NIS5101
Inrush Limiter/Circuit
Breaker
The NIS5101 combines the control function and power FET into a
single IC that saves design time and reduces the number of
components required for a complete hot swap application. It is
designed to allow safe insertion and removal of electronic equipment
to −48 V backplanes. This chip features simplicity of use combined
with an integrated solution.
The NIS5101 includes user selectable undervoltage and
overvoltage lockout levels. It also has adjustable current limiting that
can be reduced from the maximum level with a single resistor.
Operation at the maximum current level requires no extra external
components. An internal temperature shutdown circuit greatly
increases the reliability of this device.
Features
• Integrated Power Device
• 100 V Operation
• Thermal Limit Protection
• Adjustable Current Limit
• No External Current Shunt Required
• Undervoltage and Overvoltage Lockouts
• 6.5 A Continuous Operation
• UIS Rated
• Main/Mirror MOSFET Current Ratio 820:1
• Pb−Free Packages are Available
Typical Applications
• VoIP (Voice over Internet Protocol) Servers
• −48 V Telecom Systems
• +24 V Wireless Base Station Power
• Central Office Switching
• Electronic Circuit Breaker
7 Input +
Voltage
Regulator
6
UVLO/
ENABLE
Undervoltage
Lockout
5
OVLO
Overvoltage
Shutdown
Thermal
Shutdown
Current
Limit
Figure 1. Block Diagram
4, 8
Drain
3
Current
Limit
Input −
1, 2
http://onsemi.com
MARKING
DIAGRAM
8
S−PAK
NIS5101EX
1
EX SUFFIX
AYWWG
CASE 553AA
7
X = 1 for Thermal Latch or
2 for Thermal Auto−retry
A = Assembly Location
Y = Year
WW = Work Week
G = Pb−Free Device
ORDERING INFORMATION
Device
NIS5101E1T1
Package
S−PAK
Latch Off
Shipping†
2000 Units/Reel
NIS5101E1T1G
NIS5101E2T1
S−PAK
Latch Off
(Pb−Free)
S−PAK
Auto−Retry
2000 Units/Reel
2000 Units/Reel
NIS5101E2T1G
S−PAK
Auto−Retry
(Pb−Free)
2000 Units/Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2011
1
August, 2011 − Rev. 23
Publication Order Number:
NIS5101/D