EL7513 Datasheet (Renesas) - White LED Step-Up Regulator

EL7513, White LED Step-Up Regulator

CONDITIONS MIN TYP MAX UNIT VIN Input Voltage IQ1 Total Input Current at Shut-down IQ1 Quiescent Supply Current at VO Pin ICOMP COMP Pin Pull-up Current VCOMP COMP Voltage Swing ICNTL CNTL Shut-down Current VCNTL1 Chip Enable Voltage VCNTL2 Chip Disable Voltage IOUT_ACCURACY VCNTL =

EL7513 White LED Step-Up Regulator NORTECROEMCOMMENMDEENDIDSERLD9E7PF6LO3A4RCNEEMWENDTEPSAIGRNTS DATASHEET FN7112 Rev 5.00 December 22, 2008 The EL7513 is a constant current boost regulator specially designed for driving white LEDs.

It can drive 4 LEDs in series or up to 12 LEDs in parallel/series configuration and achieves efficiency up to 91%.

The brightness of the LEDs is adjusted through a voltage level on the CNTL pin.

When the level falls below 0.1V, the chip goes into shut-down mode an

EL7513 Features

* 2.6V to 13.2V input voltage

* 18V maximum output voltage

* Drives up to 12 LEDs

* 1MHz switching frequency

* Up to 91% efficiency

* 1µA maximum shut-down current

* Dimming control

* 8 Ld TSOT and 8 Ld MSOP packages

* Pb-free a