Catalyst semiconductors 1 amp constant current low dropout LED driver

Analog, mixed signal and nonvolatile memory semiconductor supplier Catalyst semiconductor again extended the constant current LDD? (low dropout drive) line of products, buildings, landscape, and general LED lighting application provides a new and easy-to-use high power drive device. CAT4101 is a linear constant current LED driver, not only can drive a large number of LED series of LED series, and provide high current drive capability, is a good solution for all kinds of LED applications.

Since CAT4101 is a linear LED driver, it is not necessary to use the external inductor. In practical applications, the number of devices is reduced, the design is simplified, and the noise generated by the inductor is eliminated. The LED current is set by an external resistor connected to the REST pin. LED pin compatible high voltage up to 25V. This allows the CAT4101 to drive up to 10 sets of LED strings and the current can be adjusted to 1 amperes. The device provides high speed and high resolution PWM dimming function, but also includes the "instant light" type of PWM control mode and overheating automatic shutdown protection function. CAT4101 uses a 5 pin TO-263 package, which has excellent heat dissipation.

Product features:

High precision 1 amp drive current

LED pin operation up to 25V

Low dropout driver: 500mV/1 A

LED drive current is set by the external resistor of the chip

EN/PWM pin provides high precision PWM dimming

Overheat protection function

Package: 5 pin TO-263 package

Source: the world of electronic products