Datasheet ON Semiconductor CAT4101 — 数据表

CAT4101
1 A Constant-Current LED
Driver with PWM Dimming
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 150°C.
The device is available in a high−power, 5−lead TO−263 package
offering excellent thermal dissipation characteristics. http://onsemi.com D2PAK 5
(TO−263, 5 LEAD)
TV SUFFIX
CASE 418AH PIN CONNECTIONS
1 EN/PWM …