UFCS plus iTAP: SW6258 SoC and HYM4616 NFC Chip Target GB 47372-2026 Power-Bank Compliance
2026-10-13 · Compiled by Best IT Parts from public industry reporting
China's mandatory GB 47372-2026 power-bank safety standard moves the category into a compliance era defined by enforced safety and data traceability. Beyond cell and electrical safety it adds seven mandatory intelligent-management clauses: real-time monitoring of cell voltage, operating temperature and cycle life, retained records of abnormal operating conditions, and full lifecycle data that must be readable and traceable. That places new hard requirements on in-device fast-charge communication and safety-data exchange.
The Guangdong Fast Charging Industry Association (FCA), working with Huawei, is pairing the UFCS fusion fast-charging protocol with iTAP tap-to-connect interaction. UFCS addresses cross-brand fast-charge compatibility, while iTAP provides passive, offline secure data reads. A combined solution now links the SW6258 power-bank SoC with the HYM4616 NFC security chip, so a single hardware set covers both functions without a large board redesign.
The SW6258 is a high-integration bidirectional buck-boost power-bank SoC that serves as the power-management and data-collection hub. It natively supports UFCS, PD3.2 and BC1.2, with bidirectional charge and discharge up to 30W. An integrated MCU with multiple GPIOs and ADCs runs full cell charge/discharge cycle management, negotiates charging power, and collects cell temperature, voltage, cycle count and fault alarms, then passes that data to the security chip for encrypted storage.
The HYM4616 is an NFC security chip that has passed iTAP evaluation and is listed in the ITMA compliance directory. It combines SM1/SM4 encryption, tiered access control and a tamper-resistant EEPROM, and runs in a passive zero-power mode that draws nothing from the power bank's main supply. It stores device ID, factory records, cell health and historical anomaly logs, all readable from a phone offline via NFC field harvesting even when the power bank is depleted or faulted.
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Technical details are reproduced as reported. Verify specifications against the original source before design or procurement decisions.