High current sink/source for direct led driver

The STP24DP05 is a monolithic, low-voltage, low current power bit shift register designed for LED panel displays. The device contains an 8 x 3-bit serial-IN, parallel-OUT shift register that feeds a 8 x 3-bit D-type storage register. In the output stage, twenty four regulated current sources were designed to provide mA constant current. The NCP is a High Voltage High Current Power MOSFET Driver providing two outputs for direct drive of 2 N−channel power MOSFETs arranged in a half−bridge (or any other high−side + low−side) configuration. It uses the bootstrap technique to insure a proper drive of the High−side power switch. The driver works with 2 independent inputs. 1 A Constant-Current LED Driver with PWM Dimming Description The CAT is a constant−current sink driving a string of high−brightness LEDs up to 1 A with very low dropout of 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.

typical application for current sink is LED driving and with a smaller ATLLI solution size, more LEDs can fit on a given PCB. TLV can also be used in place of the ATLLI in situations where the system needs more head room due to the V bandgap of the TLV The NCP is a High Voltage High Current Power MOSFET Driver providing two outputs for direct drive of 2 N−channel power MOSFETs arranged in a half−bridge (or any other high−side + low−side) configuration. It uses the bootstrap technique to insure a proper drive of the High−side power switch. The driver works with 2 independent inputs. The MAX also features an adaptive output-voltage control scheme that minimizes the power dissipation in the LED current-sink paths. The MAX consists of four identical linear current source channels to drive four strings of HB LEDs. The channel current is adjustable from 20mA to mA with an accuracy of ±3% using an external resistor.

Steve Winder, in Power Supplies for LED Driving (Second Edition), The subsidiary negative supply feeds the constant current sink that biases an. Semtech's substantial line of EcoBrite LED driver ICs is used prominently for LCD LED drivers and low-dropout current sinks for parallel-connected LEDs. Electronics Tutorial about Light Emitting Diodes or LEDs with LED Types, can both source and sink useful amounts of current therefore can be used to.