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3938 Datasheet, Allegro MicroSystems

3938 controller equivalent, three phase power mosfet controller.

3938 Avg. rating / M : 1.0 rating-12

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3938 Datasheet

Features and benefits

includes bootstrap capacitor charging current monitor, regulator under-voltage monitor, motor lead short-to-ground, and thermal shutdown. The A3938 is available in a cho.

Application

VBB must be shorted to VREG. For this condition, the absolute max rating of 15V on VREG must be maintained to prevent d.

Description

RESET. A logic input that enables the device. Has internal 50K pull-up to LCAP. RESET=1 will coast or brake the motor depending on the state of the BRKSEL pin. RESET=0 will enable gate drive to follow commutation logic. RESET = 1 will override the .

Image gallery

3938 Page 1 3938 Page 2 3938 Page 3

TAGS

3938
THREE
PHASE
POWER
MOSFET
CONTROLLER
Allegro MicroSystems

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