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High efficiency and high power density Type-C PD power supply scheme based on AOS AOZ7675QI and AOZ7658QI

게시 된 시간 : 2020-04-27 AOZ7675QI, AOZ7658QI
This article will tell you about high efficiency and high power density Type-C PD power supply solution based on AOS AOZ7675QI and AOZ7658QI, so you just need to read it carefully.

솔루션 소개

AOZ7675QI and AOZ7658QI are integrated control ICs that can achieve high efficiency and high power density. They are used in miniaturized Adapter Type-C PD products. The traditional flyback operation is at fixed frequency 65kHz and QR mode, while AOS AOZ7675QI and AOZ7658QI are It uses COT control technology with a frequency up to 150kHz. The COT control mode and the secondary side master control operation make the design simple and highly stable. The IC integrates a power crystal and uses bottom source packaging technology, which can effectively improve the temperature and EMI, and then easily achieve miniaturization design.

Scene application diagram


Display board photos



Solution block diagram

Core technical advantages

1. Highly integrated, integrated IC and Mosfet complete solution

2. Simple design can achieve high power density and reduce the number of external parts

3. The main control IC is the secondary side, and the SR has no common problems

4. The operating frequency is up to 150kHz

5. QFN bottom source packaging technology can effectively improve temperature and EMI problems

Scheme specifications

 Input voltage: 90Vac ~ 264Vac

 Output voltage / current: 5V / 3A, 9V / 3A, 15V / 3A, 20V / 3.25A

 Standby power consumption: <75mW

 PCB size: 53.5 * 38 * 21.7mm

주요 구성 요소

No. 부품 번호 회사
1 AOZ6275QI ALPHA