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STMicroelectronics VN7003AHTR
- Part No.:
- VN7003AHTR
- Manufacturer:
- STMicroelectronics
- Package:
- OctaPAK (7 leads + Tab)
- Datasheet:
-
VN7003AHTR.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 OCTAPAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,729
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Product details
Overview
VN7003AHTR from STMicroelectronics is a single-channel automotive-grade smart high-side driver with analog current-sense feedback, designed for 12 V grounded loads. It features 3.5 mΩ typical on-state resistance, 135 A current limitation, 4–28 V operating supply range, and AEC-Q100 qualification-enabling reliable control of glow plugs, heating systems, and DC motors in deep-cold cranking environments.
For engineers reviewing the VN7003AHTR datasheet, VN7003AHTR pinout, VN7003AHTR application, or VN7003AHTR equivalent, key selection criteria include its 3 V/5 V CMOS-compatible INPUT and SEn logic interface, OFF-state open-load detection capability, thermal shutdown behavior at 150 °C, and integrated reverse-battery protection up to −16 V.
Technical Context
The VN7003AHTR implements VIPower® M0-7 technology to integrate power MOSFET, protection circuitry, and diagnostic functions in one die. Its active power limitation responds to overload by dynamically reducing output voltage while maintaining current at ~135 A, avoiding destructive thermal runaway.
CurrentSense (CS) provides a proportional analog current output (1:2000 ratio) referenced to GND, enabling real-time load monitoring and fault discrimination-including short-to-VCC and OFF-state open-load detection via sense-enable (SEn) control and voltage threshold analysis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON (typ) | 3.5 mΩ at 15 A, 25 °C - enables <100 mW conduction loss at 10 A, critical for thermally constrained automotive modules |
| ILIMH (typ) | 135 A - sets hard current limit during short-circuit, preventing fuse blowout and enabling controlled power limitation |
| VCC Operating Range | 4–28 V - supports full automotive battery range including cold-crank down to 3 V (VUSD_Cranking = 3 V) |
| ISTBY (max) | 0.5 µA at 13 V, 25 °C - ensures negligible standby drain in always-on vehicle subsystems |
| CS Sensing Ratio | 1:2000 - delivers 500 µA per 1 A load current, compatible with standard ADC inputs without external amplification |
| TTSD (typ) | 150 °C - junction thermal shutdown threshold with 7 K hysteresis, allowing safe recovery after transient overloads |
| Vclamp (min) | 38 V at −40 °C - clamps transients per ISO 7637-2 Pulse 5b, protecting downstream electronics |
Pinout & Package
The VN7003AHTR is housed in the Octapak package-a thermally enhanced, surface-mount power package with exposed source pad for PCB heatsinking and optimized for high-current automotive applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Battery supply input | Primary power rail connection; accepts 4–28 V with undervoltage lockout at 3 V and overvoltage clamp at ≥38 V |
| OUTPUT | High-side power output | Switched 12 V load terminal; all internal power pins internally bonded and must be externally connected together |
| GND | Power ground reference | Return path for load current and internal logic; requires low-inductance PCB layout to support fast switching |
| INPUT | CMOS-compatible enable input | 3 V/5 V logic-controlled gate driver; includes 0.2 V hysteresis to reject noise in harsh automotive environments |
| CS | Analog current sense output | Current-source output (1:2000 ratio); active only when SEn = HIGH; used for real-time load monitoring and diagnostics |
| SEn | Sense enable control | Active-HIGH digital input; disables CS output and OFF-state diagnostics during module sleep mode to reduce system leakage |
Key Features
| Feature | Design Value |
|---|---|
| Deep cold-crank operation | Functional down to VCC = 3 V with guaranteed startup and protection activation, compliant with LV124 Rev 2013 |
| Integrated reverse-battery protection | Withstands −16 V applied to VCC without damage or latch-up, eliminating need for external series diode |
| OFF-state open-load detection | Discriminates open-circuit vs. short-to-VCC faults using CS pin voltage thresholds during powered-off condition |
| Loss-of-ground and loss-of-VCC detection | Monitors supply integrity independently; triggers diagnostic flag if either rail drops below functional threshold |
| Self-limiting thermal transients | Dynamic power limitation reduces output voltage under fast thermal rise, preventing destructive SOA violation during inductive turn-off |
Applications
| Glow Plug Control | Heating System Actuation |
|---|---|
Use Scenario: Precise timing and current ramp control of diesel engine glow plugs during cold-start sequences. IC Role / Device Role / Timing Role: High-side switch with analog current feedback for closed-loop preheat duration and fault detection. Use Value: Enables compliance with Euro 6 emission standards by ensuring consistent plug temperature across ambient conditions from −40 °C to +85 °C. | Use Scenario: Driving PTC heaters in HVAC and seat warming systems with real-time thermal derating. IC Role / Device Role / Timing Role: Smart power switch with integrated current sensing and thermal shutdown for adaptive power delivery. Use Value: Eliminates need for discrete current shunt and comparator, reducing BOM count while supporting ASIL-B diagnostic coverage. |
| DC Motor Load Switching | Relay Replacement in Body Control Modules |
Use Scenario: Controlling radiator cooling fans and windshield washer pumps in modern BCM architectures. IC Role / Device Role / Timing Role: High-current, low-RON switch with demagnetization energy management during motor turn-off. Use Value: Supports 6 mH inductive loads with controlled VOUT clamp (VCC − 38 V), suppressing voltage spikes that cause EMI or MCU reset. | Use Scenario: Replacing electromechanical relays in door lock actuators, trunk release, and lighting control. IC Role / Device Role / Timing Role: Solid-state high-side driver with built-in diagnostics for predictive maintenance and fault logging. Use Value: Reduces system-level failure rate by >90% versus relays and enables end-of-line functional test via CS feedback during production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2HB50-Q1 | Higher RON (5.5 mΩ typ), no analog CS output - uses digital fault reporting only | Lacks continuous current monitoring; suitable for on/off-only loads without closed-loop control | Select when diagnostic depth is secondary to cost and footprint reduction |
| IPS1025H | Lower ILIMH (100 A typ), same Octapak package, includes SPI interface for configuration and telemetry | Requires microcontroller integration for full feature access; adds design complexity but improves configurability | Select when programmable protection thresholds and multi-device synchronization are required |
Compared with TPS2HB50-Q1 and IPS1025H, the VN7003AHTR uniquely combines analog current sense, ultra-low standby current (<0.5 µA), and deep cold-crank operation (3 V), making it optimal for safety-critical, always-on automotive subsystems where passive diagnostics and minimal quiescent drain are mandatory.
Availability
VN7003AHTR is available at Aetrix Electronics and suitable for automotive smart power distribution, glow plug control, heating system actuation, and DC motor switching requiring stable component supply across extended temperature and voltage ranges.
Supply support for VN7003AHTR 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 strong vertical integration and AEC-Q100 validation infrastructure.
The VN7003AHTR belongs to ST's VIPower® high-side driver product line, engineered specifically for robust 12 V automotive power distribution with integrated diagnostics, protection, and low-voltage operability in extreme environmental conditions.
FAQ
What is the purpose of the SEn pin?
The SEn (Sense Enable) pin is an active-high digital input that controls whether the CurrentSense (CS) output is active. When SEn = LOW, CS is disabled and OFF-state diagnostics (e.g., open-load detection) are suppressed-reducing system leakage during low-power modes. When SEn = HIGH, CS delivers a 1:2000 proportional current for real-time load monitoring and fault classification.
How does the VN7003AHTR handle reverse battery conditions?
The VN7003AHTR withstands −16 V applied to the VCC pin without damage or functional disruption, thanks to integrated reverse-battery protection circuitry. This eliminates the need for an external series diode in the battery feed, reducing power loss and board space. The device remains latched off during reverse polarity and resumes normal operation immediately upon correct polarity restoration.
Can the VN7003AHTR drive inductive loads like solenoids or motors?
Yes-the VN7003AHTR is qualified for inductive loads up to 6 mH, with built-in demagnetization energy management. During turn-off, its output voltage is clamped to VCC − 38 V (at −40 °C), limiting flyback spikes. Combined with self-limiting thermal transients and active power limitation, it safely handles relay coils, fuel injectors, radiator fans, and other automotive inductors without external snubbers.
What diagnostic functions are supported in OFF-state?
In OFF-state (INPUT = LOW), the VN7003AHTR supports open-load detection and short-to-VCC detection via the CS pin-provided SEn = HIGH. Open-load is identified by CS voltage > 2.5 V; short-to-VCC yields CS voltage < 0.5 V. These thresholds are stable across temperature and supply voltage, enabling reliable fault classification without additional external components.
VN7003AHTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- OctaPAK (7 leads + Tab)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 4.5V ~ 28V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 80A
- Rds On (Typ):
- 3.5mOhm
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- OctaPAK 7+1
VN7003AHTR FAQ
1.How can I place an order for VN7003AHTR through Aetrix?
Please submit a Request for Quotation (RFQ) for VN7003AHTR 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 VN7003AHTR reliable?
The price and inventory of VN7003AHTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VN7003AHTR is usually 5 days.
3.What payment methods are accepted for VN7003AHTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VN7003AHTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VN7003AHTR?
VN7003AHTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VN7003AHTR 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 VN7003AHTR?
For technical support, including VN7003AHTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VN7003AHTR requirements.
6.How does Aetrix verify that VN7003AHTR is sourced from the original manufacturer or authorized distributors?
All VN7003AHTR 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 VN7003AHTR meets industry standards.
7.What is the process for return or replacement of VN7003AHTR?
All VN7003AHTR units undergo pre-shipment inspection (PSI). If there is an issue with VN7003AHTR, 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 VN7003AHTR part is unused and in its original packaging.
Return procedure for VN7003AHTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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