AP4373A (Obsolete)

Description

The AP4373A is an AC/DC secondary-side controller, which incorporates a decoder to translate Qualcomm QC2.0 protocol and transfer control signal to the primary side through opto-coupler.

The AP4373A can be used in Diodes Incorporated’s primary-side controlled AC/DC systems to achieve fast voltage transition, low noload power consumption and fast dynamic load response. When paired with Diodes Incorporated’s primary-side controller AP3792, the AP4373A uses one opto-coupler to transfer all necessary information to the AP3792 including output voltage/current change requests, output dynamic response and abnormal condition protection signal.

The AP4373A integrates a safe-discharge circuitry to quickly and reliably discharge output capacitors when the output terminal is plugged out.

This IC is available in SOT25 package.

Feature(s)

• Support Qualcomm QC2.0 Protocol Combined with the AP3792 (QC2.0: 5V/9V)
• Low Standby Power
• Fast Dynamic Response
• Built in Opto Coupler LED Driver
• Output Capacitor Safe-Discharge Circuitry
• Fewest External Component Count
• Output Over Voltage Protection (OVP)
• D+/D- Over Voltage Protection
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)
• For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions/

Application(s)

• AC/DC Adapters
• Battery Chargers