TPS92515HVDGQ Texas Instruments In Stock
TPS92515HVDGQ is a high-voltage LED driver controller by Texas Instruments designed for automotive and high-brightness lighting. Key specs: 4.5 V to 75 V input range, programmable LED current up to 3 A, AEC-Q100 qualified for automotive Grade 1. From $2.50, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4.5 V to 75 V wide input voltage range supporting automotive 12 V, 24 V, and 48 V battery systems directly
- Programmable output LED current up to 3 A with analog and PWM dimming for precise luminance control
- AEC-Q100 Grade 1 automotive qualification covering -40°C to +125°C operation for headlight and daytime running lamp applications
Applications
The TPS92515HVDGQ is designed for automotive exterior lighting applications including LED headlights, daytime running lamps, and fog lights where a 12 V to 48 V vehicle battery must drive high-current LED strings with precise dimming control. Its 75 V input capability handles automotive load dump transients, and the AEC-Q100 Grade 1 qualification ensures reliable operation across the -40°C to +125°C underhood temperature range. The device is also suitable for industrial high-bay LED luminaires and architectural lighting where wide input range and programmable current are required.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does TPS92515HVDGQ support and which automotive battery systems is it compatible with?
The TPS92515HVDGQ operates from 4.5 V to 75 V, covering 12 V, 24 V, and 48 V automotive battery systems including 48 V mild-hybrid architectures without a step-down pre-regulator. The 75 V maximum input also provides margin for load dump transients on 12 V and 24 V vehicle buses, which can reach 60 V to 70 V in unprotected harness segments per ISO 7637 Class C, enabling robust LED driver designs without external TVS protection in many cases.
How does TPS92515HVDGQ's PWM dimming capability support adaptive headlight designs in automotive applications?
The TPS92515HVDGQ supports PWM dimming at frequencies up to several kHz by modulating LED current on and off at a defined duty cycle, allowing automotive headlight systems to adjust beam intensity from near 0% to 100% brightness in response to ambient light sensors or driver assist systems. At a 1 kHz PWM frequency, dimming duty cycle steps as fine as 0.1% allow over 1,000 discrete brightness levels, meeting the resolution requirements of adaptive forward lighting systems (AFS) and matrix LED headlamp designs specified under ECE Regulation 123.
For an automotive tail lamp upgrade from halogen to LED, what advantages does TPS92515HVDGQ offer over a discrete resistor-limited LED drive circuit?
A discrete resistor-limited LED circuit dissipates excess power as heat (for example, dropping 9 V across a resistor at 500 mA wastes 4.5 W), whereas TPS92515HVDGQ regulates LED current with a switching topology achieving efficiency above 85% to 90%, reducing heat generation by 70% or more. Additionally, the IC maintains constant LED current as battery voltage varies from 9 V to 16 V during engine cranking and charging, preventing brightness fluctuations that are visible in halogen-to-LED replacement tail lamp designs using simple resistor drive.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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