Single Output
UER Models
Features
Low-Cost, Wide-Input-Range
12-15 Watt, DC/DC Conv erters
Figure 1. Simplified Schematic
DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • Email: sales@datel.com • Inter net: www.datel.com
COMMON
+V
OUT
+V
IN
–V
IN
ON/OFF
CONTROL
V
OUT
TRIM
REFERENCE &
ERROR AMP
OPTO
ISOLATION
PWM
CONTROLLER
INNOVATION and EX C ELL E N C E
®
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Low cost
Rugged, fully potted, diallyl phthalate
plastic packages
Industry-standard form factor (2" x 2")
and pinout
3.3, 5, 12 or 15 V olt outputs
Wide input voltage ranges:
9-36V or 18-72V
No external components required
Guaranteed efficiencies to 82%
Fully isolated (750Vdc guaranteed)
and I/O protected
V
OUT trim and on/off control
UL, CSA, IEC safety approvals
Modifications and customs for OEM’ s
DATEL’s UER Model single-output s witching DC/DC converters were designed for
cost-sensitive, moderate-power (12-15 Watts) applications requiring a reliable, off-theshelf solution but not demanding all the high-performance characteristics of DATEL ’s ASeries UWR Model converters. Offering slightly wider electrical tolerances and slightly
lower power densities (8.33W/in
3
), UER devices achieve their low cost through the use
of plastic packaging (UL94V -0 rated material) and the exploitation of traditional, yet
highly automated, SMT -on-pcb construction techniques. The result is a contemporary
power converter whose cost/performance/reliability ratio far exceeds the competition.
UER Model DC/DC converters offer the ultra-wide, 9-to-36V and 18-to-72V, input
voltage ranges that have come to be associated with D ATEL power converters. Output
voltages are 3.3V , 5V, 12V or 15V. Line and load regulation are both guaranteed not to
exceed ±1%. All models incorporate internal input/output filtering and require no
external components for normal operation. All units guarantee output ripple/noise less
than 100mVp-p.
These fully isolated (750Vdc guaranteed) devices are input overvoltage and
reverse-polarity protected and employ output current limiting to protect both the power
converter and its load. They off er V
OUT trim and remote on/off control capabilities. They
function well in harsh environments and are popular for both commercial and industrial
usage in computer, telecom, aerospace and process-control applications.
The industry-standard, 2" x 2", package size and pinout of the UER Models makes
them ideal replacements for other, more costly, less reliable power converters. They
are equally well suited for new design-ins in systems demanding both low cost and high
reliability .
XER Series
12-15W, SINGLE OUTPUT DC/DC CONVERTERS
2
PART NUMBER STRUCTURE
MECHANICAL SPECIFICATIONS
TEMPERATURE DERATING
Performance Specifications and Ordering Guide
➀
➀
T ypical at TA = +25°C under nominal line voltage and full-load conditions, unless otherwise noted.
➁
Ripple/Noise (R/N) measured over a 20MHz bandwidth.
➂
For 3.3V and 5V outputs, listed specifications apply over the 10% to 100% load range. For 12V and 15V outputs, 20% to 100% load range.
➃
Nominal line voltage, no-load/full-load conditions.
Ripple/Noise
➁
(mVp-p, Max.)
VOUT
(Volts)
Package
(Case,
Pinout)
Efficiency
(Min.)
Regulation (Max.)
Line
VIN Nom.
(Volts)
Range
(Volts)Model
IOUT
(mA, Max.)
IIN ➃
(mA, Max.)
Load
➂
UER-3.3/3650-D12 3.3 3650 75 ±1.0% ±1.0% 24 9-36 45/672 77% C4, P6
UER-3.3/3650-D48 3.3 3650 75 ±1.0% ±1.0% 48 18-72 25/336 77% C4, P6
UER-5/3000-D12 5 3000 100 ±1.0% ±1.0% 24 9-36 45/789 80% C4, P6
UER-5/3000-D48 5 3000 100 ±1.0% ±1.0% 48 18-72 25/395 80% C4, P6
UER-12/1250-D12 12 1250 100 ±1.0% ±1.0% 24 9-36 45/770 82% C4, P6
UER-12/1250-D48 12 1250 100 ±1.0% ±1.0% 48 18-72 25/385 82% C4, P6
UER-15/1000-D12 15 1000 100 ±1.0% ±1.0% 24 9-36 45/770 82% C4, P6
UER-15/1000-D48 15 1000 100 ±1.0% ±1.0% 48 18-72 25/385 82% C4, P6
Output Input
Nominal Output Voltage:
3.3, 5, 12 or 15 Volts
Maximum Output Current
in mA
Low-Cost, Economy Package
Wide Range Input
Output Configuration:
U = Unipolar
Input Volta ge Range:
D12 = 9-36 Volts (24V nominal)
D48 = 18-72 Volts (48V nominal)
U ER 3000 D48-/ -5
BOTTOM VIEW
1.800
(45.72)
0.10
(2.54)
2.00
(50.80)
8
5
6
7
0.40
(10.16)
0.200
(5.08)
0.400
(10.16)
0.100
(2.54)
1
2
4
PLASTIC CASE
INSULATED BASE
0.040 ±0.002 DIA.
(1.016 ±0.051)
2.00
(50.80)
0.20 MIN
(5.08)
0.50
(12.70)
1.200
(30.48)
3 EQ. SP. @
0.400 (10.16)
Case C4
I/O Connections
Pin
1
2
3
4
5
6
7
8
Function P6
+Input
–Input
No Pin
On/Off Control
No Pin
+Output
Common
Trim
Output Power (Watts)
Ambient Temperature (°C)
–25 0 35 40 45 50 55 6 0 6 5 7 0 7 5 8 0 8 5 9 0 95
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
3.3V OUTPUTS A
ALL OTHERS B
B
A