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Controladores para LED en automóviles
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TPS92629-Q1

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Controlador LED de canal único y 40 V de lado alto de alta corriente con uso compartido térmico auto

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TPS92629-Q1

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Detalles del producto

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 Features Analog Dimming, Distinguish Fault, 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) 0.25 Features Analog Dimming, Distinguish Fault, 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 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

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.

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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Documentación técnica

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* Data sheet TPS92629-Q1 Single-Channel, Automotive High Side LED Driver With Thermal Sharing Control datasheet PDF | HTML 18 ene 2022
Certificate TPS92629Q1EVM EU RoHS Declaration of Conformity (DoC) 10 oct 2022
EVM User's guide TPS92629Q1EVM User's Guide PDF | HTML 28 sep 2022

Diseño y desarrollo

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Placa de evaluación

TPS92629Q1EVM — Módulo de evaluación TPS92629-Q1 para controlador LED de lado alto de 40 V de canal único con uso co

El TPS92629Q1EVM evalúa el funcionamiento y el rendimiento del TPS92629-Q1, un controlador LED lineal de canal único con diagnóstico LED completo para aplicaciones de iluminación automotriz.

Guía del usuario: PDF | HTML
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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