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Product details

Parameters

Topology Current Source Channels (#) 1 Vin (Min) (V) 4.5 Vin (Max) (V) 40 LED current per channel (mA) 300 Operating temperature range (C) -40 to 125 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Thermal Shutdown Applications Dome, Foot Well, FootWell, Stop/Tail, Turn Rating Automotive open-in-new Find other Automotive LED drivers

Package | Pins | Size

HVSSOP (DGN) 8 15 mm² 3 x 4.9 open-in-new Find other Automotive LED drivers

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • Functional safety capable
    • Documentation available to aid functional safety system design
  • Single-Channel Constant-Current LED Driver With PWM Dimming
  • Wide Input-Voltage Range: 4.5 V–40 V
  • Constant Output Current, Adjustable by Sense Resistor
  • Precision Current Regulation, Tolerance ±4.6%
  • Maximum Current: 300 mA
  • Heat Sharing With External Resistor
  • Low Dropout Voltage (Current-Sense Voltage Drop Included)
    • Maximum Dropout: 150 mV at 10 mA
    • Maximum Dropout: 400 mV at 70 mA
    • Maximum Dropout: 700 mV at 150 mA
    • Maximum Dropout: 1.3 V at 300 mA
  • Diagnostics and Protection
    • LED Open-Circuit and Short-Circuit Detection With Auto-Recovery
    • Diagnostic-Enable With Adjustable Threshold for Low-Dropout Operation
    • Fault Bus up to 15 Devices, Configurable As Either One-Fails–All-Fail or Only-Failed-Channel Off
    • Low Quiescent Current and Fault-Mode Current (<250 µA per Device)
  • Operating Junction Temperature Range: –40°C to 150°C

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Description

With LEDs being widely used in automotive applications, simple LED drivers are more and more popular. Compared to discrete solutions, a low-cost monolithic solution lowers system-level component counts and significantly improves current accuracy and reliability.

The TPS92611-Q1 device is a simple single-channel high-side LED driver operating from an automotive car battery. It is a simple and elegant solution, with LED diagnostics, to deliver constant current for a single LED string. Its one-fails–all-fail feature is able to work together with other LED drivers, such as the TPS9261x-Q1, TPS9263x-Q1, and TPS9283x-Q1 devices, to address different requirements.

open-in-new Find other Automotive LED drivers
Download

Technical documentation

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$149.00
Description
The TPS92611-Q1 evaluation module (EVM) helps designers evaluate the operation and performance of TPS92611-Q1, a single-channel linear LED driver for automotive lighting applications. It features precision current regulation with PWM dimming. It also has full diagnostics for LED-string open and LED (...)
Features
  • Constant output current set by high-side reference resistor
  • LED short and open detection with auto-recovery
  • Open-fault detection mask during dropout mode

Design tools & simulation

SIMULATION MODELS Download
SLDM010B.ZIP (52 KB) - PSpice Model

Reference designs

REFERENCE DESIGNS Download
Automotive dual stage (SEPIC + Linear) static LED driver module reference design for rear-lights
TIDA-020009 — This reference design details a solution for driving LEDs in an automotive rear-light application such as a rear combination lamp (RCL). It features linear LED drivers for different rear light light functions and the LED drivers are powered by a single ended primary inductance converter (SEPIC) LED (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Bulk current injection (BCI) compliant automotive rear light reference design
TIDA-050041 — This reference design for TPS92611-Q1 is an automotive rear light EMC compliant design. This is a direct connection to battery application with multiple single channel device and the fault pins are connected together to realize one-fails-all-fail function. This reference design provides some (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HVSSOP (DGN) 8 View options

Ordering & quality

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