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STMicroelectronics VND7020AJ-E
- Part No.:
- VND7020AJ-E
- Manufacturer:
- STMicroelectronics
- Package:
- 16-PowerLFSOP (0.154", 3.90mm Width)
- Datasheet:
-
VND7020AJ-E.pdf
- Description:
- IC PWR DRVR N-CHAN 1:1 PWRSSO16
- Quantity:
- Payment:
- Shipping:
Inventory:1,066
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Product details
Overview
VND7020AJ-E from STMicroelectronics is a double-channel automotive smart high-side driver in PowerSSO-16 package, integrating MultiSense analog feedback for load current (±5% accuracy), VCC supply voltage, and chip temperature sensing. It delivers 22 mΩ on-resistance per channel, 63 A current limitation, and supports 4–28 V operation with <0.5 µA standby current. Designed for turn indicators driving up to 2×P27W bulbs or LED rear combinations.
For engineers reviewing the VND7020AJ-E datasheet, VND7020AJ-E pinout, VND7020AJ-E application, or VND7020AJ-E equivalent, this page provides verified technical context, diagnostic signal timing, latch-off configuration via FaultRST, and real-world automotive load interface requirements including reverse-battery protection and ISO 7637-2 transient immunity.
Technical Context
The device implements dual independent high-side power switches using ST's VIPower® M0-7 technology, each with integrated current-limiting, thermal shutdown, and configurable latch-off behavior triggered by overtemperature or power limitation events. The FaultRST pin enables either manual unlatching or auto-restart mode depending on logic level.
MultiSense functionality multiplexes three diagnostics-load current (via precision proportional current mirror), VCC supply voltage, and TCHIP temperature-onto a single analog output pin using SEL0/SEL1 address control. SEn enables OFF-state open-load detection and allows external sense resistor sharing across multiple devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage Range | 4 V to 28 V - supports full automotive battery range including cold-crank (4 V) and load-dump (28 V) conditions. |
| On-State Resistance (per channel) | 22 mΩ typ. at 25°C - enables low conduction loss for high-current loads like P27W lamps (≈5.5 A). |
| Current Limitation | 63 A typ. - self-limiting during short-circuit events without external components. |
| Standby Current | 0.5 µA max. - ensures negligible battery drain during vehicle sleep mode. |
| MultiSense Accuracy | ±5% load current sensing - enables precise closed-loop diagnostics for ECU validation of lamp status and filament integrity. |
| Thermal Shutdown Threshold | 150°C junction - protects against sustained overload or poor PCB heatsinking. |
| Max Transient Supply Voltage | 40 V (ISO 16750-2 Test B clamped) - withstands load-dump transients without damage. |
Pinout & Package
Housed in PowerSSO-16 package (16-pin exposed-pad surface-mount), featuring integrated thermal pad for enhanced power dissipation in automotive under-hood environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Battery supply input | Accepts 4–28 V DC; clamped to 46 V during transients; powers internal logic and gate drivers. |
| GND | Ground reference | Must be protected externally against reverse battery via diode/resistor network per datasheet Figure 30. |
| OUTPUT0, OUTPUT1 | High-side power outputs | Drive grounded resistive/inductive loads (e.g., turn lamps); each rated for 63 A peak current limit. |
| INPUT0, INPUT1 | CMOS-compatible control inputs | 3 V/5 V logic compatible with hysteresis; control respective channel ON/OFF state. |
| MultiSense | Multiplexed analog diagnostic output | Delivers proportional current for load current, VCC, or TCHIP based on SEL0/SEL1 addressing; requires external ADC. |
| SEn | Sense enable input | Active-high; enables MultiSense function and OFF-state open-load detection; supports shared sense resistor topology. |
| SEL0, SEL1 | Multiplexer address inputs | Select diagnostic source: 00 = load current, 01 = VCC, 10 = TCHIP, 11 = reserved. |
| FaultRST | Fault reset/latch control | Active-low; unlatches fault condition when pulsed high; held low for auto-restart behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel high-side switching | Independent control of two automotive loads with integrated current limiting and thermal protection. |
| MultiSense analog feedback | Single-pin multiplexed sensing of load current (±5%), supply voltage, and die temperature - reduces ECU ADC channel count. |
| Configurable fault latch-off | FaultRST pin allows system-level choice between manual reset or auto-restart after overtemperature/power-limit events. |
| Reverse battery protection support | Compatible with external GND-line diode/resistor network (Figure 30) to survive -14 V reverse connection. |
| Low standby current | 0.5 µA max. at 13 V - meets automotive OEM requirements for module sleep-mode current budgets. |
Applications
| Front Turn Indicator Control | Rear Combination Lamp Driver |
|---|---|
|
Use Scenario: Driving dual P27W incandescent bulbs (≈5.5 A each) in front turn signal circuits with PWM dimming and open-filament detection. IC Role / Device Role / Timing Role: High-side switch providing load isolation, current limiting during bulb hot-swap, and real-time current feedback for ECU validation. Use Value: Eliminates need for discrete current-sense shunts and separate thermal protection ICs while enabling diagnostics compliant with UNECE R6 or FMVSS 108. |
Use Scenario: Controlling LED-based rear combination lamps (brake + turn + tail) where one channel drives brake LEDs and the other handles turn signals. IC Role / Device Role / Timing Role: Dual-channel driver delivering fast turn-on (<60 µs) and controlled slew rate (0.36 V/µs) to minimize EMI during LED switching. Use Value: Enables single-package solution for multi-function rear lighting with integrated open-load detection during OFF state to confirm LED string integrity. |
| Body Control Module (BCM) Load Interface | Automotive Seat Heater Control |
|
Use Scenario: Managing auxiliary resistive loads such as door lock actuators, mirror heaters, or interior lighting in centralized BCM designs. IC Role / Device Role / Timing Role: Smart high-side driver providing load enable/disable, short-to-ground detection, and supply monitoring for system-level health reporting. Use Value: Reduces BOM count by consolidating protection, diagnostics, and drive functions previously requiring discrete MOSFETs, fuses, and sense resistors. |
Use Scenario: Controlling 12 V seat heater elements (typically 3–5 A) with thermal derating and fault logging capabilities. IC Role / Device Role / Timing Role: High-side switch with TCHIP temperature sensing and configurable latch-off to prevent overheating during prolonged use. Use Value: Enables closed-loop thermal management using on-die temperature feedback instead of external NTC sensors, improving response time and accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel high-side driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS4H160-Q1 | Single-channel, higher RON (80 mΩ), no analog current sense - uses digital SPI diagnostics only. | Lacks multiplexed analog feedback; requires additional ADC channels for current/VCC/temperature monitoring. | Preferred when SPI-based diagnostics and functional safety (ASIL-B) are required over analog simplicity. |
| VND7E025AJTR-E | Same PowerSSO-16 package, lower current limit (25 A), identical MultiSense architecture and pinout. | Targeted at lower-power loads (e.g., small solenoids or indicator LEDs); not suitable for P27W lamp driving. | Select when load current stays below 20 A and thermal budget is tighter due to smaller die size. |
Compared with TPS4H160-Q1, VND7020AJ-E offers superior analog diagnostic integration and lower conduction loss but lacks ASIL-B certification; versus VND7E025AJTR-E, it delivers 2.5× higher current capability at identical footprint and diagnostic feature set.
Availability
VND7020AJ-E is available at Aetrix Electronics and suitable for automotive body control modules, lighting control units, and seat heater systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for VND7020AJ-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-grade power ICs, microcontrollers, and sensors with broad AEC-Q100 qualification coverage.
The VND7020AJ-E belongs to ST's VIPower® high-side driver family, engineered specifically for intelligent load control in 12 V automotive electrical architectures with emphasis on diagnostic richness and robustness against harsh electrical environments.
FAQ
What is the purpose of the FaultRST pin?
The FaultRST pin is an active-low input that controls fault recovery behavior. When pulsed high, it unlatches outputs after thermal shutdown or power limitation events. If held low continuously, the device enters auto-restart mode - cycling ON/OFF until fault condition clears. This enables flexible system-level fault handling without requiring MCU intervention for every event.
How does MultiSense enable OFF-state open-load detection?
With SEn high and SEL0/SEL1 set to '00', MultiSense outputs a current proportional to load current. In OFF state (INPUTx = low), any measurable current indicates leakage or short-to-VCC; zero current confirms open-load condition. Datasheet Table 13 specifies off-state MultiSense levels - typically <1 µA for confirmed open circuit - allowing ECU to distinguish between failed-open and failed-short states.
Can VND7020AJ-E drive inductive loads like fuel injectors?
Yes - the device supports inductive demagnetization energy up to 64 mJ at VCC = 16 V (datasheet Section 4.5). Its integrated clamp diode and controlled turn-off slew rate (0.36 V/µs typ.) suppress voltage spikes during coil de-energization. However, external flyback diodes are recommended for high-energy injectors exceeding this rating or operating outside specified pulse-width limits.
What PCB layout considerations apply to PowerSSO-16 thermal performance?
Optimal thermal performance requires soldering the exposed thermal pad to ≥2 cm² copper area on a two-layer board (Rthj-amb = 55.5 °C/W) or using a four-layer board with internal ground/power planes (Rthj-amb = 21.5 °C/W). Datasheet Figures 43–44 specify minimum copper thickness (≥35 µm) and thermal via placement (≥9 vias, 0.3 mm diameter) beneath the pad to achieve rated junction-to-ambient resistance.
VND7020AJ-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 16-PowerLFSOP (0.154", 3.90mm Width)
- Series:
- VIPower™
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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):
- 45A
- Rds On (Typ):
- 22mOhm
- Input Type:
- Non-Inverting
- Features:
- Auto Restart, Status Flag
- 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-16
VND7020AJ-E FAQ
1.How can I place an order for VND7020AJ-E through Aetrix?
Please submit a Request for Quotation (RFQ) for VND7020AJ-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 VND7020AJ-E reliable?
The price and inventory of VND7020AJ-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND7020AJ-E is usually 5 days.
3.What payment methods are accepted for VND7020AJ-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND7020AJ-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VND7020AJ-E?
VND7020AJ-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VND7020AJ-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 VND7020AJ-E?
For technical support, including VND7020AJ-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND7020AJ-E requirements.
6.How does Aetrix verify that VND7020AJ-E is sourced from the original manufacturer or authorized distributors?
All VND7020AJ-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 VND7020AJ-E meets industry standards.
7.What is the process for return or replacement of VND7020AJ-E?
All VND7020AJ-E units undergo pre-shipment inspection (PSI). If there is an issue with VND7020AJ-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 VND7020AJ-E part is unused and in its original packaging.
Return procedure for VND7020AJ-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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