
USB current and voltage tester chip solution
The main control chip of the USB tester supports various fast charging protocol detection, current and voltage detection, as well as fast charging deception function. It can be used to test the capacity of the power bank, the fast charging protocol supported by the charging head, the resistance of the charging cable, and other functions. It can also be made into a mobile adjustable power supply using the lure function of a fast charging power bank and a tester.
technical parameter
Technical parameter
The A chip is suitable for operating voltages of 2.0-5.5V and operating currents within 1mA;
The B chip supports multiple display interfaces such as digital tubes and LCDs;
The C chip is equipped with an internal reference voltage, and after factory calibration, the error range is within 1%;
The D chip is equipped with a 12 bit ADC converter, with more than 10 conversion channels;
The e-chip is equipped with multiple detection and display functions for this application, including temperature, battery voltage, battery level, and driving speed.
The F chip can also set multiple functions for this application, such as timing/reservation output function, working time accumulation function, energy output accumulation function, etc;
Measurement and display range parameters: input voltage 3-30V, output current 0-5A, output power 0-150W, output resistance 0.5-3K Ω.