OUTPUT SPECIFICATIONS
Line regulation HL to LL, A series ±0.07%, max.
FL to NL, F series ±0.1%, max
Load regulation FL-NL, all outputs ±0.07%
Cross regulation Voltage balance, duals ±1.0%, max
Ripple and noise 5Hz to 20MHz 40mV pk-pk, max.
1mV rms, max.
Transient response FL to NL ±0.1% max. dev.,
50µs recovery
Temperature coefficient ±0.01%/°C, max.
Short circuit protection Output to common 150% Iout
INPUT SPECIFICATIONS
Input voltage range Nominal 5VDC 4.75 to 5.25VDC
Nominal 48V 42.0 to 56.0VDC
Input filter See Note 5 Pi network
Recommended for new design-ins
A SERIES
Dual output
[ 2 YEAR WARRANTY ]
• Low noise
• Linear regulation
• Six sided shield
• Pi input filter
• Short circuit protected
• High Isolation
• Meets EN55022 and VDE0871 level B conducted noise
The A Series offers high input/output isolation of 500VDC with only 1mV rms
(40mV pk-pk) output ripple and noise. Other premium performance features
include line and load regulation of less than ±0.1% and efficiencies of up to
69%. The converters are encapsulated in a 2 x 2 inch industry standard
package with a 0.38 inch profile. The six sided copper case allows optimum
thermal conductivity and provides shielding for EMI/RFI suppression. A Pi input
filter reduces reflected ripple. Reliable operation is assured through the use of
efficient, design-derated components and by heatsinking all dissipating
elements directly to the metal case. This permits operation from -25oC to +71oC
with no derating or additional heatsinking required. A Series DC/DC converter
are suitable for a wide range of general industrial applications, especially where
low noise levels are required.
SPECIFICATION
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
PAGE 1
ELECTROMAGNETIC COMPATIBILITY SPECIFICATIONS
Conducted emissions EN55022, EN55011, FCC Level B
GENERAL SPECIFICATIONS
Efficiency 63% min.
Isolation Voltage Input/Output 500VDC
Switching frequency Fixed 20kHz
Case Material Black coated copper
with non-conductive base
Weight 50g (1.77oz)
MTBF MIL-HDBK-217E 680,000 hours
ENVIRONMENTAL SPECIFICATIONS
Temperature Operating ambient -25°C to +71oC
Non-operating –55°C to +85°C
Case +95oC, max.
Derating None required
Cooling Free-air convection cooled
Relative humidity Non-condensing 5% to 95% RH
Altitude Operating 10,000 feet max.
Non-operating 40,000 feet max.
0.22 Min.
(5.60)
0.800
(20.300)
0.38 ± 0.01
(9.50)
0.040 Dia.
(1.000)
0.500
(12.700)
2.00
(50.80)
0.300
(7.600)
2.00
(50.80)
0.60
(15.20)
0.90
(22.90)
0.200
(5.100)
0.100
(2.500)
CASE Z
12
4
35
BOTTOM
VIEW
Tolerance .xx = ±0.04
.xxx = ±0.005
Notes
1 Maximum.
2 Measured from high line to low line.
3 Measured from full load to no load.
4 The A series case is connected to output common for all input voltages
except 48V when it is connected to + input.
5 Fixed frequency design provides for easier input filtering and better noise
performance.
6 The input voltage range can be increased to 10% under reduced loads.
Please contact the factory for details.
PIN CONNECTIONS
PIN FUNCTION (4)
1 + Input
2 – Input
3 + Output
4 Common
5 – Output
INPUT OUTPUT OUTPUT INPUT CURRENT REGULATION (1) EFFICIENCY MODEL
VOLTAGE VOLTAGE CURRENT NO LOAD FULL LOAD LINE (MAX.) (2) LOAD (MAX.) (3) NUMBER
5VDC ±12VDC ±150mA 150mA 1150mA ±0.07% ±0.07% 63% A05D12/150Z
48VDC ±15VDC ±150mA 20mA 135mA ±0.07% ±0.07% 69% A48D15/150Z
5 Watt
Nominal input DC/DC converters
DC/DC CONVERTERS |
5W DC/DC
PAGE 2
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DS_A_19980401.PDF