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STMicroelectronics EV-VND5T035AK
- Part No.:
- EV-VND5T035AK
- Manufacturer:
- STMicroelectronics
- Package:
- Datasheet:
-
EV-VND5T035AK.pdf
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- EVAL BOARD FOR VND5T035AK
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Product details
Overview
EV-VND5T035AK from STMicroelectronics is a double-channel high-side driver IC with integrated analog current sense, designed for 24 V automotive applications 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 headlight or fan control.
For engineers reviewing the EV-VND5T035AK datasheet, EV-VND5T035AK pinout, EV-VND5T035AK application, or EV-VND5T035AK equivalent, key selection criteria include channel-wise latch-off reset via FR_Stby, ±1 µA input leakage at 25 °C, openload detection in off-state, thermal shutdown at 150 °C, and ISO 7637-2 Pulse 1/2a/3a/4/5b transient compliance with external protection.
Technical Context
This device implements VIPower M0-7 technology with active VCC clamp and dual independent high-side power switches. Each channel integrates undervoltage shutdown (5 V threshold), overvoltage clamp (58–70 V), and self-limiting fast thermal transients via dynamic power limitation.
Diagnostic functions are hardware-based: off-state openload detection (VOL = 2–4 V), short-to-VCC detection (180–1800 µs delay), and proportional current sense with K1 = 1952–4150 (IOUT/ISENSE) across -40 to 150 °C. Fault reset requires a low pulse on FR_Stby - no automatic recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating voltage range | 8–36 V DC - supports full 12 V/24 V automotive battery range including cold-crank and load-dump conditions. |
| On-state resistance (per channel) | 35 mΩ typ. at 25 °C - enables <1 W conduction loss at 5 A, reducing heatsink requirements. |
| Current limitation (typ.) | 42 A - protects against sustained short-circuit faults without external fusing. |
| Supply current (off-state) | 2 µA max. at 24 V - ensures ultra-low standby power for always-on vehicle modules. |
| Thermal shutdown threshold | 150 °C - latches off output until FR_Stby reset, preventing thermal runaway. |
| Current sense ratio (K1) | 1952–4150 (IOUT/ISENSE) - delivers precise analog feedback for closed-loop load monitoring across full temperature range. |
| ISO 7637-2 compliance | Pulse 1 (−450 V), Pulse 2a (37 V), Pulse 3a/b (±150 V), Pulse 4 (−12 V), Pulse 5b (+123 V) - meets automotive EMC requirements with 10 kΩ input protection resistors. |
Pinout & Package
EV-VND5T035AK is housed in PowerSSO-24 package: thermally enhanced exposed-tab SO-24 variant with VCC-connected tab for efficient heat dissipation. Pin 1 is OUT1; pin 24 is GND. The package supports >2 A continuous current per channel with proper PCB copper area (≥8 cm² recommended).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Battery supply input | Connects to 12/24 V rail; internal clamp limits transients to ≤70 V; tab is electrically tied to VCC. |
| OUT1, OUT2 | High-side power outputs | Drive loads between VCC and GND; each supports 42 A short-circuit limit and 35 mΩ RON. |
| GND | Ground reference | Return path for logic, sense, and power circuits; must be low-impedance to avoid sensing errors. |
| IN1, IN2 | CMOS-compatible control inputs | Hysteresis of 0.25 V prevents noise-induced switching; VIH = 2.1 V, VIL = 0.9 V. |
| CS1, CS2 | Analog current sense outputs | Deliver ISENSE ∝ IOUT (K1–K3 ratios); fault condition raises VSENSEH to 7.5–9.5 V. |
| FR_Stby | Fault reset & standby enable | Low pulse resets latch-off; all inputs + FR_Stby low → standby mode (2 µA IS). |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent high-side channels | Each channel operates autonomously with separate IN/CS/FR_Stby interaction - enables asymmetric load control in BCMs. |
| Proportional analog current sense | K1/K2/K3 ratios calibrated across -40 to 150 °C - eliminates need for external shunt + op-amp in precision load monitoring. |
| Off-state openload detection | VOL = 2–4 V threshold - identifies broken-wire faults before power-up, critical for safety-critical lighting systems. |
| Short-to-VCC detection | 180–1800 µs response - distinguishes hard shorts from inductive kickback, preventing false latch-off during relay coil de-energization. |
| AEC-Q100 Grade 0 qualification | -40 to +150 °C operation - certified for under-hood applications including engine bay fan drivers. |
Applications
| Headlight Control Module | Electric Fan Driver |
|---|---|
Use Scenario: Driving halogen or LED headlight bulbs in modern automotive front-end modules with PWM dimming and diagnostics. IC Role / Device Role / Timing Role: High-side switch providing controlled 24 V power delivery; current sense enables real-time bulb health monitoring and open-circuit detection. Use Value: Eliminates discrete fuse + sense resistor + comparator; reduces BOM count by 4 components while enabling ASAM-compliant diagnostic logging. | Use Scenario: Controlling brushed DC cooling fans in engine compartments where ambient temperatures exceed 105 °C. IC Role / Device Role / Timing Role: Dual-channel driver powering two fans simultaneously; thermal shutdown and latch-off prevent fan stall damage during overheating events. Use Value: Enables single-package dual-fan control with built-in overtemperature protection - avoids need for external thermal sensors and logic gates. |
| Seat Heater Actuation | Power Window Motor Control |
Use Scenario: Managing resistive heating elements in automotive seats with soft-start and current-limited ramp-up. IC Role / Device Role / Timing Role: High-side switch delivering regulated current; current sense provides closed-loop ramp control and overload cutoff. Use Value: Achieves <500 ms heater ramp time with <±5% current accuracy - meets OEM thermal comfort specifications without microcontroller PID tuning. | Use Scenario: Driving reversible DC motors in four-door power window systems with direction control and anti-pinch detection. IC Role / Device Role / Timing Role: One channel drives motor forward, the other reverse; CS pins feed current data to MCU for torque-based obstacle detection. Use Value: Enables compliant anti-pinch functionality using only analog current feedback - avoids costly Hall-effect sensor + encoder 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 |
|---|---|---|---|
| VND5E025AK-E | Lower RON (25 mΩ), same PowerSSO-24, but 25 A ILIM (vs. 42 A) | Suitable for lower-power loads (e.g., interior lamps); insufficient for 40 A fan motors | Select when peak load current ≤25 A and thermal margin is constrained. |
| TPS4H160-Q1 | Single-channel, 160 mΩ RON, integrated watchdog timer, SPI interface | Requires external current sense; lacks analog CS output and openload detection in off-state | Choose for systems needing functional safety (ASIL-B) and diagnostics via serial bus instead of analog feedback. |
Compared with VND5E025AK-E, EV-VND5T035AK offers 68% higher current capability and superior off-state diagnostics; versus TPS4H160-Q1, it provides direct analog current feedback and dual-channel integration but lacks watchdog or SPI - making it optimal for cost-sensitive, analog-diagnostic-focused 24 V body electronics.
Availability
EV-VND5T035AK is available at Aetrix Electronics and suitable for automotive body control modules, electric cooling systems, seat heater actuation, and power window motor control requiring stable component supply across extended temperature ranges and stringent EMC environments.
Supply support for EV-VND5T035AK 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 manufacturing scale and AEC-Q100 validation infrastructure.
This device belongs to ST's VIPower high-side driver product line, engineered specifically for robust, diagnostic-rich 12 V/24 V automotive load switching - emphasizing latch-off protection, analog current feedback, and ISO 7637-2 transient resilience.
FAQ
What is the minimum pulse width required on FR_Stby to reset a latched channel?
The datasheet specifies treset = 2–24 µs - a low-level pulse ≥2 µs on FR_Stby is sufficient to clear overload or thermal shutdown latch-off. This timing is guaranteed across -40 to 150 °C and does not require synchronization with IN signals. Pulses shorter than 2 µs may fail to reset, especially at high junction temperatures.
Can CS1 and CS2 be connected to the same ADC input through a multiplexer?
No - CS pins deliver current-mode outputs (not voltage), requiring dedicated current-to-voltage conversion per channel. Connecting them to one ADC input risks cross-talk and invalidates K1/K2/K3 calibration. Each CS pin must use its own 3.9 kΩ sense resistor to ground and separate op-amp buffer to preserve ±1% current measurement accuracy.
Does the device support PWM switching above 1 kHz?
Yes - turn-on/off delays are 46 µs and 54 µs respectively, supporting PWM frequencies up to ~8 kHz with >10% duty cycle resolution. However, switching losses (WON = 1 mJ, WOFF = 0.65 mJ) increase significantly above 5 kHz; thermal design must account for cumulative energy dissipation in repetitive PWM operation.
How is openload detection implemented during power-off conditions?
Openload is detected in off-state (IN = low) by monitoring VOUT voltage: if VOUT rises above VOL (2–4 V) while IN is low and FR_Stby = 5 V, the device asserts VSENSEH on CS pin. This occurs due to internal pull-up and leakage current paths - no external bias is needed, enabling wire-break detection before system boot.
EV-VND5T035AK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- VIPower™
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Power Management
- Function:
- High Side Driver (Internal FET)
- Embedded:
- -
- Utilized IC / Part:
- VND5T035AK
- Primary Attributes:
- 2-Channel (Dual)
- Secondary Attributes:
- -
- Contents:
- Board(s)
EV-VND5T035AK FAQ
1.How can I place an order for EV-VND5T035AK through Aetrix?
Please submit a Request for Quotation (RFQ) for EV-VND5T035AK 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 EV-VND5T035AK reliable?
The price and inventory of EV-VND5T035AK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EV-VND5T035AK is usually 5 days.
3.What payment methods are accepted for EV-VND5T035AK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EV-VND5T035AK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EV-VND5T035AK?
EV-VND5T035AK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EV-VND5T035AK 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 EV-VND5T035AK?
For technical support, including EV-VND5T035AK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EV-VND5T035AK requirements.
6.How does Aetrix verify that EV-VND5T035AK is sourced from the original manufacturer or authorized distributors?
All EV-VND5T035AK 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 EV-VND5T035AK meets industry standards.
7.What is the process for return or replacement of EV-VND5T035AK?
All EV-VND5T035AK units undergo pre-shipment inspection (PSI). If there is an issue with EV-VND5T035AK, 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 EV-VND5T035AK part is unused and in its original packaging.
Return procedure for EV-VND5T035AK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
EV-VND5T035AK Tags
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BOB-12009
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106990290
Seeed Technology Co., Ltd
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BOB-11771
SparkFun Electronics
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BOB-09118
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4410
Adafruit Industries LLC
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5335
Adafruit Industries LLC
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BOB-11189
SparkFun Electronics
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3295
Adafruit Industries LLC
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3421
Adafruit Industries LLC
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1904
Adafruit Industries LLC
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2717
Adafruit Industries LLC
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Adafruit Industries LLC
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