TPS61194

ACTIVO

Controlador de LED de alto rendimiento, 4 canales y EMI bajo

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Hoja de datos

document-pdfAcrobat TPS61194 High-Performance Four-Channel LED Driver datasheet (Rev. D) (Inglés) PDF | HTML

TPS61194

ACTIVO

Hoja de datos

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Detalles del producto

Number of channels

4

Topology

Boost

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Vin (min) (V)

4.5

Vin (max) (V)

40

Vout (min) (V)

6

Vout (max) (V)

45

Iout (max) (A)

0.4

Iq (typ) (mA)

5

Switching frequency (max) (kHz)

2200

Features

Adjustable Switch Frequency, Global dimming, Integrated Switch

Number of channels

4

Topology

Boost

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Vin (min) (V)

4.5

Vin (max) (V)

40

Vout (min) (V)

6

Vout (max) (V)

45

Iout (max) (A)

0.4

Iq (typ) (mA)

5

Switching frequency (max) (kHz)

2200

Features

Adjustable Switch Frequency, Global dimming, Integrated Switch

HTSSOP (PWP)

20

41.6 mm² (6.5 mm × 6.4 mm)

Input voltage operating range 4.5 V to 40 V
Four high-precision current sinks
- Current matching 1% (typical)
- LED string current up to 100 ma per channel
- Outputs can be combined externally for higher current per string
High dimming ratio of 10 000:1 at 100 Hz
Integrated boost/SEPIC converter for led string power
- Output voltage up to 45 V
- Switching frequency 300 kHz to 2.2 MHz
- Switching synchronization input
- Spread spectrum for lower EMI
Extensive fault detection features
- Fault output
- Input voltage OVP and UVLO
- Open and shorted LED fault detection
- Thermal shutdown
Minimum number of external components

Input voltage operating range 4.5 V to 40 V
Four high-precision current sinks
- Current matching 1% (typical)
- LED string current up to 100 ma per channel
- Outputs can be combined externally for higher current per string
High dimming ratio of 10 000:1 at 100 Hz
Integrated boost/SEPIC converter for led string power
- Output voltage up to 45 V
- Switching frequency 300 kHz to 2.2 MHz
- Switching synchronization input
- Spread spectrum for lower EMI
Extensive fault detection features
- Fault output
- Input voltage OVP and UVLO
- Open and shorted LED fault detection
- Thermal shutdown
Minimum number of external components

The TPS61194 is a high-efficiency, low-EMI, easy-to-use LED driver with flexibility to support a wide range of applications. It has four high-precision current sinks that can be combined for higher current capability.

The TPS61194 has an integrated DC-DC supporting both boost and SEPIC mode operation. The converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to lowest sufficient level in all conditions. For EMI control the DC-DC converter supports spread spectrum for switching frequency and an external synchronization with dedicated pin.

The TPS61194 has wide input voltage range from 4.5 V to 40 V for robust support of different types of applications. The TPS61194 integrates extensive fault detection features. The device supports PWM brightness dimming ratio of 10 000:1 for 100-Hz input PWM frequency.

The TPS61194 is a high-efficiency, low-EMI, easy-to-use LED driver with flexibility to support a wide range of applications. It has four high-precision current sinks that can be combined for higher current capability.

The TPS61194 has an integrated DC-DC supporting both boost and SEPIC mode operation. The converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to lowest sufficient level in all conditions. For EMI control the DC-DC converter supports spread spectrum for switching frequency and an external synchronization with dedicated pin.

The TPS61194 has wide input voltage range from 4.5 V to 40 V for robust support of different types of applications. The TPS61194 integrates extensive fault detection features. The device supports PWM brightness dimming ratio of 10 000:1 for 100-Hz input PWM frequency.

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Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Descargar la versión más reciente en inglés	Fecha
*	Hoja de datos	TPS61194 High-Performance Four-Channel LED Driver datasheet (Rev. D)	PDF \| HTML		27/05/2021
	Nota sobre la aplicación	Some Guidelines and Tips for the LED Driver Application			14/08/2019

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPS61194EVM — Módulo de evaluación TPS61194 de controlador de LED de 4 canales

El módulo de evaluación TPS61194EVM (EVM) ayuda a los diseñadores a evaluar el funcionamiento y rendimiento de este dispositivo. El TPS61194EVM utiliza el TPS61194 para controlar hasta 4 cadenas de LED (de hasta 12 LED cada una, 36 LED en total) para la retroiluminación de pantallas LCD con alta (...)

Guía del usuario: PDF

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