Datenblatt-pdf.com


NIS5102 Schematic ( PDF Datasheet ) - ON Semiconductor

Teilenummer NIS5102
Beschreibung High Side SMART HotPlug IC/Inrush Limiter/Circuit Breaker
Hersteller ON Semiconductor
Logo ON Semiconductor Logo 




Gesamt 14 Seiten
NIS5102 Datasheet, Funktion
www.DataSheet4U.com
NIS5102
High Side
SMART HotPlugE IC/Inrush
Limiter/Circuit Breaker
The NIS5102 is a controller/FET IC that saves design time and
reduces the number of components required for a complete hot swap
application. It is designed for +12 V applications.
This chip includes a time delay for sequencing applications. It has a
dual function OVLO pin that allows multiple units to be ganged
together for simultaneous turn−on and shutdown, allowing units to be
operated in parallel. It allows for user selectable undervoltage and
overvoltage lockout levels. Its unique current limit circuit allows for
adjustable current limit levels with no external power resistor. An
internal temperature limiting circuit greatly increases the reliability of
this device.
Features
Integrated Power Device
Power Device Thermally Protected
No External Current Shunt Required
Simultaneous Shutdown and Startup for Parallel Operation
Enable/Timer Pin
Power Good
9.0 to 18 V Input Range
10 mW
Main/Mirror MOSFET Current Ratio 1000:1
Pb−Free Packages are Available
Typical Applications
High Availability Systems
Electronic Circuit Breaker
12 V Distributed Architecture
http://onsemi.com
ÎÎÎÎ
MARKING
DIAGRAM
1
5102QPxH
AWLYWWG
9x9 MM, 12 PIN PLLP
CASE 488AB
x = 1 or 2
A = Assembly Location
WL = Wafer Lot
Y = Year
WW = Work Week
G = Pb−Free
PIN CONNECTIONS
12 1
11 2
10 13 3
94
85
76
(Bottom View)
ORDERING INFORMATION
Device
Package
Shipping
NIS5102QP1HT1 9x9 mm 1500/Tape & Reel
(Latchoff)
12 Pin PLLP
NIS5102QP1HT1G 12 Pin PLLP 1500/Tape & Reel
(Latchoff)
(Pb−Free)
NIS5102QP2HT1 9x9 mm 1500/Tape & Reel
(Auto−Retry)
12 Pin PLLP
NIS5102QP2HT1G 12 Pin PLLP 1500/Tape & Reel
(Auto−Retry)
(Pb−Free)
†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, 2006
October, 2006 − Rev. 5
1
Publication Order Number:
NIS5102/D






NIS5102 Datasheet, Funktion
NIS5102
TYPICAL APPLICATION CIRCUITS AND OPERATION WAVEFORMS
(TA = 25°C unless otherwise noted)
ROVLO
VCC
Power Good
Source
RUVLO
Cdelay
OVLO
UVLO
En/Timer
Current
Limit
Gnd Ccharge
RLIMIT
Ccharge
C
DC−DC
Converter
Figure 9. Typical Applications Circuit
Input Voltage
Output Voltage
Output Current
Turn on
Delay
Power Good
Delay
Power
Good
GND
Input Voltage
Input Voltage
Output Voltage
Output Current
Device Reaching
Thermal Limit
Figure 10. Turn−on Waveforms for 3300 mF Load
Capacitors
Figure 11. Turn−on Waveforms for Shorted
Output, Latchoff Device
http://onsemi.com
6

6 Page









NIS5102 pdf, datenblatt
NIS5102
For this equation, Vref is the reference voltage of the
current limit circuit, and RDSon is the on resistance of the
SENSEFET. For more information on this, see application
note AND8140/D, “SMART HotPlugt Current Limit
Function”.
This inherent property of the SENSEFET allows for
simple dual level current limiting, in which a short circuit
condition will see a lower level of limiting than will an
overload. This operation will exist in start up as well as under
normal operation, so the device will be able to differentiate
between a short and an overload.
As with all SMART HotPlug devices, the current limit will
never shutdown the device. Only the thermal limit will stop
the flow of current to the load. Once the current is stopped due
to the thermal limit, it will remain off until input power is
recycled for the latching version, or it will continuously retry
to start again if it is the auto−retry version.
The ILimit graph shown in Figure 5 was generated from
the data of the ILimit characterization, the formula for the
short circuit curve is:
ǒ ǓRILimit (W) +
152.86
ILimit
1.02
for
TJ + 25°C
100
10
where “ILimit” is the desired short circuit ILimit value, and
RILimit is the programming resistor from the ILimit pin to the
source pin.
Turn−on Surge
During the turn−on event, there is a large amount of
energy dissipated due to the linear operation of the power
device. The energy rating is the amount of energy that the
device can absorb before the thermal limit circuit will shut
the unit down. This is very important specially for the latch
off device as it determines the maximum load capacitance
that the device can charge before the thermal limit shuts the
device down. The calculation of this is not very simple as it
depends on several factors such as the input voltage (Vin),
load capacitance (CL), current limit settings (ILimit) and
device’s thermal transient response, therefore, it is
recommended to do lab evaluations for these purposes.
Figure 20 shows the device’s thermal transient response for
minimum pad.
Min Pad
1−in Pad
1
0.1
0.00001
0.0001
0.001
0.01
0.1
1
TIME (seconds)
Figure 20. Thermal Transient Response
10
100 1000
http://onsemi.com
12

12 Page





SeitenGesamt 14 Seiten
PDF Download[ NIS5102 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
NIS5101SMART HotPlug IC/Inrush Limiter/Circuit BreakerON Semiconductor
ON Semiconductor
NIS5102High Side SMART HotPlug IC/Inrush Limiter/Circuit BreakerON Semiconductor
ON Semiconductor

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche