables MultiSense during standby to reduce system power and allow shared sense resistor.
SEL0, SEL1	Multiplexer address inputs	Select diagnostic channel: 00 = load current, 01 = VCC, 10 = chip temperature, 11 = reserved.
FaultRST	Fault reset / latch control	Active-low; unlatches outputs after fault or forces auto-restart mode when held low.

Key Features

Feature	Design Value
Dual-channel high-side drive with independent control	Enables compact dual-lamp control (e.g., brake + turn signal) without external isolation or level-shifting.
MultiSense analog feedback (current/VCC/temperature)	Reduces BOM count by eliminating separate current shunts, supply monitors, and thermal sensors in lamp ECU designs.
Configurable latch-off on overtemperature/power limitation	Prevents thermal runaway in sealed housings; FaultRST pin allows OEM-defined recovery strategy (manual reset vs. auto-restart).
Off-state open-load and short-to-VCC detection	Supports automated bulb-out reporting and wiring fault diagnostics without additional circuitry.
Reverse battery protection support	Validated with external GND-line diode network per ISO 16750-2, enabling use in vehicles with unregulated battery systems.

Applications

Automotive Signal Lamps

LED Rear Combination Modules

Use Scenario: Driving incandescent P27W or SAE1156 bulbs in brake/tail lamp assemblies with shared ground.

IC Role / Device Role / Timing Role: High-side switch providing controlled turn-on/turn-off with current ramp limiting to prevent filament shock.

Use Value: On-resistance of 40 mΩ minimizes voltage drop at 5 A, ensuring >11.5 V reaches bulb for full brightness during cold cranking.

Use Scenario: Controlling multiple LED strings (brake, turn, reverse) in a single rear lamp housing with thermal derating.

IC Role / Device Role / Timing Role: Dual-channel driver with integrated chip temperature sensing enables dynamic current reduction before thermal shutdown.

Use Value: ±5% MultiSense temperature accuracy allows precise derating curves, extending LED lifetime by avoiding unnecessary output throttling.

Automotive Body Control Modules (BCM)

Smart Junction Boxes

Use Scenario: Replacing electromechanical relays in door module for courtesy lights and mirror heating control.

IC Role / Device Role / Timing Role: Solid-state high-side switch with diagnostic feedback for predictive maintenance and fault logging.

Use Value: Off-state open-load detection identifies broken wires before customer complaint, reducing warranty claims.

Use Scenario: Centralized power distribution unit managing 12 V loads across chassis with CAN-based diagnostics.

IC Role / Device Role / Timing Role: Dual-channel driver feeding sub-modules; MultiSense data routed via microcontroller ADC for centralized health monitoring.

Use Value: Multiplexed analog output reduces pin count vs. discrete sense lines, simplifying routing in space-constrained junction boxes.

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	Single-channel, 160 mΩ R_ON, no analog current sense - uses digital SPI diagnostics only.	Lacks multiplexed analog feedback; requires external ADC or MCU with high-resolution SAR for current measurement.	Choose when system already has SPI infrastructure and lower channel count suffices; not suitable for retrofitting analog-sense legacy designs.
VND7140AJ-E	Same PowerSSO-16 package, but 70 mΩ R_ON, 25 A current limit, and identical MultiSense architecture.	Higher on-resistance increases conduction loss at >3 A; better suited for lower-power interior lighting vs. high-current rear lamps.	Choose for cost-sensitive interior modules where 34 A capability is unnecessary and thermal margin is less constrained.

Compared with TPS4H160-Q1, VND7040AJ-E offers superior analog diagnostic fidelity and dual-channel integration; versus VND7140AJ-E, it delivers 30% lower R_ON and 36% higher current capability - making it optimal for demanding exterior lamp applications requiring precision thermal management and minimal voltage drop.

Availability

VND7040AJ-E is available at Aetrix Electronics and suitable for automotive signal lamps, LED rear combination modules, and body control modules requiring stable component supply, AEC-Q100 Grade 0 qualification, and long-term production continuity.

Supply support for VND7040AJ-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 capabilities and deep automotive IC expertise since the 1990s.

The VND7040AJ-E belongs to ST's VIPower® M0-7 family of smart power ICs, engineered specifically for automotive load driving with integrated protection, diagnostics, and thermal resilience in harsh environments.

FAQ

What is the maximum transient voltage the VND7040AJ-E can withstand on VCC?

The device supports up to 40 V transient supply voltage per ISO 16750-2 Test B clamping condition (RL = 4 Ω), verified in production testing. This rating applies to single-pulse transients only; sustained overvoltage above 28 V will trigger undervoltage shutdown or clamp activation, protecting downstream loads and internal circuitry.

How does the MultiSense pin distinguish between load current, VCC, and chip temperature?

MultiSense uses time-multiplexed analog output controlled by SEL0/SEL1 inputs: 00 selects proportional load current (1:2000 mirror), 01 selects VCC feedback (scaled 1:5), and 10 selects chip temperature (10 mV/°C). Each mode has distinct timing windows defined in Figure 7 and Figure 8 of the datasheet, requiring synchronized MCU sampling.

Can the FaultRST pin be left unconnected in a design?

No - FaultRST must be actively driven. Per Table 2, leaving it floating is not allowed. It should be pulled high via 15 kΩ resistor to VCC for normal latch-off behavior, or driven low to enable auto-restart mode. An unconnected pin may cause unpredictable fault recovery and violate AEC-Q100 functional safety requirements.

Is reverse battery protection built-in or external?

Reverse battery protection requires external components: a series diode or resistor network in the GND line, as specified in Section 4.1 of the datasheet. The IC itself includes internal negative-voltage clamp on VCC but does not protect against reverse polarity at GND - external implementation is mandatory for ISO 16750-2 compliance.

VND7040AJ-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

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

Series:: VIPower™

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

Switch Type:: General Purpose

Number of Outputs:: 2

Ratio - Input:Output:: 1:1

Output Configuration:: High Side

Output Type:: N-Channel

Interface:: On/Off

Voltage - Load:: 4V ~ 28V

Voltage - Supply (Vcc/Vdd):: Not Required

Current - Output (Max):: 24A

Rds On (Typ):: 40mOhm

Input Type:: Non-Inverting

Features:: Auto Restart, Status Flag

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

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PowerSSO-16

VND7040AJ-E FAQ

1.How can I place an order for VND7040AJ-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VND7040AJ-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 VND7040AJ-E reliable?

The price and inventory of VND7040AJ-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND7040AJ-E is usually 5 days.

3.What payment methods are accepted for VND7040AJ-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND7040AJ-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VND7040AJ-E?

VND7040AJ-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VND7040AJ-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 VND7040AJ-E?

For technical support, including VND7040AJ-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND7040AJ-E requirements.

6.How does Aetrix verify that VND7040AJ-E is sourced from the original manufacturer or authorized distributors?

All VND7040AJ-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 VND7040AJ-E meets industry standards.

7.What is the process for return or replacement of VND7040AJ-E?

All VND7040AJ-E units undergo pre-shipment inspection (PSI). If there is an issue with VND7040AJ-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 VND7040AJ-E part is unused and in its original packaging.

Return procedure for VND7040AJ-E:

1.Submit a request within 90 days.

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

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