Linear LED Drivers | CAT4002A

LED 驱动器，2 沟道，带 32 个调光级别和重置

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CAT4002A 提供两个匹配的低漏电流源来驱动 LED。CAT4002A 使用外部电阻 RSET 设置 LED 沟道中的电流。每个 LED 沟道都包含一个单独的控制环路，使得该器件能够处理较宽的 LED 前向电压范围，同时能够保持严格的电流匹配。EN/DIM 逻辑输入支持器件启用和数字调光接口，用于以 32 个线性调光级别设置 LED 沟道电流。由于低漏（50 mV，20 mA）汲电流，LED 可直接从锂离子电池供电。该器件采用 6 引线 TSOT-23 和 SC-70 封装。

  • LCD Display Backlight

  • Mobile Phones
  • Digital Still Cameras

  • 2 LED Current Sinks with Tight Matching
  • 32 Dimming Levels
  • Low Dropout Driver 50 mV at 20 mA
  • No Switching Noise
  • Shutdown Current less than 1 µA
  • LED Current set by External Resistor
  • Dimming via 1-wire EZDim Interface
  • Thermal Shutdown Protection

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MSL Temp (°C)

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VI Max (V)

IO Max (mA)

LEDs in Series, Max #

LEDs in Parallel, Max #

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CAT4002ASD-GT3

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CAD Model

Pb

A

H

P

SC-88-6 / SC-70-6 / SOT-363-6

419AD

1

260

REEL

3000

Y

5.5

40

1

2

$0.2032

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CAT4002ATD-GT3

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Obsolete

CAD Model

Pb

A

H

P

TSOT-23-6

419AF

1

220

REEL

3000

N

5.5

40

1

2

Price N/A

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Die Related Summary Data

Device: CAT4002ASD-GT3

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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