AC-DC LED Drivers | FAN7346

LED 电流平衡控制器，用于照明，4 沟道

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概览

FAN7346 是一款 LED 电流平衡控制器，控制 4-LED 阵列，使其保持相同的 LED 电流。FAN7346 具有较高耐压，因此适用于边缘型 LED BLU 和 LED 照明。为了最大程度减少主节点和辅助接点之间的组件数量，FAN7346 会生成一个新的集成反馈信号。FAN7346 提供了多种保护，如过电压调节、开路 LED 保护、高温保护和调节开关的漏极-源极电压保护（FAN7346 监控所有 LED 镇流的漏极-源极电源以提供保护）。为了提高系统可靠性，FAN7346 采用单个的串保护。因为 FAN7346 集成了这么多功能，所以降低了总体 BOM 成本。通过向 PWM 引脚应用脉宽调制 (PWM) 信号，可以对 LED 亮度进行线性变化以达到 LED 电流。FAN7346 采用 28-SOIC 封装。

  • 照明

  • 宽LED灯串电压范围： £100V
  • 宽VCC电压： 10.5V至35V
  • 外部线性调节开关： MOSFET或BJT
  • 用于反馈的内部电压调节器
  • 监控外部开关的漏源极电压
  • 精密电流精度调整到1.5%
  • 支持外部PWM照明-正极
  • 支持宽照明比： 0.5%~100%
  • 自适应线性调节方法
  • 产生初级控制器集成反馈信号（电流反馈+PWM照明）
  • 通过初级端之间反馈实现的高效率
  • 热关断（自动恢复）
  • 过压调节
  • 独立通道开路LED保护
  • 独立通道过流保护
  • 独立通道短路LED保护
  • 28引脚SOIC
  • 误差标签输出

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Reference Price

FAN7346MX

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Obsolete

CAD Model

Pb

A

H

P

SOIC-28W

751BM

3

260

REEL

1000

N

LED String Current Controller

10.5 VDC

100 VDC - VCH1/2/3/4

17 - VOUT

150/500 - Isource/sink

Linear

Price N/A

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可靠性数据

Die Related Summary Data

Device: FAN7346MX

Equivalent to wafer fab process: BD

产品技术

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

BD

0

1595257088

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Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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