General Description
The LD5805 is a 4-channel linear current controller which combines with a boost switching controller. It’s an ideal solution for driving high power LED backlights. The LD5805 can achieve high accuracy of constant current to 4 LED strings with 4 internal MOSFET. For each LED string, the current is adjustable to drive up to 250mA.

FEATUREs
● Input Voltage range: 6V to 36V
● Drives up to 4 strings in parallel, up to 250mA per
   string
● LED current balance rate is  2.7%
● Programmable switching frequency
● PWM Input for PDIM or ADIM dimming control
   Use PDIM mode: PWM Input frequency Range
   100Hz ~ 1kHz
   Use ADIM mode: PWM Input frequency Range 1kHz
   ~ 30kHz
● HV gate Voltage of 10V for driver
● Multi-chip parallel operation
● LED short and open protection
● LED pin short to ground protection
● Programmable over-voltage protection
● Thermal shutdown

APPLICATIONs
● Backlight for GPS, Portable DVD
● LED Backlight for LCD Monitor/ TV