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Product Detailed Parameters
- Description：STEPPING MOTOR DRIVER
- Series：*
- Mfr：onsemi
- Package：Bulk
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：-
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：-
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The LB1838M-TLM-E/BKN is a monolithic integrated circuit designed for brushless DC motor control applications. It integrates a three-phase bridge driver, PWM comparator, and phase detection logic on a single chip. The device supports high-voltage operation up to 40V and can deliver continuous output currents suitable for small to medium-sized motors. Key electrical characteristics include a wide supply voltage range and built-in protection features such as overcurrent and thermal shutdown mechanisms to ensure reliable operation in various industrial and consumer electronic environments.
Feature Summary
- Integrates three-phase bridge driver with PWM comparator and phase detection logic
- Supports high-voltage operation up to 40V supply
- Includes built-in overcurrent and thermal shutdown protection
Applications
- Brushless DC motor drives in home appliances
- Fan and pump control systems
- Industrial automation equipment
Procurement Notes
Verify the exact suffix (TLM-E/BKN) against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure compatibility with existing PCB footprint and thermal management requirements. Cross-reference part numbers with official distributors to avoid counterfeit components. Confirm lead times and availability directly with authorized suppliers before finalizing procurement plans.
Selection Notes
Select this component when a compact solution for three-phase BLDC motor control is required. Consider its integrated protection features for robustness in harsh environments. Evaluate the supply voltage range and current capabilities against specific motor specifications. Compare pinout and package dimensions with alternative designs to ensure mechanical fit.
Part Context
This part belongs to onsemi's family of brushless DC motor drivers. It is designed to simplify the design of motor control systems by integrating multiple functions into a single IC. The series typically offers solutions for various power levels and application requirements, providing a cost-effective alternative to discrete component implementations.
Replacement Considerations
Check for direct pin-to-pin replacements listed in the manufacturer's substitution guide. Verify that any substitute component matches the voltage, current, and package specifications. Ensure functional equivalence in terms of control logic and protection features before switching parts.
