The STK673-010-E is a 3-phase stepping motor driver hybrid IC with built-in microstep controller having a bipolar constant current PWM system, in which a power MOSFET is employed at an output stage.
It includes a 3-phase distributed controller for a 3-phase stepping motor to realize a simple configuration of the motor driver circuit.
The number of motor revolution can be controlled by the frequency of external clock input. 2, 2-3, W2-3 and 2W2-3-phase excitation modes are available. The basic step angle of the stepping motor can be separated as much as one-eighth 2-3-phase to 2W2-3-phase excitation mode control quasi-sine wave current, thereby realizing low vibration and low noise.

*Number of motor revolution can be controlled by the frequency of external clock input.
*4 types of modes, i.e., 2, 2-3, W2-3 and 2W2-3-phase excitations, are available which can be selected based on rising of clock signals, by switching Highs and Lows of Mode A and Mode B terminals.
*Setting a Mode C terminal Low allows an excitation mode that is based on rising and falling of a clock signal.
By setting the Mode C terminal Low, phases that are set only by Mode A and Mode B can be changed to other phases as follows without changing the number of motor revolution: 2-phase may be switched to 2-3-phase; 2-3-phase may be switched to W2-3-phase; and W2-3-phase may be switched to 2W2-3-phase.
*Phase is maintained even when the excitation mode is changed.
*An MOI output terminal which outputs 1 pulse per 1 cycle of phase current.
*A CW/CCW terminal which switches the rotational direction.
*A Hold terminal which temporarily holds the motor in a state where the phase current is conducted.
*An Enable terminal which can forcibly turns OFF a MOSFET of a 6 output driving element in normal operation.
*Schmitt inputs with built-in pull-up resistor (20kΩ typ)
*Motor current can be set by changing the voltage of the Vref terminal (0.63V per 1A, dealing as much as 0 to 1/2VCC2 (4A)).
*The clock input for controlling the number of motor revolution lies in a range of 0 to 50kHz.
*Supply voltage: VCC1 = 16 to 30V, VCC2 = 5.0V ±5%
*A built-in current detection resistor (0.227Ω)
*A motor current during revolution can deal with as high as 2.4A at Tc = 105°C and as high as 4A at Tc = 50°C or lower.

*As a 3-phase stepping motor driver for transmission and reception in a facsimile.
*As a 3-phase stepping motor driver for feeding paper feed or for an optical system in a copying machine.
*Industrial machines or products employing 3-phase stepping motor driving.


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PBL 3770A is a bipolar monolithic circuit intended to control and drive the current in one winding of a stepper motor. It is a high power version of PBL 3717 and special care has been taken to optimize the power handling capability without suffering in reliability.
The circuit consists of a LS-TTL compatible logic input stage, a current sensor, a monostable multivibrator and a high power H-bridge output stage. The circuit is pin-compatible with the PBL 3717 industry-standard driver.
Two PBL 3770A and a small number of external components form a complete control and drive unit for LS-TTL or microprocessor-controlled stepper motor systems.

Key Features
• Half-step and full-step operation.
• Switched mode bipolar constant current drive
• Wide range of current control 5 -1800 mA.
• Wide voltage range 10 - 45 V.
• Designed for unstabilized moto supply voltage.
• Current levels can be selected in steps or varied continuously.
• Thermal overload protection.


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International Rectifier's IRAM136-3063B is a 30A, 600V Integrated Power Hybrid IC with Internal Shunt Resistor for Appliance Motor Drives applications such air conditioning systems and compressor drivers as well as for light industrial application. IR's technology offers an extremely compact, high performance AC motor driver in a single isolated package to simplify design.
This advanced HIC is a combination of IR's low VCE(on) Punch-Through IGBT technology and the industry benchmark 3-Phase high voltage, high speed driver in a fully isolated thermally enhanced package. A builtin temperature monitor and over-current and over-temperature protections, along with the short-circuit rated IGBTs and integrated under-voltage lockout function, deliver high level of protection and failsafe operation. Using a new developed single in line package (SiP3) with heat spreader for the power die along with full transfer mold structure minimizes PCB space and resolves isolation problems to heatsink.

*Integrated Gate Drivers
*Temperature Monitor and Protection
*Overcurrent shutdown
*Low VCE(on) Advance Planar Super Rugged Technology
*Undervoltage lockout for all channels
*Matched propagation delay for all channels
*5V Schmitt-triggered input logic
*Cross-conduction prevention logic
*Lower di/dt gate driver for better noise immunity
*Motor Power up to 3.3kW / 85~253 Vdc
*Fully Isolated Package, Isolation 2000VRMS min


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 The TMC246 / TMC246A (1) is a dual full bridge driver IC for bipolar stepper motor control
The integrated unique sensorless stall detection (pat. pend.) StallGuard™ makes it a good choice for applications, where a reference point is needed, but where a switch is not desired. Its ability to predict an overload makes the TMC246 an optimum choice for drives, where a high reliability is desired.
The TMC246 is realized in a HVCMOS technology combined with Low-RDS-ON high efficiency MOSFETs (pat. pend.).
It allows to drive a coil current of up to 1500mA even at high environment temperatures.
Its low current consumption and high efficiency together with the miniature package make it a perfect solution for embedded motion control and for battery powered devices.
Internal DACs allow microstepping as well as smart current control.
The device can be controlled by a serial interface (SPI™i) or by analog / digital input signals. Short circuit, temperature, undervoltage and overvoltage protection are integrated.

• Sensorless stall detection StallGuard™ and load measurement integrated
• Control via SPI with easy-to-use 12 bit protocol or external analog / digital signals
• Short circuit, overvoltage and overtemperature protection integrated
• Status flags for overcurrent, open load, over temperature, temperature pre-warning, undervoltage
• Integrated 4 bit DACs allow up to 16 times microstepping via SPI, any resolution via analog control
• Mixed decay feature for smooth motor operation
• Slope control user programmable to reduce electromagnetic emissions
• Chopper frequency programmable via a single capacitor or external clock
• Current control allows cool motor and driver operation
• 7V to 34V motor supply voltage (A-type)
• Up to 1500mA output current and more than 800mA at 105°C
• 3.3V or 5V operation for digital part
• Low power dissipation via low RDS-ON power stage
• Standby and shutdown mode available


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 Combining logic and power, the UDN2936W-120 provides commutation and drive for three-phase brushless dc motors.
Each of the three outputs are rated at 45 V and ±2 A (±3 A peak), and include internal ground clamp and flyback diodes.
The driver also features internal commutation logic, PWM current control, and thermal shutdown
The UDN2936W-120 is compatible with single-ended digital or linear Hall effect sensors.
The commutating logic is programmed for 120° electrical separation.
The UDN2936W-120 can replace the original UDN2936W (60° electrical separation) by simply adding an inverter at the H2 input.
Current control is accomplished by sensing current through an external sense resistor and pulse-width modulating the source drivers.
Voltage thresholds and hysteresis can be externally set by the user.
If desired, internal threshold and hysteresis defaults (300 mV, 7.5 percent) can be used.
The UDN2936W-120 also includes braking and direction control.
Internal protection circuitry prevents crossover current when braking or changing direction.
The UDN2936W-120 is also available for operation between -40°C and +85°C.
To order, change the prefix from ‘UDN’ to ‘UDQ’.
For maximum power-handling capability, the UDN2936W-120 is supplied in 12-pin single in-line power-tab package.
An external heat sink may be required for high-current applications.
The tab is at ground potential and needs no insulation.

* 10 V to 45 V Operation
* ±3 A Peak Output Current
* Internal Clamp Diodes
* Internal PWM Current Control
* 120° Commutation Decoding Logic
* Thermal Shutdown Protection
* Compatible with Single-Ended or Differential Hall-Effect Sensors
* Braking and Direction Control


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Features and Benefits
▪ Interchangeable with SGS L6219DS
▪ 750 mA Continuous Output Current
▪ 45 V Output Sustaining Voltage
▪ Internal Clamp Diodes
▪ Internal PWM Current Control
▪ Low Output Saturation Voltage
▪ Internal Thermal Shutdown Circuitry
▪ Similar to Dual PBL3717, UC3770

The L6219DS motor driver is designed to drive both windings of a bipolar stepper motor or bidirectionally control two DC motors. Both bridges are capable of sustaining 45 V and include
internal pulse-width modulation (PWM) control of the output current to 750 mA. The outputs have been optimized for a low output saturation voltage drop (less than 1.8 V total source
plus sink at 500 mA).
For PWM current control, the maximum output current is determined by user selection of a reference voltage and sensing resistor. Two logic-level inputs select output current limits of
0, 33, 67, or 100% of the maximum level. A PHASE input to each bridge determines load current direction.
The bridges include both ground clamp and flyback diodes for protection against inductive transients. Internally generated delays prevent crossover currents when switching current
direction. Special power-up sequencing is not required. Thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits.
The L6219DS is supplied in a 24-pin surface-mountable SOIC, with 4 internally-fused leads for maximum package power dissipation in the smallest possible construction. It is lead (Pb) free with 100% matte tin leadframe plating.

TAG Driver, dual, MOTOR, PWM

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General features
* Register Based Architecture
* 3 wire serial port up to 50MHz
* Ultra-thin package

Spindle driver

* 0.5A peak current drive capability
* Integrated power driver devices
* ST Smooth Drive® architecture
* Current sense with zero external components
* Inductive sense start-up support

VCM driver
* 0.5A peak current drive capability
* Integrated power driver devices
* 14 Bit linear DAC for current command
* Ramp load/unload and emergency retract support
Other functions
* Integrated positive and negative switching regulators
* Shock detect circuitry
* 10-bit ADC
* POR on reset with integrated delay
* Free fall interface

L7208 is available in an ultra-thin package and is optimized for 1.8 inch and sub-1.8 inch consumer equipment drives.
The spindle motor driver subsystem integrates all power FETs driven by ST's Smooth Drive®
commutation technology.
The voice coil driver block includes the power FETs, emergency retract function as well as ramp load and unload capability.
Positive and negative regulators are integrated together with provision for shock sensing and
free-fall detection.
Extremely low power consumption, in all modes of operation, is achieved by an optimized chip
partitioning enabling extended battery life in consumer applications.
L7208 embeds a serial interface with a maximum speed of 50 MHz.

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General Description
The AZ5954 is a four-channel BTL driver IC for driving the motors and actuators in products such as CDROM and DVD. Two of the channels use current feedback to minimize the current phase shift caused by the influence of load inductance. The IC is used in CDROM drivers and DVD drivers, etc. The AZ5954 is available in HSOP-28 package.

· Wide Dynamic Range (3.9V(Typ.) When VCC = 12V, PVCC=5V and RL=8Ω)
· Level Shift Circuit On Chip
· Thermal Shutdown Circuit On Chip
· Internal Standby Mode

· CD-ROM Driver
· DVD Driver


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The 33926 is a monolithic H-Bridge Power IC designed primarily for automotive electronic throttle control, but is applicable to any low-voltage DC servo motor control application within the current and voltage limits stated in this specification.
The 33926 is able to control inductive loads with currents up to 5.0 A peak. RMS current capability is subject to the degree of heatsinking provided to the device package. Internal peak-current limiting (regulation) is activated at load currents above 6.5 A ± 1.5 A. Output loads can be pulse width modulated (PWM’ed) at frequencies up to 20 kHz. A load current feedback feature provides a proportional (0.24% of the load current) current output suitable for monitoring by a microcontroller’s A/D input. A Status Flag output reports undervoltage, overcurrent, and overtemperature fault conditions.
Two independent inputs provide polarity control of two half-bridge totem-pole outputs. Two independent disable inputs are provided to force the H-Bridge outputs to tri-state (high impedance off-state). An invert input changes the IN1 and IN2 inputs to LOW = true logic.

•8.0 V to 28 V Continuous Operation (Transient Operation from 5.0 V to 40 V)
•225 mΩ maximum RDS(ON) @ 150°C (each H-Bridge MOSFET)
•3.0 V and 5.0 V TTL / CMOS Logic Compatible Inputs
•Overcurrent Limiting (Regulation) via Internal Constant-Off-Time PWM
•Output Short Circuit Protection (Short to VPWR or Ground)
•Temperature-Dependant Current-Limit Threshold Reduction
•All Inputs have an Internal Source/Sink to Define the Default (Floating Input) States
•Sleep Mode with Current Draw < 50 μA (with Inputs Floating or Set to Match Default Logic States)
•Pb-Free Packaging Designated by Suffix Code PNB

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 Designed for pulse-width modulated (PWM) current control of dc motors, the A3959SB, A3959SLB, and A3959SLP are capable of output currents to ±3 A and operating voltages to 50 V. Internal fixed off-time PWM current-control timing circuitry can be adjusted via control inputs to operate in slow, fast, and mixed current-decay modes.

 PHASE and ENABLE input terminals are provided for use in controlling the speed and direction of a dc motor with externally applied PWM-control signals. Internal synchronous rectification
control circuitry is provided to reduce power dissipation during PWM operation.
Internal circuit protection includes thermal shutdown with hysteresis, undervoltage monitoring of supply and charge pump, and crossover-current protection. Special power-up sequencing is not required.

 The A3959SB/SLB/SLP is a choice of three power packages, a 24-pin plastic DIP with a copper batwing tab (package suffix ‘B’), a 24-lead plastic SOIC with a copper batwing tab (package suffix ‘LB’), and a thin (<1.2 mm) 28-lead plastic TSSOP with an exposed thermal
pad (suffix ‘LP’). In all cases, the power tab is at ground potential and needs no electrical isolation. Each package is available in a leadfree version (100% matte tin leadframe).

* ±3 A, 50 V Output Rating
* Low rDS(on) Outputs (270 mΩ, Typical)
* Mixed, Fast, and Slow Current-Decay Modes
* Synchronous Rectification for Low Power Dissipation
* Internal UVLO and Thermal-Shutdown Circuitry
* Crossover-Current Protection
* Internal Oscillator for Digital PWM Timing


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