ISL6142/52EVAL1 Intersil, ISL6142/52EVAL1 Datasheet - Page 4

• Manufacturer Part Number: ISL6142/52EVAL1
• Description: EVAL BOARD W/CURRENT MONITOR
• Manufacturer: Intersil

Specifications of ISL6142/52EVAL1

• Main Purpose: Power Management, Hot Swap Controller
• Utilized Ic / Part: ISL6142, 6152
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

• Footprints for DRAIN protection diodes (channel B). Board
• Footprint for over voltage clamping suppressor (channel
• Option for green LED for Power Good OK (ISL6142 only)
• Alternate 0.020Ω sense resistor included for higher Over-
• Output load terminals (posts) for modifying load
LOAD Board (R and C Loads; Fig 8)
• Edge connector pins plug into Control board
• Typical load current is <100mA (limited by power
• Two load resistors per channel create approximately
• Switches to connect the loads in and out
• Multiple holes for soldering wires, pins, posts, for external
• Holes for optional load capacitors
• Power Good signal (PWRGD/PWRGD) from each channel
• LED Channel “ON” indication
Operating Instructions
-48V Hook-Up
1. One -48V power supply (0.5A total, 0.25A/channel) and
is shipped with a zero ohm resistor in the D2B place
holder.
B)
Current threshold setting
characteristics. TPLD1A and TPLD1B connect to ground,
TPLD2A and TPLD2B connect to -V
respective channels.
dissipation of the load resistors); Over-Current trip point is
~185mA.
85mA, 160mA or 240mA (resistors in parallel for Over-
Current condition) load currents
output load connections (brick regulators are too big and
varied to include on the board).
brought over through edge connector (TPPGA/TPPGB)
one +5V supply are needed to fully exercise all functions
of the device. The user should be sure the +5V supply is
referenced to -V
+5V supply (PS2) should be connected to the +5VA and
+5VB test pins of each channel. The two channels can
share the same negative supply (-V
from independent supplies if desired, but they share the
same ground plane on each board (bottom). No special
power-up or power-down sequencing is required. If only
one channel is being tested, the other can be left
unconnected. The following instructions are the same for
both channels. As shown in Fig. 3, A1 is an optional
ammeter to measure current; V1 is a Voltmeter to
measure power supply voltage, and V2 is a voltmeter to
look at other signals. Note that the voltmeters are
referenced to the negative supply rail.
IN
to avoid damaging the IC. The external
4
OUT
IN,
PS1) or operate
of their
NOTE: If the user substitutes higher current external loads, the
power supply capability would need to be increased accordingly.
Functional Tests
2. Begin with all the supplies off.
3. Connect the gray wire to GND (or most positive voltage);
4. Plug the 3 boards together; from left to right, should be
5. Make sure SW2A/SW2B is switched in the “UP” position
6. Check to make sure the +5V supply is referenced to -V
7. Turn on the supplies (-48V and +5V). The FETs should
1. A simple check for UV (Under-Voltage) and OV (Over-
2. Switch on Loads: At -48V, SW11 by itself will produce
connect the -VINA (violet) and -VINB (blue) wire(s) to the
most negative supply voltage (typically -48V), connect
PS2 to +5VA and +5VB.
the BUS, CONTROL, and LOAD boards (those labels
should be upright, facing the user). Set the switches on
the LOAD board to the “No Load” position (up).
which ties the DIS pin to -V
on when the UVLO/UV/OV conditions are satisfied.
turn on, switching the -V
and B ON LED(s) on the LOAD board should be on.
Power supply current (if monitored) should be about 5mA
per channel.
Voltage) can be done, with a variable power supply.
Increasing the -V
the OV comparator turning off both the external FET and
the load board “ON” LED until the voltage is lowered to
about -55V. When the OV or UV threshold is exceeded,
the power good LED fault indicator (D5B) will light up
indicating the power supply is outside its operating range
or a fault is present. Note that the FAULT pin will not
transition low in this case as the fault status pin and the
associated LED (D6A/D6B) only flag Over-Current Time-
Out events. The UV threshold and hysteresis can be
checked by reducing the -V
40V. This triggers the UV comparator which turns off the
external FET and lights up LED D5B. The power good
Fault LED (D5A) is not compatible with the ISL6152; it will
always be on as long as the input power supply is on.
That is why the jumper is disconnected.
~80mA of current; SW12 by itself should give ~160mA of
current. With both loads switched in (parallel) the load
current will be in the 240mA range, and exceed the Over-
-48V
+5V
FIGURE 3. SUPPLY AND METER HOOK UP
PS2
PS1
+
+
-
-
+5VA
To
IN
A1
To GND (gray)
supply from -48V to -56V will trigger
+
IN
-
+5VB
IN
voltages to -V
IN
To
V1
and allows the FET to turn
voltage to approximately -
To -VINA
(violet)
OUT
V2
; the A ON
To -VINB
(V2)
(blue)
+
-
IN
.