Allegro MicroSystems, LLC A3906SESTR-T
- Part Number:
- A3906SESTR-T
- Manufacturer:
- Allegro MicroSystems, LLC
- Ventron No:
- 3260727-A3906SESTR-T
- Description:
- IC MOTOR DRIVER PAR 20QFN
- ECAD Model:
-
- Datasheet:
- A3906SESTR-T
Description
The A3906 is a low-voltage stepper and single/dual DC motor driver designed for pulse width modulated (PWM) control. It operates at voltages from 2.5 to 9 V and can output currents up to 1 A per channel. The A3906 features an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor. An overcurrent output flag notifies the user when the current in the motor winding reaches the peak current determined by the sense resistor. The A3906 is available in a 20-contact, 4 mm × 4 mm, 0.75 mm nominal overall height QFN package with exposed pad for enhanced thermal dissipation.
Features
2.5 to 9 V operation
Internal PWM current limit control
Synchronous rectification for reduced power dissipation
Peak current output flag
Undervoltage lockout
Low RDS(ON) outputs
Small package
Brake mode for DC motors
Sleep function
Crossover-current protection
Thermal shutdown
Applications
Digital still cameras (DSC)
Cell phone cameras
USB powered devices
Battery powered devices
The A3906 is a low-voltage stepper and single/dual DC motor driver designed for pulse width modulated (PWM) control. It operates at voltages from 2.5 to 9 V and can output currents up to 1 A per channel. The A3906 features an internal fixed off-time PWM timer that sets a peak current based on the selection of a current sense resistor. An overcurrent output flag notifies the user when the current in the motor winding reaches the peak current determined by the sense resistor. The A3906 is available in a 20-contact, 4 mm × 4 mm, 0.75 mm nominal overall height QFN package with exposed pad for enhanced thermal dissipation.
Features
2.5 to 9 V operation
Internal PWM current limit control
Synchronous rectification for reduced power dissipation
Peak current output flag
Undervoltage lockout
Low RDS(ON) outputs
Small package
Brake mode for DC motors
Sleep function
Crossover-current protection
Thermal shutdown
Applications
Digital still cameras (DSC)
Cell phone cameras
USB powered devices
Battery powered devices
Allegro MicroSystems, LLC A3906SESTR-T technical specifications, attributes, parameters and parts with similar specifications to Allegro MicroSystems, LLC A3906SESTR-T.
- Factory Lead Time8 Weeks
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / Case20-WFQFN Exposed Pad
- Number of Pins20
- Operating Temperature-20°C~150°C TJ
- PackagingTape & Reel (TR)
- Published2005
- JESD-609 Codee3
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)2 (1 Year)
- Number of Terminations20
- TerminationSMD/SMT
- ECCN CodeEAR99
- Terminal FinishMatte Tin (Sn)
- ApplicationsBattery Powered
- SubcategoryMotion Control Electronics
- TechnologyDMOS
- Voltage - Supply2.5V~9V
- Terminal PositionQUAD
- Peak Reflow Temperature (Cel)260
- Supply Voltage3V
- Terminal Pitch0.5mm
- Reflow Temperature-Max (s)40
- Base Part NumberA3906
- FunctionDriver - Fully Integrated, Control and Power Stage
- Output Voltage9V
- Supply Voltage-Max (Vsup)9V
- Number of Channels2
- InterfaceParallel
- Output ConfigurationHalf Bridge (4)
- Output Current-Max1.5A
- Collector Emitter Voltage (VCEO)9V
- Max Collector Current1A
- Voltage - Load2.5V~9V
- Motor TypeStepper
- Motor Type - AC, DCBrushed DC
- Motor Type - StepperBipolar
- Step Resolution1, 1/2
- Height750μm
- Length4mm
- Width4mm
- Radiation HardeningNo
- REACH SVHCNo SVHC
- RoHS StatusROHS3 Compliant
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