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TPS92629-Q1
  • TPS92629-Q1
  • TPS92629-Q1
  • TPS92629-Q1

TPS92629-Q1

ACTIVE

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

Texas Instruments TPS92629-Q1 Product Info

1 April 2026 6

Parameters

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)

0.25

Iq (typ) (mA)

1.1

Features

Analog Dimming, Distinguish Fault, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, PWM Dimming, Thermal Sharing, Thermal shutdown

Package

HVSSOP (DGN)-8-14.7 mm² 3 x 4.9

Features

  • 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 quiescent current
    • 10 uA with EN low in shutdown mode
    • Low supply current in fault mode
  • Single-channel high-precision current regulation:
    • Up to 250-mA output channel current
    • Integrated analog dimming and PWM dimming control
    • ±5% accuracy under PWM dimming mode over full temperature range
    • ±5% accuracy under analog dimming mode for 20%~100% maximum current over full temperature range
    • ±10% accuracy under analog dimming mode for 10%~20% maximum current over full temperature range
  • Low dropout voltage:
    • Maximum dropout: 350 mV for 150 mA
    • Maximum dropout: 500 mV for 250 mA
  • Diagnostics and protection
    • LED open-circuit with auto-recovery
    • LED short-to-GND with auto-recovery
    • LED short-to-battery with auto-recovery
    • Diagnostic enable with adjustable threshold for low-dropout operation
    • More safe system with multiple fault report capability
    • 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 quiescent current
    • 10 uA with EN low in shutdown mode
    • Low supply current in fault mode
  • Single-channel high-precision current regulation:
    • Up to 250-mA output channel current
    • Integrated analog dimming and PWM dimming control
    • ±5% accuracy under PWM dimming mode over full temperature range
    • ±5% accuracy under analog dimming mode for 20%~100% maximum current over full temperature range
    • ±10% accuracy under analog dimming mode for 10%~20% maximum current over full temperature range
  • Low dropout voltage:
    • Maximum dropout: 350 mV for 150 mA
    • Maximum dropout: 500 mV for 250 mA
  • Diagnostics and protection
    • LED open-circuit with auto-recovery
    • LED short-to-GND with auto-recovery
    • LED short-to-battery with auto-recovery
    • Diagnostic enable with adjustable threshold for low-dropout operation
    • More safe system with multiple fault report capability
    • Thermal shutdown
  • Operation junction temperature range: –40°C to 150°C

Description

The TPS92629-Q1 single-channel LED driver includes a unique thermal management design to reduce temperature rising on the device. The TPS92629-Q1 is a linear driver directly powered by automotive batteries with large voltage variations to output full current loads up to 250 mA. 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, LED short-to-battery circuit and device overtemperature protection. The high accuracy and optimized slew rate of analog dimming control supports off board long wire driving with enhanced EMC performance and eliminates the flick and afterimage issue. The multiple fault could be reported out by different voltage levels through fault pins for safety critical applications.

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