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Product Detailed Parameters
- Description：SYSTEM 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 LB8115W-NA-TLM-E is a system motor driver manufactured by onsemi, designed for variable speed control of three-phase brushless motors. It integrates a predriver IC with a built-in charge pump circuit to drive high-side and low-side output n-channel power FETs. The device supports high-efficiency operation through low noise PWM drive and synchronous rectifying systems. Key functional blocks include a speed discriminator, PLL speed control system, and a built-in VCO circuit for generating reference signals. It features Hall bias switching, short braking capabilities, and comprehensive protection circuits such as current limiters and lock protection.
Feature Summary
- Integrates a predriver IC with a built-in charge pump circuit for driving external n-channel power FETs in high-side and low-side configurations.
- Supports high-efficiency motor control via low noise PWM drive and synchronous rectifying systems.
- Includes a speed discriminator and PLL speed control system with a built-in VCO circuit for reference signal generation.
- Provides full on-chip protection including current limiter and lock protection circuits.
Applications
- Variable speed control of three-phase brushless motors
- High-efficiency motor drive implementations using external power FETs
- Systems requiring integrated speed discrimination and PLL control
Procurement Notes
Verify the specific ordering suffix and package details against the official onsemi datasheet to ensure compatibility with your design requirements. Confirm RoHS compliance status and material composition documentation directly from the manufacturer's resources. Ensure that the selected component matches the exact part number specifications for voltage ratings and thermal performance before procurement.
Selection Notes
Select this component when designing systems requiring integrated predriver functionality for three-phase brushless motors. Consider its built-in charge pump and protection features if minimizing external component count is a priority. Evaluate the thermal dissipation requirements based on the allowable power dissipation parameters specified in the datasheet for your operating environment.
Part Context
The LB8115W-NA-TLM-E belongs to the LV8105W/LB8115W family of Bi-CMOS ICs designed for motor control applications. These devices are engineered to provide robust solutions for industrial and consumer electronics where efficient and reliable brushless motor management is critical. The integration of control logic with driver capabilities simplifies the overall system architecture.
Replacement Considerations
Consult the official onsemi substitution guide or cross-reference list for verified alternative part numbers. Do not assume pin-to-pin compatibility with other models without explicit confirmation from the manufacturer's documentation. Verify electrical characteristics and thermal performance match the original design requirements.
