Product details


Topology Current Source Channels (#) 3 Vin (Min) (V) 5 Vin (Max) (V) 40 Vout (Min) (V) 0 Vout (Max) (V) 40 Iout (Max) (A) 1.2 Iq (Typ) (mA) 3.5 LED current per channel (mA) 400 Operating temperature range (C) -40 to 125 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Power Good, Precision Dimming Control, Thermal Foldback, Thermal Shutdown Applications Daytime Running, Dome, Fog, Foot Well, FootWell, Position, Stop/Tail Rating Automotive open-in-new Find other Automotive LED drivers

Package | Pins | Size

TSSOP (PW) 28 62 mm² 9.7 x 6.4 open-in-new Find other Automotive LED drivers


  • AEC-Q100 Qualified
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Wide Voltage Input Range From 4.5 V to 40 V
  • 3-Channel High-Side Current Driving and Sensing
    • Channel-Independent Current Setting
    • Channel-Independent PWM Inputs
    • PWM Dimming via Both PWM Inputs and Power Supply
    • Optimized Slew Rate for EMC
  • High-Precision LED Driving
    • Precision Current Regulation With External N-Channel MOSFET (2.5% Tolerance)
    • 20:1 Analog Dimming Profile With Off-Board Bin Resistor Support
    • Precision PWM Generator With Full Duty-Cycle Mask (2% Tolerance)
    • Open-Drain PWM Output for Synchronization
  • Protection and Diagnostics
    • Adjustable Output Current Derating for External MOSFET Thermal Protection
    • Diagnostics for LED-String Open Circuit or Short Circuit With Auto Recovery
    • Diagnostic-Enable With Adjustable Threshold for Low-Voltage Operation
    • Fault Bus up to 15 Devices, Configurable As Either One-Fails–All-Fail or Only-Failed-Channel-Off
    • Low Quiescent Current in Fault Mode (<0.75 mA per Device)
  • Operating Junction Temperature Range: –40°C to 150°C
  • TSSOP 28 Package (PW)

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open-in-new Find other Automotive LED drivers


With the trend of better lighting homogeneity, high-current LEDs are often used in automotive front and rear lamps with lighting diffusers and light-guides. Meanwhile, in order to meet strict EMC and reliability requirements, linear LED drivers are popular in automotive applications. However, it is a challenge to deliver high current for linear LED drivers with integrated power transistors. The TPS92830-Q1 device is an advanced automotive-grade high-side constant-current linear LED controller for delivering high current using external N-channel MOSFETs. The device has a full set of features for automotive applications and is compatible with a wide selection of N-channel MOSFETs.

Each channel of the TPS92830-Q1 device sets the channel current independently by the sense-resistor value. An internal precision constant-current regulation loop senses the channel current by the voltage across the sense resistor and controls the gate voltage of the N-channel MOSFET accordingly. The device also integrates a two-stage charge pump for low-dropout operation. The charge-pump voltage is high enough to support a wide selection of N-channel MOSFETs. PWM dimming allows multiple

sources for flexibility—internal PWM generator, external PWM inputs, or power supply dimming. Various diagnostics and protection features specially designed for automotive applications help improve system robustness and ease of use. A one-fails–all-fail fault bus supports TPS92830-Q1 operation together with the TPS92630-Q1, TPS92638-Q1, and TPS9261x-Q1 family to fulfill various fault-handling requirements.

open-in-new Find other Automotive LED drivers

Technical documentation

= Featured
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet TPS92830-Q1 3-Channel High-Current Linear LED Controller datasheet (Rev. B) Jan. 16, 2018
Technical articles TI at the Auto Lamp Exhibition 2018 in Shanghai Mar. 30, 2018
Solution guides LED Drivers for Automotive Exterior Applications (Rev. B) Mar. 27, 2018
Selection guides 汽车外部照明应用的LED驱动器 Mar. 15, 2018
Technical articles A wiser choice for automotive lighting Nov. 29, 2017
User guides TPS92830EVM User's Guide Jul. 04, 2017
Technical articles Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical articles LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide
The TPS92830-Q1 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS92830-Q1, a 3-channel high-current linear LED controller for automotive lighting applications. It features precision current regulation with external MOSFET. It also has full diagnostics for (...)
  • Channel-current setting by separate high-side sensing resistors
  • LED short and open protection and fault reporting
  • Stand-alone operation with full duty cycle or PWM dimming via internal PWM generator
  • Analog dimming with potentiometer on LED board (can be used for bin resistor)
  • Current derating during (...)

Design tools & simulation

SLIM338B.ZIP (54 KB) - PSpice Model

Reference designs

EMC-Compliant, Automotive LED Turn Indicator Reference Design
TIDA-01376 — This automotive reference design details a solution for a turn indicator application. The automotive battery directly supplies the TPS92830-Q1 linear lightemitting-diode (LED) controller used in this design. This reference design features robust electromagnetic compatibility (EMC) performance, full (...)
document-generic Schematic document-generic User guide
EMC-Compliant, Automotive Stop Light and Tail Light Reference Design
TIDA-01374 — This automotive reference design details a solution for a stop light and a tail light. The automotive battery directly supplies the TPS92830-Q1 linear lightemitting-diode (LED) controller used in this design, which allows the designer to use the same LEDs for both functions. This reference design (...)
document-generic Schematic document-generic User guide
EMC-Compliant Automotive Daytime Running Light and Position Light Reference Design
TIDA-01375 — This reference design details a solution for an automotive daytime running light (DRL) and position light. The TPS92830-Q1 linear LED controller used in this design is directly supplied from the automotive battery, allowing you to use the same LEDs for both functions. This reference design also (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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TSSOP (PW) 28 View options

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TPS92830-Q1 Automotive LED controller demo

The TPS92830-Q1 automotive LED controller allows you to achieve higher power in your automotive lighting design. View the device's capabilities in this video.

Posted: 28-Jan-2017
Duration: 03:16

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