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LB11872
Sanyo HSOP-28P
LB11872
Sanyo HSOP-28P
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Service & Packaging
Service & Packaging
About After Sales Service
All Parts Extended Quality Guarantee
Initiate the application within 90 days from the shipment date.
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LB11872 DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
OverviewThe LB11872H is a three-phase brushless motor driver developed for driving the motors used for the polygonal mirror in laser printers and similar applications. It can implement, with a single IC chip, all the circuits required for polygonal mirror drive, including speed control and driver functions. The LB11872H can implement motor drive within minimal drive noise due to its use of current linear drive.Functions and Features• Three-phase bipolar current linear drive + midpoint control circuit• PLL speed control circuit• Speed is controlled by an external clock signal.• Supports Hall FG operation.• Built-in output saturation prevention circuit• Phase lock detection output (with masking function)• Includes current limiter, thermal protection, rotor constraint protection, and low-voltage protection circuits on chip.• On-chip output diodes.
Key Features
- Three-phase bipolar current linear drive + midpoint control circuit
- PLL speed control circuit
- Speed is controlled by an external clock signal.
- Supports Hall FG operation.
- Built-in output saturation prevention circuit
- Phase lock detection output (with masking function)
- Includes current limiter, thermal protection, rotor constraint protection, and low-voltage protection circuits on chip.
- On-chip output diodes.
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Manufacturer | SANYO | Product Category ! | Motor Drivers and Controllers |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is LB11872?
The LB11872 is a dual H-bridge motor driver IC designed for driving DC motors and stepper motors in various applications, such as robotics, automotive systems, and industrial automation. It provides a compact and efficient solution for motor control with built-in protection features.
How Does LB11872 Work?
The LB11872 works by receiving control signals to drive the connected motors in the desired direction and speed. It features H-bridge configurations that allow bi-directional control of DC motors and precise control of stepper motors. The IC also includes protection circuits to safeguard the motor and driver from overcurrent and overtemperature conditions.
How Many Pins does LB11872 have and What are the Functions of the Pinout Configuration?
The LB11872 is housed in a small and space-efficient 12-pin SIP (Single In-line Package) package. The pinout configuration includes:
- IN1A, IN2A: Inputs for controlling motor A.
- OUT1A, OUT2A: Outputs for driving motor A.
- IN1B, IN2B: Inputs for controlling motor B.
- OUT1B, OUT2B: Outputs for driving motor B.
- VCC: Positive power supply pin.
- VSS: Ground pin.
- BRAKE: Active-low brake input for both motor channels.
What are the Pros and Cons of LB11872?
Pros:
- Dual H-Bridge Configuration: Can control two motors independently for versatile applications.
- Built-in Protection: Includes overcurrent protection and thermal shutdown to ensure safe operation.
- Compact Size: SIP package offers space-efficient integration into motor control systems.
- Simple Control Interface: Requires minimal external components and simple control signals for operation.
Cons:
- Power Dissipation: May require heatsinking for high current applications to manage heat dissipation.
- Motor Compatibility: Designed for driving DC and stepper motors, not suitable for other types of motors.
- Limited Current Handling: The maximum current ratings may not be suitable for high-power motor applications.
Are There Any Equivalents/Alternatives to LB11872 for Recommendation?
Alternatives to the LB11872 include the L298N and L293D motor driver ICs, which offer similar dual H-bridge configurations for motor control applications.
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