Part Number
|
CAT4003B |
Manufacturer
|
ON Semiconductor |
Description
|
Constant Current Programmable LED Driver |
Published
|
Aug 9, 2010 |
Detailed Description
|
CAT4003B, CAT4004B
Constant Current
Programmable LED Driver
with 32 Dimming Levels
Description
The CAT4003B and CAT4004...
|
Datasheet
|
CAT4003B
|
Overview
CAT4003B, CAT4004B
Constant Current
Programmable LED Driver
with 32 Dimming Levels
Description
The CAT4003B and CAT4004B provide respectively three and four matched low dropout current sources to drive LEDs.
The CAT400XB requires no external RSET resistor.
The LED current is internally set to 25 mA when the device is first enabled.
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 input supports the 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 ...
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