LB11946-E

Step Resolution:	--
Base Part Number:	LB11946
Supplier Device Package:	28-HDIP
Package / Case:	28-SDIP (0.500", 12.70mm) Exposed Pad
Mounting Type:	Through Hole
Operating Temperature:	-25°C ~ 85°C (TA)
Voltage - Load:	10 V ~ 45 V
Voltage - Supply:	3 V ~ 3.6 V, 4.5 V ~ 5.5 V
Current - Output:	1A
Applications:	General Purpose
Series:	--
Technology:	Bipolar
Interface:	Parallel, Serial
Output Configuration:	Half Bridge (4)
Function:	Driver - Fully Integrated, Control and Power Stage
Motor Type - AC, DC:	--
Motor Type - Stepper:	Bipolar
Part Status:	Obsolete
Packaging:	Tube

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Introduction

The LB11946-E is a special type of Power Management Integrated Circuit (PMIC) designed specifically for motor control. This chip is manufactured by the Nidec Corporation, a global leader in the power electronics sector that creates innovative, high-performance and energy-efficient solutions. The LB11946-E combines a H-bridge motor driver with advanced motor control features, making it a highly versatile and efficient driver to control a wide range of brushless DC (BLDC) motors.

Application Field

The LB11946-E is widely used in a variety of areas for motor control. It is popular for its ease of programming and ability to deliver consistent results. Its advanced motor control features allow it to be used in applications requiring high torque, such as industrial automation and robotics. Its low power consumption also makes it ideal for use in battery powered applications. Furthermore, its connectable peripheral control allows for easy interfacing with other systems. These features make the LB11946-E an ideal choice for use in products such as medical equipment, home appliances, industrial tools and electric vehicles.

Working Principle

The LB11946-E PMIC consists of a 3-channel H bridge driver, a PWM controller, and a control unit. The H bridge driver consists of three high-current bidirectional switches. When the switches are turned on, the current passes through the H bridge in a specific direction, allowing the motor to rotate in either direction. The PWM controller generates pulse-width-modulated (PWM) signals for controlling the speed of the motor. The control unit receives instructions from external devices or microprocessors and supplies the necessary management signals to the H bridge. The LB11946-E also has several built-in features that help reduce losses and improve efficiency. It has a powerful overcurrent protection feature, which uses the H bridge driver to detect any sudden spikes in current and quickly shut off the power to the motor to prevent damage. This chip also features a programmable motor current limit and a configurable speed control loop for optimum motor control. The LB11946-E also supports up to 8-way analogue input and 4-way pulse input to provide maximum flexibility in programming the motor.

Conclusion

The LB11946-E is a special type of PMIC designed specifically for motor control. It combines a 3-channel H bridge driver, a PWM controller, and a control unit, allowing it to be used in a wide range of applications. The LB11946-E has several built-in features that help to increase efficiency and reduce losses, such as overcurrent protection and a programmable motor current limit. With its ability to be programmed and its low power consumption, the LB11946-E is ideal for use in battery powered applications, such as electric vehicles and medical equipment.

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