DC Motor Control Solution

Application

Description

Complete DC motor control solution with PWM speed control and protection features

Core Advantages

Dual H-Bridge Configuration Controls two DC motors or one stepper motor with bidirectional capability

Integrated PWM Control Built-in PWM control simplifies microcontroller interface

Low RDS(on) Low on-resistance reduces power dissipation and improves efficiency

Comprehensive Protection Over-current, thermal shutdown, and under-voltage protection

Wide Voltage Range Supports motor voltages from 2.5V to 15V

Recommended Bill of Materials (BOM)

Item	Part Number	Description	Quantity	Datasheet
1				📄 Download
2				📄 Download

Applications

Toy motors

Small robotics

Camera autofocus

Printer mechanisms

Battery-powered devices

Technical Specifications

Motor Voltage

2.5V-12V

Peak Current

2A per channel

Continuous Current

1.2A per channel

Logic Voltage

2.5V-5V

R D S(on)

<1Ω

Operating Temperature

-40°C to +85°C

Customer Success Stories

Robotics Startup

Robotics |

Challenge

Needed compact motor driver for small robot with bidirectional control

Solution

Implemented AP200X dual H-bridge solution with PWM control

Results

Achieved smooth speed control and direction switching. Low standby current extended battery life by 25%.

Consumer Electronics OEM

Consumer Electronics |

Challenge

Required reliable motor driver for camera autofocus mechanism

Solution

Designed AP200X-based motor control with precise positioning

Results

Precise motor control achieved with minimal external components. Passed all reliability tests.

FAE Expert Insights

Senior FAE

Applications Engineer

10+ years

Professional Insights

Motor driver selection depends on current requirements, voltage range, and control interface. The AP200X series offers an excellent balance of performance and ease of use. For best performance, add external capacitors close to the motor supply pins to handle current surges. The thermal shutdown provides good protection. For higher current requirements, consider the AP200Y with 3A peak capability.

Key Takeaways

Select driver based on motor current and voltage requirements
Add bulk capacitors near motor supply for current surges
Use PWM for efficient speed control
Consider thermal management for continuous operation
Verify logic level compatibility with microcontroller

Decision Framework

Steps:

Determine motor voltage and current requirements
Select appropriate motor driver IC
Design power supply and decoupling
Implement control interface with microcontroller
Add protection and thermal management

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

Frequently Asked Questions

How many motors can be controlled?

The AP200X can control two DC motors independently or one stepper motor using both H-bridges. For more detailed information and application guidance, please consult the product datasheet or contact our technical support team.

Use for dual DC motor or single stepper applications.

What is the maximum current?

Peak current is 2A per channel for short durations. Continuous current is 1.2A per channel with proper thermal management. For more detailed information and application guidance, please consult the product datasheet or contact our technical support team.

Ensure continuous current is within thermal limits.

How is speed controlled?

Motor speed is controlled via PWM input. Apply PWM signal to enable pins to vary motor speed from 0% to 100%. For more detailed information and application guidance, please consult the product datasheet or contact our technical support team.

Use PWM for variable speed control.

Are protection diodes included?

Yes, internal clamp diodes are included for inductive kickback protection. External diodes are not required for most applications. For more detailed information and application guidance, please consult the product datasheet or contact our technical support team.

Internal protection sufficient for most applications.

What is the standby current?

Standby current is very low (<10μA) when both channels are disabled, making it suitable for battery-powered applications. For more detailed information and application guidance, please consult the product datasheet or contact our technical support team.

Low standby current ideal for battery applications.