UHE-1.2/10000-D12N-L2-Y [MURATA]
Analog Circuit, Hybrid,;
| 型号： | UHE-1.2/10000-D12N-L2-Y |
| 厂家： | 
muRata |
| 描述： | Analog Circuit, Hybrid, |
| 文件： | 总14页 (文件大小：1745K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
Housed in smaller, ꢀ.6" x 2" x 0.40" (4ꢀ x 5ꢀ x ꢀ0.2mm) packages
carrying the standard 2" x 2" pinout, C&D's new UHE Series DC/
DC Converters deliver more current/power (up to ꢀ0A/30W) than
currently available from either package size.
FEATURES
PRODUCT OVERVIEW
nꢀThe most IOUT/POUT in this format
nꢀLower priced than bricks
The UHE ꢀ2-30W Series of high-efficiency, isolated
DC/DC's provide output power ranging from ꢀ0
Amps @ ꢀ.2V to 2 Amps @ ꢀ5V. Offering both
2:ꢀ and 4:ꢀ input voltage ranges, UHE's meet VIN
requirements from 9 to 75 Volts.
shortcomings–output reverse conduction.
All devices feature full I/O fault protection including:
input overvoltage and undervoltage shutdown,
precise output overvoltage protection (a rarity on
low-voltage outputs), output current limiting, short-
circuit protection, and thermal shutdown.
nꢀSmall ꢀ.6" x 2" x 0.4" plastic package with
standard 2" x 2" pinout
nꢀOutput configurations:
ꢀ.2/ꢀ.5/ꢀ.8/2.5VOUT @ ꢀ0 Amps
3.3/5VOUT @ 25 Watts
Taking full advantage of the synchronous-recti-
fier, forward topology, UHE's boast outstanding
efficiency (some models exceed 9ꢀ%) enabling
full-power operation to ambient temperatures as
high as +60°C, without air flow. Assembled using
fully automated, SMT-on-pcb techniques, UHE's
provide stable no-load operation, excellent line
( 0.ꢀ%) and load ( 0.ꢀ5%) regulation, quick step
response (200µsec), and low output ripple/noise
(50-ꢀ00mVp-p). Additionally, the UHE's unique
output design eliminates one of the topology's few
All UHE models incorporate a VOUT Trim function and
an On/Off Control pin (positive or negative polarity).
Low-voltage models (ꢀ.2V to 5V) offer optional
sense pins facilitating either remote load regula-
tion or current sharing for true N+ꢀ redundancy.
All models are certified to the BASIC insulation
requirements of UL/EN60950, and 48VIN (75V max.)
models carry the CE mark. Selected models are
RoHS compliant (Reduction of Hazardous Sub-
stances).
5/ꢀ2/ꢀ5VOUT @ 30 Watts
nꢀFive input ranges from 9-75 Volts
nꢀEfficiencies as high as 9ꢀ.5%
nꢀStable no-load operation
nꢀOptional Sense pins for low VOUT
nꢀThermal shutdown, I/O protected
nꢀꢀ500 Vdc I/O BASIC Insulation
nꢀUL/EN60950 certified; CE marked for Q48
models
SIMPLIFIED SCHEMATIC
+INPUT
(1)
+OUTPUT
(6)
nꢀRoHS compliant
SWITCH
CONTROL
+SENSE
(5)
–OUTPUT
(7)
OPTO
ISOLATION
–SENSE
(8)
THERMAL
SHUTDOWN
*
–INPUT
(2)
OVERVOLTAGE
COMPARATOR
PWM
CONTROLLER
OPTO
ISOLATION
REFERENCE &
ERROR AMP
V
OUT TRIM
(9)
UVLO & OVLO
COMPARATORS
ON/OFF
CONTROL
(4)
Optional comparator feedback. Contact DATEL.
Sense pins are optional on ꢀ.2-5VOUT models ("R" suffix).
*One phase of two is shown.
Typical topography is shown.
For full details go to
www.cd4power.com/rohs
DC/DC CONVERTERS
MDC_UHE_A01 Page ꢀ of ꢀ4
www.cd4power.com
UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
PERFORMANCE SPECIFICATIONS AND ORDERING GUIDE
Model Family
Output
R/N (mVp-p)
Input
Package
Efficiency
Regulation (Max.)
IIN ꢀ
(mA/A)
(See model numbering
VOUT
IOUT
VIN Nom.
(Volts)
Range
(Volts)
(Case/
on page ꢀ3)
(Volts)
(Amps)
Pinout)
Typ.
80
80
80
55
55
55
55
55
50
50
50
50
50
60
60
80
50
60
50
80
80
90
ꢀ00
65
65
ꢀ00
60
70
70
70
ꢀ00
70
Max.
ꢀ20
ꢀ20
ꢀ20
80
80
80
80
80
75
75
75
75
70
90
90
ꢀ00
70
Line
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.05%
0.075%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
0.ꢀ%
Load
ꢀ.2
ꢀ.2
ꢀ.2
ꢀ.5
ꢀ.5
ꢀ.5
ꢀ.8
ꢀ.8
ꢀ.8
2.5
2.5
2.5
3.3
3.3
3.3
3.3
5
ꢀ0
ꢀ0
ꢀ0
ꢀ0
ꢀ0
ꢀ0
ꢀ0
ꢀ0
ꢀ0
ꢀ0
ꢀ0
ꢀ0
7.5
7.5
7.5
7.5
5
0.ꢀ5/0.625%
0.ꢀ5/0.625%
0.ꢀ5/0.625%
0.ꢀ5/0.625%
0.ꢀ5/0.625%
0.ꢀ5/0.625%
0.ꢀ5/0.625%
0.ꢀ5/0.625%
0.ꢀ5/0.625%
0.ꢀ5/0.5%
0.ꢀ5/0.5%
0.ꢀ5/0.5%
0.ꢀ5/0.3%
0.ꢀ5/0.3%
0.ꢀ5/0.3%
0.25%
0.ꢀ5/0.3%
0.ꢀ5/0.3%
0.ꢀ5%
0.25/0.5%
0.25%
0.45%
0.3%
0.3%
0.3%
ꢀ2
24
48
ꢀ2
24
48
ꢀ2
24
48
ꢀ2
24
48
24
48
48
48
24
48
24
48
48
48
24
ꢀ2
24
48
48
ꢀ2
24
24
48
48
9-ꢀ8
ꢀ8-36
36-75
9-ꢀ8
ꢀ8-36
36-75
9-ꢀ8
ꢀ8-36
36-75
9-ꢀ8
ꢀ8-36
36-75
9-36
ꢀ8-75
36-75
36-75
9-36
ꢀ8-75
9-36
36-75
36-75
ꢀ8-75
9-36
35/ꢀ.27
35/0.63
35/0.3ꢀ
35/ꢀ.56
35/0.76
35/0.38
35/ꢀ.8ꢀ
35/0.89
35/0.46
35/2.48
35/ꢀ.23
35/0.6ꢀ
50/ꢀ.2
80%
8ꢀ%
8ꢀ%
8ꢀ%
84%
82%
84%
85.5%
83.5%
85%
86%
86%
86.5%
87.5%
88.5%
87%
82%
83%
83%
83%
86%
84%
85.5%
87%
85%
87%
88%
88%
88%
89.5%
9ꢀ%
88.5%
87.5%
90%
87%
89%
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ/52
C32, P5ꢀ
C32, P5ꢀ
C32, P5ꢀ
C32, P5ꢀ
C32, P5ꢀ
UHE-1.2/10000-D12
UHE-1.2/10000-D24
UHE-1.2/10000-D48
UHE-1.5/10000-D12
UHE-1.5/10000-D24
UHE-1.5/10000-D48
UHE-1.8/10000-D12 ꢀ
UHE-1.8/10000-D24
UHE-1.8/10000-D48
UHE-2.5/10000-D12
UHE-2.5/10000-D24
UHE-2.5/10000-D48
UHE-3.3/7500-Q12
UHE-3.3/7500-Q48
UHE-3.3/7500-D48
UHE-3.3/7500-D48T
UHE-5/5000-Q12
38/0.6
35/0.6
35/0.58
50/ꢀ.22
35/0.6
50/ꢀ.44
45/0.73
45/0.7
38/0.7ꢀ
ꢀ45/ꢀ.5
90/2.92
55/ꢀ.44
45/0.72
30/0.7
ꢀꢀ0/2.92
50/ꢀ.42
70/ꢀ.44
45/0.72
35/0.7
86%
UHE-5/5000-Q48
5
5
90
70
87.5%
86.5%
87.5%
87.5%
86%
85%
87%
88%
88%
90%
87%
86%
88%
88%
90%
UHE-5/6000-Q12
5
6
UHE-5/6000-D48
5
6
ꢀ00
ꢀ00
ꢀ25
ꢀ20
ꢀ00
ꢀ00
ꢀ20
ꢀ00
ꢀ00
ꢀ00
ꢀ00
ꢀ50
ꢀ00
UHE-5/6000-D48T
UHE-5/6000-Q48T
UHE-12/2500-Q12
UHE-12/2500-D12
UHE-12/2500-D24
UHE-12/2500-Q48
UHE-12/2500-D48
UHE-15/2000-D12
UHE-15/2000-Q12
UHE-15/2000-D24
UHE-15/2000-Q48
UHE-15/2000-D48
5
5
6
6
89%
87.5%
87.5%
89%
90%
90.5%
92%
89%
88%
90%
90.5%
92%
ꢀ2
ꢀ2
ꢀ2
ꢀ2
ꢀ2
ꢀ5
ꢀ5
ꢀ5
ꢀ5
ꢀ5
2.5
2.5
2.5
2.5
2.5
2
2
2
2
2
9-ꢀ8
ꢀ8-36
ꢀ8-75
36-75
9-ꢀ8
0.3%
0.3%
0.3%
0.5%
0.3%
0.3%
0.3%
C32, P5ꢀ
C32, P5ꢀ
C32, P5ꢀ
C32, P5ꢀ
C32, P5ꢀ
C32, P5ꢀ
C32, P5ꢀ
9-36
ꢀ8-36
ꢀ8-75
36-75
Typical at TA = +25°C under nominal line voltage and full-load conditions, unless noted.
Ripple/Noise (R/N) is tested/specified over a 20MHz bandwidth. All models are specified with
an external 0.47µF multi-layer ceramic capacitor installed across their output pins.
Nominal line voltage, no-load/full-load conditions.
Devices have no minimum-load requirements and will regulate under no-load conditions.
Regulation specifications describe the output voltage deviation as the line voltage or load
(with/without sense option) is varied from its nominal/midpoint value to either extreme.
Contact C&D for availability.
MECHANICAL SPECIFICATIONS
ꢆꢁꢀꢀ
ꢄꢇꢀꢁꢉꢀꢈ
INPUT/OUTPUT CONNECTIONS
0,!34)# #!3%
34!.$/&&
ꢀꢁꢂꢀ
ꢄꢃꢀꢁꢃꢅꢈ
Pin
ꢀ
Function P51
+Input
Function P52
+Input
2
–Input
–Input
ꢀꢁꢀꢆꢀ ꢄꢀꢁꢇꢃꢈ
3
No Pin
No Pin
ꢀꢁꢀꢂꢀ Òꢀꢁꢀꢀꢃ $)!ꢁ
ꢄꢃꢁꢀꢃꢅ Òꢀꢁꢀꢆꢇꢈ
ꢀꢁꢆꢀ -).
ꢄꢇꢁꢀꢉꢈ
4
On/Off Control
No Pin
On/Off Control
Sense*
ꢃꢁꢉꢀꢀ
ꢄꢂꢇꢁꢊꢆꢈ
ꢀꢁꢃꢀ
ꢄꢆꢁꢇꢂꢈ
5
6
+Output
–Output
No Pin
+Output
–Output
–Sense*
Trim
7
ꢀꢁꢆꢀꢀ
ꢄꢇꢁꢀꢉꢈ
ꢀꢁꢆꢀꢀ
ꢄꢇꢁꢀꢉꢈ
8
ꢂ
ꢀ
9
Trim
ꢅ
ꢃꢁꢅꢀ
ꢄꢂꢀꢁꢅꢂꢈ
ꢀꢁꢂꢀꢀ
ꢄꢃꢀꢁꢃꢅꢈ
* Pins 5 and 8 are installed for optional R-suffix versions of
ꢀ.2-5VOUT models.
ꢆ
ꢈ
ꢇ
ꢄ
ꢃ
ꢀꢁꢂꢀꢀ
ꢄꢃꢀꢁꢃꢅꢈ
ꢀꢁꢂꢀꢀ ꢄꢃꢀꢁꢃꢅꢈ
ꢆ %1ꢁ 3 ꢁ
ꢀꢁꢆꢀꢀ ꢄꢇꢁꢀꢉꢈ
See page ꢀ4 for complete Part Number structure & ordering details.
ꢁ
ꢀꢁꢃꢀꢀ
ꢄꢆꢁꢇꢂꢈ
"/44/- 6)%7
ꢀꢁꢆꢀ
ꢄꢇꢁꢀꢉꢈ
$)-%.3)/.3 !2% ). ).#(%3 ꢄ--ꢈ
DC/DC CONVERTERS
MDC_UHE_A01 Page 2 of ꢀ4
www.cd4power.com
UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted.
(ꢀ) (2)
Output
Input
Overvoltage Protection:
ꢀ.2V Outputs
ꢀ.5V Outputs
ꢀ.8V Outputs
2.5V Outputs
3.3V Outputs
5V Outputs
Magnetic feedback
ꢀ.5-2.ꢀ Volts
ꢀ.8-2.4 Volts
Input Voltage Range:
Dꢀ2 Models (start up at ꢀ0V max.)
Qꢀ2 Models (start up at ꢀ0V max.)
D24 Models
Q48 Models
D48 Models
9-ꢀ8 Volts (ꢀ2V nominal)
9-36 Volts (24V nominal)
ꢀ8-36 Volts (24V nominal)
ꢀ8-75 Volts (48V nominal)
36-75 Volts (48V nominal)
2.2-2.8 Volts
2.8 to 3.2 Volts
4 to 4.8 Volts
6.ꢀ-7.5 Volts
ꢀ2.7-ꢀ3.5 Volts
ꢀ5.8-ꢀ6.2 Volts
Overvoltage Shutdown:
Dꢀ2 Models
Qꢀ2/D24 Models
D48/Q48 Models
Start-Up Threshold:(2)
Dꢀ2/Qꢀ2 Models
D24/Q48 Models
D48 Models
Undervoltage Shutdown:(2)
Dꢀ2/Qꢀ2 Models
D24/Q48 Models
D48 Models
ꢀ2V Outputs
ꢀ5V Outputs
ꢀ8.5-23 Volts
37-42 Volts
Not applicable
Maximum Capacitive Loading:
(Low ESR capacitor)
ꢀ0,000µF (ꢀ.2-5VOUT)
2,000µF (ꢀ2-ꢀ5VOUT)
9.4-ꢀ0 Volts
ꢀ5.5-ꢀ8 Volts
33.5-36 Volts
Dynamic Characteristics
Dynamic Load Response:
(50-ꢀ00% load step to 3% VOUT)
Start-Up Time:(8)
VIN to VOUT and On/Off to VOUT
UHE-ꢀ5/2000-Qꢀ2
200µsec maximum(8)
8msec typical
ꢀ5msec maximum
30mS typ., 50mS max.
7.0-8.8 Volts
ꢀ5-ꢀ7 Volts
32-35.5 Volts
Switching Frequency
ꢀ50-350kHz (model dependent)
Input Current:
Normal Operating Conditions
Standby Mode (Off, OV, UV)
Input Reflected Ripple Current(3)
Environmental
MTBF(9)
Operating Temperature (Ambient):(ꢀ0)
Without Derating
With Derating
Thermal Shutdown
See Ordering Guide
5mA
TBC million hours
ꢀ0mAp-p
–40 to +65°C (model dependent)
To +ꢀ00°C (see Derating Curves)
+ꢀꢀ5°C
Input Filter Type
LC or Pi type
Reverse-Polarity Protection
Remote On/Off Control (Pin 4):(4)
Positive Logic (Standard)
Brief duration, 5A maximum
Storage Temperature
Flammability
Physical
–55 to +ꢀ25°C
94V-Ø
On = open, open collector, or
+ꢀ3V to VIN applied. IIN = 2.6mA max.
Off = pulled low to 0-0.8V. IIN = 2mA
max.
On = pulled low to 0-0.8V. IIN = 6mA
max.
Dimensions
ꢀ.6" x 2" x 0.40" (40.64 x 50.8 x
ꢀ0.ꢀ6mm)
Negative Logic ("N" Suffix Models)
Case Material
Diallyl Phthalate
Off = open, open collector or
+3.5V to VIN applied. IIN = ꢀmA max.
Pin Material
Gold-plated copper alloy
ꢀ.5ꢀ ounces (46.9 grams)
Basic
Weight
Output
Primary to Secondary Insulation Level
VOUT Accuracy (50% load):
Initial
ꢀ.5%
0.02% per °C
3%
(ꢀ) All models are tested and specified with a single, external, 0.47µF, multi-layer ceramic
output capacitor and no external input capacitors, unless otherwise noted. All models
will effectively regulate under no-load conditions (with perhaps a slight increase in output
ripple/noise).
(2) See Technical Notes/Performance Curves for additional explanations and details.
(3) Input Ripple Current is tested/specified over a 5-20MHz bandwidth with an external 33µF
input capacitor and a simulated source impedance of 220µF and ꢀ2µH. See I/O Filtering,
Input Ripple Current and Output Noise for details.
(4) The On/Off Control is designed to be driven with open-collector (or equivalent) 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 can cause permanent
damage. See Remote On/Off Control for more details.
Temperatue Coefficient
Extreme(5)
Minimum Loading for Specification:(2)
Ripple/Noise (20MHz BW) (ꢀ)
Line/Load Regulation
No load
See Ordering Guide
See Ordering Guide
See Ordering Guide
5% minimum ( ꢀ0% for T models)
5%
Efficiency
VOUT Trim Range(6)
Remote Sense Compensation(2)
(5) Extreme Accuracy refers to the accuracy of either trimmed or untrimmed output voltages
over all normal operating ranges and combinations of input voltage, output load and tem-
perature.
(6) Tie the Output Trim pin (pin 9) to +Output (pin 6) for maximum trim down or to –Output
(Output Return/Common, pin 7) for maximum trim up. See Output Trimming for detailed trim
equations.
(7) The Current-Limit-Inception point is the output current level at which the converter's power-
limiting circuitry drops the output voltage 2% from its initial value. See Output Current Limit-
ing and Short-Circuit Protection for more details.
(8) For Start-Up-Time specifications, output settling time is defined as the output voltage having
reached ꢀ% of its final value at maximum load current.
Isolation Voltage:
Input-to-Output
ꢀ500Vdc minimum (BASIC)
Isolation Capacitance
650pF
Isolation Resistance
Current Limit Inception (@98%VOUT):(7)
ꢀ0 Amp Models
7.5 Amp Models
5/6 Amp Models
ꢀ00MΩ
ꢀ2-ꢀ5 Amps
8.2-ꢀꢀ.5 Amps
6.5-8.5 Amps
2.6-3.75 Amps
2.ꢀ-3 Amps
2.5 Amp Models
2.0 Amp Models
(9) MTBF’s are calculated using TELCORDIA SR-332 Method ꢀ Case, ground fixed, +25°C ambi-
ent air and full-load conditions. Contact C&D for demonstrated life-test data.
(ꢀ0) All models are fully operational and meet all published specifications, including "cold start,"
at –40°C.
Short Circuit Current (Hiccup)
ꢀ.5-2.3 Amps
DC/DC CONVERTERS
MDC_UHE_A01 Page 3 of ꢀ4
www.cd4power.com
UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Absolute Maximum Ratings
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
Input 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. Once
operating, devices will not turn off until the input voltage drops below the
Undervoltage Shutdown limit. 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 Voltage:
Continuous:
Dꢀ2 Models
D24/Qꢀ2 Models
D48/Q48 Models
Transient (ꢀ00msec):
Dꢀ2 Models
23 Volts
42 Volts
8ꢀ Volts
25 Volts
50 Volts
ꢀ00 Volts
D24/Qꢀ2 Models
D48/Q48 Models
Start-Up Time
On/Off Control (pin 4) Max. Voltages
Referenced to –Input (pin 2)
No Suffix
The VIN to VOUT Start-Up Time is the interval of time between the point at
which the ramping input voltage crosses the Start-Up Threshold 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 its PWM controller at power up,
thereby limiting the input inrush current.
+VIN
+7 Volts
"N" Suffix
Input Reverse-Polarity Protection
Output Current
Current must be <5 Amps. Brief
duration only. Fusing recommended.
Current limited. Devices can
withstand sustained output short
circuits without damage.
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 point at which the con-
verter 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.
Case Temperature
+ꢀ00°C
Storage Temperature
–55 to +ꢀ25°C
+300°C
Lead Temperature (soldering, ꢀ0 sec.)
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.
The difference in start up time from VIN to VOUT and from On/Off Control to
VOUT is therefore insignificant.
T E C H N I C A L N O T E S
Input Overvoltage Shutdown
All Dꢀ2/Qꢀ2 and D24 Models of the UHE DC/DC converters are equipped
with Input Overvoltage Protection. Input voltages exceeding the input
overvoltage shutdown specification listed in the Performance/Functional
Specifications will cause the device to shutdown. A built-in hysteresis for
all models will not allow the converter to restart until the input voltage is
sufficiently reduced.
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 UHE ꢀ2-30 Watt DC/DC Converters, you
should use slow-blow type fuses, installed in the ungrounded input supply
line, with values no greater than the following.
All 48VIN models have this overvoltage shutdown function disabled because
of requirements for withstanding brief input surges to ꢀ00V for up to
ꢀ00msec without output voltage interruption.
Model
Fuse Values in Amps
Output/Input
ꢀ.2 VOUT
ꢀ.5 VOUT
ꢀ.8 VOUT
2.5 VOUT
3.3 VOUT
5 VOUT
D12
3
4
5
5
--
--
6
Q12
--
--
--
--
D24
2
2
2.5
2.5
-
Q48
--
--
--
--
3
D48
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ.5
2
2
Please contact DATEL to have input overvoltage shutdown for D48/Q48
models enabled.
Input Source Impedance
UHE converters must be driven from a low ac-impedance input source.
The DC/DC's performance and stability can be compromised by the use of
highly inductive source impedances. The input circuit shown in Figure 2
is a practical solution that can be used to minimize the effects of induct-
ance in the input traces. For optimum performance, components should
be mounted close to the DC/DC converter. If the application has a high
source impedance, low VIN models can benefit of increased external input
capacitance.
7.5
5
-
3
5
5
ꢀ2 VOUT
ꢀ5 VOUT
3
3
6
3
3
2
All relevant national and international safety standards and regulations
must be observed by the installer. For system safety agency approvals, the
converters must be installed in compliance with the requirements of the
end-use safety standard, e.g. IEC/EN/UL60950.
DC/DC CONVERTERS
MDC_UHE_A01 Page 4 of ꢀ4
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UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
I/O Filtering, Input Ripple Current, and Output Noise
All models in the UHE ꢀ2-30 Watt DC/DC Converters are tested/specified for
input reflected ripple current and output noise using the specified external
input/output components/circuits and layout as shown in the following two
figures.
COPPER STRIP
+SENSE
+OUTPUT
RLOAD
SCOPE
C1
C2
External input capacitors (CIN in Figure 2) serve primarily as energy-storage
elements, minimizing line voltage variations caused by transient IR drops
in conductors from backplane to the DC/DC. Input caps should be selected
for bulk capacitance (at appropriate frequencies), low ESR, and high rms-
ripple-current ratings. The switching nature of DC/DC converters requires
that dc voltage sources have low ac impedance as highly inductive source
impedance can affect system stability. In Figure 2, CBUS and LBUS simulate a
typical dc voltage bus. Your specific system configuration may necessitate
additional considerations.
–OUTPUT
–SENSE
COPPER STRIP
C1 = 0.47µF CERAMIC
C2 = NA
LOAD 2-3 INCHES (51-76mm) FROM MODULE
Figure 3. Measuring Output Ripple/Noise (PARD)
Minimum Output Loading Requirements
TO
UHE converters employ a synchronous-rectifier design topology and all
models regulate within spec and are stable under no-load to full load con-
ditions. Operation under no-load conditions however might slightly increase
the output ripple and noise.
CURRENT
PROBE
OSCILLOSCOPE
+INPUT
–INPUT
LBUS
+
VIN
CBUS
CIN
–
Thermal Shutdown
These UHE converters are equipped with thermal-shutdown circuitry. If
environmental conditions cause the internal temperature of the DC/DC
converter to rise above the designed operating temperature, a precision
temperature sensor will power down the unit. When the internal tempera-
ture decreases below the threshold of the temperature sensor, the unit will
self start. See Performance/Functional Specifications.
C
IN = 33µF, ESR < 700m7 @ 100kHz
BUS = 220µF, ESR < 100m7 @ 100kHz
C
LBUS = 12µH
Figure 2. Measuring Input Ripple Current
In critical applications, output ripple/noise (also referred to as periodic and
random deviations or PARD) may be reduced below specified limits using
filtering techniques, the simplest of which is the installation of additional
external output capacitors. These output caps function as true filter ele-
ments and should be selected for bulk capacitance, low ESR and appropri-
ate frequency response. All external capacitors should have appropriate
voltage ratings and be located as close to the converter as possible.
Temperature variations for all relevant parameters should also be taken
carefully into consideration.
Output Overvoltage Protection
UHE output voltages are monitored for an overvoltage condition via mag-
netic feedback. The signal is coupled to the primary side and if the output
voltage rises to a level which could be damaging to the load, 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 condi-
tion 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.
The most effective combination of external I/O capacitors will be a function
of line voltage and source impedance, as well as particular load and layout
conditions. Our Applications Engineers can recommend potential solutions
and discuss the possibility of our modifying a given device's internal filter-
ing to meet your specific requirements. Contact our Applications Engineer-
ing Group for additional details.
Contact DATEL for an optional output overvoltage monitor circuit using a
comparator which is optically coupled to the primary side thus allowing
tighter and more precise control.
Current Limiting
In Figure 3, the two copper strips simulate real-world pcb impedances
between the power supply and its load. In order to minimize measurement
errors, scope measurements should be made using BNC connectors, or
the probe ground should be less than ½ inch and soldered directly to the
fixture.
As soon as the output current increases to ꢀ0% to 50% above its rated
value, 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 somewhat constant power dissipation.
This is commonly referred to as power limiting. Current limit inception is
defined as the point at which 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 as specified under "Performance."
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "floating" with
respect to their input. Designers will normally use the –Output (pin 7) as the
ground/return of the load circuit. You can, however, use the +Output (pin 6)
as ground/return to effectively reverse the output polarity.
DC/DC CONVERTERS
MDC_UHE_A01 Page 5 of ꢀ4
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UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
Short Circuit Condition
Trimming Output Voltage
When a converter is in current-limit mode, the output voltage 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. Following a
time-out period, the PWM will restart causing the output voltages to begin
ramping to their appropriate values. 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 UHE is capable of enduring an indefinite short circuit output condition.
UHE converters have a trim capability (pin 9) that allows users to adjust
the output voltages 5% of VOUT ( ꢀ0% for T models). Adjustments to the
output voltages can be accomplished via a trim pot (Figure 6) or a single
fixed resistor as shown in Figures 7 and 8. A single fixed resistor can
increase or decrease the output voltage depending on its connection. The
resistor should be located close to the converter and have a TCR less than
ꢀ00ppm/°C to minimize sensitivity to changes in temperature. If the trim
function is not used, leave the trim pin floating.
A single resistor connected from the Trim (pin 9) to the +Output (pin 6), or
+Sense where applicable, will decrease the output voltage for all models
with the exception of the ꢀ.2V models, which will increase the output
voltage in this configuration. A resistor connected from the Trim (pin 9) to
the –Output (pin 7), or –Sense where applicable, will increase the output
voltage for all models with the exception of the ꢀ.2V models, which will
decrease the output voltage in this configuration.
FEATURES AND OPTIONS
On/Off Control
The input-side, remote On/Off Control function (pin 4) can be ordered to
operate with either polarity:
Standard models are equipped with Positive-polarity (no part-number
suffix) and these devices are enabled when pin 4 is left open (or is pulled
high, applying +ꢀ3V to +VIN with respect to –Input, pin 2) as per Figure 4.
Positive-polarity devices are disabled when pin 4 is pulled low (0 to 0.8V
with respect to –Input).
Trim adjustments greater than the specified 5% can have an adverse
affect on the converter's performance and are not recommended. Exces-
sive voltage differences between VOUT and Sense, in conjunction with trim
adjustment of the output voltage, can cause the overvoltage protection
circuitry to activate (see Performance Specifications for overvoltage limits).
Power derating is based on maximum output current and voltage at the
converter's output pins. Use of trim and sense functions can cause output
voltages to increase, thereby increasing output power beyond the con-
verter's specified rating or cause output voltages to climb into the output
overvoltage region. Therefore:
Optional Negative-polarity devices ("N" suffix) are off when pin 4 is left
open (or pulled high, applying +3.5V to +VIN), and on when pin 4 is pulled
low (0 to 0.8V) with respect to –VIN as shown in Figure 5.
+INPUT
1
(VOUT at pins) x (IOUT) <= rated output power
13V CIRCUIT
5V CIRCUIT
4
ON/OFF
CONTROL
6
2
+OUTPUT
–INPUT
5
+SENSE
20k7
–INPUT
9
8
7
4
1
2
ON/OFF
CONTROL
TRIM
–SENSE
5-22
LOAD
TURNS
Figure 4. Driving the Positive Polarity On/Off Control Pin
+INPUT
–OUTPUT
+INPUT
1
4
+VCC
Figure 6. Trim Connections Using A Trimpot
ON/OFF
CONTROL
6
2
4
+OUTPUT
–INPUT
5
9
8
7
+SENSE
TRIM
–INPUT
2
ON/OFF
CONTROL
LOAD
R1
–SENSE
–OUTPUT
Figure 5. Driving the Negative Polarity On/Off Control Pin
1
+INPUT
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 4 when no
input power is applied to the converter can cause permanent damage to
the converter.
Figure 7. Trim Connections To Decrease Output Voltages Using a Fixed Resistor
(for all models except 1.2V models which will increase VOUT)
DC/DC CONVERTERS
MDC_UHE_A01 Page 6 of ꢀ4
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UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
UHE-3.3/7500-D48T
6
2
+OUTPUT
–INPUT
Trim Up R1 (k7) = (2.54/y – 4.08)/2 where y = (3.3 – VO)/3.3
Trim Down R2 (k7) = 1.55/2y where y = (VO – 3.3)/3.3
5
+SENSE
4
1
9
8
7
ON/OFF
CONTROL
TRIM
–SENSE
LOAD
UHE-5/6000-Q48T, -D48T
R2
Trim Up R1 (k7) = 1.25/y – 2.69 where y = (5 – VO)/5
Trim Down R2 (k7) = 1.25/y where y = (VO – 5)/5
+INPUT
–OUTPUT
Note: Resistor values are in kΩ. Adjustment accuracy is subject to resistor
tolerances and factory-adjusted output accuracy. VO = desired output volt-
age.
Figure 8. Trim Connections To Increase Output Voltages
(for all models except 1.2V models which will decrease VOUT)
Remote Sense (Optional on 1.2-5VOUT models)
Note: The Sense and VOUT lines are internally connected through ꢀ0Ω resis-
tors. Nevertheless, if the sense function is not used for remote regulation
the user should connect the +Sense to +VOUT and –Sense to –VOUT at the
DC/DC converter pins.
Trim Equations
4RIM 5P
4RIM $OWN
5(%ꢀꢁꢂꢆꢄꢁꢅꢅꢅꢅꢀ$ꢁꢆꢇ ꢀ$ꢆꢈꢇ ꢀ$ꢈꢉ
UHE series converters have a sense feature to provide point of use regula-
tion, thereby overcoming moderate IR drops in pcb conductors or cabling.
The remote sense lines carry very little current and therefore require minimal
cross-sectional-area conductors. The sense lines are used by the feedback
control-loop to regulate the output. As such, they are not low impedance
points and must be treated with care in layouts and cabling. Sense lines
on a pcb should be run adjacent to dc signals, preferably ground. In cables
and discrete wiring applications, twisted pair or other techniques should be
implemented.
ꢂꢁꢀꢅꢍꢈ6/ n ꢅꢁꢌꢄꢀꢉ
6/ n ꢂꢁꢆ
ꢂꢁꢅꢀꢌ
2ꢂ ꢈK7ꢉ ꢊ
nꢂꢁꢋꢂꢀ
nꢂꢁꢋꢂꢀ
2ꢆ ꢈK7ꢉ ꢊ
ꢂꢁꢆ n 6/
4RIM $OWN
4RIM 5P
5(%ꢀꢁꢂꢃꢄꢁꢅꢅꢅꢅꢀ$ꢁꢆꢇ ꢀ$ꢆꢈꢇ ꢀ$ꢈꢉ
ꢅꢁꢀꢆꢀꢆ
ꢅꢁꢋꢇꢄꢈ6/ n ꢅꢁꢌꢅꢄꢃꢉ
nꢀꢁꢂꢃꢄ
nꢌꢁꢇꢄꢃ
nꢌꢁꢇꢅꢀ
nꢆꢆꢁꢋꢆ
nꢂꢇꢁꢇꢆ
nꢀꢋꢁꢍ
nꢀꢁꢂꢃꢄ
2ꢂ ꢈK7ꢉ ꢊ
2ꢆ ꢈK7ꢉ ꢊ
6/ n ꢂꢁꢇ
ꢂꢁꢇ n 6/
UHE series converters will compensate for drops between the output
voltage at the DC/DC and the sense voltage at the DC/DC provided that:
5(%ꢀꢁꢂꢉꢄꢁꢅꢅꢅꢅꢀ$ꢁꢆꢇ ꢀ$ꢆꢈꢇ ꢀ$ꢈꢉ
[VOUT(+) –VOUT(–)] –[Sense(+) –Sense (–)] ≤ 5% VOUT
ꢅꢁꢄꢃꢋꢌ
ꢂꢁꢅꢆꢌꢈ6/ n ꢅꢁꢄꢀꢇꢆꢉ
nꢌꢁꢇꢄꢃ
2ꢂ ꢈK7ꢉ ꢊ
2ꢂ ꢈK7ꢉ ꢊ
2ꢆ ꢈK7ꢉ ꢊ
6/ n ꢂꢁꢍ
ꢂꢁꢍ n 6/
Output overvoltage protection is monitored at the output voltage pin, not
the Sense pin. Therefore, excessive voltage differences between VOUT and
Sense in conjunction with trim adjustment of the output voltage can cause
5(%ꢀꢆꢂꢃꢄꢁꢅꢅꢅꢅꢀ$ꢁꢆꢇ ꢀ$ꢆꢈꢇ ꢀ$ꢈꢉ
ꢆꢁꢆꢆꢃꢈ6/ n ꢅꢁꢄꢃꢆꢇꢉ
ꢆꢁꢂꢋꢆ
Contact and PCB resistance
nꢌꢁꢇꢅꢀ
2ꢆ ꢈK7ꢉ ꢊ
losses due to IR drops
6
ꢆꢁꢇ n 6/
6/ n ꢆꢁꢇ
2
+OUTPUT
–INPUT
5(%ꢀꢊꢂꢊꢄꢋꢃꢅꢅꢀ1ꢁꢆꢇ ꢀ1ꢆꢈꢇ ꢀ$ꢈꢉ
IOUT
5
+SENSE
ꢇꢁꢃꢇ
ꢀꢁꢆꢂꢈ6/ n ꢂꢁꢌꢇꢄꢉ
nꢆꢆꢁꢋꢆ
Sense Current
2ꢂ ꢈK7ꢉ ꢊ
2ꢂ ꢈK7ꢉ ꢊ
2ꢂ ꢈK7ꢉ ꢊ
2ꢂ ꢈK7ꢉ ꢊ
2ꢆ ꢈK7ꢉ ꢊ
6/ n ꢀꢁꢀ
4
ꢀꢁꢀ n 6/
ON/OFF
CONTROL
9
8
TRIM
–SENSE
LOAD
Sense Return
5(%ꢀꢃꢄꢃꢅꢅꢅꢀ1ꢁꢆꢇ ꢀ1ꢈꢉꢇ 5(%ꢀꢃꢄꢌꢅꢅꢅꢀ$ꢈꢉꢇ ꢀ1ꢈꢉ
IOUT Return
ꢇꢁꢇꢍ
ꢆꢁꢂꢇꢈ6/ n ꢆꢁꢇꢄꢆꢉ
ꢇ n 6/
1
nꢂꢇꢁꢇꢆ
2ꢆ ꢈK7ꢉ ꢊ
7
+INPUT
–OUTPUT
6/ n ꢇ
Contact and PCB resistance
losses due to IR drops
5(%ꢀꢁꢆꢄꢆꢃꢅꢅꢀ$ꢁꢆꢇ ꢀ$ꢆꢈꢇ ꢀ$ꢈꢉꢇ ꢀ1ꢁꢆꢇ ꢀ1ꢈꢉ
ꢆꢄꢁꢇ
6/ n ꢂꢆ
Figure 9. Remote Sense Circuit Configuration
ꢂꢅꢈ6/ n ꢆꢁꢇꢉ
ꢂꢆ n 6/
nꢀꢋꢁꢍ
2ꢆ ꢈK7ꢉ ꢊ
the overvoltage protection circuitry to activate (see Performance Specifica-
tions for overvoltage limits). Power derating is based on maximum output
current and voltage at the converter’s output pins. Use of trim and sense
functions can cause output voltages to increase thereby increasing output
power beyond the UHE’s specified rating or cause output voltages to climb
into the output overvoltage region. Therefore, the designer must ensure:
5(%ꢀꢁꢃꢄꢆꢅꢅꢅꢀ$ꢁꢆꢇ ꢀ$ꢆꢈꢇ ꢀ$ꢈꢉꢇ ꢀ1ꢁꢆꢇ ꢀ1ꢈꢉ
ꢀꢌꢁꢍꢌꢇ
6/ n ꢂꢇ
ꢂꢀꢁꢀꢈ6/ n ꢆꢁꢇꢉ
ꢂꢇ n 6/
nꢋꢀꢁꢀ
nꢋꢀꢁꢀ
2ꢆ ꢈK7ꢉ ꢊ
(VOUT at pins) x (IOUT) ≤ rated output power
DC/DC CONVERTERS
MDC_UHE_A01 Page 7 of ꢀ4
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UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
T Y P I C A L P E R F O R M A N C E C U R V E S
5(%ꢀꢁꢂꢃꢄꢁꢅꢅꢅꢅꢀ$ꢆꢇ %FFICIENCY VSꢂ ,OAD ꢈꢆꢃ # !MBIENT
5(%ꢀꢁꢂꢃꢄꢁꢅꢅꢅꢅꢀ$ꢆꢇ %FFICIENCY VSꢂ ,OAD ꢈꢆꢉ # !MBIENT
ꢀꢁ
ꢂꢃ
ꢂꢁ
ꢀꢁ
ꢂꢃ
ꢂꢁ
6). ꢁ ꢄꢅ6
6). ꢁ ꢄꢅ6
ꢄꢃ
ꢄꢁ
ꢅꢃ
ꢄꢃ
ꢄꢁ
ꢅꢃ
6
). ꢁ ꢆꢇ6
6). ꢁ ꢆꢇ6
6
). ꢁ ꢂꢃ6
6
). ꢁ ꢂꢃ6
ꢆ
ꢇ
ꢈ
ꢉ
ꢃ
ꢅ
ꢄ
ꢂ
ꢀ
ꢆꢁ
ꢆ
ꢇ
ꢈ
ꢉ
ꢃ
ꢅ
ꢄ
ꢂ
ꢀ
ꢆꢁ
/UTPUT #URRENT ꢉ!MPSꢊ
/UTPUT #URRENT ꢊ!MPSꢋ
5(%ꢀꢁꢂꢃꢄꢁꢅꢅꢅꢅꢀ$ꢆꢇ %FFICIENCY VSꢂ ,OAD ꢈꢉꢃ # !MBIENT
5(%ꢀꢁꢂꢃꢄꢁꢅꢅꢅꢅꢀ$ꢆꢃ %FFICIENCY VSꢂ ,OAD ꢇꢈꢉ # !MBIENT
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
ꢄꢁ
ꢄꢂ
ꢁꢁ
ꢀꢁ
ꢂꢃ
ꢂꢁ
ꢄꢃ
ꢄꢁ
ꢅꢃ
ꢅꢁ
ꢃꢃ
6
). ꢁ ꢄꢅ6
6
). ꢁ ꢄꢅ6
6
). ꢁ ꢆꢇ6
6
). ꢁ ꢆꢇ6
6
). ꢁ ꢂꢃ6
6
). ꢁ ꢂꢃ6
ꢅ
ꢆ
ꢇ
ꢈ
ꢁ
ꢄ
ꢃ
ꢀ
ꢉ
ꢅꢂ
ꢆ
ꢇ
ꢈ
ꢉ
ꢃ
ꢅ
ꢄ
ꢂ
ꢀ
ꢆꢁ
/UTPUT #URRENT ꢊ!MPSꢋ
/UTPUT #URRENT ꢊ!MPSꢋ
5(%ꢂꢃꢄꢅꢆꢇꢈꢈꢈꢈꢂ$ꢉꢊ %FFICIENCY VSꢄ ,OAD ꢋꢃꢅ # !MBIENT
ꢀꢁ
ꢂꢂ
ꢂꢃ
ꢂꢄ
ꢂꢅ
ꢂꢁ
ꢆꢂ
ꢆꢃ
6
). ꢁ ꢄꢅ6
6). ꢁ ꢆꢇ6
6
). ꢁ ꢂꢃ6
ꢇ
ꢅꢈꢂ
ꢄꢈꢃ
ꢃꢈꢄ
ꢂꢈꢅ
ꢇꢁ
/UTPUT #URRENT ꢀ!MPSꢁ
DC/DC CONVERTERS
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UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
5(%ꢀꢁꢂꢁꢃꢄꢅꢆꢆꢀ1ꢇꢈ %FFICIENCY VSꢂ ,OAD ꢉꢈꢅ # !MBIENT
5(%ꢀꢁꢂꢁꢃꢃꢃꢀ1ꢄꢅ %FFICIENCY VSꢆ ,OAD ꢇꢅꢁ # !MBIENT
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
6). ꢁ ꢄ6
6). ꢁ ꢄ6
ꢄꢁ
ꢄꢂ
ꢅꢁ
ꢄꢁ
ꢄꢂ
ꢅꢁ
6
). ꢁ ꢅꢆ6
6
). ꢁ ꢅꢆ6
6
). ꢁ ꢂꢃ6
6
). ꢁ ꢂꢃ6
ꢂꢆꢄꢁ
ꢇꢆꢁ
ꢈꢆꢈꢁ
ꢉ
ꢉꢆꢄꢁ
ꢊꢆꢁ
ꢁꢆꢈꢁ
ꢅ
ꢅꢆꢄꢁ
ꢄꢆꢁ
ꢄꢈꢆ
ꢄꢈꢆ
ꢂꢆꢁ
ꢇꢆꢂ
ꢇꢆꢁ
ꢈ
ꢈꢆꢁ
ꢉ
ꢉꢆꢁ
ꢊ
ꢊꢆꢁ
ꢁ
/UTPUT #URRENT ꢊ!MPSꢋ
/UTPUT #URRENT ꢈ!MPSꢉ
5(%ꢀꢁꢂꢁꢃꢃꢃꢀ1ꢄꢅ %FFICIENCY VSꢆ ,OAD ꢇꢈꢁ # !MBIENT
5(%ꢀꢁꢂꢁꢃꢄꢅꢆꢆꢀ1ꢇꢈ %FFICIENCY VSꢂ ,OAD ꢉꢊꢅ # !MBIENT
ꢀꢁꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁ
ꢇꢁ
ꢀꢁꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁ
ꢇꢁ
6
). ꢁ ꢈꢇ6
). ꢁ ꢄꢅ6
). ꢁ ꢆꢇ6
6
). ꢁ ꢈꢇ6
). ꢁ ꢄꢅ6
). ꢁ ꢆꢇ6
6
6
6
6
6). ꢁ ꢂꢃ6
6
). ꢁ ꢂꢃ6
ꢁꢈꢆ
ꢀ
ꢀꢈꢆ
ꢉ
ꢉꢈꢆ
ꢊ
ꢊꢈꢆ
ꢇ
ꢇꢈꢆ
ꢆ
ꢁꢈꢄꢆ
ꢀꢈꢆ
ꢉꢈꢉꢆ
ꢊ
ꢊꢈꢄꢆ
ꢇꢈꢆ
ꢆꢈꢉꢆ
ꢅ
ꢅꢈꢄꢆ
/UTPUT #URRENT ꢉ!MPSꢊ
/UTPUT #URRENT ꢋ!MPSꢌ
5(%ꢀꢁꢂꢁꢃꢄꢅꢆꢆꢀ$ꢇꢈ %FFICIENCY VSꢂ ,OAD ꢉꢊꢅ # !MBIENT
5(%ꢀꢁꢂꢃꢄꢄꢄꢀ$ꢅꢆ %FFICIENCY VSꢇ ,OAD ꢈꢉꢁ # !MBIENT
ꢀꢁꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁ
ꢇꢁ
ꢀꢁꢁ
ꢂꢁ
ꢃꢁ
ꢄꢁ
ꢅꢁ
ꢆꢁ
ꢇꢁ
6
). ꢁ ꢄꢅ6
6
). ꢁ ꢄꢅ6
6
). ꢁ ꢆꢇ6
6
). ꢁ ꢆꢇ6
6
). ꢁ ꢂꢃ6
6
). ꢁ ꢂꢃ6
ꢁꢈꢅ
ꢀꢈꢉ
ꢀꢈꢃ
ꢉꢈꢇ
ꢊ
ꢊꢈꢅ
ꢇꢈꢉ
ꢇꢈꢃ
ꢆꢈꢇ
ꢅ
ꢁꢈꢄꢆ
ꢀꢈꢆ
ꢉꢈꢉꢆ
ꢊ
ꢊꢈꢄꢆ
ꢇꢈꢆ
ꢆꢈꢉꢆ
ꢅ
ꢅꢈꢄꢆ
/UTPUT #URRENT ꢋ!MPSꢌ
/UTPUT #URRENT ꢊ!MPSꢋ
DC/DC CONVERTERS
MDC_UHE_A01 Page 9 of ꢀ4
www.cd4power.com
UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
5(%ꢀꢁꢂꢃꢂꢄꢅꢅꢀ$ꢁꢂ %FFICIENCY VSꢆ ,OAD ꢇꢂꢄ # !MBIENT
5(%ꢀꢁꢂꢃꢄꢅꢅꢅꢀ$ꢁꢄ %FFICIENCY VSꢆ ,OAD ꢇꢄꢂ # !MBIENT
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
6). ꢁ ꢄ6
6). ꢁ ꢄ6
ꢄꢁ
ꢄꢂ
ꢅꢁ
ꢄꢁ
ꢄꢂ
ꢅꢁ
6
). ꢁ ꢂꢅ6
6
). ꢁ ꢂꢅ6
6
). ꢁ ꢂꢃ6
6
). ꢁ ꢂꢃ6
ꢂꢆꢇꢁ
ꢂꢆꢁ
ꢂꢆꢄꢁ
ꢈ
ꢈꢆꢇꢁ
ꢈꢆꢁ
ꢈꢆꢄꢁ
ꢇ
ꢇꢆꢇꢁ
ꢇꢆꢁ
ꢇꢆꢁ
ꢇꢆꢁ
ꢂꢆꢇ
ꢂꢆꢈ
ꢂꢆꢅ
ꢂꢆꢃ
ꢉ
ꢉꢆꢇ
ꢉꢆꢈ
ꢉꢆꢅ
ꢉꢆꢃ
ꢇ
ꢇ
ꢇ
/UTPUT #URRENT ꢈ!MPSꢉ
/UTPUT #URRENT ꢈ!MPSꢉ
5(%ꢀꢁꢂꢃꢂꢄꢅꢅꢀ$ꢂꢆ %FFICIENCY VSꢇ ,OAD ꢈꢂꢄ # !MBIENT
5(%ꢀꢁꢂꢃꢄꢅꢅꢅꢀ$ꢄꢆ %FFICIENCY VSꢇ ,OAD ꢈꢄꢂ # !MBIENT
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
ꢄꢁ
ꢄꢂ
ꢅꢁ
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
ꢄꢁ
ꢄꢂ
ꢅꢁ
6
). ꢁ ꢄꢅ6
6
). ꢁ ꢄꢅ6
6). ꢁ ꢆꢇ6
6). ꢁ ꢆꢇ6
6). ꢁ ꢂꢃ6
6). ꢁ ꢂꢃ6
ꢂꢆꢇꢁ
ꢂꢆꢁ
ꢂꢆꢄꢁ
ꢈ
ꢈꢆꢇꢁ
ꢈꢆꢁ
ꢈꢆꢄꢁ
ꢇ
ꢇꢆꢇꢁ
ꢂꢆꢇ
ꢂꢆꢈ
ꢂꢆꢅ
ꢂꢆꢃ
ꢉ
ꢉꢆꢇ
ꢉꢆꢈ
ꢉꢆꢅ
ꢉꢆꢃ
/UTPUT #URRENT ꢉ!MPSꢊ
/UTPUT #URRENT ꢉ!MPSꢊ
5(%ꢀꢁꢂꢃꢄꢅꢅꢅꢀ$ꢆꢇ %FFICIENCY VSꢈ ,OAD ꢉꢄꢂ # !MBIENT
5(%ꢀꢁꢂꢃꢂꢄꢅꢅꢀ$ꢆꢇ %FFICIENCY VSꢈ ,OAD ꢉꢂꢄ # !MBIENT
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
ꢄꢁ
ꢄꢂ
ꢅꢁ
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
ꢄꢁ
ꢄꢂ
ꢅꢁ
6
). ꢁ ꢄꢅ6
6
). ꢁ ꢄꢅ6
6). ꢁ ꢆꢇ6
6). ꢁ ꢆꢇ6
6). ꢁ ꢂꢃ6
6). ꢁ ꢂꢃ6
ꢂꢆꢇ
ꢂꢆꢈ
ꢂꢆꢅ
ꢂꢆꢃ
ꢉ
ꢉꢆꢇ
ꢉꢆꢈ
ꢉꢆꢅ
ꢉꢆꢃ
ꢂꢆꢇꢁ
ꢂꢆꢁ
ꢂꢆꢄꢁ
ꢈ
ꢈꢆꢇꢁ
ꢈꢆꢁ
ꢈꢆꢄꢁ
ꢇ
ꢇꢆꢇꢁ
/UTPUT #URRENT ꢊ!MPSꢋ
/UTPUT #URRENT ꢊ!MPSꢋ
DC/DC CONVERTERS
MDC_UHE_A01 Page ꢀ0 of ꢀ4
www.cd4power.com
UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
5(%ꢀꢁꢂꢀꢂꢃꢄꢄꢀ1ꢅꢆ %FFICIENCY VSꢇ ,OAD ꢈꢂꢃ # !MBIENT
5(%ꢀꢁꢂꢀꢃꢄꢄꢄꢀ1ꢅꢆ %FFICIENCY VSꢇ ,OAD ꢈꢃꢂ # !MBIENT
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
6). ꢁ ꢄꢅ6
ꢃꢂ
ꢄꢁ
ꢄꢂ
ꢅꢁ
6
). ꢁ ꢄꢅ6
6
). ꢁ ꢆꢅ6
ꢄꢁ
ꢄꢂ
ꢅꢁ
6
). ꢁ ꢆꢅ6
6
). ꢁ ꢂꢃ6
6
). ꢁ ꢂꢃ6
ꢂꢆꢇꢁ
ꢂꢆꢁ
ꢂꢆꢄꢁ
ꢈ
ꢈꢆꢇꢁ
ꢈꢆꢁ
ꢈꢆꢄꢁ
ꢇ
ꢇꢆꢇꢁ
ꢇꢆꢁ
ꢂꢆꢇ
ꢂꢆꢈ
ꢂꢆꢅ
ꢂꢆꢃ
ꢉ
ꢉꢆꢇ
ꢉꢆꢈ
ꢉꢆꢅ
ꢉꢆꢃ
ꢇ
/UTPUT #URRENT ꢉ!MPSꢊ
/UTPUT #URRENT ꢉ!MPSꢊ
5(%ꢂꢃꢄꢅꢆꢃꢇꢇꢇꢇꢂ$ꢅꢈ AND 5(%ꢂꢃꢄꢉꢆꢃꢇꢇꢇꢇꢂ$ꢅꢈ 4EMPERATURE $ERATING
5(%ꢂꢃꢄꢅꢆꢃꢇꢇꢇꢇꢂ$ꢈꢉ 4EMPERATURE $ERATING
ꢀꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢆ
ꢇ
ꢈ
ꢉ
ꢀ
ꢁ
ꢀꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢆ
ꢇ
ꢈ
ꢉ
ꢀ
ꢁ
ꢉꢇ6).ꢊ 34),, !)2
ꢉꢇ6).ꢊ ꢀꢆꢁ,&-
ꢉꢇ6).ꢊ 34),, !)2
ꢉꢇ6).ꢊ ꢀꢆꢁ,&-
ꢉꢇ6).ꢊ ꢈꢁꢁ,&-
ꢉꢇ6).ꢊ ꢈꢁꢁ,&-
nꢇꢁ
ꢁ
ꢇꢁ
ꢇꢆ
ꢆꢁ
ꢆꢆ
ꢅꢁ
ꢅꢆ
ꢄꢁ
ꢄꢆ
ꢃꢁ
ꢃꢆ
ꢂꢁ
ꢂꢆ
ꢀꢁꢁ
nꢇꢁ
ꢁ
ꢇꢁ
ꢇꢆ
ꢆꢁ
ꢆꢆ
ꢅꢁ
ꢅꢆ
ꢄꢁ
ꢄꢆ
ꢃꢁ
ꢃꢆ
ꢂꢁ
ꢂꢆ
ꢀꢁꢁ
!MBIENT 4EMPERATURE ꢀo#ꢁ
!MBIENT 4EMPERATURE ꢀo#ꢁ
5(%ꢂꢃꢄꢅꢆꢃꢇꢇꢇꢇꢂ$ꢈꢉ AND 5(%ꢂꢃꢄꢊꢆꢃꢇꢇꢇꢇꢂ$ꢈꢉ 4EMPERATURE $ERATING
5(%ꢂꢃꢄꢅꢆꢃꢇꢇꢇꢇꢂ$ꢈꢅ 4EMPERATURE $ERATING
ꢀꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢆ
ꢇ
ꢈ
ꢉ
ꢀ
ꢁ
ꢀꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢆ
ꢇ
ꢈ
ꢉ
ꢀ
ꢁ
ꢄꢆ6).ꢊ 34),, !)2
ꢇꢃ6).ꢊ 34),, !)2
ꢄꢆ6).ꢊ ꢀꢆꢁ,&-
ꢇꢃ6).ꢊ 34),, !)2
ꢇꢃ6).ꢊ ꢀꢆꢁ,&-
ꢇꢃ6).ꢊ ꢈꢁꢁ,&-
ꢇꢃ6).ꢊ ꢀꢆꢁ,&-
ꢇꢃ6).ꢊ ꢈꢁꢁ,&-
nꢇꢁ
ꢁ
ꢇꢁ
ꢇꢆ
ꢆꢁ
ꢆꢆ
ꢅꢁ
ꢅꢆ
ꢄꢁ
ꢄꢆ
ꢃꢁ
ꢃꢆ
ꢂꢁ
ꢂꢆ
ꢀꢁꢁ
nꢇꢁ
ꢁ
ꢇꢁ
ꢇꢆ
ꢆꢁ
ꢆꢆ
ꢅꢁ
ꢅꢆ
ꢄꢁ
ꢄꢆ
ꢃꢁ
ꢃꢆ
ꢂꢁ
ꢂꢆ
ꢀꢁꢁ
!MBIENT 4EMPERATURE ꢀo#ꢁ
!MBIENT 4EMPERATURE ꢀo#ꢁ
DC/DC CONVERTERS
MDC_UHE_A01 Page ꢀꢀ of ꢀ4
www.cd4power.com
UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, .6" x 2" 2- 0 Amp, 2-30 Watt DC/DC's
5(%ꢂꢃꢄꢅꢆꢇꢈꢈꢈꢈꢂ$ꢉꢊ 4EMPERATURE $ERATING
5(%ꢂꢃꢄꢃꢅꢅꢅꢂ1ꢆꢇ 4EMPERATURE $ERATING
ꢀꢁ
ꢀꢁ
ꢊꢅ6).ꢉ 34),, !)2
ꢂꢃ
ꢂꢁ
ꢀꢂ
ꢀꢄ6).ꢉ 34),, !)2
ꢊꢅ6).ꢉ ꢃꢁꢂ,&-
.!452!, #/.6%#4)/.
ꢃꢁ
ꢀꢄ6).ꢉ ꢃꢁꢂ,&-
ꢄꢃ
ꢄꢁ
ꢃ
ꢊꢅ6).ꢉ ꢊꢂꢂ,&-
ꢃꢂ
ꢀꢄ6).ꢉ ꢊꢂꢂ,&-
ꢁ
ꢂ
ꢁ
nꢅꢁ
ꢁ
ꢅꢁ
ꢅꢃ
ꢃꢁ
ꢃꢃ
ꢆꢁ
ꢆꢃ
ꢇꢁ
ꢇꢃ
ꢈꢁ
ꢈꢃ
ꢉꢁ
ꢉꢃ
ꢄꢁꢁ
nꢄꢂ
ꢂ
ꢄꢂ
ꢄꢁ
ꢁꢂ
ꢁꢁ
ꢅꢂ
ꢅꢁ
ꢆꢂ
ꢆꢁ
ꢇꢂ
ꢇꢁ
ꢈꢂ
ꢈꢁ
ꢃꢂꢂ
!MBIENT 4EMPERATURE ꢀo#ꢁ
!MBIENT 4EMPERATURE ꢀo#ꢁ
5(%ꢂꢃꢄꢃꢅꢆꢇꢈꢈꢂ1ꢉꢊ 4EMPERATURE $ERATING
5(%ꢂꢃꢄꢅꢆꢆꢆꢂ$ꢇꢈ 4EMPERATURE $ERATING
ꢀꢁ
ꢀꢂ
ꢃꢁ
ꢃꢂ
ꢁ
ꢀꢁ
ꢂꢃ
ꢂꢁ
ꢄꢃ
ꢄꢁ
ꢃ
ꢇꢃ6).ꢊ 34),, !)2
ꢅꢈ6).ꢊ 34),, !)2
ꢀꢆ6).ꢊ 34),, !)2
ꢊꢅ6).ꢉ 34),, !)2
ꢀꢄ6).ꢉ 34),, !)2
ꢊꢅ6).ꢉ ꢃꢁꢂ,&-
ꢇꢃ6).ꢊ ꢄꢃꢁ,&-
ꢇꢃ6).ꢊ ꢀꢁꢁ,&-
ꢀꢄ6).ꢉ ꢃꢁꢂ,&-
ꢊꢅ6).ꢉ ꢊꢂꢂ,&-
ꢀꢄ6).ꢉ ꢊꢂꢂ,&-
ꢂ
ꢁ
nꢄꢂ
ꢂ
ꢄꢂ
ꢄꢁ
ꢁꢂ
ꢁꢁ
ꢅꢂ
ꢅꢁ
ꢆꢂ
ꢆꢁ
ꢇꢂ
ꢇꢁ
ꢈꢂ
ꢈꢁ
ꢃꢂꢂ
nꢅꢁ
ꢁ
ꢅꢁ
ꢅꢃ
ꢃꢁ
ꢃꢃ
ꢆꢁ
ꢆꢃ
ꢇꢁ
ꢇꢃ
ꢈꢁ
ꢈꢃ
ꢉꢁ
ꢉꢃ
ꢄꢁꢁ
!MBIENT 4EMPERATURE ꢀo#ꢁ
!MBIENT 4EMPERATURE ꢀo#ꢁ
5(%ꢂꢃꢄꢅꢄꢆꢇꢇ AND 5(%ꢂꢃꢆꢅꢄꢇꢇꢇ ꢀ!LL -ODELSꢁ 4EMPERATURE $ERATING
5(%ꢂꢃꢄꢃꢅꢆꢇꢈꢈꢂ$ꢉꢊ 4EMPERATURE $ERATING
ꢀꢁ
ꢂꢃ
ꢂꢁ
ꢄꢃ
ꢄꢁ
ꢃ
ꢀꢁ
ꢂꢃ
ꢂꢁ
ꢄꢃ
ꢄꢁ
ꢃ
ꢄꢂ6).ꢊ 34),, !)2
ꢇꢃ6).ꢊ 34),, !)2
ꢅꢈ6).ꢊ 34),, !)2
ꢀꢆ6).ꢊ 34),, !)2
ꢂꢅ6).ꢊ 34),, !)2
ꢋꢅꢈ6).ꢊ 3TILL !IR FOR 1ꢅꢈ -ODELS /NLYꢌ
ꢅꢈ6).ꢊ 34),, !)2
ꢋ$ꢅꢈ -ODELS /NLYꢌ
ꢇꢃ6).ꢊ ꢄꢃꢁ,&-
ꢇꢃ6).ꢊ ꢀꢁꢁ,&-
ꢁ
ꢁ
nꢅꢁ
ꢁ
ꢅꢁ
ꢅꢃ
ꢃꢁ
ꢃꢃ
ꢆꢁ
ꢆꢃ
ꢇꢁ
ꢇꢃ
ꢈꢁ
ꢈꢃ
ꢉꢁ
ꢉꢃ
ꢄꢁꢁ
nꢅꢁ
ꢁ
ꢅꢁ
ꢅꢃ
ꢃꢁ
ꢃꢃ
ꢆꢁ
ꢆꢃ
ꢇꢁ
ꢇꢃ
ꢈꢁ
ꢈꢃ
ꢉꢁ
ꢉꢃ
ꢄꢁꢁ
!MBIENT 4EMPERATURE ꢀo#ꢁ
!MBIENT 4EMPERATURE ꢀo#ꢁ
DC/DC CONVERTERS
MDC_UHE_A01 Page 2 of
4
www.cd4power.com
UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
PART NUMBER STRUCTURE
U HE - 3.3 / 7500 - D48 R - LX T - C
RoHS-6 compliant*
Output Configuration:
U = Unipolar
Optional Functions
High Efficiency
Note:
Nominal Output Voltage:
ꢀ.2, ꢀ.5, ꢀ.8, 2.5, 3.3, 5,
ꢀ2 or ꢀ5
Not all model number
combinations are available.
Contact C&D.
Maximum Rated Output
Current in mA
Input Voltage Range:
D12 = 9-ꢀ8 Volts (ꢀ2V nominal)
D12 = ꢀ8-36 Volts (24V nominal)
* Contact C&D Technologies for availability.
OPTIONS AND ADAPTATIONS
Suffix Description
Optional Functions and Part Number Suffixes
The versatile UHE, ꢀ2-30W DC/DC converters offer numerous electrical and
mechanical options. Per the Ordering Guide on page 2, the trailing DXX or
QXX (where XX stands for ꢀ2, 24 or 48VIN) in each part number pertains
to the base part number. Part-number suffixes are added after this input
identification, indicating the selection of standard options. The resulting part
number is a "standard product" and is available to any customer desiring
that particular combination of options.
L2
Trim the pin length to 0.ꢀ45 0.0ꢀ0 inches (3.68 0.25mm).
This option requires a ꢀ00-piece minimum order quantity.
T
Alternate trim configuration.
-C
-Y
Full RoHS-6 compliance (no lead).
RoHS-5 hazardous substance compliance with lead exception.
Adaptations
The On/Off Control function on pin 4 employs a positive polarity (on = open
or "high," no suffix). To request a negative polarity on this pin/function, add
an "N" suffix to the part number. Standard models have no pins in the pins 5
and 8 positions. For 5-ꢀ0A models (ꢀ.2-5VOUT), Sense pin/functions can be
added to these positions (see pinout P52) by adding an "R" suffix. An "NR"
suffix can be added for both negative-polarity and sense-pin options. See
below.
There are various additional configurations available on UHE, ꢀ2-30W
DC/DC's. Because designating each of them with a standard part-number
suffix is not always feasible, such are designated by DATEL in assigning a
5-digit "adaptation code" after the part-number suffixes. Once a configura-
tion has been requested by a customer and created by DATEL, the resulting
product is available to any customer as a standard off-the-shelf product.
Contact DATEL directly if you are interested in your own set of options/
adaptations. Our policy for minimum order quantities may apply. Conse-
quently, the following product is offered for sale:
Suffix Description
Blank Positive polarity On/Off Control function (pin 4), VOUT trim (pin 9),
no Sense pins, pin length 0.2 inches (5.08 mm).
UHE-5/6000-D48N-30749
UHE-5/6000-D48N-30749-Y (RoHS-5)
N
R
Add Negative polarity on the On/Off Control function, VOUT trim
(pin 9), no Sense pins.
Standard product, 48VIN, 5V/6A output with negative polarity on the On/Off
Control function, modified Trim function (5% trim up = 9.09kΩ, 5% trim
down = 3.83kΩ, compatible with UEP-30750), integrated soft start and
with input OVP and thermal shutdown removed.
Positive polarity on the On/Off Control function, VOUT trim (pin 9),
Sense pins in the pin 5 and pin 8 positions (available for low
VOUT models only).
NR
L1
Negative polarity on the On/Off Control function, VOUT trim (pin 9),
+/–Sense pins in the pin 5 and pin 8 positions (available for low
VOUT models only).
RoHS-5 compliance refers to the exclusion of the six hazardous sub-
stances in the RoHS specification with the excepion of lead. C&D Technolo-
gies' RoHS-5 products use all the conforming RoHS materials, however our
solders contain lead. RoHS-6 compliance (6 substance) also deletes lead.
Trim the pin length to 0.ꢀꢀ0 0.0ꢀ0 inches (2.79 0.25mm).
This option requires a ꢀ00-piece minimum order quantity.
DC/DC CONVERTERS
MDC_UHE_A01 Page ꢀ3 of ꢀ4
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UHE Series
P O W E R E L E C T R O N I C S D I V I S I O N
Isolated, High Efficiency, ꢀ.6" x 2" 2-ꢀ0 Amp, ꢀ2-30 Watt DC/DC's
USA:
Canada: Toronto, Tel: (866) 740 ꢀ232, email: toronto@cdtechno.com
UK: Milton Keynes, Tel: +44 (0)ꢀ908 6ꢀ5232, email: mk@cdtechno.com
Tucson (Az), Tel: (800) 547 2537, email: sales@cdtechno.com
®
France: Montigny Le Bretonneux, Tel: +33 (0)ꢀ 34 60 0ꢀ 0ꢀ, email: france@cdtechno.com
Germany: München, Tel: +49 (0)89-544334-0, email: ped.munich@cdtechno.com
C&D Technologies, Inc.
ꢀꢀ Cabot Boulevard, Mansfield, MA 02048-ꢀꢀ5ꢀ U.S.A.
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
Japan:
Tokyo, Tel: 3-3779-ꢀ03ꢀ, email: sales_tokyo@cdtechno.com
Osaka, Tel: 6-6354-2025, email: sales_osaka@cdtechno.com
Website: www.cd4power.jp
www.cd4power.com
email: sales@cdtechno.com
China:
Shanghai, Tel: +86 2ꢀ5 027 3678, email: shanghai@cdtechno.com
Guangzhou, Tel: +86 208 22ꢀ 8066, email: guangzhou@cdtechno.com
ISO 9001 REGISTERED
© 2007 C&D Technologies, Inc.
DS-050ꢀB
04/ꢀ3/07
C&D Technologies, Inc. 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.
DC/DC CONVERTERS
MDC_UHE_A01 Page ꢀ4 of ꢀ4
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