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The RT7885V is a USB Power Delivery (USB PD) controller adopting Buck-Boost PWM control scheme and highly integrating functions specially for USB power bank applications, with that this controller is designed to operate in peak current mode with programmable current limit and switching frequency. The RT7885V embeds an ARM CortexTM-M0 MCU so as to facilitate various functions of communication protocol, protections and customized requirements. Moreover, this RT7885V has built-in charge pumps for driving low-cost NMOS to control the power path. Therefore this IC provides the best USB PD solution for a power bank application with the lowest count of external components.
Communication Protocols► Support Type-C and USB Power Delivery (PD) Communication► Support Dual-Role Power (DRP) Application► Support Proprietary Protocols via DP and DM Interfaces
Charging Operation for 2S to 4S Battery► CC and CV Charge, End of Charge, Re-Charge, and Charging Timeout Protection► Cell Balance Control
Bi-directional Buck-or-Boost Operation :► Peak-Current Mode PWM Operation► Programmable PWM Switching Frequency► Programmable Constant Voltage and Constant Current Settings for Charger/Provider Mode Output► Pulse-Skipping Mode (PSM) for Light-Load Efficiency► Programmable Cable Voltage Drop Compensation
2 Charge Pump Gate Drivers for N-MOSFETs
Hardware and Firmware-Based Protections :► Adjustable Converter Input Current-Limit► Programmable Over-Voltage Protections (OVP) and Under-Voltage Protections (UVP)► Adjustable External OTP
Master/Slave I2C Interface, LED Drivers, GPIOs
Built-in Bleeders for Quick VBUS Discharge
Online Firmware Update via CC1/2 or Slave I2C Interfaces
WQFN-60L 7x7 Package
USB PD DRP PD3.0/PPS Certification Passed (TID 2319)
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