Vicor VI-J00 Family DC-DC Converters and Configurable Power Supplies - Manual (Page 58)

Design Guide & Applications Manual
For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies
VI-200 and VI-J00 Family Design Guide Rev 3.5 vicorpower.com
Page 57 of 98
Apps. Eng. 800 927.9474 800 735.6200
Fusing. The FlatPAC’s internal fuses are not user-replaceable.
Please return the unit to vendor if servicing is necessary.
Grounding. To satisfy IEC950 Class I grounding requirements,
connect a ground lead to the terminal marked
(GND).
For 1-up FlatPAC models (max. output 200 W), use 1.5 mm 2
/ #16 AWG wire; for 2-up and 3-up models (max. output
400 W and 600 W), use 2.5 mm
2 / #14 AWG wire.
Input Voltage Connections. Connect the line voltage
to L1 (hot) and L2N (neutral). For 1-up FlatPAC models
(max. output 200 W), use #16 AWG input wire; for 2-up
and 3-up models (max. output 400 W and 600 W), use #14
AWG input wire. Recommended connector screw torque is
5 to 7 in-lbs (0.5 to 0.8 N-m). Recommended strip length is
8 mm. Use your FlatPAC model only with the correspond ing
input voltages and frequencies shown in the table below.
Output Wire Gauge. Use the output wire gauge that
corre sponds to the output current of your Autoranging
FlatPAC unit, below: Do not loosen bottom nut.
Long cable runs, or wires in large bundles will require
heavier cable to avoid excessive voltage drops or overheating.
Output Voltage Trimming. Do not trim the outputs
higher than 110% of their nominal output voltage. When
an output is trimmed up, do not exceed its maximum
rated output power. (refer to
Section 5 )
Operating Temperature. Do not allow the FlatPAC to
exceed its maximum operating temperature, which is
reached when the heat sink is 85°C. (Full power can be
delivered up to this temperature.) Heat sink temperature is
a function of the output power and voltage of the supply,
ambient temperature, and airflow across the heat sink.
Always use worst-case conditions when calculating
operating temperature.
NOTE 1: To ensure proper heat transfer from the
internal module(s) to the heat sink, the mounting
holes through the heat sink (two, three, and four
holes on 1-up, 2-up, and 3-up models, respectively)
must contain torqued screws at all times during
operation, whether or not the unit is mounted. If the
unit is operated unmounted, insert a #6 or M3.5
panhead screw through each hole from below and
secure with a nut on top, torqued to 6 in-lbs (0.7 N-m).
NOTE 2: All FlatPAC models are available with a
conduction cooled flat plate instead of the top heat
sink. Go to vicorpower.com for outline drawings.
Input / Output Retrofit Connections. A hardware kit,
available from Vicor, allows the input and output
supervisory terminals to be connected in the same manner
as for the earlier style FlatPAC (2-up model only). The
retrofit output terminals are sized to accept AMP Faston
®
insulated receptacle #2-520184-2.
18. AC Input Power System (FlatPAC Family)
T1 – T0 0 0.1 1.0 ms
T3 – T2 0 – – ms Ride-through time
T4 – T2 5 – – ms Hold-up time
T4 – T3 5 – – ms AC fail warning time
Time Interval Min Typ Max Units Notes
Figure 18–3 — Timing diagram – status signals (2-up and 3-up
models only)
V
LINE
> 90 (180)Vac
AC Line
Interrupted
AC
Line
AC-OK
BUS-OK
T0 T1 T2 T3 T4
Conditions: Full Load 90 (180)Vac, AC Line
R1 (K
Ω)
0.953 15.8 22.1 41.2 48.7 90.9 +10%, –10%
R2 (K Ω) 90 90 90 90 90 90 +10%, –10%
Resister Values for Trimming Standard Output Voltages
Nom. Output
5 V 12 V 15 V 24 V 28 V 48 V
Trim
Voltage Range
Figure 18–4 — Output SENSE and TRIM (all models with VI-200s)
R2
10K
R1
+ V
OUT
V
OUT
RTN
+OUT
+SENSE
TRIM
–SENSE
–OUT
NOTE: +SENSE and –SENSE must be connected locally or
remotely (shown).
Load
+
–
Battery
Charger
External
Control
Functions
Programmable Current
or Voltage Source
12 – 48 V
Battery
+
–
+OUT
V
TRIM
I
TRIM
I
MON
–OUT
External
Control
Functions
+OUT
V
TRIM
I
TRIM
I
MON
–OUT
Figure 18–5 — Typical applications (models with BatMods only)
C-Grade VI-xU-Cx 47 – 63 Hz 47 – 63 Hz
I-Grade VI-xU-Ix 47 – 440 Hz 47 – 440 Hz
Product Grade Model 90 – 132 Vac 180 – 264 Vac
100 A – 160 A: #2 AWG 30 A –50 A: #8 AWG 10 A –15 A: #14 AWG
75 A –100 A: #4 AWG 20 A –30 A: #10 AWG 6 A – 10 A: #16 AWG
50 A – 75 A: #6 AWG 15 A –20 A:#12 AWG 0 A – 6 A: #18 AWG