WHITE LED STEP-UP CONVERTER AP3032
1、芯片描述:
The AP3032 is an inductor-based DC/DC boost converter designed to drive up to 4 rows of LEDs with 7 series for each in parallel for backlight. A constant frequency 1MHz PWM control scheme is employed in this IC, which means tiny external components can be used. Specifically, 1mm tall 6.8μH inductor and 1µF aluminum output capacitor for the typical application is sufficient. The over output voltage protection is equipped in AP3032, which protects the IC under open load condition. The AP3032 includes UVLO, soft-start, stand-by mode, current limiting and OTSD to protect the circuit under over load condition The AP3032 is available in SOT-23-6 package.(点击即可咨询芯片详细信息)
2、芯片特性:
• Efficiency Up to 81%(VIN=5V, IOUT=80mA) • Drives up to 4 Rows of WLEDs with 7 Series for Each in Parallel (VIN=5V) • Fast 1 MHz Switching Frequency • Wide Input Voltage Range: 2.7V to 9V • Low Feedback Voltage: 200mV • Output Over Voltage Protection • Cycle-by-cycle Current Limit: 1.4A • Built in Soft-start • Built in Standby-mode to Achieve High • Frequency PWM Dimming • Built in Thermal Shutdown Function • Under Voltage Lockout
3、芯片应用场景:
• 7’ to 10’ LCD Panels
• Digital Photo Frame
• GPS Receiver
4、应用框图:
5、封装图(脚位)
6、订购信息: