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 need 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 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 the whether a RD or FG output signal is required. Lastly the functionality requirements must be considered.

When selecting a stepper motor driver, you must consider the microstep 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. 456-434
Mfr. Part No.L298HN
$8.40
Each
units
Brushed DC - Dual Full Bridge 4A - - 46 V Through Hole MULTIWATT H 7 V 15 4.5 V - -
RS Stock No. 215-9479
Mfr. Part No.NJM3717D2
$4.98
Each
units
Stepper - Bipolar 0.35A - - 40 V Through Hole PDIP 5.25 V 16 4.75 V - -
RS Stock No. 166-2041
Mfr. Part No.FNC42060F
$22.40
Each (In a Tube of 72)
units
AC Induction - 3 Phase 20A - - 600 V Through Hole PDIP 16.5 V 26 13.5 V 5kHz 2000Vrms
RS Stock No. 828-9927
Mfr. Part No.L297/1
$12.94
Each
units
Stepper - Bipolar - - - 10 V Through Hole PDIP 7 V 20 4.75 V - -
RS Stock No. 121-8411
Mfr. Part No.L293DNE
$3.972
Each (In a Tube of 25)
units
Brushed DC - Quad Half Bridge 0.6A - - 36 V Through Hole PDIP 36 V 16 4.5 V - -
RS Stock No. 699-6746
Mfr. Part No.BD6221F-E2
BrandROHM
$4.06
Each
units
Brushed DC - Full Bridge 1A - - 18 V Surface Mount SOP 15 V 8 6 V - -
RS Stock No. 864-9038
Mfr. Part No.FNC42060F
$27.32
Each
units
AC Induction - 3 Phase 20A - - 600 V Through Hole PDIP 16.5 V 26 13.5 V 5kHz 2000Vrms
RS Stock No. 920-6216
Mfr. Part No.L298HN
$6.975
Each (In a Tube of 25)
units
Brushed DC - Dual Full Bridge 4A - - 46 V Through Hole MULTIWATT H 7 V 15 4.5 V - -
RS Stock No. 526-868
Mfr. Part No.L293DNE
$5.738
Each (In a Pack of 5)
units
- - - - - - - Through Hole PDIP - 16 - - -
RS Stock No. 178-5071
Mfr. Part No.L293DD013TR
$3.597
Each (On a Reel of 1000)
units
Brushed DC - Dual Full Bridge 0.6A - - 36 V Surface Mount SOIC 36 V 20 4.5 V 5kHz -
RS Stock No. 923-2420
Mfr. Part No.LMD18201T/NOPB
$20.349
Each (In a Tube of 20)
units
Brushed DC - Full Bridge 3A - - 55 V Through Hole TO-220 55 V 11 12 V - -
RS Stock No. 163-2390
Mfr. Part No.LB1838M-TLM-E
$1.551
Each (On a Reel of 1000)
units
Stepper - Dual Full Bridge 1A - - 9 V Surface Mount MFP 9 V 14 2.5 V - -
RS Stock No. 714-0625
Mfr. Part No.L293DD
$6.17
Each
units
Brushed DC - Dual Full Bridge 0.6A - - 36 V Surface Mount SOIC 36 V 20 4.5 V - -
RS Stock No. 922-2723
Mfr. Part No.UC3770AN
$10.109
Each (In a Tube of 25)
units
Stepper - Bipolar 2A - - 45 V Through Hole PDIP 45 V 16 10 V - -
RS Stock No. 769-3842
Mfr. Part No.LB1838M-TLM-E
$2.90
Each
units
Stepper - Dual Full Bridge 1A - - 9 V Surface Mount MFP 9 V 14 2.5 V - -
RS Stock No. 178-1403
Mfr. Part No.L293DD
$5.236
Each (In a Tube of 40)
units
Brushed DC - Dual Full Bridge 0.6A - - 36 V Surface Mount SOIC 36 V 20 4.5 V - -
RS Stock No. 189-1217
Mfr. Part No.L6203
$12.06
Each
units
Brushed DC - Full Bridge 4A - - 48 V Through Hole MULTIWATT V 48 V 11 12 V - -
RS Stock No. 866-0805
Mfr. Part No.A4953ELJTR-T
$2.917
Each (In a Pack of 3)
units
Brushed DC - Full Bridge 2A - - 40 V Surface Mount SOIC 40 V 8 8 V - -
RS Stock No. 680-7175
Mfr. Part No.A3966SLBTR-T
$5.17
Each
units
Stepper - Dual Full Bridge 0.65A - - 30 V Surface Mount SOIC W 5.5 V 16 4.75 V - -
RS Stock No. 407-139
Mfr. Part No.LMD18201T/NOPB
$25.408
Each (In a Pack of 5)
units
Brushed DC - Full Bridge 3A - - 55 V Through Hole TO-220 55 V 11 12 V - -
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