Application Focus
Issue Number | 001
September 2011
Motor Control
Motor control is used to convert electrical
energy into rotational energy to control the
movement and flow of air and fluids.
End products that make use of motor
control are:
Heating, ventilation and
air conditioning equipment
Cooling fans
Pumps
Printers
Vending machines
Automated Teller Machines (ATMs)
Sprinkler systems
Body control electronics (windows, etc)
in motor vehicles
Air conditioning units in motor vehicles
Wheelchairs, golf carts and other
battery powered vehicles
Stairlifts
Electronic toys
Input Supply
Transient
Protection
Current
Measurement
Logic
Input
Signals
Motor Speed
Control and
Signal
Conditioning
Reverse
Voltage
Protection
Point Of
Load
Regulator
Motor
Pre-Driver
Reset
Gate
Driver
Power
Switch
Hall
Sensor
Note: Functions within dotted line are available as All-In-One
smart motor driver IC solutions for low power applications
www.diodes.com
M
Application Focus
Issue Number | 001
September 2011
Motor Control
Functional Block Block Function
Motor
Pre-Driver
Power
Switch
Diodes Incorporated provides designers of motor control
solutions with a wide range of discrete and analog semiconductors.
The highlights of the Diodes Incorporated portfolio are summarized in the table below.
Product Description
Product/Product Family
Pre-driver takes speed control input signals, commutation Hall sensor and motor
current feedback signals to drive output power stages to control Brushless DC motor.
Single phase BLDC motor with active Tail-End Current Control TSSOP20.
ZXBM1016
Pre-driver takes speed control input signals, commutation Hall sensor and motor
current feedback signals to drive output power stages to control Brushless DC motor.
Single phase BLDC motor with inputs supply up to 18V in TSSOP20.
ZXBM1015/ZXBM1017
Pre-driver takes speed control input signals and commutation Hall sensor feedback
signal to drive output power stages to control Brushless DC motor.
Single phase BLDC motor with inputs supply up to 18V in QSOP16.
ZXBM1004
Pre-driver takes speed control input signals and commutation Hall sensor feedback
signal to drive output power stages to control Brushless DC motor.
Two phase BLDC motor with inputs supply up to 18V in MSOP10 or QSOP16.
ZXBM200x series
Dual N and P MOSFETs from 30V to 100V in one SO8 or SM8 package.
ZXMHCxxxxN8 series
40V complementary N and P MOSFETs. For dual/half bridge used in 12V DC Motor.
DMC4040SSD
60V complementary N and P MOSFETs. For dual/half bridge used in 24V DC Motor.
ZXMC4559DN8
100V complementary N and P MOSFETs. For dual/half bridge used in 48V DC Motor.
ZXMC10A816N8
60V VCE NPN BJT for 12V single phase DC Motor.
FMMT619
Provides directional power to the motor.
75V VCE NPN BJT for 24V two phase DC Motor.
FCX1053
Gate Driver
Buffer stage between low power pre-driver IC and high power MOSFET/IGBT.
High speed non-inverting gate driver with Vcc range 12V to 40V in SOT23-6 package.
ZXGD300x series
Hall Sensor
Hall Sensor detects motor speed and position of rotor.
A latched Hall Effect sensor with integrated amplifier for commutation detection. Supply from 3V to 28V with internal protection.
AH3761, AH17x series, AH37x series
40V BJT Zener array in SOT23-6 for use in 12V DC motors.
DVRN6056
60V and 100V NPN BJT used as a linear control element in thermal efficient packages for use in 24V and 48V DC Motors.
DXTN07100BP5, ZXTN25100DG,
FCX493, FZT605, FZT491, FMMT493A,
FMMT634
Precision zener diode provides simplest low current regulator in SOD323, SOD523, SOT23.
DDZxxxS, MMSZxxxxBT
and UDZxxxS series
Linear regulators up to 30V to provide 2.5V to 12V @ 200mA.
ZMRxx, ZSRxx, AP78Lxx series,
AP7631, AP1117
45V, 10A low drop out rectifier in PowerDI5.
SBR10U45SP5
60V, 3A low drop out rectifier in PowerDI 123SMA.
SBR3U60P1
100V, low drop out, 20A rectifier in TO252.
SBR12U100P5
200V, low drop out, 10A rectifier packaged in PowerDI5.
SBR10U200P5
Point of Load
Regulators
Reverse
Voltage
Protection
Current
Measurement
Voltage regulator provides fixed output voltage from high input voltage.
Protects motor control circuit from accidental reverse supply voltage connection
and motor commutation spikes getting into control circuit.
Monitor the load current by measuring a voltage across a sense resistor, produce either a voltage or current output
Monitor the current taken by the motor, indicate to the controller if there is a problem.
proportional to the measured current.
ZXCT series
Reset
Reset generators can be used to monitor power supplies where microcontrollers
and microprocessors are used as the Pre-driver.
Reset generators monitor the power supply and flag the micro.
APX803 to APX825 series
Logic
Single gate logic can be used to correct functionality where microcontrollers
and microprocessors are used as the Pre-driver.
Single gate logic in tiny packages: DFN1010, DFN1410, SOT25/25, SOT353/63.
74LVC1G and 74LVCE1G series,
74AHC1G and 74AHCT1G series
Converts speed demand PWM into DC signal to set speed demand.
N Channel MOSFET or Op Amp to act as buffer.
2N7002W or LM358
Single chip with integrated Hall sensor, amplifiers, motor control function and output stage to drive single phase BLDC fans and motors.
AH579x series and AH5771
Single chip with integrated Hall sensor, amplifiers, motor control function and output stage to drive two phase BLDC fans and motors.
AH28x series
Motor Speed
Control and Signal
Conditioning
All-In-One
Motor Driver
Single chip solution to drive the low power Brushless DC (BLDC) motors.
www.diodes.com