
18
Tyco Electronics Corp.
Data Sheet
April 2003
3.3 Vdc and 5.0 Vdc Input, 1.5 Vdc - 3.3 Vdc Output, 6A
Austin Series Non-Isolated SMT DC - DC Power Modules:
Parallel Operation
Up to five Austin Power Modules may be paralleled for extra output current needs. For N units operating in parallel,
the output current rating will be equal to 6+(N-1)*4. For example, three modules can deliver 14 amps. For parallel
operation, connect each control pin together. Care should be taken to make each module see the same approxi-
mate trace resistance to the load. In most cases, this requires that all converters be close together. Thermal derat-
ing can be approximated for parallel units by using the average current plus 1 amp for an individual module. For
example, if three modules are carrying 12 amps, there is an average current of 3 amps so the derating curve at 4
amps would be used. Input and output decoupling should be scaled with the number of modules paralleled. If par-
alleled modules are to be trimmed using the control pin, divide the calculated trim resistance for a single unit by the
number of modules paralleled. For example, if two paralleled units are to be trimmed 5% low, then a resistance of
146K divided by 2 should be used.
Mechanical Specifications
Table 4.
Figure 62. Detailed Drawing of Product ID Label
The input to these units is to be provided with a maximum 10A normal blow fuse in the ungrounded lead.
Parameter
Symbol
Min
Typical
Max
Unit
Physical Size
*Dimensions listed are typical, with a tolerance of +/-
0.01 inches
L
W
H
—
*44.6 (1.756)
12.7 (0.5)
5.46 (0.215)
—
mm (in.)
Weight
——
4.0
—
grams (oz.)
Module I/O, Connector Coplanarity
——
—
4 (.158)
mm (in.)
Interconnecting
Low-inductance surface-mount connector
Labeling
The label spans the magnetic component and contains the following:
s
Line A: Device code
s
Line B: Tyco Product code
s
Line C: Six-digit lot number
s
Line D: The circuit serial number within the lot, which can be either a
four-digit number or a barcode.
Shock
Method: MIL-STD-202F, method 213B, individual mounted units, 50 G,
V2 sine, 6 ms; twice for each orthogonal axis
ion
Method: TR-EOP-000063, Sec. 5.4.4, individual mounted units, 5 to 50
Hz sweep @ 0.5 G, 50 to 500 Hz sweep @ 1.5 G; vibration introduced
in all 3 orthogonal axes
A. a. b. c
TYCO CC
LOT #
A. 1. 5. 0
108468349
000008
.34
.44
.085 TXT
085 TXT
.095 TXT
(A)
(B)
(C)
(D)
A = AUSTIN
a = PRODUCT ID NUMBER:
1 = 3.3 vIN / 1.5 vOUT
2 = 3.3 vIN / 1.8 vOUT
3 = 3.3 vIN / 2.0 vOUT
4 = 3.3 vIN / 2.5 vOUT
5 = 5.0 vIN / 1.5 vOUT
6 = 5.0 vIN / 1.8 vOUT
7 = 5.0 vIN / 2.0 vOUT
8 = 5.0 vIN / 2.5 vOUT
9 = 5.0 vIN / 3.3 vOUT
b = REVISION NUMBER (Customer Effecting Change)
c = ISSUE NUMBER (Non-Customer Effecting Change)
GENERAL NOTES
(A) PART DESCRIPTION: A.a.b.c
(B) TYCO COMCODE
(C) LOT NUMBER
(D) SERIAL NUMBER:
P = PANEL NUMBER (01-20)
M = MODULE NUMBER (01-78)
PPMM
GENERIC LABEL
0178
R.0625