AP91352 Datasheet, PDF (1/12 Pages) Diodes Incorporated – SAS DISABLE plus 5V eFUSE WITH INTEGRATED ISOFET

AP91352
SAS DISABLE +5V eFUSE WITH INTEGRATED ISOFET
Description
The eFuse is a 5V protection device with a bidirectional switch that
incorporates input slew rate control to reduce input surge current and
reverse current detection to prevent discharge to VCC from VOUT.
The eFuse protection features include under voltage lockout, a fixed
2.5A current limit, trimmed fast response over voltage protection and
thermal shutdown. The EN/FAULT line is a tri-state bidirectional
interface that can be used to disable the output by pulling the line low
through an external open drain device. If a thermal fault occurs, the
voltage on the pin will go to an intermediate voltage indicating a fault
and it can be connected to another device to cause simultaneous shut
down. The SAS pin is an ESD protected interface that allows direct
external control of the eFuse. Driving the SAS pin high pulls the
enable line low causing the eFuse to shutdown and enter a low
quiescent current state.
The integrated Isofet latches off when the reverse current is detected.
This can be reset only by triggering the under voltage lock out, by
EN/FAULT pin or when voltage on the output pin (VOUT) falls below
the supply pin voltage (VCC) in AP91352.
The AP91352 is available in a standard Green W-QFN3020-12
package and is RoHS compliant.
Features
 SAS Disable
 2.1V Signal Disables the eFuse
 ESD Compliant to1kV HBM and 500V CDM
 Integrated Isofet that latches off when reverse current is
detected. Latch off is reset by
 SAS pin
 UVLO Trigger
 EN/FAULT Pin
 Input Tolerant of Continuous 12V
 50m Typical Total on Resistance
 Fixed 2.5A Over Current Protection (OCP)
 Over Voltage Protection (OVP)
 Trimmed 5.5V to 6.0V Fast Response
 50µs Latch off
 Fixed 13ms ±20% Slew Rate Control (SRC)
 Over Temperature Protection (OTP)
 Under Voltage Lockout (UVLO)
 Thermally Efficient Low Profile Package, W-QFN3020-12
 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
(Top View)
GND
VCC ¹
VCC 2
VCC 3
SAS 4
12
11 _VOUT
10 VOUT
13
9 VOUT
8 NC
EN/FAULT 5
7 NC
6
NC
W-QFN3020-12
Applications
 HHD Drives
 SSD Drives
 Mother Board Power Management
 Printer Load Power Management
 Fan Drives
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AP91352
Document number: DS38109 Rev. 1 - 2
1 of 12
www.diodes.com
October 2015
© Diodes Incorporated