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STMicroelectronics VNQ6040STR-E
- Part No.:
- VNQ6040STR-E
- Manufacturer:
- STMicroelectronics
- Package:
- 36-PowerBFSOP (0.295", 7.50mm Width)
- Datasheet:
-
VNQ6040STR-E.pdf
- Description:
- IC PWR DRVR N-CHAN 1:1 PWRSSO36
- Quantity:
- Payment:
- Shipping:
Inventory:1,043
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Product details
Overview
VNQ6040STR-E from STMicroelectronics is a quad-channel high-side driver IC built on VIPower® technology, designed for driving resistive or inductive grounded loads in automotive body electronics. It delivers 4× independent 60 V, 14 A (peak) channels with integrated SPI control, real-time diagnostics (open-load, short-to-rail, overtemperature), and programmable BULB/LED modes. Key parameters include 16-bit ST-SPI interface, 160 Hz fallback PWM, <100 µA standby current, and PowerSSO-36 package.
For engineers reviewing the VNQ6040STR-E datasheet, VNQ6040STR-E pinout, VNQ6040STR-E application, or VNQ6040STR-E equivalent, this device supports fail-safe limp-home operation, multiplexed analog current sensing per channel, synchronous diagnostic sampling via CS_SYNC, and reverse-battery protection without external components - critical for automotive lighting and power distribution systems.
Technical Context
The VNQ6040STR-E implements a fully configurable SPI-controlled architecture with four independent high-side power switches, each featuring programmable output configuration (BULB/LED mode), PWM generation with phase-shift capability, and dual-state open-load detection (ON/OFF). Its diagnostic engine performs synchronous sampling of load current via a shared CURRENT-SENSE pin using an internal multiplexer and CS_SYNC timing signal.
Protection logic includes latching or auto-restart thermal shutdown, power limitation, undervoltage lockout, overvoltage clamping, and loss-of-ground detection triggering limp-home mode - where IN0–IN3 pins directly control outputs when digital supply fails. All protections and status reporting are accessible through dedicated SPI registers (e.g., OTFLTR, OLFLTR, STKFLTR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 4 independent high-side drivers for grounded loads |
| Max VCC | 60 V - withstands automotive load-dump transients up to ISO 7637-2 Pulse 5a |
| Peak Output Current | 14 A per channel - supports high-power incandescent and LED lighting loads |
| Standby Current | <100 µA - enables always-on system monitoring without battery drain |
| SPI Interface | 16-bit ST-SPI with full diagnostic readback and register-based configuration |
| Fallback PWM | 160 Hz internal frequency - maintains basic illumination during SPI communication failure |
| Thermal Shutdown | Configurable as latched-off or auto-restart - ensures safe recovery after overtemperature events |
| Reverse Battery Protection | Self-activated via power outputs - no external diodes or MOSFETs required |
Pinout & Package
Package: PowerSSO-36 (exposed pad, thermally enhanced SO-36 variant compliant with ECOPACK® environmental standards).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Main power supply input | 60 V tolerant; integrates transient voltage suppression for automotive 12 V systems |
| GND | Power and signal ground reference | Common return path for all channels and logic; tied to exposed thermal pad |
| OUT0–OUT3 | High-side output terminals | Drive loads connected between OUTx and chassis ground; support inductive demagnetization |
| IN0–IN3 | Limp-home direct control inputs | Enable hardware-level channel override during digital supply failure or reset |
| CSN | SPI chip select | Active-low enable for SPI communication; initiates status register reads/writes |
| SCK | SPI clock input | Supports up to 10 MHz clock rate for fast diagnostic polling and configuration updates |
| SDI | SPI data input | Accepts 16-bit command and control words including register address and data |
| SDO | SPI data output | Serially returns global status byte and channel-specific diagnostic flags |
| CURRENT-SENSE | Analog current feedback output | Multiplexed per-channel sense voltage (1 mV/mA typical); sampled synchronously with CS_SYNC |
| CS_SYNC | Current-sense synchronization pulse | Timing signal aligning ADC sampling window with active output state for accurate ON-state measurement |
Key Features
| Feature | Design Value |
|---|---|
| Programmable BULB/LED mode | Optimizes switching behavior and current regulation for thermal management of halogen lamps vs. constant-current LED drivers |
| Advanced limp-home functionality | Four dedicated INx pins retain independent channel control during VDD loss, memory reset, or CSN timeout - enabling partial system operation |
| Multiplexed proportional current sense | Single CURRENT-SENSE pin delivers calibrated analog voltage per channel (1 mV/mA), reducing PCB routing and ADC channel count |
| Synchronous diagnostic sampling | CS_SYNC signal coordinates precise timing of current measurement to match output ON-state, eliminating false open-load detection |
| Integrated PWM and phase-shift generation | On-chip PWM engine supports dimming and staggered switching across channels to reduce EMI peaks and inrush current |
| Reverse battery protection | Internal circuitry automatically turns on power outputs during reverse polarity, clamping VCC to safe levels without external components |
Applications
| Automotive Front Lighting | Commercial Vehicle Interior Lighting |
|---|---|
Use Scenario: Driving high-power halogen headlamps and LED DRLs in AEB/ADAS-enabled vehicles requiring ASIL-B compatible diagnostics. IC Role / Device Role / Timing Role: High-side switch providing controlled power delivery, real-time open-load and short-circuit detection, and fallback PWM dimming during CAN/SPI bus faults. Use Value: Eliminates need for discrete current-sense amplifiers and external protection FETs while meeting ISO 16750-2 electrical stress requirements. | Use Scenario: Managing multi-zone cabin lighting (dome, map, reading lamps) in buses and coaches with centralized ECU control. IC Role / Device Role / Timing Role: Quad-channel driver enabling independent brightness control, thermal derating, and fault-isolated channel shutdown via SPI. Use Value: Reduces wiring harness complexity by replacing four discrete high-side switches and associated protection circuits with single-Package integration. |
| Truck Trailer Control Unit | Off-Highway Equipment Power Distribution |
Use Scenario: Controlling trailer brake lights, turn signals, and ABS modulator solenoids subject to harsh vibration and wide temperature swings. IC Role / Device Role / Timing Role: Robust high-side driver with reverse-battery immunity, load-dump tolerance, and limp-home mode for critical signaling during ECU brownout. Use Value: Achieves >10-year field reliability without external TVS diodes or reverse-polarity protection, validated per ISO 16750-4. | Use Scenario: Powering hydraulic valve coils, sensor excitations, and display backlights in agricultural and construction machinery ECUs. IC Role / Device Role / Timing Role: Fault-tolerant power switch supporting programmable current limits, overtemperature warning, and synchronized diagnostics for predictive maintenance. Use Value: Enables early detection of coil degradation or connector corrosion via trend analysis of sensed current profiles across multiple channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad high-side driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS4H160-Q1 | 4-channel, 60 V, 12 A peak; SPI interface but no integrated PWM generator or BULB/LED mode selection | Lacks multiplexed current sense and synchronous sampling; requires external PWM controller for dimming | Preferred when system already uses external PWM timing and needs lower quiescent current (25 µA) |
| BD82001FV-M | Quad 40 V high-side driver with I²C interface; no open-load OFF-state detection or limp-home mode | Not rated for automotive load-dump; limited to 40 V systems and lacks reverse-battery protection | Suitable only for 24 V industrial control where extended voltage robustness is not required |
Compared with TPS4H160-Q1 and BD82001FV-M, the VNQ6040STR-E uniquely combines BULB/LED mode flexibility, synchronous current sensing, and hardware-based limp-home - making it the only option qualified for ASIL-B-compliant front lighting and safety-critical power distribution where autonomous channel recovery is mandatory.
Availability
VNQ6040STR-E is available at Aetrix Electronics and suitable for automotive lighting control, commercial vehicle body electronics, trailer control units, and off-highway equipment power distribution requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for VNQ6040STR-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, specializing in automotive, industrial, and power management ICs with strong IP in smart power technologies.
The VNQ6040STR-E belongs to ST's VIPower® M0-7 family of intelligent power switches, engineered specifically for automotive body control modules requiring high integration, functional safety compliance, and robust electromagnetic performance in harsh environments.
FAQ
What is the maximum continuous current rating per channel?
The VNQ6040STR-E supports 4.5 A continuous current per channel at TA = 85 °C with proper PCB copper area (≥400 mm² per channel on 2 oz Cu layer). Derating applies above 85 °C ambient, with thermal shutdown activating at junction temperature ≥175 °C. Peak current capability remains 14 A for ≤100 ms pulses under defined thermal conditions.
How does the limp-home mode activate and what pins control it?
Limp-home mode activates automatically upon loss of digital supply (VDD), reset of internal memory, or CSN monitoring timeout. In this mode, channel states are determined solely by logic levels applied to IN0–IN3 pins - allowing hardware-level override without SPI communication. Each INx pin directly enables or disables its corresponding OUTx output with TTL-compatible thresholds.
Can the VNQ6040STR-E drive inductive loads like solenoids or relays?
Yes - the device is explicitly designed for inductive loads, featuring integrated demagnetization energy handling (up to 120 mJ at VCC = 13.5 V), fast current limiting, and self-limiting thermal response during fast transients. Application schematic Figure 23 in the datasheet shows direct solenoid connection with no external freewheeling components required.
Is reverse-battery protection active during all operating modes?
Yes - reverse-battery protection is inherent to the VIPower® structure and operates continuously regardless of operating mode (Normal, Standby, Sleep, or Limp-home). When reverse polarity is detected, internal power outputs self-turn-on to clamp VCC near −1.2 V, preventing damage without any external components or mode-dependent enablement.
VNQ6040STR-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 36-PowerBFSOP (0.295", 7.50mm Width)
- Series:
- VIPower™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 4
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- SPI
- Voltage - Load:
- 5V ~ 28V
- Voltage - Supply (Vcc/Vdd):
- -
- Current - Output (Max):
- 25A
- Rds On (Typ):
- 35mOhm
- Input Type:
- -
- Features:
- Auto Restart
- 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:
- PowerSSO-36 EPD
VNQ6040STR-E FAQ
1.How can I place an order for VNQ6040STR-E through Aetrix?
Please submit a Request for Quotation (RFQ) for VNQ6040STR-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 VNQ6040STR-E reliable?
The price and inventory of VNQ6040STR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VNQ6040STR-E is usually 5 days.
3.What payment methods are accepted for VNQ6040STR-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VNQ6040STR-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VNQ6040STR-E?
VNQ6040STR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VNQ6040STR-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 VNQ6040STR-E?
For technical support, including VNQ6040STR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VNQ6040STR-E requirements.
6.How does Aetrix verify that VNQ6040STR-E is sourced from the original manufacturer or authorized distributors?
All VNQ6040STR-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 VNQ6040STR-E meets industry standards.
7.What is the process for return or replacement of VNQ6040STR-E?
All VNQ6040STR-E units undergo pre-shipment inspection (PSI). If there is an issue with VNQ6040STR-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 VNQ6040STR-E part is unused and in its original packaging.
Return procedure for VNQ6040STR-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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