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LP3958

現行

具高電壓升壓轉換器的照明管理單元

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產品規格表

LP3958

現行
產品規格表 立即訂購

產品詳細資料

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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類型 標題 日期
* Data sheet LP3958 Lighting Management Unit with High Voltage Boost Converter datasheet (Rev. C) 2013年 3月 10日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日

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DSBGA (YZR) 25 Ultra Librarian
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