Motor Driver ICs

Motor Driver ICs are current amplifiers and are an essential component of motor interfacing. The motor driver integrated circuit chip acts as the interface between a microprocessor or microcontroller, and a motor. As microprocessors tend to operate at lower currents, and motors at higher, motor driver ICs are needed to supply current to the motor as needed.

The RS Components range of Motor Driver ICs includes models from leading brands, in various types and configurations to support your design needs.

Applications

Motor Driver ICs are commonly used in robotics to drive DC motors from microcontrollers. They are an essential component in controlling motion in autonomous robots, and so are widely used in automation. They are also found in more common environments, such as office appliances and in automotive electronics.

Selecting a Motor Driver IC

As different motors have different signal requirements, a motor driver IC is usually specific to a motor type. RS Components offer motor drivers for brushless DC motors (BLDC,) brushed DC motors, and stepper motors. When choosing your motor driver IC, you should be aware of the type of motor you will be driving, as well as its power supply voltage range, and output current.

Brushed DC Motors can be used in anything from security cameras to ATM machines, depending on the required voltage. When selecting a motor driver for a brushed DC motor, it is important to ascertain whether speed control is needed, and what type of speed control is needed (such as a thermistor, or voltage control.) You must then ascertain whether integrated or pre-driver type motor driver power. Additional features such as fault protection must also be considered.

Brushless DC Motors are typically used for driving cooling fans in electronics. They can be found in white goods such as washing machines and refrigerators, as well as in automotive applications. When selecting a driver control IC for a brushless motor driver, you must ascertain whether an RD or FG output signal is required. Lastly, the functionality requirements must be considered.

When selecting a stepper motor driver, you must consider the micro-step resolution (such as full step or half step,) control input type (such as parallel or clock input) and the required function.


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Description Price Motor Type Configuration Output Configuration Maximum IGBT Collector Current Maximum Output Current Maximum Supply Voltage Maximum Collector Emitter Voltage Mounting Type Package Type Maximum Operating Supply Voltage Pin Count Minimum Operating Supply Voltage Typical Switching Frequency Maximum Isolation Rating
RS Stock No. 699-6736
Mfr. Part No.BD6211F-E2
BrandROHM
$3.20
Each
units
Brushed DC - Full Bridge 1A - - 7 V Surface Mount SOP 5.5 V 8 3 V - -
RS Stock No. 456-428
Mfr. Part No.L297D
$12.50
Each
units
Stepper - Bipolar - - - 7 V Surface Mount SOIC 7 V 20 4.75 V - -
RS Stock No. 803-2342
Mfr. Part No.EMC2303-1-KP-TR
BrandMicrochip
$2.10
Each (In a Pack of 5)
units
- - PWM NoneA - 3.6 V 3.3 V Surface Mount - - 12 - - -
RS Stock No. 774-3634
Mfr. Part No.NUD3105DMT1G
$0.718
Each (In a Pack of 10)
units
- - - 0.5A 300mA - 6 V Surface Mount SC-74 - 6 - 10kHz -
RS Stock No. 825-9263
Mfr. Part No.BTN8960TAAUMA1
BrandInfineon
$8.46
Each (In a Pack of 2)
units
BLDC - Half Bridge 30A - - 40 V Surface Mount TO-263 18 V 7 8 V - -
RS Stock No. 426-196
Mfr. Part No.L6506D
$5.50
Each
units
Stepper - - - - - 7 V Surface Mount SOIC 7 V 20 4.5 V - -
RS Stock No. 714-0524
Mfr. Part No.E-L6219DS
$3.62
Each
units
Stepper - Dual Full Bridge 0.75A - - 46 V Surface Mount SOIC 46 V 24 10 V - -
RS Stock No. 714-7715
Mfr. Part No.L298P
$9.55
Each
units
Brushed DC - Dual Full Bridge 4A - - 46 V Surface Mount PowerSO 46 V 20 4.8 V - -
RS Stock No. 920-6207
Mfr. Part No.L6205D
$8.718
Each (In a Tube of 40)
units
Brushed DC - Dual Full Bridge 2.8A - - 52 V Surface Mount SOIC 52 V 20 8 V 100kHz -
RS Stock No. 791-9144
Mfr. Part No.L6474PD
$10.90
Each
units
Stepper - Bipolar 3A - - 45 V Surface Mount PowerSO 45 V 36 4 V 800kHz -
RS Stock No. 177-5541
Mfr. Part No.A3930KJPTR-T
$6.204
Each (On a Reel of 1500)
units
BLDC - 3 Phase - - - 50 V Surface Mount LQFP 50 V 48 5.5 V - -
RS Stock No. 103-5145
Mfr. Part No.NUD3105DMT1G
$0.258
Each (On a Reel of 3000)
units
- - - 0.5A 300mA - 6 V Surface Mount SC-74 - 6 - 10kHz -
RS Stock No. 165-8232
Mfr. Part No.IR2125STRPBF
BrandInfineon
$3.948
Each (On a Reel of 1000)
units
- - - - - - - - - - - - - -
RS Stock No. 102-3535
Mfr. Part No.L297D
$10.878
Each (In a Tube of 40)
units
Stepper - Bipolar - - - 7 V Surface Mount SOIC 7 V 20 4.75 V - -
RS Stock No. 801-6817
Mfr. Part No.STK672-442BN-E
$14.69
Each
units
Stepper - Unipolar 3.5A - - 50 V Through Hole SIP 5.25 V 19 4.75 V 48kHz -
RS Stock No. 920-6197
Mfr. Part No.L6470H
$11.199
Each (In a Tube of 50)
units
Stepper - Bipolar 3A - - 45 V Surface Mount TSSOP 45 V 28 8 V 125kHz -
RS Stock No. 919-6576
Mfr. Part No.E-L6258E
$9.49
Each (In a Tube of 31)
units
Stepper - Dual Full Bridge 1.2A - - 40 V Surface Mount PowerSO 40 V 36 12 V 18.5kHz -
RS Stock No. 168-8010
Mfr. Part No.L6230PD
$8.89
Each (In a Tube of 31)
units
BLDC - 3 Phase 1.4A - - 52 V Surface Mount PowerSO 52 V 36 8 V 100kHz -
RS Stock No. 162-6150
Mfr. Part No.DRV8832DGQ
$3.784
Each (In a Tube of 80)
units
Brushed DC - Full Bridge 1A - - 6.8 V Surface Mount MSOP 6.8 V 10 2.75 V - -
RS Stock No. 624-8084
Mfr. Part No.L6205D
$10.74
Each
units
Brushed DC - Dual Full Bridge 2.8A - - 52 V Surface Mount SOIC 52 V 20 8 V 100kHz -