Weltrend | Products

Fast charge protocol controllers

WT6681F

WT6681F is a Sink Mode fast charge interface controller that integrates the circuits and control logics of USB Battery Charging Specification, Revision 1.2 (BC1.2) SDP, DCP and CDP, High Voltage Dedicated Charging Port (HVDCP) interface with Qualcomm^® Quick Charge ™ 2.0/ Quick Charge 3.0/ Quick Charge 3+, and Universal Fast Charge Specification (UFCS).

Features

- Supports USB BC1.2 SDP/CDP/DCP detection and advertisement
- Supports Qualcomm^® Quick Charge 2.0/3.0/3+ sink mode detection
- Supports OCP (Other Charging Port) detection
- Supports FC (Floating Charger) detection
- Supports UFCS protocol sink mode detection
- Slave mode I²C interface, up to 400 kHz
- VBUS voltage monitoring
- 10-bit ADC with comparator mode
- 3T 8052 core, MCS-51 instruction set compatible, Instruction execution time: Min. = 250ns @12 MHz
- 640 bytes of RAM (256 Bytes of standard 8052 internal Data RAM)
- 8K bytes of flash memory for program storage
- I2C command wakeup
- Internal RC Oscillator 12 MHz
- Operation voltage: 2.7V to 5.5V
- Sleep mode current consumption = 5µA (typ.)
- Operation temperature: -40°C to 85°C
Green Package: WL-CSP, 9-ball

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