onsemi CAT4134HV2-GT2

Lead Free RoHS Compliant DUAL Halogen Free IC LED Driver -40C~85C TA 900kHz 1.2MHz 4.2V 250mA

CAT4134HV2-GT2, LED DISPLAY DRIVER 2-SEGMENTS, 2.8 - 4.2 V, 12-PIN TDFN

LED Driver, Dual Channel Movie / Flash, 500 mA

LED Driver 6 Segment 12-Pin TDFN EP T/R

LED DRVR 6Segment 3.3V 12-Pin TDFN T/R

IC LED DRIVER RGLTR 250MA 12TDFN

The CAT4134 is a high power dual channel boost converter which provides two matched LED currents. Output current levels are controlled by one of two resistors RSET or RFLASH. When the FLASH input pin is low (movie mode) RSET sets the current. When FLASH is high (flash mode) the resistor RFLASH sets the LED current. Each channel drives two or three white LEDs in series and provides a regulated current to control their brightness. Input supply down to 3V is supported making the device ideal for Li-Ion battery applications. High frequency low noise operation allows the device to be used with small external inductors and ceramic capacitors while still maintaining excellent efficiency. When not in use the device can be placed into a zero quiescent mode via the shutdown pin. In addition to soft-start control and current limiting the CAT4134 include thermal shutdown protection. A dedicated overvoltage pin (OVP) allows the user to limit the maximum LED supply voltage. The device is packaged in the 12-pad TDFN 3mm X 3mm.