A - S E R I E S
Dual Output
A-Series, BWR Models
High-Reliability, 2" x 2"
15-20 Watt, DC/DC Converters
For full details go to
www.cd4power.com/rohs
For your mid-range power requirements, it’s hard to beat the combination of low
cost, proven reliability and outstanding electrical performance offered by the
15-20W, dual-output models of C&D’s new A-Series DC/DC converters. These
highly efficient, rugged converters combine straightforward circuit topologies, the
newest components, proven SMT-on-pcb construction methods, and highly repeat-
able automatic-assembly techniques. Their superior durability is substantiated by a
rigorous in-house qualification program that includes HALT (Highly Accelerated Life
Testing).
The ultra-wide input voltage ranges of the A-Series duals (4.7-7.5V for "D5A"
models, 9-36V for "D12A" models and 18-75V for "D48A" models) make them excel-
lent candidates for battery-powered systems or for distributed power architectures.
Their 5, 12 or 15 Volt outputs cover virtually all standard applications.
These popular power converters are fully isolated (1500Vdc guaranteed) and
display excellent line and load regulation (with specs as low as 0.3ꢀ max. for
line and 0.5ꢀ max. for load). They are completely I/O protected (input overvoltage
shutdown and reverse-polarity protection, output current limiting and overvoltage
protection) and contain input (pi type) and output filtering to reduce noise. They
require no external components and offer true "plug-and-play" convenience.
These extremely reliable, cost-effective power converters are housed in standard
2" x 2" x 0.45" metal packages coated with electrically non-conductive materials.
They offer industry-standard pinouts and are ideally suited for high-volume com-
puter, telecom/datacom, instrumentation and ATE applications.
Features
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Low cost! Highly reliable!
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Proven SMT-on-pcb construction
Qual tested; HALT tested; EMC tested
Designed to meet UL/ EN60950,
BASIC insulation (48VIN models)
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mark available (48VIN models)
Output voltages: 5, 1ꢀ or 15 Volts
Ultra-wide input voltage ranges:
4.7-7.5V, 9-36V or 18-75V
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Small packages, ꢀ" x ꢀ" x 0.45"
Industry-standard pinouts
Fully isolated, 1500Vdc guaranteed
Guaranteed efficiencies to 8ꢀ%
–40 to +100°C operating temperature
Modifications and customs for OEM’s
+VIN
(1)
+VOUT
(5)
COMMON
(6)
–VOUT
(7)
–VIN
(2)
ON/OFF
CONTROL
(4)
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
TRIM
(8)
Figure 1. Simplified Schematic
Typical topology is shown.
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