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LM3553

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具有 I2C 兼容接口的 1.2A 双闪存 LED 驱动器系统

产品详情

Input voltage type DC/DC Topology Boost, current mode Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 2.7 Iout (max) (A) 1.2 Iq (typ) (mA) 1 Features I2C control Operating temperature range (°C) -30 to 85 Dimming method Analog, PWM Number of channels 2 Rating Catalog
Input voltage type DC/DC Topology Boost, current mode Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 2.7 Iout (max) (A) 1.2 Iq (typ) (mA) 1 Features I2C control Operating temperature range (°C) -30 to 85 Dimming method Analog, PWM Number of channels 2 Rating Catalog
WSON (DQB) 12 9 mm² 3 x 3
  • Accurate and Programmable LED Current up to 1.2A in 128 Steps
  • Total Solution Size < 30mm2
  • 90% Peak Efficiency
  • Drives 2 LEDs in Series with 1.2A from 5V Input
  • Drives 2 LEDs in Series with 600mA from 3.0V Input
  • Drives 1 LED with 1.2A from 3.0V Input
  • Adjustable Over-Voltage Protection Allows for Single or Series LED Operation
  • Four Operating Modes: Torch, Flash, Indicator, and Voltage Mode (4.98V)
  • Programmable Flash Pulse Safety Timer in 16 Steps
  • TX Input Ensures Synchronization with RF Power Amplifier Pulse or Prevents LED from Overheating
  • LED Disconnect During Shutdown
  • Flash/Imager Synchronization via FEN Pin
  • Active Low Hardware Reset
  • Multi-Function Pin (RESET and GPIO)
  • Low Profile 12-pin WSON Package (DQB0012A: 3mm x 3mm x 0.8mm, 0.4mm pitch)

All trademarks are the property of their respective owners.

  • Accurate and Programmable LED Current up to 1.2A in 128 Steps
  • Total Solution Size < 30mm2
  • 90% Peak Efficiency
  • Drives 2 LEDs in Series with 1.2A from 5V Input
  • Drives 2 LEDs in Series with 600mA from 3.0V Input
  • Drives 1 LED with 1.2A from 3.0V Input
  • Adjustable Over-Voltage Protection Allows for Single or Series LED Operation
  • Four Operating Modes: Torch, Flash, Indicator, and Voltage Mode (4.98V)
  • Programmable Flash Pulse Safety Timer in 16 Steps
  • TX Input Ensures Synchronization with RF Power Amplifier Pulse or Prevents LED from Overheating
  • LED Disconnect During Shutdown
  • Flash/Imager Synchronization via FEN Pin
  • Active Low Hardware Reset
  • Multi-Function Pin (RESET and GPIO)
  • Low Profile 12-pin WSON Package (DQB0012A: 3mm x 3mm x 0.8mm, 0.4mm pitch)

All trademarks are the property of their respective owners.

The LM3553 is a fixed frequency, current mode step-up DC/DC converter with two regulated current sinks. The device is capable of driving loads up to 1.2A from a single-cell Li-Ion battery.

The LM3553 includes a TX pin that forces Torch mode during a flash event allowing for synchronization between the RF power amplifier and Flash/Torch modes. It also includes a multi-function pin (M/F) that can serve as a GPIO and a hardware RESET pin.

The LM3553 is available in a 3mm by 3mm package.

The LM3553 is a fixed frequency, current mode step-up DC/DC converter with two regulated current sinks. The device is capable of driving loads up to 1.2A from a single-cell Li-Ion battery.

The LM3553 includes a TX pin that forces Torch mode during a flash event allowing for synchronization between the RF power amplifier and Flash/Torch modes. It also includes a multi-function pin (M/F) that can serve as a GPIO and a hardware RESET pin.

The LM3553 is available in a 3mm by 3mm package.

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类型 标题 下载最新的英语版本 日期
* 数据表 LM3553 1.2A Dual Flash LED Driver System with I 2 C Compatible Interface 数据表 (Rev. B) 2013年 5月 1日
白皮书 常见 LED 功能和 LED 驱动器设计注意事项 英语版 2020年 9月 21日
应用手册 LM3553 1.2A Dual Flash LED Driver System with I2C Compatible Interface (Rev. B) 2013年 4月 30日

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LM3553SDEV — 具有 I2C 兼容接口的 1.2A 双闪存 LED 驱动器系统

The LM3553 is a fixed frequency, current mode step-up DC/DC converter with two regulated current sinks. The device is capable of driving loads up to 1.2A from a single-cell Li-Ion battery.

One or more high current flash LEDs can be driven in series either in a high power Flash mode or a lower power (...)

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WSON (DQB) 12 Ultra Librarian

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包含信息:
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  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
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  • 封装厂地点

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