Linear LED Drivers | CAT4109

LED 驱动器，RGB，3 沟道

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概览

CAT4109 是一款 3 沟道，恒定电流 LED 驱动器，无需电感器。高达 175 mA 的 LED 沟道电流通过单独的外部电阻进行独立编程。175 mA 时 0.4 V 的低输出电压运行可在多种供电电压范围内实现功效更佳的设计。三个 LED 引脚可兼容最高 25 V 的高电压，支持带有多个 LED 串联的应用。 三个单独控制输入 PWM1、PWM2、PWM3 分别控制 LED1、LED2、LED3 沟道。该器件还包括一个输出启用 (OE) 控制引脚，禁用所有三个沟道，而无论 PWMx 输入状态如何。 该器件结合了高温关断保护，可在片温度超过 150°C 时禁用 LED 输出。

  • LCD Backlighting

  • Architectural Lighting

  • 3 independent current sinks up to 175 mA rated 25 V
  • LED current set by external low power control resistors
  • Individual PWM control per channel
  • Low dropout current source (0.4 V at 175 mA)
  • Output Enable input for dimming
  • 'Zero' current shutdown mode
  • 3 V to 5.5 V logic supply
  • Thermal shutdown protection

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LEDs in Series, Max #

LEDs in Parallel, Max #

Reference Price

CAT4109V-GT2

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CAD Model

Pb

A

H

P

SOIC-16

751BG

1

260

REEL

3000

N

25

525

7

3

$0.516

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CAV4109V-GT2

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Active

CAD Model

Pb

A

H

P

SOIC-16

751BG

3

260

REEL

3000

Y

25

525

-

3

$0.6609

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可靠性数据

Die Related Summary Data

Device: CAT4109V-GT2

Equivalent to wafer fab process: CMOS SUB

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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

CMOS SUB

2

920154574

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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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