<title>Power Bank New National Standard Compliance: YXC Yangxing Technology RTC Achieves Cost-Effectiveness and Rapid Compliance</title>

On March 31, 2026, the mandatory national standard "Safety Technical Specification for Mobile Power Supplies" (GB 47372—2026) was officially published. It will be mandatorily implemented starting April 1, 2027, with a transition period of only 12 months, requiring manufacturers to quickly complete product design revisions.

Three key clauses in the new national standard rely on precise, non-power-fail time references to achieve data traceability, intelligent control, and lifespan management. This article interprets these requirements and highlights YXC Yangxing Technology's Real-Time Clock (RTC) chip designed specifically for consumer electronics—the YSN8563 series—to help manufacturers meet the new national standard requirements at low cost and with minimal modifications.

I. New National Standard Compliance for Power Banks: These Three Requirements Must Be Achieved Through Precise Timing

To meet the three RTC-related mandatory requirements of the new national standard, one must either use an external independent low-power RTC chip or utilize the MCU's internal RTC combined with a backup power source. Due to the diverse selection of main controllers for power banks, generic internal RTCs struggle to balance high precision and low power consumption. Therefore, relying on an independent dedicated RTC chip is necessary to fundamentally resolve the dual pain points of accuracy and power consumption. Integrating YXC Yangxing Technology's YSN8563 series RTC is the simplest, most reliable, and most cost-effective solution for achieving compliance with the new national standard for power banks.

II. YSN8563 Series: Four Core Performance Features Fully Adapted to the New National Standard

1. Precise Time Recording, Supporting Event Traceability

Complete Time Output: Provides year, month, day, hour, minute, and second output, communicating with the main controller MCU via the I2C interface.

Data Consistency Protection: Automatically freezes internal counting when reading time registers, ensuring consistent and conflict-free time data.

2. Ultra-Low Power Operation, Ensuring Overall Battery Life

Ultra-Low Power Consumption: The YSN8563 operates stably under the power bank's main cell supply (VDD), providing a precise time reference. Its typical operating current is only 0.25μA (@3.0V, 25°C), having almost no impact on overall battery life.

Compared to MCU Built-in Timing: Does not require continuous operation of the main controller, resulting in extremely low power consumption.

3. Minimal Peripheral Design, Reducing Compliance Costs

Cost Advantage: Requires only one 32.768kHz crystal oscillator (recommended YST310S) and a few resistors and capacitors for peripherals, adding minimal BOM cost.

Mainstream Packaging: SOP-8 (approx. 4.9mm×6.0mm) is the most mature packaging in the power bank industry, offering reliable soldering and high production yield; MSOP-8 (approx. 3.0mm×4.9mm) has a smaller size, suitable for extreme space constraints.

4. Wide Temperature and Voltage Adaptation, Stable and Reliable Operation

Operating Temperature: -40°C to +85°C, covering severe cold, high heat, and other usage scenarios.

Operating Voltage: 1.0V to 5.5V, with a built-in voltage detector, making it more suitable for the wide-voltage and battery-powered scenarios of power banks.

Timing Accuracy: Paired with the YST310S crystal oscillator, the daily error is ≤±2 seconds across the entire temperature range, fully meeting the needs for recording abnormal events (minute-level) and accumulating safety lifespan.

III. Scenario-Based Applications: From Meeting Compliance Requirements to Product Value Upgrade

Based on the YSN8563, power banks can create differentiated selling points on top of compliance:

Visualized Battery Health: Records each abnormal event such as over-temperature and over-voltage, allowing users to trace history and enhancing brand credibility.

Intelligent Charging Strategy: Utilizes RTC timed interrupts to automatically switch to trickle charging mode at night, extending battery life.

Safety Expiration Reminder: Proactively prompts replacement when cumulative usage time approaches the safety lifespan, reducing safety hazards.

IV. Platform-Based Selection: RTC Solution Matrix Covering Mainstream to High-End

As the mainstream cost-effective choice, the YSN8563 can meet the new national standard requirements for the vast majority of power banks.

For high-end models, YXC also provides the higher-integration YSN8130E, achieving full-scenario coverage from mainstream to high-end, helping manufacturers select flexibly.

Selection Recommendations:

Mainstream Models → YSN8563: Optimal cost, mature packaging, lower power consumption, fully meets the new national standard.

High-End Models → YSN8130E: Built-in crystal oscillator + automatic dual-power switching, smaller PCB footprint, particularly suitable for compact devices with extreme requirements for space and design simplicity.

GB 47372—2026 New National Standard for Mobile Power Supplies is both a challenge and an opportunity for product upgrades. With a transition period of only 12 months, completing solution selection and design revisions early is essential to seize market opportunities!