Linear LED Drivers | CAT4004A

LED Driver, 4-Channel, with 32 Dimming Levels and Reset

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The CAT4004A provides four matched low dropout current sources to drive LEDs. The CAT400XA uses an external resistor RSET to set the current in the LED channels. Each LED channel includes an individual control loop allowing the device to handle a wide range of LED forward voltages while still maintaining tight current matching.

The EN/DIM logic inputs supports device enable and a digital dimming interface for setting the LED channel current with 32 linear dimming levels.

LEDs can be powered directly from a Lithium-ion battery due to the low dropout (50 mV at 20 mA) current sinks. The device is available in the tiny 8-pad UDFN 2 mm x 2 mm package with a max height of 0.55 mm.

  • LCD Display Backlight
  • Digital Still Cameras
  • Cellular Phones
  • Handheld Devices

  • 2 and 4 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
  • These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant

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CAT4004AHU2-GT3

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CAD Model

Pb

A

H

P

UDFN-8

517AW

1

260

REEL

3000

Y

5.5

40

1

4

$0.4905

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可靠性数据

Die Related Summary Data

Device: CAT4004AHU2-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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