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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 2.75 x 2.75
  • 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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* Data sheet LP3958 Lighting Management Unit with High Voltage Boost Converter datasheet (Rev. C) 10 mar 2013
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 abr 2024
White paper Common LED Functions and LED Driver Design Considerations 21 sep 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.

Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

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

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Soporte y capacitación

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