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STMicroelectronics VND7050AJ12TR
- Part No.:
- VND7050AJ12TR
- Manufacturer:
- STMicroelectronics
- Package:
- 12-PowerLSOP (0.154", 3.90mm Width)
- Datasheet:
-
VND7050AJ12TR.pdf
- Description:
- IC PWR DRVR N-CHAN 1:1 PWRSSO12
- Quantity:
- Payment:
- Shipping:
Inventory:6,999
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Product details
Overview
VND7050AJ12 from STMicroelectronics is a double-channel automotive high-side driver with integrated analog CurrentSense feedback, VIPower® technology, 50 mΩ typical on-resistance per channel, 30 A current limitation, and PowerSSO-12 package. It drives 12 V grounded resistive/inductive/capacitive loads (e.g., P27W signal lamps) via 3 V/5 V CMOS-compatible inputs while delivering real-time load current sensing and comprehensive diagnostics.
For engineers reviewing the VND7050AJ12 datasheet, VND7050AJ12 pinout, VND7050AJ12 application, or VND7050AJ12 equivalent, this page delivers verified electrical specs, cranking-mode operation down to 2.85 V, multiplexed analog sense behavior, thermal shutdown thresholds, and protection coverage for reverse battery, overvoltage, short-to-VCC, and off-state open-load detection.
Technical Context
The device implements two independent high-side power switches using ST's VIPower® M0-7 process, each with embedded current mirroring for proportional analog ISENSE output. Its logic interface supports 3 V/5 V CMOS levels with hysteresis, and the SEn/SEL pins enable time-multiplexed diagnostic reporting across both channels.
Protections include active power limitation during overload, thermal shutdown at 140 °C (cranking mode), undervoltage lockout (2.85 V trip, 5 V reset), clamp-limited overvoltage (41 V typ), and loss-of-ground/VCC detection. All protections operate without external components except reverse-battery protection requiring an external Schottky diode or MOSFET network on GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4 V to 28 V operating; supports engine cranking down to 2.85 V - enables reliable cold-start operation per LV124 Rev 2013. |
| RON (per channel) | 50 mΩ typ @ 2 A, 25 °C - ensures low conduction loss and minimal self-heating under nominal load. |
| ILIMH | 30 A typ current limit - provides robust short-circuit protection without external fusing. |
| ISTBY | 0.5 µA max @ 13 V, 25 °C - enables ultra-low-power module sleep states in body control units. |
| CurrentSense Accuracy | ±5% full-scale error over 0–30 A - enables precise closed-loop load monitoring and predictive fault detection. |
| Thermal Shutdown | 140 °C trigger during cranking (VCC = 2.85 V) - prevents thermal runaway under sustained overload at low supply. |
| ESD Rating | 4 kV HBM on INPUT/CurrentSense/SEn/SEL/OUTPUT - meets automotive system-level ESD immunity requirements. |
Pinout & Package
Supplied in PowerSSO-12 package: thermally enhanced exposed pad, surface-mount, 12-pin, RoHS-compliant, footprint optimized for automotive PCB thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Battery supply input | Primary 12 V rail connection; clamped to 41 V max; supports transient up to 40 V (ISO 16750-2). |
| GND | Ground reference | Must be externally protected against reverse battery; internal circuitry references this node for all diagnostics. |
| OUTPUT0 / OUTPUT1 | High-side switched outputs | Drive grounded loads; each integrates reverse-diode (VF = 0.7 V @ –2 A) and current-sense mirror. |
| INPUT0 / INPUT1 | CMOS-compatible control inputs | Hysteresis-enabled; compatible with 3 V/5 V MCU I/Os; direct logic-level control of channel ON/OFF state. |
| CurrentSense | Multiplexed analog diagnostic output | Delivers 1 mA/A proportional current; reports load current, short-to-GND, short-to-VCC, and open-load status. |
| SEn | Sense enable control | Active-high; disables CurrentSense output during standby to reduce system leakage and enable shared sense resistor networks. |
| SEL | Multiplexer address select | Active-high; selects which channel's diagnostic data appears on CurrentSense pin (0 = CH0, 1 = CH1). |
Key Features
| Feature | Design Value |
|---|---|
| Double-channel VIPower® high-side switching | Two fully independent 12 V high-side drivers in one PowerSSO-12 package - reduces board space vs dual discrete solutions. |
| Multiplexed analog CurrentSense | Single pin delivers channel-selectable, high-precision (±5%) load current + fault flags - eliminates need for external ADC or comparator circuits. |
| Deep-cranking operation | Functional down to VCC = 2.85 V with full protection and diagnostics - satisfies LV124 Rev 2013 cold-cranking compliance. |
| Integrated protection suite | Undervoltage lockout, overvoltage clamp, thermal shutdown, current limiting, reverse-battery readiness, and ESD hardening - reduces external protection component count by ≥40%. |
| Ultra-low standby current | 0.5 µA max at 13 V, 25 °C - extends battery life in always-on automotive modules such as lighting control ECUs. |
Applications
| Automotive Signal Lamps | Body Control Modules (BCM) |
|---|---|
|
Use Scenario: Driving P27W filament bulbs or LED rear combinations (SAE1156) in tail/brake/turn lamp assemblies. IC Role / Device Role / Timing Role: Dual high-side switch providing independent PWM-controlled power delivery and real-time current monitoring per lamp function. Use Value: Enables open-load detection before bulb failure, short-to-VCC identification during harness damage, and thermal derating during prolonged brake light activation. |
Use Scenario: Managing interior lighting, door locks, window lifts, and HVAC actuators in centralized vehicle body controllers. IC Role / Device Role / Timing Role: High-side driver with diagnostic feedback for load verification and fault logging in ISO 26262 ASIL-B supporting subsystems. Use Value: Reduces need for external current sensors and discrete protection ICs, lowering BOM cost and improving diagnostic coverage for functional safety compliance. |
| Engine Start/Stop Systems | Commercial Vehicle Lighting Control |
|
Use Scenario: Controlling auxiliary loads (e.g., cabin fans, infotainment backlighting) during engine cranking transients. IC Role / Device Role / Timing Role: Maintains regulated output despite battery voltage sag to 2.85 V, with automatic thermal foldback to prevent latch-up. Use Value: Ensures uninterrupted operation of critical comfort systems during start events - validated per ISO 16750-2 Pulse 4B and LV124 cranking profiles. |
Use Scenario: Powering heavy-duty trailer lamps, marker lights, and turn signals in trucks and buses with extended wiring harnesses. IC Role / Device Role / Timing Role: High-current (30 A peak) high-side driver with short-to-VCC detection to identify harness chafing or connector faults. Use Value: Eliminates false open-load alarms caused by long-line capacitance; distinguishes true open-circuit from capacitive coupling via off-state voltage threshold analysis. |
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 RON, no analog CurrentSense - uses digital SPI diagnostics only. | Lacks multiplexed analog feedback; requires external ADC for current measurement; lower current capability (10 A). | Preferred when SPI-based diagnostics and lower channel count suffice; not suitable for legacy analog-sense architectures. |
| VND7E025AJTR | Single-channel, 25 mΩ RON, identical CurrentSense architecture and cranking support (2.85 V). | Requires two devices for dual-channel use; increases PCB area and thermal coupling risk vs integrated dual-channel design. | Select when higher current density per channel (45 A) is required and board layout allows separate placement. |
Compared with TPS4H160-Q1 and VND7E025AJTR, the VND7050AJ12 uniquely delivers dual-channel integration, 50 mΩ conduction resistance, and analog multiplexed CurrentSense in a single PowerSSO-12 package - optimizing space, thermal performance, and diagnostic fidelity for automotive lighting and BCM applications.
Availability
VND7050AJ12 is available at Aetrix Electronics and suitable for automotive signal lamps, body control modules, engine start/stop auxiliary loads, and commercial vehicle lighting control requiring stable component supply across production lifecycles.
Supply support for VND7050AJ12 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, analog, and microcontroller solutions with AEC-Q100 qualification across product families.
The VND7050AJ12 belongs to ST's VIPower® high-side driver product line, engineered specifically for intelligent 12 V load control in automotive body electronics - emphasizing cranking resilience, diagnostic richness, and system-level protection integration.
FAQ
What is the minimum supply voltage at which VND7050AJ12 remains fully functional during engine cranking?
The VND7050AJ12 operates down to 2.85 V during decreasing VCC conditions (VUSD_Cranking), maintaining full protection, diagnostics, and switching functionality - compliant with LV124 Rev 2013 deep-cranking requirements. Below this threshold, undervoltage shutdown activates to prevent erratic behavior.
How does the CurrentSense pin distinguish between short-to-VCC and off-state open-load conditions?
The CurrentSense pin outputs distinct voltage levels: ~0.2 V indicates short-to-VCC (output pulled to VCC), while >1.5 V indicates off-state open-load (high-impedance floating condition). These thresholds are internally generated and validated across temperature (-40 °C to 150 °C) per Table 16 in the datasheet.
Is external reverse-battery protection mandatory, and what topology is recommended?
Yes - external reverse-battery protection on the GND line is mandatory. ST recommends either a Schottky diode (DGND) or an N-channel MOSFET with gate driven by VCC, as shown in Figures 31–32. Without it, reverse VCC applied to GND can damage internal structures despite the device's 0.3 V reverse rating on GND.
Can SEn and SEL pins be left unconnected, and what are the default behaviors?
No - SEn and SEL must not be left floating. Per Table 2, SEn should be tied to ground via a 15 kΩ resistor if unused; SEL must be pulled to ground (for CH0 default) or VCC (for CH1 default) via 15 kΩ. Floating these pins risks undefined CurrentSense output and potential diagnostic misreporting.
VND7050AJ12TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 12-PowerLSOP (0.154", 3.90mm 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 ~ 28V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 21A
- Rds On (Typ):
- 50mOhm
- Input Type:
- Non-Inverting
- Features:
- Auto Restart
- 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-12
VND7050AJ12TR FAQ
1.How can I place an order for VND7050AJ12TR through Aetrix?
Please submit a Request for Quotation (RFQ) for VND7050AJ12TR 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 VND7050AJ12TR reliable?
The price and inventory of VND7050AJ12TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND7050AJ12TR is usually 5 days.
3.What payment methods are accepted for VND7050AJ12TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND7050AJ12TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VND7050AJ12TR?
VND7050AJ12TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VND7050AJ12TR 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 VND7050AJ12TR?
For technical support, including VND7050AJ12TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND7050AJ12TR requirements.
6.How does Aetrix verify that VND7050AJ12TR is sourced from the original manufacturer or authorized distributors?
All VND7050AJ12TR 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 VND7050AJ12TR meets industry standards.
7.What is the process for return or replacement of VND7050AJ12TR?
All VND7050AJ12TR units undergo pre-shipment inspection (PSI). If there is an issue with VND7050AJ12TR, 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 VND7050AJ12TR part is unused and in its original packaging.
Return procedure for VND7050AJ12TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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