onsemi CAT4240TD-GT3

LED Driver 10 Segment 5-Pin TSOT-23 T/R / IC LED DRIVER RGLTR DIM TSOT23-5

Lead Free RoHS Compliant GULL WING DUAL IC LED Driver -40C~85C TA 1MHz 5.5V 750mA Switch

LED Driver IC; Device Type:LED; Display Interface:7-segment numeric LED digits, bar graph, or discrete LEDs; Supply Voltage Max:5.5V; Termination Type:SMD; Package/Case:5-TSOT-23; No. of Pins:5 ;RoHS Compliant: Yes

LED DRIVER, 6 WATT, BOOST, TSOT23-5; LED Driver Application:Digital Camera, Navigation System; Topology:Boost; No. of Outputs:1; Output Current:31.5mA; Output Voltage:38V; Input Voltage:5.5V; Dimming Control Type:PWM; Operating Temperature Range:-40°C to +85°C; Driver Case Style:TSOT-23; Switching Frequency:1MHz; Efficiency:94%; Base Number:4240; Device Type:LED; LED Display Type:LED; No. of Pins:5; Package / Case:TSOT-23; Supply Voltage Max:5.5V; Supply Voltage Min:2.8V; Termination Type:SMD

The CAT4240 is a DC/DC step-up converter that delivers an accurate constant current ideal for driving LEDs. Operation at a fixed switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor. LEDs connected in series are driven with a regulated current set by the external resistor R1. The CAT4240 high-voltage output stage is perfect for driving mid-size and large panel displays containing up to ten white LEDs in series. LED dimming can be done by using a DC voltage a logic signal or a pulse width modulation (PWM) signal. The shutdown input pin allows the device to be placed in power-down mode with zero quiescent current. In addition to thermal protection and overload current limiting the device also enters a very low power operating mode during Open LED fault conditions. The device is housed in a low profile (1mm max height) 5-lead thin SOT23 package for space critical applications.