Features
• USB-PD
- Supports two USB-PD ports
- Supports latest USB-PD 3.0 version 2.0 including programmable power supply (PPS) mode
- Extended data messaging (EDM)
• Type-C
- Configurable resistors RP and RD
- VBUS NFET gate driver
- Integrated 100-mW VCONN power supply and control
• 2x buck-boost controller
- 150 kHz to 600 kHz switching frequency
- 5.5 V to 24 V input, 40 V tolerant
- 3.3 V to 21.5 V output
- 20-mV voltage and 50-mA current steps for PPS
- Supports selectable pulse skipping mode (PSM) and forced continuous conduction mode (FCCM)
- Supports soft start
- Programmable spread spectrum frequency modulation for low EMI
- Programmable phase shift across two ports to further reduce the EMI
• 2x legacy/proprietary charging blocks
- Supports QC4+, QC4.0, Samsung AFC, Apple 2.4A, and BC v1.2 charging protocols
• Integrated voltage (VBUS) regulation and current sense amplifier (CSA)
- Integrated shunt regulator function for VBUS control
- Constant current or constant voltage mode
- Supports current sensing for constant current control
• System-level fault protection
- On-chip VBUS, overvoltage protection (OVP), overcurrent protection (OCP), undervoltage protection (UVP)
- VBUS to CC short protection
- Under-voltage lockout (UVLO)
- Supports over-temperature protection through integrated ADC circuit and internal temperature sensor
- Supports connector and board temperature measurement using external thermistors
• 32-bit MCU subsystem
- 48-MHz Arm® Cortex®-M0 CPU
- 128-KB flash
- 16-KB SRAM
- 32-KB ROM
• Peripherals and GPIOs
- 19 GPIOs
- Two over-voltage GPIOs
- 3x 8-bit ADC
- 4x 16-bit timer/counter/PWMs (TCPWM)
• Communication interfaces
- 4x SCBs (I2
C/SPI/UART)
• Clocks and oscillators
- Integrated oscillator eliminating the need for an external clock
• Power supply
- 4 V to 24 V input (40-V tolerant)
- 3.3 V to 21.5 V output
- Integrated LDO capable of 5 V @ 150 mA
• Packages
- 68-pin QFN (8 mm  8 mm) package with –40 °C to +105 °C extended industrial temperature range Logic block diagram