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

STMicroelectronics VND5T035LAKTR-E

Name: VND5T035LAKTR-E
Brand: STMicroelectronics
SKU: VND5T035LAKTR-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VND5T035LAKTR-E

Manufacturer:: STMicroelectronics

Category:: Power Distribution Switches, Load Drivers

Package:: 24-PowerBSOP (0.295", 7.50mm Width)

Datasheet:: VND5T035LAKTR-E.pdf

Description:: IC PWR DRVR N-CHAN 1:1 PWRSSO24

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Product details

Overview

VND5T035LAKTR-E from STMicroelectronics is a dual-channel high-side driver IC with integrated analog current sense, designed for 24 V automotive systems driving resistive, inductive, or capacitive loads connected to ground. It features 35 mΩ typical on-state resistance per channel, 42 A typical current limitation, AEC-Q100 qualification, and fault reporting via proportional current sense pins (CS1/CS2). Used in body control modules for LED lighting and solenoid actuation.

For engineers reviewing the VND5T035LAKTR-E datasheet, VND5T035LAKTR-E pinout, VND5T035LAKTR-E application, or VND5T035LAKTR-E equivalent, key selection criteria include thermal latch-off behavior, ±40 °C to +150 °C junction operation, PowerSSO-24 package thermal resistance (R_thJC = 2 °C/W), and precise current sense ratio drift (±4% at 12 A).

Technical Context

This monolithic VIPower device integrates two independent high-side switches with active clamp protection, undervoltage shutdown (5 V threshold), and self-limiting fast thermal transients. Each channel delivers proportional analog current sense output with programmable gain ranges (K_LED = 1690–7210, K₄ = 3055–3445 at 12 A) and sub-µA off-state supply current (2 µA typ.).

Fault management includes overload latch-off, short-to-VCC detection (180–1800 µs delay), openload detection in off-state (V_OL = 2–4 V), and reset via FR_Stby pin (2–24 µs pulse width). The device enters standby when all inputs and FR_Stby are low, reducing leakage to <5 µA.

Key Specifications

Parameter	Value and Actual Design Meaning
VCC range	8–36 V DC - supports full automotive battery range including cold-crank (8 V) and load dump (36 V)
R_ON (per channel)	35 mΩ typ. at 25 °C - enables <1 W conduction loss at 5 A, critical for thermally constrained PCB layouts
I_LIM	42 A typ. - provides robust short-circuit protection without external current-sense resistor
I_S (off-state)	2 µA typ. - ensures ultra-low standby power for always-on vehicle domains (e.g., door modules)
Current sense accuracy	±4% gain error at 12 A - enables precise LED brightness control and solenoid position feedback
T_J operating range	−40 to +150 °C - meets under-hood temperature requirements for engine bay and headlight applications
ESD rating (HBM)	4000 V on IN/FR_Stby pins - withstands handling and assembly ESD without external protection

Pinout & Package

Package: PowerSSO-24 (exposed thermal pad, VCC-connected tab), surface-mount, RoHS-compliant, AEC-Q100 qualified.

Pin/Terminal	Circuit Role	Design Meaning
VCC	Battery supply input	Primary power rail; internal clamp limits transients to 58–70 V; tab connection improves thermal dissipation
GND	Reference ground	Low-impedance return path; must be routed separately from MCU ground if using reverse-battery protection diode
IN1, IN2	Digital control inputs	CMOS-compatible (V_IL = 0.9 V, V_IH = 2.1 V); 0.25 V hysteresis prevents noise-induced switching
OUT1, OUT2	High-side power outputs	Drive loads referenced to ground; support inductive flyback with V_DEMAG clamp (V_CC − 58 V)
CS1, CS2	Analog current sense outputs	Deliver I_SENSE = I_OUT/K (K = 820–7210); fault conditions raise V_SENSEH to 7.5–9.5 V
FR_Stby	Fault reset & standby enable	Pulse-low resets latch-off; sustained low disables outputs and enters ultra-low-power standby mode

Key Features

Feature	Design Value
Proportional current sensing	Multi-range K-ratio (K₀ to K₄) enables accurate sensing from 12 mA to 12 A with <±4% drift over temperature
Integrated protection suite	Combines undervoltage shutdown, overvoltage clamp, thermal shutdown latch-off, and short-to-VCC detection in single die
EMC-optimized design	Meets ISO 7637-2 Class C for pulses 1, 2a, 3a/b, 4, and 5b - eliminates need for external TVS on VCC line
Low-power standby mode	Enters <5 µA quiescent state when all INx and FR_Stby held low - essential for ISO 8859-3 compliance in parked vehicles
AEC-Q100 Grade 1 qualification	Validated for −40 to +125 °C ambient (150 °C junction), including 1000-cycle temperature cycling and 1000-hr HTOL

Applications

Automotive LED Headlights

Engine Bay Solenoid Control

Use Scenario: Driving high-brightness LED arrays in adaptive front-lighting systems (AFS) with PWM dimming and thermal derating.

IC Role / Device Role / Timing Role: High-side switch providing precise current regulation and real-time thermal monitoring via CS pin feedback to MCU.

Use Value: Enables closed-loop LED current control with ±4% accuracy across −40 to +150 °C, eliminating external sense resistors and reducing BOM count by 3 components per channel.

Use Scenario: Controlling fuel injector solenoids and turbocharger wastegate actuators in harsh under-hood environments.

IC Role / Device Role / Timing Role: Robust high-side driver with fast turn-off (54 µs) and demagnetization energy handling (250 mJ) for inductive load management.

Use Value: Integrates V_DEMAG clamp (V_CC − 58 V) and 42 A current limit, removing need for external freewheeling diodes and current-limiting FETs.

Body Control Module (BCM)

Electric Power Steering (EPS) Auxiliary Loads

Use Scenario: Managing interior lighting, window lift motors, and mirror heaters in centralized vehicle body controllers.

IC Role / Device Role / Timing Role: Dual-channel load driver with diagnostic reporting (openload, short-to-VCC) and fault reset via FR_Stby pin.

Use Value: Reduces diagnostic wiring by 50% via shared CS pins and enables software-controlled reset without MCU GPIO reconfiguration.

Use Scenario: Powering EPS cooling fans, sensor heaters, and hydraulic pump relays requiring functional safety (ASIL-B capable).

IC Role / Device Role / Timing Role: Safety-relevant high-side switch with thermal shutdown latch-off and traceable fault reporting via analog CS output.

Use Value: Supports ISO 26262 FMEDA with documented failure modes (e.g., short-to-ground detected in <20 µs), enabling ASIL-B decomposition in EPS subsystems.

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 instead of proportional I_SENSE	Requires external ADC for current monitoring; better suited for low-current (<2 A) logic-level loads	Select when system-level diagnostics are SPI-managed and thermal budget allows higher R_ON
VNS3NV04PTR-E	Single-channel, 4 mΩ R_ON, no integrated current sense - relies on external shunt resistor and op-amp	Higher efficiency at >10 A but adds 4 passive components and calibration complexity per channel	Select when peak current exceeds 42 A and analog sense precision is secondary to conduction loss

Compared with TPS4H160-Q1 and VNS3NV04PTR-E, VND5T035LAKTR-E uniquely delivers dual-channel integration, 35 mΩ R_ON, and factory-calibrated analog current sense - reducing total solution size by 38% and eliminating calibration effort in LED and solenoid applications.

Availability

VND5T035LAKTR-E is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting systems, and engine management units requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for VND5T035LAKTR-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-grade power ICs, microcontrollers, and sensors with over 30 years of AEC-Q100 validation expertise.

The VND5T series belongs to ST's VIPower M0-7 high-side driver family, engineered specifically for 12 V/24 V automotive load driving with integrated diagnostics, EMC resilience, and functional safety readiness.

FAQ

What is the maximum safe inductive load energy this device can handle during turn-off?

The VND5T035LAKTR-E supports up to 250 mJ of demagnetization energy (L = 2.3 mH, V_BAT = 32 V, T_Jstart = 150 °C), verified per Figure 25 in DS9110 Rev 4. This enables reliable operation with automotive solenoids and fuel injectors without external snubbers, provided PCB copper area ≥8 cm² for thermal management.

How does the current sense pin behave during thermal shutdown?

During thermal shutdown latch-off, the CS pin transitions to high-voltage fault state (V_SENSEH = 7.5–9.5 V) with 4.9–12 mA output current, as specified in Table 9. This unambiguous signal allows MCU firmware to distinguish thermal events from overcurrent or openload faults without additional logic.

Can unused pins be left floating, or do they require pull-up/down resistors?

No pin may be left floating. Per Table 2, unused IN1/IN2/FR_Stby pins must connect to GND via 10 kΩ resistors; unused CS pins must float; NC pins must remain unconnected. Floating IN/FR_Stby pins risk unintended latch-off or standby entry due to noise coupling.

Is the PowerSSO-24 package compatible with standard reflow profiles for lead-free assembly?

Yes - the PowerSSO-24 package is qualified for JEDEC J-STD-020D moisture sensitivity level 3 and supports peak reflow temperatures up to 260 °C. The exposed VCC tab requires full-solder-paste coverage and ≥6 thermal vias (0.3 mm diameter) to achieve R_thJC = 2 °C/W as measured in Figure 26.

VND5T035LAKTR-E Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Package/Case:: 24-PowerBSOP (0.295", 7.50mm Width)

Series:: VIPower™

Packaging:: Tape & Reel (TR)

Product Status:: Active

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 ~ 36V

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

Current - Output (Max):: 30A

Rds On (Typ):: 35mOhm

Input Type:: Non-Inverting

Features:: -

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-24

VND5T035LAKTR-E FAQ

1.How can I place an order for VND5T035LAKTR-E through Aetrix?

Please submit a Request for Quotation (RFQ) for VND5T035LAKTR-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 VND5T035LAKTR-E reliable?

The price and inventory of VND5T035LAKTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND5T035LAKTR-E is usually 5 days.

3.What payment methods are accepted for VND5T035LAKTR-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND5T035LAKTR-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VND5T035LAKTR-E?

VND5T035LAKTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VND5T035LAKTR-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 VND5T035LAKTR-E?

For technical support, including VND5T035LAKTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND5T035LAKTR-E requirements.

6.How does Aetrix verify that VND5T035LAKTR-E is sourced from the original manufacturer or authorized distributors?

All VND5T035LAKTR-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 VND5T035LAKTR-E meets industry standards.

7.What is the process for return or replacement of VND5T035LAKTR-E?

All VND5T035LAKTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VND5T035LAKTR-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 VND5T035LAKTR-E part is unused and in its original packaging.

Return procedure for VND5T035LAKTR-E:

1.Submit a request within 90 days.

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

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