55 Watt K Triple Series DC/DC Converters
Features
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Description
The 55 Watt Triple Series consists of separate power sections
for the single and dual outputs. These power sections are
operated in anti-phase to each other to reduce the ripple
current stress on the input components and the reflected input
ripple. The main benefit of two separate power sections is the
excellent regulation achieved by all outputs. An order of
magnitude regulation improvement is obtained over
competitive designs. There is no cross regulation between +5
output and the dual outputs. This means that the dual output
voltages are independent of the +5 Volt loading and visa
versa.
Excellent noise performance is attained by using a 0.040
inch thick aluminum case, pot core and toroidal magnetics,
double shielded transformers and both normal mode and
common mode input filtering.
The input and outputs are protected from overvoltage by
transient voltage suppressor diodes. The outputs are protected
from faults with pulse by pulse digital current limiting.
Very Low Noise, < 50 mV P-P Maximum
PCB Mounting with Optional Heat Sink or
Chassis Mount Versions
Efficiencies to 87%
Common and Differential Mode Input Filtering
Remote Sense On +5 Volt Output
Single and Dual Outputs are Isolated From
Each Other
No derating to 80擄C Case Temperature
Five Year Warranty
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Selection Chart
Model
12T5.12K
12T5.15K
24T5.12K
24T5.15K
48T5.12K
48T5.15K
Input Range
VDC
Min
Max
9.0
9.0
18.0
18.0
36.0
36.0
18.0
18.0
36.0
36.0
72.0
72.0
Outputs
VDC
5, 鹵12
5, 鹵15
5, 鹵12
5, 鹵15
5, 鹵12
5, 鹵15
Outputs
mA
5000, 鹵1250
5000, 鹵1000
5000, 鹵1250
5000, 鹵1000
5000, 鹵1250
5000, 鹵1000
55 Watt Triple Series Block Diagram
DOUBLE SHIELDED
ISOLATION TRANSFORMER
THERMAL SHUTDOWN
SINGLE SECTION
10 +5V OUTPUT
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+ INPUT 4
+ INPUT 5
COMMON &
DIFFERENTIAL
MODE INPUT
FILTER
ANTI-PHASE
DUAL PWM
CONTROLLER
ISOLATION
BARRIER
9 +5 CMN
11 +5V SENSE
8 +5V CMN SENSE
14 +DUAL OUTPUT
13 DUAL CMN
- INPUT 2
- INPUT 3
ON/OFF 6
1.5M || 0.01碌F
CASE 7
SHIELDED, LOW THERMAL GRADIENT
ALUMINUM CASE
12 -DUAL OUTPUT
DUAL SECTION
Manufacturing Company, Inc.
鈥?Concord, California 94520 鈥?Ph: 925/687-4411 or 800/542-3355 鈥?Fax: 925/687-3333 鈥?www.calex.com 鈥?Email: sales@calex.com
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