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TPS92621-Q1

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Automotive, single-channel high-current 40-V high-side LED driver with thermal sharing

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Data sheet

TPS92621-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Topology Current Source Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 40 Vout (min) (V) 0 Vout (max) (V) 40 Iout (max) (A) 0.3 Iq (typ) (mA) 0.7 Features Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, PWM Dimming, Thermal Sharing, Thermal shutdown
Number of channels 1 Topology Current Source Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 40 Vout (min) (V) 0 Vout (max) (V) 40 Iout (max) (A) 0.3 Iq (typ) (mA) 0.7 Features Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, PWM Dimming, Thermal Sharing, Thermal shutdown
HVSSOP (DGN) 8 14.7 mm² 3 x 4.9
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, T A
  • Wide input voltage range: 4.5 V to 40 V
  • Thermal sharing by external shunt resistor
  • Low supply current in fault mode
  • Single high-precision current regulation:
    • Up to 300-mA current output
    • ±5% accuracy over full temperature range
    • Current setting by resistor
    • PWM pin for brightness control
  • Low dropout voltage:
    • Maximum dropout: 300mV for 150 mA
    • Maximum dropout: 600mV for 300 mA
  • Diagnostics and protection
    • LED open-circuit with auto-recovery
    • LED short-to-GND with auto-recovery
    • Diagnostic enable with adjustable threshold
    • Fault bus configurable as one-fails-all-fail
    • Thermal shutdown
  • Operation junction temperature range:–40°C to 150°C
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, T A
  • Wide input voltage range: 4.5 V to 40 V
  • Thermal sharing by external shunt resistor
  • Low supply current in fault mode
  • Single high-precision current regulation:
    • Up to 300-mA current output
    • ±5% accuracy over full temperature range
    • Current setting by resistor
    • PWM pin for brightness control
  • Low dropout voltage:
    • Maximum dropout: 300mV for 150 mA
    • Maximum dropout: 600mV for 300 mA
  • Diagnostics and protection
    • LED open-circuit with auto-recovery
    • LED short-to-GND with auto-recovery
    • Diagnostic enable with adjustable threshold
    • Fault bus configurable as one-fails-all-fail
    • Thermal shutdown
  • Operation junction temperature range:–40°C to 150°C

The TPS92621-Q1 single-channel LED driver includes a unique thermal management design to reduce temperature rising on the device. The TPS92621-Q1 is a linear driver directly powered by automotive batteries with large voltage variations to output full current loads up to 300 mA. Shunt resistor is leveraged to share output current and dissipate power out of the driver. The device full-diagnostic capabilities include LED open, LED short-to-GND circuit, and device overtemperature protection.

The one-fails-all-fail feature of TPS92621-Q1 can work together with other LED drivers, such as the TPS9261x-Q1, TPS9262x-Q1, TPS9263x-Q1, and TPS92830-Q1 devices, to address different requirements.

The TPS92621-Q1 single-channel LED driver includes a unique thermal management design to reduce temperature rising on the device. The TPS92621-Q1 is a linear driver directly powered by automotive batteries with large voltage variations to output full current loads up to 300 mA. Shunt resistor is leveraged to share output current and dissipate power out of the driver. The device full-diagnostic capabilities include LED open, LED short-to-GND circuit, and device overtemperature protection.

The one-fails-all-fail feature of TPS92621-Q1 can work together with other LED drivers, such as the TPS9261x-Q1, TPS9262x-Q1, TPS9263x-Q1, and TPS92830-Q1 devices, to address different requirements.
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Type Title Date
* Data sheet TPS92621-Q1 Single-Channel, Automotive, High Side LED Driver with Thermal Sharing datasheet PDF | HTML 05 Apr 2023
Certificate TPS92621Q1EVM EU Declaration of Conformity (DoC) 24 Jul 2023

Design & development

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Evaluation board

TPS92621Q1EVM — TPS92621-Q1 evaluation module for single-channel 40-V high-side LED driver with thermal sharing

The TPS92621Q1EVM helps designers evaluate the operation and performance of the TPS92621-Q1 which is a linear, single-channel LED driver with full LED diagnostic for automotive lighting applications. Thermal is a design challenge when using a linear LED driver in automotive lighting end (...)

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TPS92621-CALC — TPS92621-Q1 external components calculation tool

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Automotive LED drivers
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