AP3032KTR-G1

AP3032KTR-G1 is a white LED step-up converter. It 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 aluminium 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. Applications include 7’ to 10’ LCD panels, digital photo frame, GPS receiver.

• Efficiency up to 81% (VIN=5V, IOUT=80mA)
• Fast 1MHz switching frequency
• Wide input voltage range: 2.7V to 9V
• Output over voltage protection, under voltage lockout
• Cycle-by-cycle current limit: 1.4A
• Built in soft-start, built in thermal shutdown function
• Built in standby-mode to achieve high, frequency PWM dimming
• Maximum duty cycle is 93% typical
• SOT-23-6 package
• Temperature range from -40°C to +85°C

Výstrahy

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