Part Number
|
3933 |
Manufacturer
|
Allegro MicroSystems |
Description
|
THREE-PHASE POWER MOSFET CONTROLLER |
Published
|
Mar 30, 2005 |
Detailed Description
|
Data Sheet 26301.100†
3933
RESET PGND AGND GLC DEAD REF SC
THREE-PHASE POWER MOSFET CONTROLLER
The A3933SEQ is a three...
|
Datasheet
|
3933
|
Overview
Data Sheet 26301.
100†
3933
RESET PGND AGND GLC DEAD REF SC
THREE-PHASE POWER MOSFET CONTROLLER
The A3933SEQ is a three-phase MOSFET controller for use with bipolar brushless dc motors.
It drives all n-channel external power FETs, allowing system cost savings and minimizing r(DS)on power loss.
The high-side drive block is implemented with bootstrap capacitors at each output to provide the floating positive supply for the gate drive.
The high-side circuitry also employs a unique “intelligent” FET monitoring circuit that ensures the gate voltages are at the proper levels before turn-on and during the ON cycle.
This device is targeted for applications with motor supplies from 12 V to 28 V.
Int...
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