Linear LED Drivers | CAT4002A

LED Driver, 2-Channel, with 32 Dimming Levels and Reset

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Overview

The CAT4002A provides a two matched low dropout current sources to drive LEDs. The CAT4002A 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 6-lead TSOT-23 and SC-70.

  • 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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Reference Price

CAT4002ASD-GT3

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Active

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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Last Shipments

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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