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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

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数据表

LM3553

正在供货
数据表 立即订购

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 mm × 3 mm)
  • 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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顶层文档 类型 标题 格式选项 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) 2013-5-1
白皮书 常见 LED 功能和 LED 驱动器设计注意事项 英语版 2020-9-21
应用手册 LM3553 1.2A Dual Flash LED Driver System with I2C Compatible Interface (Rev. B) 2013-4-30

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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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