A - S E R I E S
Dual Output
A-Series, BWR Models
High-Reliability, 1" x 2"
15-17 Watt, DC/DC Converters
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For your mid-range power requirements, it’s hard to beat the combination of
small packaging, low cost, proven reliability and outstanding electrical performance
offered by the 15-17W, dual-output models of C&D’s A-Series DC/DC converters.
These highly efficient, rugged converters combine straightforward circuit topolo-
gies, the newest components, proven SMT-on-pcb construction methods, and highly
repeatable automatic-assembly techniques. Their superior durability is substantiated
by a rigorous in-house qualification program that includes HALT (Highly Accelerated
Life Testing).
The input voltage ranges of the BWR 15-17 Bipolar Series (10-18V for "D12A"
models, 18-36V for "D24A" models and 36-75V for "D48A" models) make them
excellent candidates for telecommunication system line drivers, or distributed power
architectures. Their 5, 12 or 15 Volt outputs cover virtually all standard applica-
tions.
These popular power converters are fully isolated (1500Vdc guaranteed) and
display excellent line and load regulation ( 0.5ꢀ max. for line and load). They are
completely I/O protected (input overvoltage shutdown and reverse-polarity protec-
tion, output current limiting and overvoltage protection) and contain input (pi type)
and output filtering to reduce noise.
These extremely reliable, cost-effective power converters are housed in standard
1" x 2" x 0.48" UL94V-0 rated plastic packages. They offer industry-standard pinouts
and are ideally suited for high-volume computer, telecom/datacom, instrumentation
and ATE applications.
Features
Output voltages: ±±5 ±1ꢀ or ±1± Volts
Input voltage ranges:
10-18V5 18-36V or 36-7±V
Small packages5 1" x ꢀ" x 0.48"
Industry-standard pinouts
Low cost; Highly reliable
Proven SMT-on-pcb construction
Qual tested; HALT tested; EMC tested
IEC/EN/UL609±0 certified
mark available (7±V-input models)
Fully isolated5 1±00Vdc guaranteed
Efficiencies to 86%
–40 to +100°C operating temperature
Thermal protection
ꢀ
On/Off control
+OUTPUT
(4)
+INPUT
(1)
COMMON
(5)
–OUTPUT
(6)
–INPUT
(2)
ON/OFF
CONTROL
(OPTION)
(3)
OPTO
ISOLATION
PWM
CONTROLLER
REFERENCE &
ERROR AMP
Figure 1. Simplified Schematic
Typical topology is shown
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