LB11923V-TLM-E - Brand New onsemi Motor Drivers and Controllers
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Description
The LB11923V-TLM-E is a pre-driver IC designed for variable-speed control of 3-phase brushless motors. It allows users to implement a motor drive circuit with the desired output capacity (voltage, current) using discrete transistors for the output stage. This pre-driver IC features direct PWM drive for minimal power loss and includes a built-in VCO circuit, which allows for arbitrary motor speed control by varying the external clock frequency.
Specifications and features
- Direct PWM Drive Output: The LB11923V-TLM-E offers direct PWM drive output for efficient motor control.
- Speed Discriminator + PLL Speed Control Circuit: This pre-driver IC includes a speed discriminator and PLL speed control circuit for precise speed control.
- Speed Lock Detection Output: It provides a speed lock detection output for monitoring the motor speed.
- Built-in Crystal Oscillator Circuit: The LB11923V-TLM-E has a built-in crystal oscillator circuit for accurate frequency control.
- Forward/Reverse Switching Circuit: It features a forward/reverse switching circuit for easy motor direction control.
- Braking Circuit (Short Braking): This pre-driver IC includes a braking circuit, specifically short braking, for rapid deceleration of the motor.
- Full Complement of On-chip Protection Circuits: The LB11923V-TLM-E is equipped with lock protection, current limiter, and thermal shutdown protection circuits for reliable motor operation.
Application Scenarios
The LB11923V-TLM-E is commonly used in various applications that require variable-speed control of 3-phase brushless motors. Some examples include:
- Fan speed control in HVAC systems
- Industrial automation
- Electric vehicles
- Robotics
Comparison
The LB11923V-TLM-E offers several advantages for motor control:
- Direct PWM drive for minimal power loss
- Variable-speed control through external clock frequency
- Precise speed control with the speed discriminator and PLL circuit
- On-chip protection circuits for safe motor operation
Despite its advantages, there are a few disadvantages to consider:
- Requires the use of discrete transistors for the output stage
- Does not include built-in motor control algorithms
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Datasheet
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Shopping guide
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Popular parts of the same kind
- Datasheet: Download LB11923V-TLM-E
- Chipdatas Part: CD94-LB11923V-TLM-E
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 07:59 +0800
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