JY03B Highly Integrated Sensorless BLDC Motor Control IC
Discover the JY03B Sensorless BLDC Motor Control IC by JUYI Tech. A 9-36V highly integrated, no-programming, pure hardware controller chip in an SSOP-28 package. Featuring integrated MOSFET drivers and full safety protections for home appliances, automotive pumps, and industrial fans.
Product Overview
The JY03B is a high-performance, highly integrated sensorless Brushless DC (BLDC) motor control IC developed by JUYI Tech. Designed to drastically simplify motor drive system layout and minimize external components, the JY03B consolidates a motor control core, MOSFET gate drivers, a 12V regulator, and a 5V LDO regulator into a single, space-saving SSOP-28 chip (excluding the power stage).
By adopting a pure hardware-based architecture, the JY03B requires zero software programming or firmware development. This allows design engineers to achieve rapid deployment, shorten R&D cycles, and significantly reduce overall manufacturing and BOM costs.
The IC incorporates comprehensive closed-loop circuitry, including advanced phase detection, adaptive startup, and multi-level protection arrays, ensuring exceptionally low noise, high driving efficiency, and ultra-stable motor operation across diverse loads.
Key Technical Specifications
| Parameter |
Specification Value |
Notes / Conditions |
| Operating Voltage Range (VCC) |
9.0V – 36V DC |
Referenced to GND |
| Quiescent Current (IDD) |
7.0 mA (Min) – 17 mA (Max) |
All outputs unloaded |
| Package Type |
SSOP-28 |
Compact, space-constrained layouts |
| PWM Output Frequency |
16 kHz |
Optimized for efficiency & low noise |
| Drive Method & Speed Regulation |
VSPWM / Linear Speed Control |
Analog voltage input range: 0V - 5V |
| Gate Drive Current (High-Side) |
600 mA |
Pins: UHO, VHO, WHO |
| Gate Drive Current (Low-Side) |
800 mA |
Pins: ULO, VLO, WLO |
| Over-Voltage Protection (OVP) |
3.50V (Typ) |
VODH threshold |
| Under-Voltage Protection (UVP) |
0.80V (Typ) |
VODL threshold |
| Over-Temperature Protection |
310 mV (Typ) |
External power stage monitoring (TC pin) |
Outstanding Features & Advantages
- Pure Hardware Implementation (No Programming Needed): Fully eliminates the complexity of writing MCU code. Rapid parameter tuning via minimal external circuitry enables faster time-to-market.
- Proprietary JYKJ Full-Condition Safe Startup: Engineered with robust load startup algorithms, ensuring smooth, high-torque, and reliable motor initiation under high-inertia loads.
- Advanced 16kHz VSPWM Drive Mode: Delivers an optimal balance between thermal efficiency and acoustic noise. Compared to standard 20kHz architectures, JY03B provides significantly higher torque output under identical power conditions.
- Dual-Level Current Feedback & Overload Protection:
- Level-1 (50mV Constant Current): At 50mV IS pin threshold, the IC clamps the drive current to safeguard external MOSFETs while maintaining maximum torque output.
- Level-2 (120mV Shutdown Protection): If the current spikes abnormally to 120mV, JY03B triggers an ultra-fast shutdown within 4.5 µs to prevent hardware failure.
- Intelligent Stall Protection with Auto-Restart: Automatically detects motor lock/stalls. It attempts 10 consecutive safe restarts; if uncompleted, it disables all outputs to protect system components until reset.
- Soft Direction Switching: Supports real-time Forward/Reverse (ZF pin) transitions. The driver safely decelerates the motor to a full stop before reversing, eliminating reverse voltage spikes and mechanical wear.
- Precise Speed Monitoring (M Pin Output): Generates one precise pulse signal per motor commutation event, facilitating effortless integration into closed-loop variable-frequency systems.
Order Information & Technical Support
Are you looking to optimize your next brushless motor drive design with a zero-programming, high-efficiency controller? JUYI Tech provides comprehensive hardware evaluation boards (such as the JYQD-V9.3E and JYQD-V9.3B series) to help you expedite your design phase.
Contact our team today for the latest datasheet, schematic diagrams, and volume pricing.
- Technical Support & Inquiry Email: Sales@juyitech.com
- TEL / WhatsApp: +86 185 3822 2869
