◼ General Description
The OCP8122A is dual channel LED driver
controller IC which loads the boost DC-DC controller
and the constant current control of LED driver designed
to build LED backlight for 3D LCD display mode
large-size LCD TV application.
The OCP8122A provides two independently
controlled LED drivers to achieve optimum efficiency.
The drive outputs are phase-shifted by 180 degree to
minimize current ripple in high power applications. The
OCP8122A provides independent PWM dimming
function for each channel and common analog dimming
control for both channels. It provides system design
flexibility for LCD-TV with local dimming or 3D display
mode.
The OCP8122A can be configured for Master-Slave
operation to support multi-channel applications.
Synchronization is achieved by a proprietary single-wire
interface which minimizes system components.
The OCP8122A provides the over-voltage
protection (OVP), Power MOSFET over-current
protection (OCP), Output to ground short-circuit
protection, output over load protection, Soft-Start (SS),
under-voltage lock-out (UVLO), limited current condition
(LCC) protection, thermal shutdown protection (TSD). A
soft-start feature is provided to minimize in-rush current
during start-up.
The OCP8122A is available in SSOP-24L and
SOP-24L package, and it is RoHS compliant and 100%
lead Pb-free. Operating temperature range of the
OCP8122A is from -40°C to 85°C.

◼ Features
⚫ Wide Supply Voltage Range: 8.0V ~ 25V
⚫ Dual Channel DC-DC Controller
⚫ Drives One String of High Power LEDs per
Channel
⚫ Number of LEDs in series limited by external
MOSFETs rating
⚫ 180 degree phase shift drive output between the
two channel
⚫ Independent PWM dimming control for each
channel
⚫ Common Analog Dimming for two channel
⚫ Constant Operation Frequency
⚫ Operation Frequency Synchronization
⚫ External Power MOSFET Over-Current
Protection
⚫ External enable control
⚫ Integrated high frequency oscillator
⚫ Over-voltage protection
⚫ Output to Return Short-circuit Protection
⚫ Output to Ground Short-circuit Protection
⚫ Output Over-Load Protection
⚫ Limited Current Condition Protection
⚫ Low in-rush current soft-start function
⚫ Under-voltage lock-out
⚫ Thermal shutdown
⚫ Fault Status Output
⚫ Low Standby current
⚫ TA= -40 ~ 85 ℃
⚫ Available in SSOP-24L and SOP-24L Package
◼ Applications
⚫ LCD White LED Backlighting
⚫ LCD TVs
⚫ Automotive and Infotainment Displays
⚫ 3D Mode Display LCD Panel