I. Product Advantages

The RPB0501Q32 is a high-precision B-type/A+6 type leakage current protection chip based on advanced fluxgate technology. It is specifically designed for detecting complex residual currents containing DC and high-frequency AC, and is suitable for high-standard electrical safety scenarios such as new energy and power distribution. The chip integrates a complete fluxgate control core, requiring very few external components, significantly reducing the overall BOM cost. Its standardized hardware architecture shortens the product safety certification cycle. It supports both electronic and electromagnetic RCD leakage current protection schemes, balancing development costs and reliability under extreme operating conditions. It is the core control chip for next-generation leakage current circuit breakers and charging pile leakage protection.

II. Core Functional Advantages

1. High-Precision Detection of Multiple Types of Leakage Current

Supports AC, DC, and high-frequency nonlinear residual current sampling. The typical operating current for AC 50Hz is 23.2mA, with a detection accuracy of 0.1mA. It can identify DC leakage current bias generated by frequency converters and charging piles, covering all B-type leakage current detection needs.

2. Ultra-fast Tripping Safety Protection

Trip delay as low as 15ms under 5000mA leakage current conditions, and approximately 150ms for conventional 30mA leakage current tripping response, exceeding industry regulatory standards; TRIP driver pin level output is precise, directly driving relays and SCR tripping mechanisms.

3. Long-Life Industrial-Grade Stable Design

Utilizing high-standard silicon technology and industrial electrical architecture, the design life exceeds 20 years, with strong ESD immunity and excellent FIT reliability; built-in instantaneous surge current suppression resists power grid impact interference.

4. Dual Architecture Compatibility, Cost Reduction and Efficiency Improvement

Simultaneously supports both electronic RCD and passive electromagnetic RCD application solutions; the electronic version boasts a compact board size and low hardware cost, while the electromagnetic version offers maximum reliability under voltage dips and strong electromagnetic interference environments, adapting to the stringent EMC requirements of various industries.

5. Simplified peripherals, shortened certification cycle

The streamlined circuitry requires fewer external components, resulting in lower system costs; the standardized, highly reliable circuit structure complies with multiple domestic and international electrical safety standards, significantly shortening the product development, testing, and certification cycle.

III. Applicable Application Scenarios

1. New Energy Vehicle Charging Equipment: Home/commercial AC charging piles, Mode 2 IC-CPD vehicle control boxes, detecting potential DC leakage current in charging circuits.

2. Intelligent Low-Voltage Power Distribution Systems: New generation B-type RCBO and RCCB leakage circuit breakers, solving electrical fires caused by residual DC leakage current in industrial frequency converters.

3. Critical Industrial Infrastructure: Electromagnetic leakage current protection in high electromagnetic interference scenarios such as heavy industrial power distribution and railway power supply protection.

4. Overseas Electrical Equipment: Compliant with domestic and international safety standards such as GB/T 18487, GB/T 40820, IEC 62955, and IEC 62752, suitable for export electrical products.

IV. Industrial-Grade Environmental Characteristics

1. Power Supply Specifications: Operating voltage DC 4.85~5.15V (typical 5V), recommended to be paired with a low-ripple LDO to improve noise immunity; standby current ≤10mA without zero-sequence current transformer, ≤26mA with current transformer.

2. Stable operation over a wide temperature range: Operating temperature range -40℃ to +105℃, leakage current detection accuracy and tripping speed show no significant attenuation under high and low temperature environments.

3. Electrical drive parameters: Trip pin high level 4.2~5V, maximum drive 5mA, clear high and low level distinction, precise and stable drive of actuators.

4. Frequency adaptation capability: Compatible with 50Hz, 400Hz, and 1kHz multi-frequency AC circuits, non-linear leakage current signal identification without distortion.