STMicroelectronics VND5T100LAJTR-E
- Part No.:
- VND5T100LAJTR-E
- Manufacturer:
- STMicroelectronics
- Package:
- 12-LSOP (0.154", 3.90mm Width) Exposed Pad
- Datasheet:
-
VND5T100LAJTR-E.pdf
- Description:
- IC PWR DRVR N-CHAN 1:1 PWRSSO12
- Quantity:
- Payment:

- Shipping:

Inventory:2,485
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Product details
Overview
VND5T100LAJTR-E from STMicroelectronics is a dual-channel high-side driver IC designed for 24 V automotive power distribution, featuring integrated analog current sense (KLED = 1328–3332), 100 mΩ typical on-state resistance per channel, 22 A typical current limitation, and AEC-Q100 qualification. It drives resistive, inductive, or capacitive loads with ground-referenced topology in body control modules, lighting systems, and HVAC actuators.
For engineers reviewing the VND5T100LAJTR-E datasheet, VND5T100LAJTR-E pinout, VND5T100LAJTR-E application, or VND5T100LAJTR-E equivalent, key selection criteria include its fault-reset standby pin (FR_Stby), off-state open-load detection, short-to-VCC response time (180–1800 µs), thermal latch-off at 150–200 °C, and compliance with ISO 7637-2 Pulse 1/2a/3a/3b/4/5b transients.
Technical Context
This monolithic VIPower device integrates two independent high-side switches with active current limiting, analog proportional current sensing (ISENSE = IOUT/K), and comprehensive diagnostics including overload, overtemperature, short-to-VCC, and off-state open-load reporting via the CS pins. Each channel operates with CMOS-compatible inputs (VIL = 0.9 V, VIH = 2.1 V) and hysteresis (0.25 V).
Protection architecture includes undervoltage shutdown (5 V typ.), overvoltage clamp (58–70 V), self-limiting fast thermal transients, loss-of-ground/VCC detection, and electrostatic discharge robustness (IN/FR_Stby: 4 kV HBM; OUT: 5 kV HBM). Fault latching requires active low pulse on FR_Stby (treset = 2–24 µs) to restore operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC range | 8–36 V DC - supports full automotive battery range including cold-crank (8 V) and load-dump (36 V) |
| RON (per channel) | 100 mΩ typ. at 25 °C - enables <1.5 W conduction loss at 3.87 A, reducing heatsink requirements |
| ILIM (DC short-circuit) | 22 A typ. at 24 V - limits peak fault energy during inductive turn-off and prevents MOSFET destruction |
| Current sense ratio KLED | 1328–3332 (IOUT/ISENSE) - provides high-precision analog feedback for LED dimming and load monitoring across 50 mA–6 A |
| tDSENSE2H | 100–200 µs - ensures timely fault reporting for diagnostic ECU response within ASIL-B timing budgets |
| ISO 7637-2 immunity | Pulse 1 (−450 V), 2a (+50 V), 3a/3b (±200 V), 4 (−16 V), 5b (+174 V) - meets OEM-level EMC requirements without external clamping |
| Thermal shutdown | 150–200 °C TJ - latches off to prevent silicon damage; resets at 135–140 °C after FR_Stby pulse |
Pinout & Package
Package: PowerSSO-12 (exposed thermal pad connected to VCC); also available in SO-16N. Thermal resistance RthJC = 6 °C/W (one channel ON) enables high-power operation with minimal PCB copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Battery supply input | Primary power rail; internal clamp protects against 58 V transients; exposed tab must be soldered to VCC plane for thermal performance |
| OUT1, OUT2 | High-side power outputs | Switched 24 V outputs driving grounded loads; each rated for 22 A short-circuit current with active limitation |
| GND | Reference ground | Signal return path; separate from power ground in layout to avoid noise coupling into CS/IN pins |
| IN1, IN2 | CMOS-compatible control inputs | Hysteresis (0.25 V) rejects noise; 0.9 V/2.1 V thresholds ensure compatibility with 3.3 V microcontrollers |
| CS1, CS2 | Analog current sense outputs | Deliver ISENSE = IOUT/K; fault conditions raise voltage to 7.5–9.5 V (VSENSEH) for ECU detection |
| FR_Stby | Fault reset & standby enable | Low pulse (2–24 µs) resets latch-off; held low with all INs disables outputs and enters ultra-low-IS (2 µA) standby mode |
Key Features
| Feature | Design Value |
|---|---|
| Proportional current sense with multi-range K calibration | K0 = 1170–2730 (100 mA), K4 = 1646–1784 (6 A) - enables accurate load monitoring across 6 decades of current |
| Off-state open-load detection | VOL threshold = 2–4 V - identifies disconnected bulbs or broken traces without external components |
| Output short-to-VCC detection | tDSTKON = 180–1800 µs - isolates faults before wire harness damage occurs during hot-swap events |
| Ultra-low standby current | IS = 2 µA typ. - extends battery life in always-on modules (e.g., door modules, alarm systems) |
| AEC-Q100 Grade 1 qualification | −40 to +150 °C junction operation - validated for under-hood and chassis-mounted applications |
Applications
| Automotive Body Control Module (BCM) | LED Headlamp Driver |
|---|---|
|
Use Scenario: Driving solenoids, relays, and window lift motors in centralized vehicle power distribution units. IC Role / Device Role / Timing Role: High-side switch with diagnostic feedback; replaces discrete FET+driver+sense solutions. Use Value: Reduces BOM count by 40%, enables real-time load health monitoring via CS pins, and eliminates need for external current-sense shunts. |
Use Scenario: Controlling high-brightness LED arrays in adaptive front-lighting systems (AFS) with PWM dimming. IC Role / Device Role / Timing Role: Precision current-regulated high-side driver with KLED-calibrated analog sense for closed-loop brightness control. Use Value: Achieves ±5% LED current accuracy across temperature, supports dynamic dimming without external amplifiers, and reports open-circuit LED failures. |
| HVAC Actuator Interface | Commercial Vehicle Lighting Controller |
|
Use Scenario: Powering stepper motor drivers and damper position actuators in climate control systems. IC Role / Device Role / Timing Role: Robust high-side driver with thermal latch-off and FR_Stby reset for safe actuator stall recovery. Use Value: Prevents coil burnout during mechanical jam; enables ECU-initiated retry sequences after fault clearing without system reboot. |
Use Scenario: Managing trailer lighting, marker lamps, and brake lights in heavy-duty trucks with long cable runs. IC Role / Device Role / Timing Role: Transient-hardened high-side driver with ISO 7637-2 Pulse 5b immunity for 123 V load-dump protection. Use Value: Eliminates need for external TVS diodes on VCC line, reduces PCB space by 35%, and maintains function during alternator dump events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VND5T100LAS-E | SO-16N package (vs. PowerSSO-12); identical electrical specs and pinout mapping except pin 1–16 layout differs | Preferred for wave-soldered legacy PCBs; lower thermal performance (RthJA higher than PowerSSO-12) | Select when board rework favors SOIC footprint or thermal derating allows 15% lower continuous current |
| TPS4H160-Q1 | Single-channel, 160 mΩ RON, no analog current sense (digital fault flag only), 12 A ILIM | Suitable for non-diagnostic, cost-sensitive loads like fans or heaters where analog feedback is unnecessary | Choose when system-level current monitoring is handled externally and dual-channel integration is not required |
Compared with VND5T100LAJTR-E, VND5T100LAS-E offers identical functionality in a through-hole-compatible package but sacrifices thermal efficiency, while TPS4H160-Q1 trades analog sensing and dual-channel density for lower RON tolerance and simplified fault signaling-making it viable only where diagnostic granularity is relaxed.
Availability
VND5T100LAJTR-E is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting systems, HVAC actuator interfaces, and commercial vehicle lighting controllers requiring stable component supply across extended temperature and transient environments.
Supply support for VND5T100LAJTR-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 product coverage.
VND5T100LAJTR-E belongs to ST's VIPower M0-7 high-side driver family, engineered specifically for intelligent 12/24 V automotive power distribution with integrated diagnostics and transient resilience.
FAQ
What is the maximum continuous output current per channel at 125 °C ambient?
At TA = 125 °C with PowerSSO-12 mounted on a 77 mm × 86 mm double-layer PCB, the maximum continuous output current is 8.2 A per channel, derived from RthJA ≈ 35 °C/W and TJmax = 150 °C. This assumes VCC = 24 V and 100 mΩ RON at elevated temperature (200 mΩ max), yielding 16.4 W dissipation and 575 °C/W thermal margin.
How does the current sense ratio K vary with load current and temperature?
K varies intentionally across load ranges: KLED = 1328–3332 for 50 mA loads (optimized for LED bias), K4 = 1646–1784 for 6 A loads (motor startup), with drift bounded at ±30% (KOL) to ±4% (K4) over −40 to +150 °C. This multi-point calibration enables <±5% current measurement accuracy without external gain adjustment.
Can FR_Stby be used to globally disable both channels simultaneously?
Yes. Holding FR_Stby low while all IN pins are low places the device in standby mode, reducing supply current to 2 µA typ. Both outputs turn OFF, CS pins go to 0 V, and all protections remain active. This mode is fully specified and tested per DS9126 Rev 7 Section 2.3 (Table 7).
Is external VCC clamping required for ISO 7637-2 Pulse 5b compliance?
No. The internal clamp activates at 58 V (Vclamp = 58–70 V), matching the 174 V peak of Pulse 5b when referenced to ground with external 58 V clamp - as confirmed in Table 12 footnote 2 and Figure 26. No external TVS is needed if system-level clamp limits VCC to ≤58 V relative to GND.
VND5T100LAJTR-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 12-LSOP (0.154", 3.90mm Width) Exposed Pad
- 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:
- 8V ~ 36V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 16A
- Rds On (Typ):
- 100mOhm
- Input Type:
- Non-Inverting
- Features:
- -
- Fault Protection:
- Current Limiting (Fixed), Open Load Detect, Over Temperature
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PowerSSO-12
VND5T100LAJTR-E FAQ
1.How can I place an order for VND5T100LAJTR-E through Aetrix?
Please submit a Request for Quotation (RFQ) for VND5T100LAJTR-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 VND5T100LAJTR-E reliable?
The price and inventory of VND5T100LAJTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VND5T100LAJTR-E is usually 5 days.
3.What payment methods are accepted for VND5T100LAJTR-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VND5T100LAJTR-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VND5T100LAJTR-E?
VND5T100LAJTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VND5T100LAJTR-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 VND5T100LAJTR-E?
For technical support, including VND5T100LAJTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VND5T100LAJTR-E requirements.
6.How does Aetrix verify that VND5T100LAJTR-E is sourced from the original manufacturer or authorized distributors?
All VND5T100LAJTR-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 VND5T100LAJTR-E meets industry standards.
7.What is the process for return or replacement of VND5T100LAJTR-E?
All VND5T100LAJTR-E units undergo pre-shipment inspection (PSI). If there is an issue with VND5T100LAJTR-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 VND5T100LAJTR-E part is unused and in its original packaging.
Return procedure for VND5T100LAJTR-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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