JUYI
JUYI Energy Release Management Chip (ERMC) JY01PL for BLDC Motor Driver Board
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JUYI Energy Release Management Chip (ERMC) JY01PL for BLDC Motor Driver Board
GENERAL DESCRIPTION
JY01PL is an Energy Release Management Chip (ERMC) specifically designed for motor drive circuits.
Its primary function is to monitor the power supply voltage and directly drive a MOSFET to dissipate
excess electrical energy when the voltage exceeds a preset threshold, thereby protecting the motor
drive circuit and peripheral devices from damage caused by high-voltage surges generated during
motor braking.
With its simplified application design and stable operation, JY01PL has been widely adopted in
various brushless DC motor drive control systems.
FEATURES
● Typical Operating Voltage: 12V
● Quiescent Current Consumption: 0.1-1mA
● Input Current: ≤50nA
● Maximum Output Current: 280mA
● Package Type: SOP-8
● Quiescent Current Consumption: 0.1-1mA
● Input Current: ≤50nA
● Maximum Output Current: 280mA
● Package Type: SOP-8
APPLICATIONS
● Brushless Motor (BLDC)
● Energy Recovery Management and Control Circuit (ERMCC)
● Energy Recovery Management and Control Circuit (ERMCC)
Typical Application Diagram
Package and Pin Function
SOP-8
Note: When the voltage at Pin 4 (Vin) falls below the internal reference voltage, the comparator outputs
a LOW level,resulting in a LOW state at the OUT terminal. This turns off the power transistor Q. Once Vin
exceeds the internal reference voltage, the comparator outputs a HIGH level, driving OUT to HIGH and
activating Q. This allows the power supply to form a discharge path through the load resistor Rs to the
negative terminal, promptly dissipating the electrical energy generated by the motor, thereby protecting
the circuit and peripheral devices.
The internal block diagram of the chip reveals two resistors on the comparator, forming a feedback network
with approximately 10% ratio. This configuration introduces controlled hysteresis, resulting in a trip voltage
of ~2.2V and a return voltage of ~1.8V. Mastering these characteristics of JY01PL enables flexible application
in diverse scenarios.
Selection Guidelines for Energy Dissipation Components
- MOSFET (Q) Selection:
- Use the same specifications as the motor drive MOSFET (e.g., VDS, RDS(on), Qg).
- Resistor (Rs) Selection:
- Current through Rs ≤ MOSFET rated current.
- Resistance value > 0 Ω (non-zero impedance required).
- Resistor Power Rating:
- Determine through maximum braking frequency testing.
- Prioritize higher power ratings for safety margins.
Absolute Maximum Ratings
Notice:
Exceeding the "Absolute Maximum Ratings" may cause permanent damage to the chip. The listed limits represent
extreme thresholds—operating under such conditions does not guarantee performance specifications.
Prolonged operation near these limits will degrade chip reliability.
Functional Block Diagram
Package Dimension Diagram
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