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(R)
(R)
PRELIMINARY
INNOVATION and EXCELLENCE
Single Output
UHP Models
3.3 Volts @ 30 Amps 100 Watt, DC/DC Converters
Features
s s s s s s s s s s s s s
Regulated 3.3V output @ 30 Amps Input range: 36V-75V Open frame: 2.3" x 2.4" x 0.47" Industry-standard package/pinout Light weight: 2.24 ounces (63.5g) Remose sense, Trim, On/Off Control High efficiency: 89% Fully isolated, 1500Vdc guaranteed Input under and overvoltage shutdown Output overvoltage protection Short circuit protection; thermal shutdown UL1950 and EN60950 safety approvals CE mark
DATEL's fully isolated UHP series of DC/DC converters affords users a practical solution for their low-voltage/high-current applications. With an input voltage range of 36 to 75 Volts, the UHP-3.3/30-D48 delivers 30 Amps of output current from a fully regulated 3.3V output. Using both surface-mount technology and planar magnetics, these converters are manufactured on a 2.3" x 2.4" open-frame package with an industry-standard pinout configuration. UHP converters utilize a full-bridge, fixed-frequency topology along with synchronous output rectification to achieve a high efficiency of 89%. This efficiency, coupled with the open-frame package that allows unrestricted air flow, reduces internal component temperatures thereby allowing operation at elevated ambient temperatures. These DC/DC's provide output trim, sense pins and primary side on/off control (available with positive or negative logic) or sync. Standard features also include input overvoltage and undervoltage shutdown circuitry, output overvoltage protection, output short-circuit and current limiting protection and thermal shutdown. All devices meet IEC950, UL1950 and EN60950 safety standards and carry the CE mark (meet LVD) requirements). CB reports are available on request.
+INPUT +3.3V OUTPUT
OUTPUT RETURN SECONDARY SWITCH CONTROL
PRIMARY SWITCH CONTROL -INPUT PWM CONTROLLER +SENSE OPTO ISOLATION REFERENCE & ERROR AMP -SENSE
UV & OV COMPARATORS
THERMAL SHUTDOWN
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 * Internet: www.datel.com
XHP Series
3.3V @ 30A, SINGLE OUTPUT DC/DC CONVERTERS
Performance Specifications and Ordering Guide
Output Model
UHP-3.3/30-D48

Input Regulation (Max.) Line
1%
VOUT (Volts)
3.3
IOUT (Amps)
30
R/N (mVp-p) Typ.
80
Max.
120
Load
1%
VIN Nom. (Volts)
48
Range (Volts)
36-75
IIN (mA)
120/2340
Efficiency Min.
86.5
Typ.
88%
Package (Case, Pinout)
C27, P17
Typical at TA = +25C under nominal line voltage and full-load conditions. Ripple/Noise (R/N) measured over a 20MHz bandwidth with 10Ftantalum and 1F ceramic output capacitors. Tested from no load to 100% load. Nominal line voltage, no load/full load condition.
PA R T N U M B E R S T R U C T U R E
UHP - 3.3 / 30 - D48 N
Unipolar High-Power Series Nominal Output Voltage: 3.3 Volts Maximum Output Current: 30 Amps Add "N" or "S" suffix as desired Input Voltage Range: D48 = 36-75 Volts (48V nominal)
Part Number Suffixes
UHP 30 Amp DC/DC's are designed so a negative logic on/off control ("N" suffix) or a Sync function ("S" suffix) can be added in the pin 3 position. No Suffix On/Off Control function (positive polarity) N S Negative polarity on/off control Sync function
M E C H A N I C A L S P E C I FI C A T I O N S
2.30 (58.42)
0.39 (9.91)
STANDOFF WIDTH 0.056 (1.42) 0.120 MIN. (3.05) 1.900 (48.26)
PIN DIAMETERS: PINS 1-4, 6-8 0.040 0.002 (1.016 0.051) PINS 5, 9 0.080 0.002 (2.032 0.051)
I/O Connections Pin 1 2 3 4 5 6 7 8 9 Function P17 -Input No Pin On/Off Control +Input +Output +Sense Trim -Sense -Output
0.20 (5.08)
1
9
8
Case C27
3
7 6 0.400 (10.16) 0.700 (17.78) 1.000 (25.40)
1.400 (35.56)
2.40 (60.96)
4
5 0.50 (12.70) BOTTOM VIEW
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3.3V @ 30A, SINGLE OUTPUT CONVERTERS
UHP Models
Performance/Functional Specifications
Typical @ TA = +25C under nominal line voltage, full-load conditions, unless noted.
DynaEnvironmental
MTBF Bellcore, ground fixed, full power 25C ambient TBD million hours +52C To +100C (See Derating Curves) TBD -40 to +120C
Input
Input Voltage Range Overvoltage Shutdown Start-Up Threshold Undervoltage Shutdown Input Current: Normal Operating Conditions Standby Mode: Off, OV, UV, Thermal Shutdown Input Reflected Ripple Current: Source Impedance Internal Input Filter Type Reverse-Polarity Protection On/Off Control (Pin 3): 36-75 Volts (48V nominal) 77-81 Volts (79V typical) 34-36 Volts (35V typical) 32.5-34.5 Volts (33.5V typical) See Ordering Guide TBD typical <0.1, no external input filtering TBD Pi (0.01F - TBDH - 3.3F) 1 minute duration, 5A maximum On = open or 2.5V to +VIN, IIN = less than 50A Off = 0-0.8V, IIN = 200A @ 0V On = 0-0.8V, IIN = TBD @ 0V Off = open or TBD Volts TBD Volts TBD Volts TBD Volts TBD minimum TBD Volts TBD TBD nsec Dimensions Pin Material Weight: Operating Temperature (Ambient): Without Derating (200lfm) With Derating Thermal Shutdown Storage Temperature
Physical
2.3" x 2.4" x 0.465" (58.4 x 61 x 11.8mm) Brass, solder coated 2.24 ounces (63.5 grams)
Primary to Secondary Insulation Level Operational
All models are specified with external 10F tantalum and 1F ceramic output capacitors. See Technical Notes/Graphs for details. The On/Off Control function can be replaced with a Sync function. See Part Number Suffixes and Technical Notes for details. Applying a voltage to On/Off Control (pin 3) when no input power is applied to the converter can cause permanent damage. Output noise may be further reduced with the installation of additional external output capacitors. See Technical Notes. On/Off control is designed to be driven with open collector or by appropriate voltage levels. Voltages must be referenced to the -Input (pin 1). Demonstrated MTBF available on request.
"N" Suffix Models Sync (Option, Pin 6): Input Threshold Input Voltage Low Input Voltage High Input Resistance Output High Voltage (100A load) Output Drive Current Input/Output Pulse Width VOUT Accuracy: 3.3V Output Minimum Loading Per Specification Ripple/Noise (20MHz BW) Line/Load Regulation Efficiency Output Voltage Sense Range Trim Range Isolation Voltage: Input-to-Output Isolation Resistance Isolation Capacitance Current Limit Inception: 3.3V @ 98.5% VOUT Short Circuit Current: 3.3V Output Overvoltage Protection: 3.3V Output Maximum Capacitive Loading Temperature Coefficient Dynamic Load Response: 3.3V (50-100% load step to 1% VOUT) Start-Up Time: VIN to VOUT On/Off to VOUT Switching Frequency
Absolute Maximum Ratings
Input Voltage: Continuous: Transient (100msec): Input Reverse-Polarity Protection Output Current On/Off Control (Pin 3) Max. Voltages Referenced to -Input (pin 1) Storage Temperature Lead Temperature (Soldering, 10 sec.) 81 Volts 100 Volts Input Current must be <5A. 1 minute duration. Fusing recommended. Current limited. Devices can withstand an indefinite output short circuit. +VIN -40 to +120C +300C
Output
1.0% maximum No load See Ordering Guide See Ordering Guide See Ordering Guide +10% 10%, -20% 1500Vdc minimum 100M 940pF 33-35 Amps TBD Amps average current Comparator, latching TBD Volts TBD F 0.02% per 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, nor recommended.
Dynamic Characteristics
TBDsec maximum TBD TBD 350kHz (35kHz)
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XHP Series
3.3V @ 30A, SINGLE OUTPUT DC/DC CONVERTERS
TECHNICAL NOTES
1
-INPUT
+OUTPUT
5
Trimming Output Voltages
2
+SENSE CASE TRIM
6
UHP converters have a trim capability (pin 7) that allows users to adjust the output voltage 5%. Adjustments 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 absolute TCR's less than 100ppm/C to minimize sensitivity to changes in temperature. A single resistor connected from the Trim (pin 7) to the +Sense (pin 6), see Figure 3, will increase the output voltage. A resistor connected from the Trim (pin 7) to the -Sense (pin 8) will decrease the output voltage. See Figure 4. Trim adjustments greater than +10%/-20% can have an adverse effect on the converter's performance and are not recommended.
7 RTRIM DOWN
LOAD
3
ON/OFF CONTROL
-SENSE
8
4
+INPUT
-OUTPUT
9
Figure 4. Trim Connections To Decrease Output Voltages Using Fixed Resistors
Trim Up Equation
RT UP (k) =
1 -INPUT +OUTPUT 5
13.3(VO - 1.226) VO - 3.3
-10.2
Trim Down Equation
6
2
+SENSE CASE TRIM
RTDOWN (k) =
7 20k 5-22 TURNS LOAD 8
16.31 3.3 - VO
-10.2
3
ON/OFF CONTROL
-SENSE
Accuracy of adjustment is subject to tolerances or resistor values and factory-adjusted output accuracy. VO = desired output voltage.
4
+INPUT
-OUTPUT
9
Output Current vs. Ambient Temperature VIN = 48V, Air flow from output pins to input pins
Figure 2. Trim Connections Using A Trim Pot
30
400lfm
25
150lfm
1
-INPUT
+OUTPUT
5
Output Current (Amps)
200lfm
20
300lfm
2
+SENSE CASE TRIM
6
15
7 RTRIM UP
LOAD
3
ON/OFF CONTROL
10
NATURAL CONVECTION
-SENSE
8
5
4
+INPUT
-OUTPUT
9
0 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 94 96 100
Figure 3. Trim Connections To Increase Output Voltages Using Fixed Resistors
Ambient Temperature (C)
(R)
(R)
INNOVATION and EXCELLENCE
ISO 9001 REGISTERED
DS0492
2/01
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: sales@datel.com
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 Munchen, Germany Tel: 89-544334-0 DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-6354-2025
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.
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