I want to know what IC is used on this MH-KC24 USB power module I received.
This module, like the MH-CD42 module I looked at recently, has a single IC with unhelpful markings. Since the IC on that board appears to be from Injoinic Technology, I thought the IC on this module might share the same origin.
I reviewed the product offerings on their English language site and thought the ICs for car chargers looked the most promising. Based on the summary specifications, the IP6505 fills the bill. This IP6505-based module certainly carries the same supporting components, and the IC shares the same footprint.
The IC combines an efficient synchronous buck converter and logic for negotiating power delivery using a variety of USB charging protocols. My primary interest is in Apple 2.4A/12W charging, but it also supports Qualcomm’s QC2 & QC3 protocols, which is popular among android smartphones using Qualcomm’s SoCs.
I see that their IP6518 IC, which supports 45W USB PD charging is available on inexpensive modules, too.
The MH-KC24 module is interesting because its buck converter combines voltage regulation with USB charging protocol negotiation in a single IC. Integrating these functions shows how modern power electronics can reduce component count while still supporting different charging requirements.