© Semiconductor Components Industries, LLC, 2015
April, 2015 − Rev. 2
NIS54xxGEVB
NIS54xx Evaluation
Board User’s Manual
eFuse test board with multiple
subcircuits for evaluation of
overvoltage protection,
overcurrent protection,
controlled slew rate, and
thermal shutdown features
Introduction
Engineers developing a varied array of systems
utilize sophisticated integrated eFuses to serve a
variety of purposes. They may be found connected to
3.3, 5, and 12 V power rails and have many
interesting features.
The primary features of eFuses are:
Overvoltage clamping
Adjustable current limiting
Enable/Fault control
Thermal shutdown
Controllable slew rate
Figure 1: The NIS545xGEVB evaluation
board
EVAL BOARD USER’S MANUAL
This evaluation board has many features which
make it simple to observe the functionality and
performance of the new NIS54xx line of eFuses:
Multiple connectors available for all eFuse
pins (VCC, GND, enable, ILIM, dv/dt)
Input and output capacitors
A pushbutton switch and a MOSFET
connect the enable pin to GND or float it as
needed
Green and yellow LEDs to indicate whether
the eFuse enable pin voltage is high (device
enabled) or low (device disabled)
Three current limit resistor options available
directly on the board (10, 18, 50 Ω)
Two load resistor options (5 and 10 Ω) on
the board
A pushbutton switch to short circuit the
load, featuring an indicator LED which is on
when the output voltage is high during
normal operation
An easy means of connecting an external
copper heat sink for thermal evaluation
Kelvin or direct sensing options via the
jumper between pin 1 and 2 for the NIS54xx
