The wireless charging management chip CH246 integrates wireless charging transceiver module and small signal decoding circuit in a single chip, which can easily realize various wireless charging solutions such as Qi. CH246 supports PD2.0, BC1.2 multiple protocols fast charging input, 5W, 7.5W, 10W, 15W wireless charging output, integrated FSK/ASK decoding, overvoltage, overcurrent, overtemperature detection protection, high integration, few external devices, can be widely used in various wireless charging base brackets and other designs. CH246 uses OTP process, which is suitable for charging solutions with clear requirements and cost optimization. The Flash process PD and wireless charging dedicated MCU CH641 is more functional and flexible, and can quickly build differentiated wireless charging products.
Solution Features
Support 5V-12V input voltage
Support 5W, 7.5W, 10W, 15W wireless charging output power
Input supports PD2.0, BC1.2 and other fast charging protocols
Support half-bridge and full-bridge output modes
Internally integrated hardware overvoltage, undervoltage, and overtemperature protection
Internally integrated current detection differential op amp, hardware overcurrent protection
Internally integrated FSK/ASK demodulation module, external devices only need a small amount of resistors and capacitors
Support static and dynamic FOD detection
Support NPO, CBB, X7R capacitors, efficiency can reach 85% when using NPO capacitors
Independent 2-way LED status indicator
Typical static power consumption 25mW
