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Universal mobile phone charging road map

Source: InternetPublisher:走马观花 Keywords: mobile phone charger Updated: 2020/04/24

Universal charging circuit diagram for mobile phones

. The front stage of the circuit is an ordinary RCC flyback circuit, and the rear stage is automatic polarity control.

CT3582 is a chip suitable for universal charging. CT3582 uses a dual-row dip package with a constant current output of 200mA, a charging
termination voltage of 4.25V, and a termination voltage fine-tuning device
1 BTN battery negative pole
2 L3 indicator pin
3 L2 indicator pin
4 L1 indicator pin
5 SEL function selection ( Connect to VDD for 3-light and 2-lamp modes, connect to GND for colorful mode)
6 GND
7 BTP battery positive pole
8 VCC




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