TPS92638QPWPRQ1 – Automotive 8-Channel Linear LED Driver – Texas Instruments

Optimize automotive lighting systems with the TPS92638QPWPRQ1 LED driver from Texas Instruments. This AEC-Q100 qualified IC features integrated switches and multi-mode dimming for reliable, space-efficient illumination control in demanding environments. Engineered for stability and precision, it simplifies design while meeting stringent automotive standards.

Key Features

• Automotive Grade: AEC-Q100 qualified for harsh environments
• Integrated Power Switches: 8 independent 70mA channels
• Wide Voltage Range: 5V to 40V input operation
• Flexible Dimming: Analog and PWM control support
• Extended Temperature Range: -40°C to +125°C (TA)
• Compact Design: 20-HTSSOP surface-mount package

Technical Specifications

• Type: Linear LED Driver with Internal Switches
• Output Current: 70mA per channel (8 channels total)
• Dimming Modes: Analog voltage & PWM input
• Package: 20-PowerTSSOP (4.40mm Width)
• Base Part: TPS92638 series
• Status: Active production

Typical Applications

• Automotive interior lighting (dome, footwell, dashboard)
• Exterior LED lighting systems (DRLs, turn signals)
• Backlighting for infotainment displays and clusters
• Commercial vehicle indicator lights
• Industrial indicator and control panel lighting

About Texas Instruments

Texas Instruments (TI) is a global semiconductor leader with over 90 years of innovation in analog and embedded processing technologies. Their automotive-grade components set industry benchmarks for reliability, with rigorous design validation and manufacturing processes that exceed AEC-Q100 standards.

TI’s power management portfolio delivers cutting-edge solutions for electrification and advanced driver systems. Their commitment to long-term product availability and comprehensive technical resources makes TI a trusted partner for automotive design engineers worldwide.

About LED Driver ICs

LED driver ICs regulate power to light-emitting diodes, ensuring consistent brightness and color accuracy regardless of input voltage fluctuations. They protect LEDs from overcurrent and thermal stress while enabling sophisticated control features like dimming and sequencing.

In automotive applications, specialized drivers like the TPS92638QPWPRQ1 withstand voltage transients and extreme temperatures while meeting EMI/EMC requirements. Their integration reduces component count versus discrete solutions, saving PCB space and improving system reliability in critical lighting functions.

Packaging Options

Available in industry-standard formats: Tape & Reel (TR) for automated assembly, Cut Tape (CT) for prototyping, and Digi-Reel® for flexible reel quantities.

Frequently Asked Questions

Q: Is this IC suitable for brake light applications?
A: Yes, its PWM dimming capability and 40V max input support automotive exterior lighting like brake lights.

Q: Does it require external current-limiting resistors?
A: No, the integrated switches and current regulation eliminate the need for external resistors per channel.

Q: What certification does the AEC-Q100 qualification provide?
A: This confirms compliance with automotive reliability standards, including extended temperature cycling and stress tests.

Q: Can I parallel channels for higher current?
A: Yes, multiple channels can be combined to drive higher-current LEDs while maintaining individual diagnostics.

Q: Is thermal shutdown protection included?
A: Yes, the IC features overtemperature protection to prevent damage during fault conditions.

Q: Where can I find design resources?
A: Access the full datasheet and application notes on PCXCo.com.

Product images are representational. Refer to datasheets for exact specifications.

Order from PCX Today!

As an authorized supplier, PCX guarantees authentic Texas Instruments components with same-day shipping. Our technical support team ensures seamless integration – contact us for design assistance. Secure your supply of TPS92638QPWPRQ1 LED drivers now for reliable automotive lighting solutions!