 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
A4992KLPTR-T Datasheet(PDF) 1 Page - Allegro MicroSystems |
|
||||||||||||||||||||||||||||||
A4992KLPTR-T Datasheet(HTML) 1 Page - Allegro MicroSystems |
|
|
1 / 29 page  Description The A4992 is a flexible microstepping motor driver with integrated phase current control and a built-in translator for easy operation. It is a single chip solution designed to operate bipolar stepper motors in full, half, quarter, eighth, and sixteenth step modes, at up to 28 V. At power-on the A4992 is configured to drive most small stepper motors with simple step and direction inputs. The current regulator operates with fixed frequency PWM. It uses adaptive mixed current decay to reduce audible motor noise and increase step accuracy. The current in each phase of the motor is controlled through a DMOS full bridge using synchronous rectification to improve power dissipation. Internal circuits and timers prevent cross- conduction and shoot-through when switching between high-side and low-side drives. The outputs are protected from short circuits. Features for low load current and stalled rotor detection are included. Chip level protection includes hot thermal warning, overtemperature shutdown, and overvoltage and undervoltage lockout. An optional serial interface mode, using the STEP, DIR, and MS inputs, can be used to configure several motor control parameters and diagnostics. TheA4992 is supplied in a 20-pin TSSOP power package with an exposed thermal pad (package type LP). This package is lead (Pb) free with 100% matte-tin lead frame plating. A4992-DS, Rev. 1 Features and Benefits • Low RDS(on) outputs, 0.5 Ω source and sink typical • Continuous operation at high ambient temperature • 3.5 to 50 V supply operation • Adaptive mixed current decay • Synchronous rectification for low power dissipation • Internal overvoltage and undervoltage lockout • Hot warning and overtemperature shutdown • Crossover-current protection • Short circuit and open load diagnostics • Stall detect features • Configurable through serial interface Automotive Stepper Driver Package: 20-pin TSSOP with exposed thermal pad (suffix LP) Typical Application Diagram Not to scale A4992 Automotive 12 V Power Net Logic Supply Micro- controller or ECU OAP PGND OAM OBP OBM Stepper Motor AGND STEP DIR MS RESETn DIAG SENSA SENSB REF CP1 CP2 VCP VBB VREG A4992 Applications: • Automotive stepper motors • Engine management • Headlamp positioning |
Similar Part No. - A4992KLPTR-T |
|
Similar Description - A4992KLPTR-T |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
