LM3561TMX
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LM3561TMX

  • Category:converter
  • Product Name:The synchronous boost converter interfaces with a 600 mA high-side LED driver and I2C
  • Manufacturers:NSC
  • Production Batch Number:10+11+
  • Encapsulation:MICROSMD
  • Stock Status:There is stock
  • Stock Quantity:89500
  • Minimum order quantity: 1
  • Details:点击查找LM3561TMX的pdf资料
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  • Product introduction

peculiarity

高压侧电流源,允许接地的LED阴极
Up to 90% efficiency
超小型解决方案尺寸:三种工作模式:手电筒,闪光灯,和LED指示灯
准确和可编程18毫安600mA的LED电流
Hardware Flash and torch enabled
LED thermal sensing and current Scaleback
Software-selectable input voltage monitor
Programmable Flash timeout
Dual synchronous input RF power amplifier pulse events
Open and short LED detection
高电平五金启用对系统故障的防护
400kHz的我 2 C兼容接口
12焊球(1.215毫米×1.615毫米×0.6毫米)的micro SMD

illustrate

LM3561是2 MHz的固定频率,电流模式同步升压转换器。 该设备是作为一个单一的600毫安恒定电流驱动器的高电流白光LED设计工作。 高侧电流源允许LED操作的250mV的监管净空电压确保LED的电流是良好的监管和高效率仍然阴极接地。

LM3561的主要功能包括:一个我 2 C兼容硬件闪存接口用于控制LED电流,使直接的闪光脉冲,双Tx输入(TX1和TX2)强行进入低电流的火炬模式在高电池的当前实例的闪光脉冲,触发输入活跃​​的高硬件启用(HWEN),允许在系统软件故障的快速硬关机,双模针作为一个指标LED高达18毫安或作为一个专用的比较器输入驱​​动器,内部参考1V,旨在监视电压整个负温度系数热敏电阻(NTC),和一个可编程的输入电压监视,监控,并能降低在低电池条件下的闪光电流或关闭设备。

在我回读七故障标志 2 C兼容的总线。 这些包括:一个闪光超时标志表明闪光脉冲已经达到了可编程超时期限,一个热关机标志指示的LM3561的模具温度超过150 °彗星,一个LED的故障标志指示输出电压年底已绊倒过电压门槛,或LED已成为短路,中断标志位,如果都没有被触发的TX输入TX1和TX2,一个NTC的指示标志的LED经历了一个以上的温度条件,并已跌破一个VIN监视器标志,指示输入电压VIN监视器阈值。

LM3561是在一个很小的(1.215毫米×1.615毫米×0.6毫米)12焊球的micro SMD和工作在-40 ° C至+85 ° C温度范围。


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Camera phone LED flash controller
LED电流来源偏差

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LM3561TMX NSC 10+11+ MICROSMD The synchronous boost converter interfaces with a 600 mA high-side LED driver and I2C

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