SS20861

Overview

SS20861 is a highly integrated USB Type-C PD or Type-A dual-port fast charge protocol chip with a built-in high-performance processor and programmable 64KB Flash memory. The dual-port logic is independent, supporting an independent loop architecture, and the dual-channel power can be controlled independently. Integrated CC/CV control loops, bidirectional discharge circuit, and a variety of system protection functions. SS20861 adopts a highly integrated design with few external components, providing a highly integrated and low-cost complete solution for adapters, on-board chargers, etc.

Feature

• CPU
  • 32-bit core + FPU, single-cycle hardware multiplication and division instructions,  support DSP commands and MPU
  • Built-in 1KB instruction cache, support Flash acceleration unit to execute program with 0 wait
  • The maximum frequency: 128MHz，160DMIPS 

• Memory
  • Flash: 64KByte, support Supports hardware-encrypted storage, partition management, and data protection
  • SRAM：16KByte, Low-power mode data retention
• Operating conditions
  • Operating voltage range：3V~25V
  • Operating temperature range：-40℃～105℃
  • ESD：±4KV
• Dual Ports
  • Independent dual-port control logic
  • Support independent loop architecture and the dual-channel power can be controlled independently
  • Dynamic power allocation
  • Support dual ACDC power paralleling
• Interfaces
  • Built-in Type-C interface
  • Support the DRP dual-role protocol
  • Support Emarker
  • Support BC1.2 and HVDCP mode
• Fast charging protocol
  • Support PD2.0/PD3.1 SPR/PPS,  Maximum 100W（20V@5A） 
  • Support QC2.0/QC3.0, Support ClassA/ClassB-level voltage电压等级
  • Support UFCS Fusion Fast Charging Protocol
  • Support APPLE 2.4A
• Power Management
  • Wide input voltage range: 3~28V
  • Support OPTO opto-coupling direct-drive voltage regulation control
  • Support FB feedback voltage regulation control
  • Supports I2C voltage regulation control
  • Integrated CC/CV loops
  • Integrated VPWR/VBUS bidirectional discharge
  • Support minimum 5mΩ resistance sampling
  • Comply with LPS safety certification
• Working Mode
  • Normal Mode: <10mA
  • Sleep Mode: <500μA
• Protection
  • Output overvoltage protection
  • Output undervoltage protection
  • Output overcurrent protection
  • NTC over temperature protection
  • Chip over temperature protection
  • CC, DM, DP overvoltage protection
  • Output current limiting
• System control
  • Support NMOS high-side drive
  • Integrated VPWR/VBUS bidirectional discharge
  • Support OPTO/ FB/ I2C voltage regulation switching
  • Programmable, support vendor-defined authentication and customized functions
• Debug and Upgrade
  • Support SWD on-line debugging interface
  • Support USB charge interface program upgrade (optional)
• Package
  • QFN40 (5mm x 5mm)

Application

• AC adapter
• Car charger
• Sockets
• Battery packs of power tool
• Other PD fast-charging products

Document

Ordering Information