Description

QC5783 PSR Power management IC 5V2.1A 12V1A Mobile phone charger adapter IC PWM power converter

surface mount: The surface mount is made of high quality plastic, it has been optimized to resist external and effectively protect the smart phone.

QC5783 is a high efficiency, high integration, primary side control PWM power converter. It is mainly used in low power AC/DC chargers and adapters. QC5783 tong

In the past, the optical coupler and the secondary control circuit simplify the chargers/adapters and other traditional constant-current/constant-voltage design, and achieve high precision voltage and current regulation.

QC5783’s multi-working mode enables the chip to achieve low static power consumption, low audio noise and high efficiency. The built-in frequency jitter can reduce the EMI of the chip

And EMI filtering cost.

QC5783 also has a variety of protection functions: cycle peak current detection, undervoltage protection, overvoltage protection,VDD clamp, overload protection and so on.

 

The main features

Built-in high voltage power transistor

◆ +/-5% constant voltage constant current adjustment

High precision current regulation within full voltage range

◆ Remove photocoupler and secondary control circuit

Built-in transformer inductance compensation

Adjustable output cable compensation

◆ Built-in adaptive multi-mode to improve efficiency

Mixer PWM/PFM control

Low starting current

◆ Built-in soft start

◆ Built-in edge blanking

◆ Periodic current limit

◆ Under voltage protection with hysteresis

◆ Built-in short-circuit protection and output overvoltage protection

 

Typical applications

◆ Mobile phone/cordless phone charger

◆ Digital camera charger

◆ Low-power power adapter

◆ LED drive power supply