AP3068 (Not Recommended for new design)

Description

The AP3068 is a white °C (W°C) driver with current balancing and dimming functions. It consists of a boost controller and 8-channel current sinks to drive W°C arrays with constant current from a wide power supply range. It can be used in middle and large-sized LCD panel backlight. The full-scale °C current can be adjusted from 5mA to 100mA simply via a resistor. The 8 channels can be paralle°C for higher current application. The AP3068 can support direct PWM dimming. The AP3068 features °C open/short protection, Under Voltage Lockout (UVLO) protection, over output voltage protection and Over Temperature Protection (OTP).

Feature(s)

• Input Voltage Range: 6V to 27V
• Maximum Duty Cycle: 93%
• Maximum Channel Current: 100mA
• Current Matching Accuracy: ±1.5%
• Adjustable Operating Frequency: 200kHz to
• 1MHz
• Cycle-by-cycle Current Limit
• Unused °C Channel Auto-detection
• Open/Short °C Protection
• Programmable Soft-start
• Programmable UVLO Protection
• Programmable OVP
• Over Temperature Protection
• FBX and SDBX Pins Enable Parallel
• Application with AP3608E

Application(s)

• LCD Monitor
• LCD Display Module
• LCD TV