STMicroelectronics VND920TR-E
- Part No.:
- VND920TR-E
- Manufacturer:
- STMicroelectronics
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
VND920TR-E.pdf
- Description:
- IC PWR DRIVER N-CHANNEL 1:1 28SO
- Quantity:
- Payment:

- Shipping:

Inventory:2,032
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Product details
Overview
VND920TR-E from STMicroelectronics is a dual-channel high-side solid-state relay (HSD) built on VIPower M0-3 technology, designed for automotive and industrial loads with one side grounded. It delivers 35 A per channel, features 16 mΩ RDS(on) at 10 A/25°C, integrated analog current sense (K = 4400 ±8% @10 A), and comprehensive protection including thermal shutdown (TTSD = 150–200°C), overvoltage clamp (41–55 V), and reverse battery tolerance. Used in body control modules for headlamp and fan drivers.
For engineers reviewing the VND920TR-E datasheet, VND920TR-E pinout, VND920TR-E application, or VND920TR-E equivalent, this page provides verified electrical parameters, SO-28 double-island package layout, real-world protection behavior under ISO 7637 transients, and validated alternatives for high-current 12 V/24 V automotive switching.
Technical Context
The device integrates two independent high-side power switches with CMOS-compatible inputs, each featuring active current limiting, thermal foldback, and automatic restart after fault clearance. Its dual-island SO-28 package isolates thermal paths between channels to prevent cross-talk during overload.
Protection logic combines voltage-based triggers (VUSD = 3–5.5 V undervoltage, VOV = 36 V overvoltage) with current-sense-derived diagnostics (ISENSE output scaled to IOUT) and junction temperature monitoring (TTSD/TR hysteresis = 7–15°C). All protections feed back through the current sense pin for software-read fault status.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) | 15–30 mΩ max per channel at 10 A/25°C - enables low conduction loss and <1 W dissipation at 35 A continuous. |
| IOUT Continuous | 35 A per channel - supports high-power solenoids, motors, and lighting without external heatsinking on 6 cm² copper. |
| VCC Range | 5.5–36 V DC - covers full automotive battery range including cold-crank (5.5 V) and load-dump (36 V). |
| Current Sense Ratio K | 4400 ±8% @10 A - delivers 2.27 mA sense current per ampere of load, enabling accurate closed-loop current monitoring. |
| Thermal Shutdown Threshold | 150–200°C - activates automatic turn-off before silicon damage; reset occurs at 135°C for safe recovery. |
| ISO 7637 Pulse Immunity | Level IV compliant (±100 V, 2 ms, 10 Ω) - survives harsh vehicle electrical environments without external clamping. |
| tD(on/off) | 50 µs typical - ensures precise timing control for PWM-driven actuators and diagnostic pulse testing. |
Pinout & Package
Package: SO-28 Double Island (PowerSO-10™ compatible footprint), 18.1 mm × 10.65 mm × 2.65 mm, with isolated thermal islands for independent channel thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC1, VCC2 | Channel 1 & 2 Power Supply Inputs | Accept 5.5–36 V; internally clamped to 41–55 V; must be connected to PCB copper area ≥1 cm² per island for thermal compliance. |
| GND1, GND2 | Channel 1 & 2 Ground Returns | Separate ground pins enable loss-of-ground detection; open-circuit triggers immediate channel disable. |
| INPUT1, INPUT2 | CMOS-Compatible Control Inputs | VIH = 3.25 V, VIL = 1.25 V, hysteresis = 0.5 V - immune to noise in noisy automotive harnesses. |
| OUTPUT1, OUTPUT2 | High-Side Switched Outputs | Drive grounded loads; support inductive demagnetization via internal Vdemag clamp (VCC−41 V). |
| CURRENT SENSE 1, 2 | Analog Current Monitor Outputs | Deliver ISENSE = IOUT/K; used for real-time load monitoring, short-circuit detection, and thermal derating. |
| NC (Pins 13, 14, 27, 28) | No-Connect Terminals | Internally unconnected; must remain floating per datasheet Figure 4 configuration diagram. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse Battery Protection | Withstands −100 V on VCC (per ISO 7637 Pulse 1); requires external RGND or DGND network per Figure 7. |
| Loss-of-Ground Detection | Automatic channel shutdown if GND1/GND2 disconnect - prevents latch-up and unsafe floating outputs. |
| Proportional Current Sense | Factory-trimmed K ratio with ±8% drift over −40°C to +150°C - eliminates need for external shunt calibration. |
| Overvoltage Clamp + Shutdown | Clamps transients to 41–55 V while simultaneously asserting fault via ISENSE high-level signal. |
| Very Low Standby Dissipation | ICC = 10 µA max off-state - suitable for always-on modules like gateway ECUs with strict quiescent current budgets. |
Applications
| Automotive Headlamp Control | Engine Cooling Fan Driver |
|---|---|
|
Use Scenario: PWM-controlled halogen/LED headlamps requiring precise current regulation and short-circuit resilience. IC Role / Device Role / Timing Role: High-side switch with real-time current feedback for closed-loop brightness control and LED open-wire detection. Use Value: Eliminates discrete sense resistor and comparator; 16 mΩ RDS(on) reduces thermal stress vs. mechanical relays. |
Use Scenario: 12 V/24 V brushless cooling fan driving in engine bay with wide ambient temperature swing (−40°C to +125°C). IC Role / Device Role / Timing Role: High-current HSD with integrated thermal foldback to prevent runaway during stalled-fan conditions. Use Value: Thermal shutdown + automatic restart avoids permanent fan lockup; ISO 7637 immunity removes need for TVS on VCC. |
| Body Control Module (BCM) Power Distribution | Industrial Solenoid Actuator Interface |
|
Use Scenario: Centralized power switching for door locks, mirrors, and seat motors in modern BCMs. IC Role / Device Role / Timing Role: Dual-channel load driver with individual current sense for diagnostics and load identification. Use Value: Reduces BOM count by replacing two discrete HSDs + two sense amps; NCV-rated pinout simplifies PCB routing. |
Use Scenario: 24 V DC solenoid control in factory automation systems exposed to EMI and supply transients. IC Role / Device Role / Timing Role: Robust high-side interface with demagnetization clamp (Vdemag = VCC−41 V) for inductive kick suppression. Use Value: Internal clamp replaces external flyback diode; 35 A rating handles peak inrush of large solenoids without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32F0B | Integrated 3-phase gate driver + ARM Cortex-M0, no analog current sense output; RDS(on) = 350 mΩ per half-bridge. | Targeted at BLDC motor control, not simple on/off loads; requires firmware development. | Select when needing embedded motor commutation logic; avoid for basic relay replacement. |
| VNS7NV04PTR-E | Single-channel 40 V/7 A HSD with 35 mΩ RDS(on); no current sense, no thermal hysteresis, lower current rating. | Limited to low-power solenoids or lamps; lacks diagnostic capability for predictive maintenance. | Select for cost-sensitive, low-current applications where diagnostics are unnecessary. |
Compared with VND920TR-E, STSPIN32F0B adds MCU functionality but sacrifices analog current monitoring and dual-channel integration, while VNS7NV04PTR-E reduces system complexity but eliminates critical diagnostics and thermal management for high-reliability automotive use.
Availability
VND920TR-E is available at Aetrix Electronics and suitable for automotive body electronics, industrial actuator control, and 24 V DC power distribution systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for VND920TR-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, industrial, and power management ICs with vertical manufacturing and AEC-Q100 qualification expertise.
VND920TR-E belongs to ST's VIPower® high-side driver product line, engineered specifically for robust, diagnostic-capable switching in harsh automotive environments where reliability and functional safety are mandatory.
FAQ
What is the maximum continuous current per channel at 100°C case temperature?
At Tc = 100°C, the device supports 25 A continuous per channel, derated from 35 A at 25°C using the RDS(on) vs. Tc curve (Figure 11) and thermal resistance data (Rthj-amb = 45°C/W for one chip ON on 6 cm² copper). This assumes proper PCB copper area and no airflow.
How does the current sense output behave during thermal shutdown?
During thermal shutdown, the current sense pin (CURRENT SENSE n) outputs VSENSEH = 5.5 V (typical) with 400 Ω output impedance, signaling overtemperature condition to the microcontroller. This high-voltage flag remains active until junction temperature drops below TR = 135°C, at which point normal proportional sensing resumes.
Can VND920TR-E drive inductive loads without external flyback components?
Yes - it includes an internal Vdemag clamp (VCC−41 V) that safely dissipates inductive energy during turn-off. For L = 6 mH and IOUT = 2 A, Vdemag = VCC−41 V ensures voltage stays within safe limits, eliminating need for external diodes in most automotive solenoid and relay coil applications.
Is the SO-28 double-island package pin-compatible with standard SO-28 footprints?
No - the SO-28 double-island variant has identical outer dimensions but electrically isolated thermal islands requiring separate copper pours for VCC1/GND1 and VCC2/GND2. Standard SO-28 layouts will short the islands; PCB design must follow Figure 4's suggested connections and Table 16 mechanical data for correct thermal decoupling.
VND920TR-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Series:
- VIPower™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 5.5V ~ 36V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 30A
- Rds On (Typ):
- 15mOhm (Max)
- Input Type:
- Non-Inverting
- Features:
- Auto Restart
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Over Voltage
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SO
VND920TR-E FAQ
1.How can I place an order for VND920TR-E through Aetrix?
Please submit a Request for Quotation (RFQ) for VND920TR-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 VND920TR-E reliable?
The price and inventory of VND920TR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND920TR-E is usually 5 days.
3.What payment methods are accepted for VND920TR-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND920TR-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VND920TR-E?
VND920TR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VND920TR-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 VND920TR-E?
For technical support, including VND920TR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND920TR-E requirements.
6.How does Aetrix verify that VND920TR-E is sourced from the original manufacturer or authorized distributors?
All VND920TR-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 VND920TR-E meets industry standards.
7.What is the process for return or replacement of VND920TR-E?
All VND920TR-E units undergo pre-shipment inspection (PSI). If there is an issue with VND920TR-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 VND920TR-E part is unused and in its original packaging.
Return procedure for VND920TR-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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