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TPS92624-Q1

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Automotive four-channel high-side LED driver with thermal sharing

Product details

Number of channels 4 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) 0.6 Iq (typ) (mA) 2 Features Fault Detection, Fault Diagnostic, LED Open Detection, LED Short Detection, LED Short to Ground Detection, Overtemperature protection, PWM Dimming, Thermal Sharing, Thermal shutdown
Number of channels 4 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) 0.6 Iq (typ) (mA) 2 Features Fault Detection, Fault Diagnostic, LED Open Detection, LED Short Detection, LED Short to Ground Detection, Overtemperature protection, PWM Dimming, Thermal Sharing, Thermal shutdown
HTSSOP (PWP) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to 125°C, TA
  • Wide input voltage range: 4.5 V to 40 V
  • Thermal sharing by external shunt resistor
  • Low supply current in fault mode
  • Four high-precision current regulation:
    • Up to 150-mA current output for each channel
    • ±5% accuracy over full temperature range
    • Independent current setting by resistor
    • Independent PWM pin for brightness control
  • Low dropout voltage:
    • Maximum dropout: 600 mV for 150 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 either one-fails–all-fail or only-failed-channel off (N-1)
    • 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, TA
  • Wide input voltage range: 4.5 V to 40 V
  • Thermal sharing by external shunt resistor
  • Low supply current in fault mode
  • Four high-precision current regulation:
    • Up to 150-mA current output for each channel
    • ±5% accuracy over full temperature range
    • Independent current setting by resistor
    • Independent PWM pin for brightness control
  • Low dropout voltage:
    • Maximum dropout: 600 mV for 150 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 either one-fails–all-fail or only-failed-channel off (N-1)
    • Thermal shutdown
  • Operation junction temperature range:–40°C to 150°C

The TPS92624-Q1 four-channel LED driver includes a unique thermal management design to reduce temperature rising on the device. The TPS92624-Q1 is a linear driver directly powered by automotive batteries with large voltage variations to output full current loads up to 150 mA per channel. External shunt resistors are leveraged to share output current and dissipate power out of the driver. The device’s full-diagnostic capabilities include LED open, LED short-to-GND circuit and device overtemperature protection.

The one-fails–all-fail feature of TPS92624-Q1 is able to work together with other LED drivers, such as the TPS9261x-Q1, TPS9262x-Q1, TPS92630/8-Q1, and TPS92830-Q1 devices, to address different requirements.

The TPS92624-Q1 four-channel LED driver includes a unique thermal management design to reduce temperature rising on the device. The TPS92624-Q1 is a linear driver directly powered by automotive batteries with large voltage variations to output full current loads up to 150 mA per channel. External shunt resistors are leveraged to share output current and dissipate power out of the driver. The device’s full-diagnostic capabilities include LED open, LED short-to-GND circuit and device overtemperature protection.

The one-fails–all-fail feature of TPS92624-Q1 is able to work together with other LED drivers, such as the TPS9261x-Q1, TPS9262x-Q1, TPS92630/8-Q1, and TPS92830-Q1 devices, to address different requirements.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS92624-Q1 Four-Channel, Automotive High Side LED Driver with Thermal Sharing Control datasheet (Rev. A) PDF | HTML Mar 21, 2022
Certificate TPS92624-Q1EVM EU RoHS Declaration of Conformity (DoC) Nov 5, 2021
User guide TPS92624-Q1EVM User's Guide PDF | HTML Sep 28, 2021

Design & development

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Evaluation board

TPS92624-Q1EVM — TPS92624-Q1 evaluation module for automotive four-channel high-side LED driver with thermal sharing

The TPS92624Q1EVM evaluates the operation and performance of the TPS92624-Q1, a linear four-channels LED driver with full LED diagnostic for automotive lighting applications.

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HTSSOP (PWP) 20 Ultra Librarian

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