XPD977D30A

XPD977 is a multifunctional USB three-port controller integrating USB Type-C, USB Power Delivery (PD) 3.0/2.0 with PPS, QC3.0/2.0 CLASS B fast charging protocol, Huawei FCP/SCP fast charging protocol, Samsung AFC fast charging protocol, VOOC 2.0 fast charging protocol, BC1.2 DCP, and Apple 2.4A charging specification. It provides a complete Type-C and Type-A three-port charging solution for AC-DC adapters, power banks, car chargers, and other devices. XPD977 uniquely integrates the proprietary XPD-LINK interconnect communication technology. Through the XPD-LINK interconnect function, XPD977 can be applied flexibly and easily in multi-port charging solutions with multiple Type-C and Type-A ports. The built-in Type-C protocol in XPD977 supports automatic system wake-up upon Type-C device insertion, intelligent detection of plug orientation (front/reverse insertion), and connection establishment. The integrated Type-C PD 3.0 protocol supports Biphase Mark Coding (BMC), with a hardware-integrated physical layer protocol and protocol engine — no software involvement required for encoding/decoding. When either a Type-C or Type-A port has a device connected, each port can independently deliver fast charging. When both Type-C and Type-A ports have devices connected, XPD977 reduces the output voltage to 5V to power the devices; the Type-C port PD broadcasts only 5V/3A while retaining BC1.2 and Apple 2.4A, and the Type-A port retains Apple 2.4A only. Notably, when a Type-A port remains connected to an Apple charging cable but no Apple device is plugged in, the Type-C port still supports fast charging. In charger applications, charging cables are often permanently attached to the charger. XPD977 perfectly resolves the fast charging challenge when both Type-A and Type-C ports are connected to charging cables. In addition, the Type-A port full-charge cutoff current threshold is as low as 10mA, supporting low-current charging for smart wearable devices. XPD977 implements dynamic voltage regulation through a single Sink/Source current source connected to the feedback pin of an AC-DC or DC-DC converter. Both startup and voltage transition processes feature soft-start/soft-transition functionality for smooth voltage transitions. XPD977 integrates an internal CC loop control, which effectively manages total current under shared power supply to relieve pressure on the front-end power source. XPD977 supports secondary programming for in-field firmware upgrades. XPD977 incorporates multiple built-in protection mechanisms to ensure device safety, including dynamic overvoltage/undervoltage/overcurrent protection (protection thresholds are proportionally adjusted based on the device's requested operating voltage/current) and startup monitoring (port voltage is monitored for safe status before VBUS output is enabled). XPD977 integrates a 10mΩ VBUS path power switch and an internal discharge path, reducing external component count, enabling fast output shutdown and recovery to a safe state upon fault detection. XPD977 is available in a QFN5×5-32 package. The peripheral circuit in application is highly compact, enabling easy compliance with USB PD certification testing.

Applications

• AC-DC adapters
• Power strips with USB ports
• Multi-port USB charging devices

Key features

• USB PD3.0 certified (TID: 5594)
• Supports XPD-LINK multi-chip interconnect communication technology
• Supports USB Type-C protocol
• Supports USB Power Delivery (PD) 3.0 and PPS protocol
• Configurable PDO: 5V, 9V, 12V, 15V, 20V
• Output power up to 65W
• Configurable APDO: 5V Prog, 9V Prog, 15V Prog, 20V Prog
• Supports Quick Charge 2.0/3.0/3.0+ protocol
• Supports Xiaomi CHARGE TURBO 27W protocol
• Supports Huawei FCP/SCP/HVSCP protocol
• Supports Huawei 10V high-voltage SCP protocol
• Supports Samsung AFC protocol
• Supports VOOC 2.0 protocol
• Supports USB BC1.2 DCP
• Supports Apple 2.4A charging specification
• Integrated CC/CV control loop
• Integrated 10mΩ VBUS path power switch
• Integrated 10mΩ current sense resistor
• Built-in dual discharge path for VPWR and VBUS
• Supports cable loss compensation
• Supports dual-port operation with USB Type-A and Type-C
• Fast charging available in standalone mode; reverts to 5V when both ports active simultaneously
• When Type-A port is connected to an Apple cable without an Apple device, Type-C port retains fast charging
• Type-A port charge-complete cutoff current threshold: 10mA, low-current charging
• Supports online firmware upgrade
• Type-A port uses source-side control to prevent leakage caused by short circuit
• Overvoltage/undervoltage protection
• Overcurrent protection
• Over-temperature protection
• CC1/CC2/DP1/DM1/DP2/DM2 overvoltage protection
• ESD: ±4KV
• Package: QFN5X5-32