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LP3958

ACTIVO

Unidad de gestión de la iluminación con convertidor boost de alto voltaje

Detalles del producto

Number of channels 5 Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 8 Vout (max) (V) 18 Type Inductive Switching frequency (max) (kHz) 1000 Duty cycle (max) (%) 100 LED current per channel (mA) 25 Peak efficiency (%) 90 Topology Boost Features I2C control Operating temperature range (°C) -30 to 85 Rating Catalog
Number of channels 5 Vin (min) (V) 3 Vin (max) (V) 5.5 Vout (min) (V) 8 Vout (max) (V) 18 Type Inductive Switching frequency (max) (kHz) 1000 Duty cycle (max) (%) 100 LED current per channel (mA) 25 Peak efficiency (%) 90 Topology Boost Features I2C control Operating temperature range (°C) -30 to 85 Rating Catalog
DSBGA (YZR) 25 7.5625 mm² (— mm × — mm)
  • High-Efficiency Boost Converter With Programmable Output Voltage
  • Two Individual Drivers for Serial Display Backlight LEDs
  • Three Drivers for Serial Keypad LEDs
  • Automatic Dimming Controller
  • Stand Alone Serial Leypad LEDs Controller
  • Three General-Purpose IO Pins
  • 25-Bump DSBGA Package: 2.54mm x 2.54mm x 0.6mm

All trademarks are the property of their respective owners.

  • High-Efficiency Boost Converter With Programmable Output Voltage
  • Two Individual Drivers for Serial Display Backlight LEDs
  • Three Drivers for Serial Keypad LEDs
  • Automatic Dimming Controller
  • Stand Alone Serial Leypad LEDs Controller
  • Three General-Purpose IO Pins
  • 25-Bump DSBGA Package: 2.54mm x 2.54mm x 0.6mm

All trademarks are the property of their respective owners.

LP3958 is a Lighting Management Unit for portable applications. It is used to drive display backlight and keypad LEDs. The device can drive 5 separately connected strings of LEDs with high voltage boost converter.

The keypad LED driver allows driving LEDs from high voltage boost converter or separate supply voltage.The MAIN and SUB outputs are high resolution current mode drivers. Keypad LED outputs can be used in switch mode and current mode. External PWM control can be used for any selected outputs.

The device is controlled through 2-wire low voltage I2C compatible interface that reduces the number of required connections.

LP3958 is offered in a tiny 25-bump DSBGA package.

LP3958 is a Lighting Management Unit for portable applications. It is used to drive display backlight and keypad LEDs. The device can drive 5 separately connected strings of LEDs with high voltage boost converter.

The keypad LED driver allows driving LEDs from high voltage boost converter or separate supply voltage.The MAIN and SUB outputs are high resolution current mode drivers. Keypad LED outputs can be used in switch mode and current mode. External PWM control can be used for any selected outputs.

The device is controlled through 2-wire low voltage I2C compatible interface that reduces the number of required connections.

LP3958 is offered in a tiny 25-bump DSBGA package.

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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 LP3958 Lighting Management Unit with High Voltage Boost Converter datasheet (Rev. C) 10/03/2013
Informe Common LED Functions and LED Driver Design Considerations 21/09/2020

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.

Encapsulado Pines Símbolos CAD, huellas y modelos 3D
DSBGA (YZR) 25 Ultra Librarian

Pedidos y calidad

Soporte y capacitación

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