OCP8123
Overview
- Wide Supply Voltage Range: 8.0V ~ 35V Light Emitting Diode (LED) driver optimized for LCD
- For Boost, SEPIC, LED Driver Applications monitor and LCD TV backlighting application. It provides
- Number of LEDs in series limited by external a high performance LED backlight solution with MOSFETs rating minimized BOM count. The OCP8123 contains a PWM
- Current Mode PWM Controller With Good boost driver which uses current mode control and fixed frequency operation to regulate the LED current. The LED current is sensed through an external current sense M resistor. The voltage across the sensing resistor is compared with reference level of 300mv the error is amplified to control the pulse width of the power switch O thus to regulate the current flowing the LED. The OCP8123 offers external low frequency PWM .C (LPWM) dimming method for a wide range of dimming control. The OCP8123 offers comprehensive protection such as power MOSFET over current protection (OCP), P output over voltage protection (OVP), IC power supply -CHI under voltage lockout (UVLO), and LED open protection. Dynamic Response
- External PWM Dimming Mode
- LED- to Ground Short-circuit Protection
- Inductor Short-circuit Protection
- Boost Diode Open Protection
- Boost Diode Short-circuit Protection
- Over Voltage Protection(Open-LED Protection)
