remote control Part ID help please

[zen]

Hi all

Part required is a charging chip from a small boat remote control .

Anyone familiar with chip or manufacturer logo ?

[redwire]

Re: remote control Part ID help please

Looks like a TC or TP4056 lithium battery charge controller - For that IC pin 3 is GND, so why does this board have some tiny part on pin 3?

[R_J]

Re: remote control Part ID help please

It is a ME4056 by Microne
Pin 2 is ground, pin3 is Program, the part off pin 3 is a resistor.

[redwire]

Re: remote control Part ID help please

That IC looks much better, matches OP's circuit and logo.
The "4056" is widely copied in china but strange some have different pinouts. Note these have a thermal pad and need some extra heat to desolder.

[zen]

Re: remote control Part ID help please

Cheers guys & spot on RJ , it is a Microne manufactured chip .

Pin configuration varies from the TP version i initially tested .

[zen]

Re: remote control Part ID help please

Trying to repair 2 of these remotes , that have had a higher supply used .

Charging chips mentioned faulty on both .

One of them is now destined for the scrapyard in the sky , as main micro controller has an internal S/C .

Type STM32F030C8T6 , which also has an internal 64K programmable flash .

[stj]

Re: remote control Part ID help please

try to read the flash with an ST-Link or a 5v serial2usb adapter

[zen]

Re: remote control Part ID help please

Cheers , but doubt it would be viable for me to spend more time on the one with micro failed .

Will focus on the other as he only really needs one to work.

[zen]

Re: remote control Part ID help please

Time to abort mission .

Customer must had supplied such high voltage input , that seems all the chips on board have faulted .

Not viable to continue on such a cheap device .