CAT4101 - ON Semiconductor

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

CAT4101
Manufacturer

ON Semiconductor
ChipWorker Part#

CW647961444
Description

LED Driver, 1A Constant Current with PWM
Documentation

Datasheet

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Product Description

The CAT4101 is a constant-current sink driving a string of high-brightness LEDs up to 1 A with very low dropout of 0.5 V at full load. It requires no inductor, provides a low noise operation and minimizes the number of components. The LED current is set by an external resistor connected to the RSET pin. The LED pin is compatible with high voltage up to 25 V, allowing the driving of long strings of LEDs. The device ensures an accurate and regulated current in the LEDs independent of supply and LED forward voltage variation. The PWM/EN input allows the device shutdown and the LED brightness adjustment by using an external pulse width modulation (PWM) signal. The driver features a thermal shutdown protection that becomes active whenever the die temperature exceeds 150C. The device is available in a high-power, 5-lead TO-263 package offering excellent thermal dissipation characteristics.
Features
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Accurate 1 A Current Sink
Up to 25 V Operation on LED Pin
Low Dropout 500 mV at 1 A
LED Current Set by External Resistor
High Resolution PWM Dimming via EN/PWM
"Zero" current Shutdown mode
Thermal Shutdown Protection
TO263 (D2PAK) 5-lead Package
This Device is Pb-Free, Halogen Free/BFR Free and is RoHS Compliant

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