TPS92610-Q1

• 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% Across Junction Temperature –40°C to 150°C
• Maximum Current: 450 mA
• Heat Sharing With External Resistor
• Low Dropout Voltage (Sense–Resistor 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
  • Single-LED Short-Circuit Detection With Auto-Recovery
  • 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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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 TPS92610-Q1 device is a simple single-channel high-side LED driver operating from an automotive car battery. It is a simple and elegant solution to deliver constant current for a single LED string with full LED diagnostics. 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.