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  ON Semiconductor Electronic Components Datasheet  

NIS5431MT1TXG Datasheet

+3.3 Volt Electronic Fuse

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NIS5431MT1TXG pdf
NIS5431 Series
+3.3 Volt Electronic Fuse
The NIS5431 series is a cost effective, resettable fuse which can
greatly enhance the reliability of a hard drive or other circuit from both
catastrophic and shutdown failures.
It is designed to buffer the load device from excessive input voltage
which can damage sensitive circuits. It also includes an overvoltage
clamp circuit that limits the output voltage during transients but does
not shut the unit down, thereby allowing the load circuit to continue
operation.
Features
Integrated Power Device
Power Device Thermally Protected
No External Current Shunt Required
45 mW Typical
Internal Charge Pump
Internal Undervoltage Lockout Circuit
Internal Overvoltage Clamp
ESD Ratings: Human Body Model (HBM); 2000 V
Machine Model (MM); 200 V
These are Pb−Free Devices and are RoHS Compliant
Typical Applications
Mother Board
Hard Drives
Fan Drives
www.onsemi.com
4.5 AMP, 3.3 VOLT
ELECTRONIC FUSE
WDFN10
CASE 522AA
MARKING DIAGRAM
1
31
AYWG
G
Pin
1−5
6
7
8
9
10
11 (flag)
Function
SOURCE
ILIMIT+
ILIMIT−
Enable/Fault
dv/dt
GND
VCC
31 = Specific Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Features
Package
Shipping
NIS5431MT1TXG
Thermal Latching
Vclamp = 3.85 V, ILIM = 1.6 A @ 10 W
WDFN10
(Pb−Free)
3000 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2015
June, 2015 − Rev. 0
1
Publication Order Number:
NIS5431/D


  ON Semiconductor Electronic Components Datasheet  

NIS5431MT1TXG Datasheet

+3.3 Volt Electronic Fuse

No Preview Available !

NIS5431MT1TXG pdf
ENABLE/
FAULT
Enable
Thermal
Shutdown
NIS5431 Series
VCC
Charge
Pump
Current
Limit
SOURCE
ILIMIT
UVLO
Voltage
Clamp
dv/dt
Control
dv/dt
Figure 1. Block Diagram
Table 1. FUNCTIONAL PIN DESCRIPTION
GND
Pin Function
Description
1−5
Source
This pin is the source of the internal power FET and the output terminal of the fuse.
7
ILimit
A resistor between this pin and the source pin sets the overload and short circuit current limit
levels.
8 Enable/Fault The enable/fault pin is a tri−state, bidirectional interface. It can be used to enable or disable the
output of the device by pulling it to ground using an open drain or open collector device. If a ther-
mal fault occurs, the voltage on this pin will go to an intermediate state to signal a monitoring cir-
cuit that the device is in thermal shutdown. It can also be connected to another device in this fami-
ly to cause a simultaneous shutdown during thermal events.
9
dv/dt
The internal dv/dt circuit controls the slew rate of the output voltage at turn on. It has an internal
capacitor that allows it to ramp up over a period of 1.4 ms. An external capacitor can be added to
this pin to increase the ramp time. If an additional time delay is not required, this pin should be left
open.
10
Ground
Negative input voltage to the device. This is used as the internal reference for the IC.
11 (belly pad)
VCC Positive input voltage to the device.
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Input Voltage, operating, steady−state (VCC to GND, Note 1)
Thermal Resistance, Junction−to−Air
0.1 in2 copper (Note 2)
0.5 in2 copper (Note 2)
VIN
−0.6 to 12
V
qJA °C/W
227
95
Thermal Resistance, Junction−to−Lead (Pin 1)
Thermal Resistance, Junction−to−Case
Total Power Dissipation @ TA = 25°C
Derate above 25°C
qJL
qJC
Pmax
27 °C/W
20 °C/W
1.3 W
10.4 mW/°C
Operating Temperature Range (Note 3)
TJ
−40 to 150
°C
Nonoperating Temperature Range
TJ
−55 to 155
°C
Lead Temperature, Soldering (10 Sec)
TL 260 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Negative voltage will not damage device provided that the power dissipation is limited to the rated allowable power for the device.
2. 1 oz copper, double−sided FR4.
3. Thermal limit is set above the maximum thermal rating. It is not recommended to operate this device at temperatures greater than the
maximum ratings for extended periods of time.
www.onsemi.com
2


Part Number NIS5431MT1TXG
Description +3.3 Volt Electronic Fuse
Maker ON Semiconductor
Total Page 7 Pages
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