ACS760ELF-20B View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
'ACS760ELF-20B' PDF : 15 Pages View PDF
ACS760ELF-20B 12 V High-Side Hot-Swap Hall Effect Based Current Monitor
Application Information: Current Mode Operation
The ACS760 has the ability to operate in pure Current Mode.
If the Allegro ACS760 detects power in excess of 240 V*A,
the FAULT output of the device transitions from a logic high to
a logic low level and the integrated gate driver circuitry pulls
the gate of an external MOSFET to GND. The delay between
the detection of an excess power condition and gate shutdown
is set by an external capacitor on the OPDLY pin to GND. The
ACS760, however, has the ability to override the Power Mode
fault condition to operate in pure Current Mode.
Pulling the OPDLY pin to GND, disables the 240 V*A power
fault to allow the ACS760 to operate in pure Current Mode. The
user may then set the current fault threshold by adjusting the
resistor value from the ISET pin to GND. If the current exceeds
the set threshold, the FAULT output of the device trips and
the gate of the external MOSFET is pulled to GND. The delay
between the detection of a soft short circuit condition and gate
shutdown is set by the capacitor on the OCDLY pin. In Current
Mode Operation, the ACS760 has the ability to detect a S1 Short
and Hard Short.
Allegro MicroSystems, Inc.
14
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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