CAV4201 Datasheet | onsemi

350 m A High Efficiency Step Down LED Driver Description The CAV4201 is a high efficiency step- down converter optimized to drive high current LEDs. A patented switching control algorithm allows highly efficient and accurate LED current regulation. A single RSET resistor sets the full scale LED string current up to 350 m A from supplies as high as 36 V. The switching architecture of the CAV4201 results in extremely low internal power dissipation allowing the device to be housed in a tiny package without the need for dedicated heat sinking. The device is patible with switching frequencies of up to 1 MHz, making it ideal for applications requiring small footprint and low value external inductors. Enable, analog dimming and LED shutdown control is provided via a single input pin, CTRL. Additional Features include overload current protection and thermal shutdown. The device is available in the low profile 5- lead thin SOT23 package and is ideal for space constrained applications. Features - LED Drive Current up to 350 m A - patible with 12 V and 24 V Standard Systems - Handles Transients up to 40 V - Single Pin Control and Dimming Function - Power Efficiency up to 94% - Drives LED Strings of up to 32 V - Open and Short LED Protection - Parallel Configuration for Higher Output Current - CAV Prefix for Automotive and Other Applications requiring Site and Change Control - TSOT- 23 5- lead Package - These Devices are Pb- Free, Halogen Free/BFR Free and are Ro HS pliant Applications - 12 V and 24 V Lighting Systems - Automotive and Aircraft Lighting - General Lighting - High Brightness 350 m A LEDs VBAT 9 V C1 4.7 m F Enable / Analog Dimming R1 http://onsemi. 5 1 TSOT- 23 TD SUFFIX CASE 419AE PIN CONNECTIONS CTRL VBAT...