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Texas Instruments TPS92610-Q1 Automotive Single-Channel LED Drivers

Texas Instruments TPS92610-Q1 Automotive Single-Channel LED Driver is a simple and ideal solution to deliver constant current for a single LED string with full LED diagnostics. The device operates from an automotive car battery. The TPS92610-Q1 addresses different requirements using the TPS9261x-Q1, TPS9263x-Q1, and TPS9283x-Q1 devices within the one-fails–all-fail feature. The TPS92610-Q1 devices are AEC-Q100 qualified for automotive applications.

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
  • Single-channel constant-current LED driver with PWM dimming
  • 4.5V to 40V Wide input-voltage range
  • –40°C to 150°C Operating junction temperature range
  • Constant output current, adjustable by a sense resistor
  • Precision current regulation, tolerance ±4.6% across junction temperature –40°C to 150°C
  • 450mA Maximum current
  • Heat sharing with an external resistor
  • Low dropout voltage (Sense–resistor voltage drop included)
    • 150mV at 10mA Maximum dropout
    • 400mV at 70mA Maximum dropout
    • 700mV at 150mA Maximum dropout
    • 1.3V at 300mA Maximum dropout
  • Diagnostics and protection
    • Single-LED short-circuit detection with auto-recovery
    • LED Open-circuit and short-circuit detection with auto-recovery
    • Diagnostic-enable with an 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 (<250µA per device)

Applications

  • Automotive convenience lighting, including dome lights, door handles, reading lamps, and miscellaneous lamps
  • General-purpose LED driver application
  • Automotive rear lamp, center high-mounted stop lamp, side markers, blind-spot detection indicator, charging inlet indicator

Block Diagram

Block Diagram - Texas Instruments TPS92610-Q1 Automotive Single-Channel LED Drivers
發佈日期: 2018-11-15 | 更新日期: 2023-07-20