®
®
INNOVATION and EXCELLENCE
Single Output
UEP Models
High-Density, 2" x 1"
1-4.5 Amp, 11-18 Watt DC/DC's
Features
Models Include
3.3V @ 4.5A
5V @ 3.5A
12V @ 1.2A
15V @ 1A
Choice of 3 input ranges:
10-18V, 18-36V, 36-75V
Guaranteed efficiencies to 86%
11-18 Watts in 1" x 2" package
340kHz synchronous-rectifier topologies
–40 to +60/70°C ambient w/o derating
Fully isolated (1500Vdc); I/O protected
Trim and On/Off Control
UL60950/EN60950 certified
CE mark (75VIN models)
The UEP 11-18Watt series DC/DC converter is an alternative pinout for DATEL’s
flagship A-Series. An external pinout configuration affords the design layout to be
oriented for optimal thermal performance thereby increasing available output power
as much as 20%. Available in a 1" x 2" package, these converters can deliver up to
18 Watts at the same ambient temperatures as their 15 Watt counterparts.
By combining a high-frequency (340kHz), high-efficiency (to 88%), synchronousrectifier topology with the newest components and time-tested, fully automated,
SMT-on-pcb construction, these UEP Models are able to bring you 11-18W in the
standard 2" x 1" package from which most competitors can only get 5-10W. All
UEP’s deliver their full output power over ambient temperature ranges from –40°C
to as high as +70°C (model and input voltage dependent) without heat sinks or
supplemental forced-air cooling. Devices derate to +100°C.
Output voltages are 3.3, 5, 12 or 15 Volts. Input voltage ranges are 10-18V
("D12" models), 18-36V ("D24" models) or 36-75V ("D48") models. All models feature input pi filters, input undervoltage and overvoltage lockout, input reverse-polarity
protection, output overvoltage protection, output current limiting, and continuous
short-circuit protection. Standard features also include On/Off Control and outputtrim. All models are certified to IEC950, UL60950 and EN60950 safety requirements
for OPERATIONAL insulation. "D48" models (36-75V inputs) are CE marked.
UEP 11-18W DC/DC’s are packaged in low-cost, light-weight, diallyl phthalate
(UL94V-0 rated) plastic packages with standoffs. EMC compliance is achieved via a
low-noise design rather than through expensive metal shielding.
+INPUT
+OUTPUT
SWITCH
CONTROL
➀
–OUTPUT
➀
–INPUT
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
TRIM
UVLO & OVLO
COMPARATORS
ON/OFF
CONTROL
➀ 1.5, 1.8, 2.5, 3.3V and 5V-output models use the synchronous-rectifier configuration shown above.
12V and 15V-output models employ a standard, diode-rectification architecture.
Figure 1. Simplified Schematic
DATEL, Inc., Mansfield, MA 02048 (USA) · Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 · Email: [email protected] · Internet: www.datel.com
UEP Series
1 1 - 1 8 W, S I N G L E O U T P U T D C / D C C O N V E RT E R S
Performance Specifications and Ordering Guide
➀
Input
Output
R/N (mVp-p) ➁
Regulation (Max.)
Range
(Volts)
IIN ➃
(mA)
Package
(Case,
Pinout)
Efficiency
VOUT
(Volts)
IOUT
(mA)
Typ.
Max.
Line
Load ➂
VIN Nom.
(Volts)
Min.
Typ.
UEP-3.3/4500-D12
3.3
4500
85
100
±0.2%
±0.5%
12
10-18
80/1490
84.5%
83.5%
C15, P21
UEP-3.3/4500-D24
3.3
4500
85
100
±0.2%
±0.5%
24
18-36
50/730
87.5%
85.5%
C15, P21
UEP-3.3/4500-D48
Model
3.3
4500
85
100
±0.2%
±0.5%
48
36-75
35/360
87.5%
85.5%
C15, P21
UEP-5/3500-D12
5
3500
85
100
±0.2%
±0.5%
12
10-18
120/1760
86%
84%
C15, P21
UEP-5/3500-D24
5
3500
85
100
±0.2%
±0.5%
24
18-36
65/850
88%
86%
C15, P21
UEP-5/3500-D48
5
3500
85
100
±0.2%
±0.5%
48
36-75
40/430
88%
86%
C15, P21
UEP-12/1400-D12
12
1400
85
100
±0.2%
±0.5%
12
10-18
60/1650
85%
82.5%
C15, P21
UEP-12/1400-D24
12
1400
85
100
±0.2%
±0.5%
24
18-36
45/800
87%
85%
C15, P21
C15, P21
UEP-12/1400-D48
12
1400
85
100
±0.2%
±0.5%
48
36-75
20/400
87%
85%
UEP-15/1200-D12
15
1200
85
100
±0.2%
±0.5%
12
10-18
60/1760
85%
82.%
C15, P21
UEP-15/1200-D24
15
1200
85
100
±0.2%
±0.5%
24
18-36
45/860
87%
85%
C15, P21
UEP-15/1200-D48
15
1200
85
100
±0.2%
±0.5%
48
36-75
30/430
87%
85%
C15, P21
➀ Typical at TA = +25°C under nominal line voltage and full-load conditions, unless otherwise noted.
➁ Ripple/Noise (R/N) is tested/speciifed over a 20MHz bandwidth. All models are specified with no
external input/output capacitors.
P A R T
N U M B E R
➂ Load regulation is specified over 10%-100% load conditions.
➃ Nominal line voltage, no-load/full-load conditions.
M E C H A N I C A L
S T R U C T U R E
S P E C I F I C A T I O N S
2.00
(50.80)
U EP - 3.3 / 4500 - D48 N
Output Configuration:
U = Unipolar
Maximum Output Current
in mA
Case C15
N Suffix
Available for 12VOUT
and 15VOUT Models
Wide Range Input
Nominal Output Voltage:
3.3, 5, 12 or 15 Volts
PLASTIC CASE
0.49
(12.45)
STANDOFF
0.020 (0.51)
0.040 ±0.002 DIA.
(1.016 ±0.051)
0.20 MIN
(5.08)
1.800
(45.72)
Input Voltage Range:
D12 = 10-18 Volts (12V nominal)
D24 = 18-36 Volts (24V nominal)
D48 = 36-75 Volts (48V nominal)
1
4
2
1.00
(25.40)
Optional Functions
0.400
(10.16)
0.10
(2.54)
5
0.600
(15.24)
3
6
UEP converters are designed such that the 12 and 15VOUT models can be
configures for either positive logic on/off control (no suffix) or negative logic ("N"
suffix). 3.3 and 5VOUT models are available with positive logic only (no suffix).
0.100
(2.54)
BOTTOM VIEW
DIMENSIONS ARE IN INCHES (MM)
No Suffix On/Off Control function (positive polarity) on pin 3
I/O Connections
Pin Function P21
1
+Input
2
Input Return
3
On/Off Control
4
+Output
5
Output Return
6
Trim
N On/Off Control function (negative polarity) on pin 3.
(12V and 15V models only.
2
0.400
(10.16)
0.10
(2.54)
0.800
(20.32)
UEP Models
1 1 - 1 8 W, S I N G L E O U T P U T D C / D C C O N V E RT E R S
Performance/Functional Specifications
Environmental
Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted. ➀➁
Operating Temperature (Ambient):
Without Derating ➅
With Derating
Input
–40 to +60/70°C
to +100°C (See Derating Curves)
Input Voltage Range:
D12A Models
D24A Models
D48A Models
10-18 Volts (12V nominal)
18-36 Volts (24V nominal)
36-75 Volts (48V nominal)
Case Temperature:
Maximum Allowable
+100°C
Storage Temperature
–40 to +105°C
Overvoltage Shutdown:
D12A Models
D24A Models
D48A Models
18.5-21 Volts (20V typical)
37-40 Volts (38V typical)
77-81 Volts (78.5V typical)
Dimensions
Physical
Start-Up Threshold: ➂
D12A Models
D24A Models
D48A Models
9.3-9.8 Volts (9.6V typical)
16.5-18 Volts (17V typical)
34-36 Volts (35V typical)
Undervoltage Shutdown: ➂
D12A Models
D24A Models
D48A Models
7-8.5 Volts (8V typical)
15.5-17.5 Volts (16.5V typical)
32.5-35.5 Volts (34.5V typical)
Input Current:
Normal Operating Conditions
Standby Mode (Off, OV, UV)
See Ordering Guide
5mA
Input Filter Type
Pi
Reverse-Polarity Protection
Brief duration, 10A maximum
On/Off Control (Optional, Pin 3): ➃
D12, D24, & D48 Models
D12N, D24N, & D48N Models
2" x 1" x 0.49" (51 x 25 x 12.45mm)
Shielding
None
Case Material
Diallyl phthalate, meets EN60950
flamability requirements
Pin Material
Brass, solder coated
Weight
1.4 ounces (39.7 grams)
➀
➁
➂
➃
All models are specified with no external input/output capacitors.
See Minimum Output Loading Requirements under Technical Notes.
See Technical Notes for details.
The On/Off Control is designed to be driven with open-collector logic or the application of
appropriate voltages (referenced to –Input (Pin 2)). Applying a voltage to the On/Off Control
pin when no input voltage is applied to the converter may cause permanent damage.
See Technical Notes.
➄ Output noise may be further reduced with the addition of external output capacitors.
See Technical Notes.
➅ Operating temperature range without derating is model and input-voltage dependent.
See Temperature Derating.
On = open or 13V - +VIN, IIN = 50µA max.
Off = 0-0.8V, IIN = 1mA max.
On = 0-0.5V, IIN = 50µA max.
Off = open or 2.4-10V, IIN = 3.7mA max.
Absolute Maximum Ratings
Input Voltage:
Continuous:
D12 Models
D24 Models
D48 Models
Transient (100msec):
D12 Models
D24 Models
D48 Models
Output
VOUT Accuracy (50% load):
±1.5%, maximum
Minimum Loading: ➁
3.3V/5V Outputs
12V/15V Outputs
No load
25mA
Ripple/Noise (20MHz BW) ➀ ➄
See Ordering Guide
Line/Load Regulation
See Ordering Guide
Efficiency
See Ordering Guide
Isolation Voltage:
Input-to-Output
1500Vdc minimum
Isolation Capacitance
470pF
Output Overvoltage Protection:
3.3V Outputs
5V/12V/15V Outputs
Isolation Resistance
100MΩ
Output Current
Current Limit Inception:
3.3V Models
5V Models
12V Models
15V Models
5.5-7 Amps
5.5-6 Amps
1.9-2.7 Amps
1.5-2.1 Amps
Short Circuit: ➂
Average Current
Hiccup, indefinite
3 Amps maximum
VOUT Trim Range
±5%
Overvoltage Protection
Zener/transorb clamp, magnetic feedback
Temperature Coefficient
Input Reverse-Polarity Protection
±0.04% per °C.
200µsec max. to ±1.5% of final value
Start-Up Time: ➂
VIN to VOUT
On/Off to VOUT
50msec
30msec
Switching Frequency
340kHz (±40kHz)
50 Volts
50 Volts
100 Volts
Current must be <10 Amps. Brief
duration only. Fusing recommended.
4.5 Volts, unlimited duration
6.8/15/18 Volts, unlimited duration
Hiccup. Devices can
withstand sustained output short
circuits without damage.
Case Temperature
+100°C
Storage Temperature
–40 to +105°C
Lead Temperature (soldering, 10 sec.)
+300°C
These are stress ratings. Exposure of devices to any of these conditions may adversely
affect long-term reliability. Proper operation under conditions other than those listed in the
Performance/Functional Specifications Table is not implied.
Dynamic Characteristics
Transient Response (50-100% load)
22 Volts
44 Volts
88 Volts
3
UEP Series
T E C H N I C A L
1 1 - 1 8 W, S I N G L E O U T P U T D C / D C C O N V E RT E R S
Trim adjustment greater than 5% can have an adverse effect on the converter's performance and is not recommended.
N O T E S
Floating Outputs
4
1
Since these are isolated DC/DC converters, their outputs are "floating."
Designers will usually use the –Output (pin 5) as the ground/return of the
load circuit. You can, however, use the +Output (pin 4) as ground/return to
effectively reverse the output polarity.
+OUTPUT
+INPUT
2
–INPUT
Minimum Output Loading Requirements
3
3.3 and 5V models employ a synchronous-rectifier design topology. All
models regulate within spec and are stable under no-load conditions. 12/15V
models employ a traditional forward, diode-rectification architecture and
require 25mA loading to achieve their listed regulation specs. Operation
under 25mA load conditions will not damage the 12/15V devices; however
they may not meet all listed specifications.
ON/OFF
CONTROL
TRIM
–OUTPUT
6
20kΩ
5-22
Turns
LOAD
5
Figure 2. Trim Connections Using A Trim Pot
1
+INPUT
+OUTPUT
4
RTRIM DOWN
Filtering and Noise Reduction
2
–INPUT
All UEP Series DC/DC Converters achieve their rated ripple and noise
specifications with no external input/output capacitors. In critical applications,
input/output noise may be further reduced by installing external I/O caps.
Input capacitors should be selected for bulk capacitance, low ESR and high
rms-ripple-current ratings. Output capacitors should be selected for low ESR
and appropriate frequency response. All caps should have appropriate voltage ratings and be mounted as close to the converters as possible.
3
ON/OFF
CONTROL
6
TRIM
LOAD
5
–OUTPUT
Figure 3. Trim Connections To Decrease Output Voltage Using Fixed Resistors
1
The most effective combination of external I/O capacitors will be a function of
your particular load and layout conditions. Our Applications Engineers recommend potential solutions and can discuss the possibility of our modifying a
given device’s internal filtering to meet your specific requirements. Contact
our Applications Engineering Group for additional details.
+INPUT
+OUTPUT
4
2
–INPUT
3
Input Fusing
Certain applications and/or safety agencies may require the installation of
fuses at the inputs of power conversion components. Fuses should also be
used if the possibility of sustained, non-current-limited, input-voltage polarity
reversals exists. For DATEL UER 11-18 Watt DC/DC Converters, you should
use slow-blow type fuses with values no greater than the following.
ON/OFF
CONTROL
6
TRIM
LOAD
RTRIM UP
–OUTPUT
5
Figure 4. Trim Connections To Increase Output Voltage Using Fixed Resistors
Model
Trim Equation
UEP-3.3/4500-D12
UEP-3.3/4500-D24
UEP-3.3/4500-D48
RTDOWN (kΩ) =
UEP-5/3500-D12
UEP-5/3500-D24
UEP-5/3500-D48
RTDOWN (kΩ) =
These converters have a trim capability (pin 6) that allows users to adjust the
output voltage ±5%. Adjustments to the output voltage can be accomplished
via a trim pot, Figure 2, or a single fixed resistor as shown in Figures 3 and 4.
A single fixed resistor can increase or decrease the output voltage depending
on its connection. Fixed resistors should have an absolute TCR less than
100ppm/°C to minimize sensitivity to changes in temperature.
UEP-12/1400-D12
UEP-12/1400-D24
UEP-12/1400-D48
RTDOWN (kΩ) =
A single resistor connected from the Trim (pin 6) to the +Output (pin 4), see
Figure 3, will decrease the output voltage. A resistor connected from the Trim
(pin 6) to –Output (pin 5) will increase the output voltage.
UEP-15/1200-D12
UEP-15/1200-D24
UEP-15/1200-D48
RTDOWN (kΩ) =
VIN Range
D12 Models
D24 Models
D48 Models
Fuse Value
3 Amps
2 Amps
1 Amp
Trimming Output Voltages
RTUP (kΩ) =
RTUP (kΩ) =
RT UP (kΩ) =
RTUP (kΩ) =
2.49(VO – 1.27)
3.3 – VO
3.16
VO – 3.3
–16.9
–16.9
2.49(VO – 2.527)
–15
5 – VO
6.292
VO – 5
–15
6.34(VO – 5.714)
–49.9
12 – VO
36.23
VO – 12
–49.9
7.87(VO – 7.136)
–63.4
15 – VO
56.16
VO – 15
–63.4
Accuracy of adjustment is subject to tolerances or resistor values
and factory-adjusted output accuracy. VO = desired output voltage.
4
UEP Models
1 1 - 1 8 W, S I N G L E O U T P U T D C / D C C O N V E RT E R S
Start-Up Threshold and Undervoltage Shutdown
Sync Function (Optional)
Under normal start-up conditions, UEP DC/DC Converters will not begin
to regulate properly until the ramping input voltage exceeds the Start-Up
Threshold. Once operating, devices will turn off when the applied voltage
drops below the Undervoltage Shutdown point. Devices will remain off as
long as the undervoltage condition continues. Units will automatically re-start
when the applied voltage is brought back above the Start-Up Threshold. The
hysteresis built into this function avoids an indeterminate on/off condition at
a single input voltage. See Performance/Functional Specifications table for
actual limits.
Contact DATEL for further information.
Start-Up Time
The VIN to VOUT start-up time is the interval of time where the input voltage
crosses the turn-on threshold point, and the fully loaded output voltage
enters and remains within its specified accuracy band. Actual measured
times will vary with input source impedance, external input/output capacitance, and load. The UHE Series implements a soft start circuit
that limits the duty cycle
of the PWM controller at power up, thereby limiting the Input Inrush current.
On/Off Control
The On/Off Control to VOUT start-up time assumes the converter has its
nominal input voltage applied but is turned off via the On/Off Control pin.
The specification defines the interval between the time at which the converter
is turned on and the fully loaded output voltage enters and remains within
its specified accuracy band. Similar to the VIN to VOUT start-up, the On/Off
Control to VOUT start-up time is also governed by the internal soft start
circuitry and external load capacitance.
The input-side, remote On/Off Control function (pin 4) can be ordered to
operate with either polarity (12 and 15 Volt models only). Positive-polarity
devices (standard, no part-number suffix) are enabled when pin 3 is left open
or is pulled high (+13V to VIN applied with respect to –Input, pin 2, (see Figure
2). Positive-polarity devices are disabled when pin 5 is pulled low (0-0.8V
with respect to –Input). Negative-polarity devices are off when pin 3 is open
or pulled high (+2.4V to +10V), and on when pin 3 is pulled low (0-0.5V).
See Figure 3.
1
Input Overvoltage/Undervoltage Shutdown and Start-Up Threshold
Under normal start-up conditions, devices will not begin to regulate until the
ramping-up input voltage exceeds the Start-Up Threshold Voltage (35V for
"D48" models). Once operating, devices will not turn off until the input voltage drops below the Undervoltage Shutdown limit (34V for "D48" models).
Subsequent re-start will not occur until the input is brought back up to the
Start-Up Threshold. This built in hysteresis prevents any unstable on/off
situations from occurring at a single input voltage.
+INPUT
200k
13V CIRCUIT
3
ON/OFF
CONTROL
2
5V CIRCUIT
Input voltages exceeding the input overvoltage shutdown specification listed
in the Performance/Functional Specifications will cause the device to shutdown. A built-in hysteresis of 0.6 to 1.6 Volts for all models will not allow the
converter to restart until the input voltage is sufficiently reduced.
–INPUT
Figure 2. Driving the Positive Polarity On/Off Control Pin
Input Reverse-Polarity Protection
1
If the input-voltage polarity is accidentally reversed, an internal diode will
become forward biased and likely draw excessive current from the power
source. If the source is not current limited (<10A) nor the circuit appropriately
fused, it could cause permanent damage to the converter.
+INPUT
3
ON/OFF
CONTROL
2
Current Limiting
When output increases to 120% to 190% of the rated output current,
the DC/DC converter will go into a current limiting mode. In this condition
the output voltage will decrease proportionately with increases in output current, thereby maintaining a somewhat constant power dissipation. This is
commonly referred to as power limiting. Current limit inception is defined
as the point where the full-power output voltage falls below the specified
tolerance. See Performance/Functional Specifications. If the load current
being drawn from the converter is significant enough, the unit will go into a
short circuit condition. See "Short Circuit Condition."
–INPUT
Figure 3. Driving the Negative Polarity On/Off Control Pin
Dynamic control of the remote on/off function is best accomplished with
a mechanical relay or an open-collector/open-drain drive circuit (optically
isolated if appropriate). The drive circuit should be able to sink appropriate
current (see Performance Specs) when activated and withstand appropriate
voltage when deactivated.
Applying an external voltage to pin 3 when no input power is applied to the
converter can cause permanent damage to the converter.
5
UEP Series
1 1 - 1 8 W, S I N G L E O U T P U T D C / D C C O N V E RT E R S
Short Circuit Condition
Temperature Derating Curves for 5V Output Models
20
When a converter is in current limit mode the output voltages will drop as
the output current demand increases. If the output voltage drops too low, the
magnetically coupled voltage used to develop primary side voltages will also
drop, thereby shutting down the PWM controller.
VIN = 18V-27V (D24)
17.5
VIN = 36V-48V (D48)
15
Output Power (Watts)
Following a time-out period, the PWM will restart, causing the output voltage
to begin ramping to its appropriate value. If the short-circuit condition persists, another shutdown cycle will be initiated. This on/off cycling is referred
to as "hiccup" mode. The hiccup cycling reduces the average output current,
thereby preventing internal temperatures from rising to excessive levels. The
UEP is capable of enduring an indefinite short circuit output condition.
12.5
VIN = 18V-30V (D24)
10
VIN = 36V-60V (D48)
7.5
VIN = 12V (D12)
VIN = 18V-36V (D24)
5
VIN = 36V-75V (D48)
Thermal Shutdown
2.5
These UEP converters are equipped with Thermal Shutdown Circuitry. If
environmental conditions cause the internal temperature of the DC/DC
converter rises above the designed operating temperature, a precision temperature sensor will power down the unit. When the internal temperature
decreases below the threshold of the temperature sensor the unit will self
start. See Performance/Functional Specifications.
0
–40
0
40
45
50
55
60
65
70
75
80
85
90
95
100
Ambient Temperature (˚C)
Temperature Derating Curves for 12V Output Models
Output Overvoltage Protection
18
UEP output voltages are monitored for an overvoltage condition via a
comparator which is optically coupled to the primary side. If the output
voltage should rise to a level which could be damaging to the load circuitry,
the sensing circuitry will power down the PWM controller causing the output
voltages to decrease. Following a time-out period the PWM will restart,
causing the output voltages to ramp to their appropriate values. If the fault
condition persists, and the output voltages again climb to excessive levels,
the overvoltage circuitry will initiate another shutdown cycle. This on/off
cycling is referred to as "hiccup" mode.
16
VIN = 18V-27V (D24)
VIN = 36V-48V (D48)
Output Power (Watts)
14
12
VIN = 18V-30V (D24)
10
VIN = 36V-60V (D48)
8
VIN = 12V (D12)
6
VIN = 18V-36V (D24)
VIN = 36V-75V (D48)
4
2
0
–40
0
40
45
50
TEMPERATURE DERATING
55
60
65
70
75
80
85
90
95
100
Ambient Temperature (˚C)
Temperature Derating Curves for 3.3V Output Models
Temperature Derating Curves for 15V Output Models
17.5
20
VIN = 18V-27V (D24)
18
VIN = 18V-27V (D24)
VIN = 36V-48V (D48)
15
VIN = 36V-48V (D48)
16
14
Output Power (Watts)
Output Power (Watts)
12.5
10
VIN = 18V-30V (D24)
VIN = 36V-60V (D48)
7.5
VIN = 12V (D12)
VIN = 18V-36V (D24)
5
VIN = 18V-30V (D24)
12
VIN = 36V-60V (D48)
10
8
VIN = 12V (D12)
6
VIN = 18V-36V (D24)
VIN = 36V-75V (D48)
VIN = 36V-75V (D48)
4
2.5
2
0
0
–40
0
40
45
50
55
60
65
70
75
80
85
90
95
100
–40
Ambient Temperature (˚C)
0
40
45
50
55
60
65
70
75
Ambient Temperature (˚C)
6
80
85
90
95
100
UEP Models
1 1 - 1 8 W, S I N G L E O U T P U T D C / D C C O N V E RT E R S
EFFICIENCY VS. LINE AND LOAD
UEP-5/3500-D12 Efficiency vs. Line Voltage and Load Current
90
85
85
80
80
75
75
Efficiency (%)
Efficiency (%)
UEP-3.3/4500-D12 Efficiency vs. Line Voltage and Load Current
90
70
65
60
VIN = 10V
55
VIN = 12V
70
65
60
VIN = 10V
55
VIN = 12V
VIN = 18V
VIN = 18V
50
50
45
45
40
0.4
0.91
1.43
1.94
2.45
2.96
3.48
3.99
40
0.3
4.5
0.7
1.1
Load Current (Amps)
85
85
80
80
75
75
70
65
VIN = 18V
55
VIN = 24V
60
VIN = 18V
55
VIN = 24V
45
45
1.94
2.45
2.96
3.48
3.99
40
0.3
4.5
0.7
1.1
Load Current (Amps)
85
85
80
80
75
75
70
65
55
VIN = 48V
1.5
60
VIN = 36V
55
VIN = 48V
45
45
1.94
2.45
2.96
3.1
3.5
VIN = 75V
50
1.43
2.7
65
50
0.91
2.3
70
VIN = 75V
40
0.4
1.9
UEP-5/3500-D48 Efficiency vs. Line Voltage and Load Current
90
Efficiency (%)
Efficiency (%)
UEP-3.3/4500-D48 Efficiency vs. Line Voltage and Load Current
VIN = 36V
3.5
Load Current (Amps)
90
60
3.1
VIN = 36V
50
1.43
2.7
65
50
0.91
2.3
70
VIN = 36V
40
0.4
1.9
UEP-5/3500-D24 Efficiency vs. Line Voltage and Load Current
90
Efficiency (%)
Efficiency (%)
UEP-3.3/4500-D24 Efficiency vs. Line Voltage and Load Current
90
60
1.5
Load Current (Amps)
3.48
3.99
40
0.3
4.5
Load Current (Amps)
0.7
1.1
1.5
1.9
2.3
Load Current (Amps)
7
2.7
3.1
3.5
UEP Series
1 1 - 1 8 W, S I N G L E O U T P U T D C / D C C O N V E RT E R S
EFFICIENCY VS. LINE AND LOAD
UEP-15/1200-D12 Efficiency vs. Line Voltage and Load Current
90
85
85
80
80
Efficiency (%)
Efficiency (%)
UEP-12/1400-D12 Efficiency vs. Line Voltage and Load Current
90
75
70
VIN = 10V
VIN = 12V
65
75
70
VIN = 10V
VIN = 12V
65
VIN = 18V
VIN = 18V
60
60
55
0.10
0.26
0.43
0.59
0.75
0.91
1.06
1.24
55
0.10
1.40
0.24
0.38
Load Current (Amps)
85
85
80
80
75
VIN = 18V
VIN = 24V
65
0.79
0.93
1.06
1.2
75
70
VIN = 18V
VIN = 24V
65
VIN = 36V
VIN = 36V
60
60
55
0.10
0.26
0.43
0.59
0.75
0.91
1.06
1.24
55
0.10
1.40
0.24
0.38
Load Current (Amps)
0.65
0.79
0.93
1.06
1.2
UEP-15/1200-D48 Efficiency vs. Line Voltage and Load Current
90
90
85
85
80
80
Efficiency (%)
75
70
65
VIN = 36V
60
VIN = 48V
55
VIN = 75V
75
70
VIN = 36V
65
VIN = 48V
60
VIN = 75V
55
50
45
0.10
0.51
Load Current (Amps)
UEP-12/1400-D48 Efficiency vs. Line Voltage and Load Current
Efficiency (%)
0.65
UEP-15/1200-D24 Efficiency vs. Line Voltage and Load Current
90
Efficiency (%)
Efficiency (%)
UEP-12/1400-D24 Efficiency vs. Line Voltage and Load Current
90
70
0.51
Load Current (Amps)
0.26
0.43
0.59
0.75
0.91
1.06
1.24
50
0.10
1.40
0.24
0.38
0.51
0.65
0.79
Load Current (Amps)
Load Current (Amps)
8
0.93
1.06
1.2
A Series
9 - 1 5 W, S I N G L E O U T P U T D C / D C C O N V E RT E R S
Typical Performance Curves
Output Ripple and Noise (PARD)
Output Ripple and Noise (PARD)
(VIN = nominal, 3.3V @ 4.5A, no external capacitors.)
(VIN = nominal, 12V @ 1.4A, no external capacitors.)
20mV/div, 20MHz BW
Output Ripple and Noise (PARD)
Output Ripple and Noise (PARD)
(VIN = nominal, 5V @ 3.5A, no external capacitors.)
(VIN = nominal, 15V @ 1.2A, no external capacitors.)
20mV/div, 20MHz BW
®
20mV/div, 20MHz BW
®
INNOVATION and EXCELLENCE
ISO-9001 REGISTERED
DS-0502
9/01
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444
DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 01-34-60-01-01
DATEL GmbH München, Germany Tel: 89-544334-0
DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-6354-2025
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
Internet: www.datel.com
Email: [email protected]
Data Sheet Fax Back: (508) 261-2857
DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do
not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.
9