DataSheetWiki


A3906 fiches techniques PDF

Allegro MicroSystems - Low Voltage Stepper and Single/Dual DC Motor Driver

Numéro de référence A3906
Description Low Voltage Stepper and Single/Dual DC Motor Driver
Fabricant Allegro MicroSystems 
Logo Allegro MicroSystems 





1 Page

No Preview Available !





A3906 fiche technique
A3906
Low Voltage Stepper and Single/Dual DC Motor Driver
Features and Benefits
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
Package: 20-contact QFN (suffix ES)
Approximate size
Description
Designed for pulse width modulated (PWM) control of low
voltage stepper motors, and single and dual DC motors, the
A3906 is capable of output currents up to 1 A per channel and
operating voltages from 2.5 to 9 V.
The A3906 has 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 is provided that notifies
the user when the current in the motor winding reaches the
peak current determined by the sense resistor. The fault output
does not affect driver operation.
TheA3906 is provided in a 20-contact, 4 mm × 4 mm, 0.75 mm
nominal overall height QFN, with exposed pad for enhanced
thermal dissipation. It is lead (Pb) free, with 100% matte tin
leadframe plating.
Applications include the following:
Digital still cameras (DSC)
Cell phone cameras
USB powered devices
Battery powered devices
Typical Applications
+5 V
0.1 μF
0.1 μF
CP1 CP2 CP3 CP4
VCP
SLEEP
IN1
IN2
IN3
IN4
A3906
VBB
OUT1A
OUT1B
SENSE1
OUT2A
FL1
FL2 OUT2B
GND
SENSE2
0.1 μF
10 μF
10 V
M
M
+5 V
0.1 μF
0.1 μF
CP1 CP2 CP3 CP4
VCP
SLEEP
IN1
IN2
IN3
IN4
A3906
VBB
OUT1A
OUT1B
SENSE1
OUT2A
FL1 OUT2B
FL2 SENSE2
GND
0.1 μF
10 μF
10 V
M
Dual DC motor application
3906-DS, Rev. 4
Stepper motor application

PagesPages 10
Télécharger [ A3906 ]


Fiche technique recommandé

No Description détaillée Fabricant
A390 SILICON RECTIFIER Powerex Power Semiconductors
Powerex Power Semiconductors
A3901 Dual Full Bridge Low Voltage Motor Driver Allegro
Allegro
A3903 Low Voltage DC Motor Driver Allegro Micro Systems
Allegro Micro Systems
A3904 Low Voltage Voice Coil Motor Driver Allegro MicroSystems
Allegro MicroSystems

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche