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UCP Models
UL/EN Approved "Half-Brick" 40-75 Watt, DC/DC Converters
Single Output
el modUL/EN Approved, "Half-Brick" U UL EN nt aceme pl Watt, DC/DC Converters 40-75 W s for re u ontact C
Features
St Standard "half-brick" configuration UL/EN60950 safety approvals (BASIC insulation) mark for "D48" models (36-75V inputs) Fully isolated, 1500Vdc guaranteed Output voltages: 12 or 15 Volts VIN ranges: 10-18V, 18-36V, 36-75V Full 40-75 Watt output power Reliable SMT-on-pcb construction Input under and overvoltage shutdown Output current limiting and short-circuit protection On/off, VOUT trim and sense functions Modifications and customs for OEM's
The high efficiency, low noise and long-term reliability that defines DATEL DC/DC Converters now comes to you in the standard "half-brick" configuration (2.3" x 2.4" x 0.52"). All models in our new UCP Series meet UL/EN60950 safety requirements, including each European country's deviations. A CB Test Certificate/Report is available. All models have BASIC insulation; guarantee 1500Vdc isolation; and because they are designed with Class B thermal insulation, satisfy all safety requirements over their full operating temperatures. UCP Models are designed for demanding telecom, datacom and networking applications. Their "semi-synchronous-rectifier" design (400kHz switching) achieves impressive efficiencies (up to 88%). Output voltages are 12 or 15 Volts. Input voltage ranges are 10-18V ("D12" models), 18-36V ("D24" models) or 36-75V ("D48" models). "D48" models meet the Low Voltage Directive (LVD) and carry the CE mark. For high reliability and affordability, DATEL utilizes high-speed automatic assembly to construct the UCP's proven SMT-on-pcb designs. All models have been rigorously qualified (including a 500-hour life test) and EMC characterized. Devices are housed in metal cases (with non-conductive baseplates) that incorporate threaded inserts for add-on heat sinks and/or pcb mounting. UCP's feature input pi filters, input undervoltage and overvoltage lockout, output current limiting, short-circuit protection, and thermal shutdown. Additionally, all devices have output trim capability and an on/off control pin that can be ordered with either polarity. We can easily modify standard-product UCP's to meet your application-specific requirements.
+VOUT (5) SWITCH CONTROL 10 +SENSE (6) -VOUT (9) 10 -SENSE (8)
NOT FO
UCP Models
+VIN (4)
-VIN (1)
PWM CONTROLLER
OPTO ISOLATION
REFERENCE & ERROR AMP
TRIM (7)
UVLO & OVLO COMPARATORS ON/OFF CONTROL (3)
The On/Off Control function can be ordered with either positive (standard) or negative polarity. 12V- and 15V-output models have a standard forward architecture in which this FET is replaced with a Schottky diode.
Figure 1. Simplified Schematic
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Typical topology is shown
MDC_UCP40-75W.B02 Page 1 of 7
UCP Models
UL/EN Approved "Half-Brick" 40-75 Watt, DC/DC Converters
Performance Specifications and Ordering Guide
Output Model
UCP-3.3/12-D12 UCP-3.3/15-D24 UCP-3.3/15-D48 UCP-5/10-D12 UCP-5/12-D24 UCP-5/12-D48 UCP-5/15-D48 UCP-12/4.2-D12 UCP-12/5-D24 UCP-12/5-D48 UCP-15/3.3-D12 UCP-15/4-D24 UCP-15/4-D48
Input Regulation (Max.) Line
0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5%
VOUT (Volts)
3.3 3.3 3.3 5 5 5 5 12 12 12 15 15 15
IOUT (Amps)
12 15 15 10 12 12 15 4.2 5 5 3.3 4 4
POUT (W)
40 50 50 50 60 60 75 50 60 60 50 60 60
R/N (mVp-p) Typ.
75 75 75 75 75 75 75 75 75 75 100 100 100
Max.
150 150 150 120 120 120 120 120 120 120 150 150 150
Load
1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0% 1.0%
VIN Nom. (Volts)
12 24 48 12 24 48 48 12 24 48 12 24 48
Range (Volts)
10-18 18-36 36-75 10-18 18-36 36-75 36-75 10-18 18-36 36-75 10-18 18-36 36-75
IIN (mA/A)
200/4.2 75/2.6 75/1.3 200/5.2 75/3 75/1.5 100/1.9 100/5 50/3 50/1.5 100/4.9 50/2.9 50/1.5
Efficiency Min.
81% 81% 81% 82% 85% 84% 84.5% 85% 84% 86% 85% 86% 86%
Typ.
83% 83% 83% 84% 87% 86% 86% 87% 86% 88% 87% 88% 88%
Package (Case, Pinout)
C12, P17 C12, P17 C12, P17 C12, P17 C12, P17 C12, P17 C12, P17 C12, P17 C12, P17 C12, P17 C12, P17 C12, P17 C12, P17
Typical at TA = +25C under nominal line voltage and full-load conditions unless otherwise noted. Ripple/Noise (R/N) measured over a 20MHz bandwidth. All models are specified with external 33F, low-ESR, input capacitors and 10F tantalum in parallel with 1F ceramic output capacitors.
10% to 100% load step. Nominal line voltage, no-load/full-load conditions.
PA R T N U M B E R S T R U C T U R E
U CP - 12 / 5 - D48 N LX
Output Configuration: U = Unipolar Standard Half-Brick Package Nominal Output Voltage: 12 or 15 Volts See Optional Functions Input Voltage Range: D12 = 10-18 Volts (12V nominal) D24 = 18-36 Volts (24V nominal) D48 = 36-75 Volts (48V nominal) Maximum Output Current in Amps
Optional Functions
UCP 40-75 Watt DC/DC's are designed with an On/Off Control function, with either positive polarity (no suffix) or negative polarity ("N" suffix), in the pin 3 position. Blank N L1* L2* On/Off Control function (positive polarity) on pin 3 On/Off Control function (negative polarity) on pin 3 Pin length: 0.110 inches (2.79mm) 0.010 Scheduled quantity orders only. Pin length: 0.145 inches (3.68mm) 0.010 Scheduled quantity orders only.
M E C H A N I C A L S P E C I F I C AT I O N S
2.30 (58.42) METAL CASE 0.515 (13.08)
I/O Connections Pin 1 2 3 4 5 6 7 8 9 Function P17 -Input Case On/Off Control +Intput +Output +Sense Trim -Sense -Output
Case C12
INSULATED BASE 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)
0.20 MIN. (5.08) 0.20 (5.08) 1.900 (48.26)
0.20 (5.08)
1
9
2 2.000 (50.80) 3
8 7 6 0.400 (10.16) 1.000 0.700 (25.40) (17.78) 1.400 (35.56) 2.40 (60.96
Optional Heat Sinks DATEL offers two heat sinks (part number HS-CP and HS-CPLP2) for the UCP models. For mechanical specifications, see page 7.
4
(4) THREADED INSERTS #M3 THD THRU
5 0.50 (12.70)
BOTTOM VIEW
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MDC_UCP40-75W.B02 Page 2 of 7
UCP Models
Performance/Functional Specifications
Typical @ TA = +25C under nominal line voltage and full-load conditions, unless noted.
UL/EN Approved "Half-Brick" 40-75 Watt, DC/DC Converters
Physical
Dimensions Shielding Case Connection Case Material 2.3 x 2.4 x 0.515" (58.4 x 61 x 13.1mm) 5-sided Pin 2 Zinc with a non-conductive, epoxy-based black enamel finish and plastic baseplate Brass, solder coated 5.3 ounces (149 grams)
Input
Input Voltage Range: D12 Models D24 Models D48 Models Overvoltage Shutdown: D12 Models D24 Models D48 Models Start-Up Threshold: D12 Models D24 Models D48 Models Undervoltage Shutdown: D12 Models D24 Models D48 Models Input Current: Normal Operating Conditions Standby Mode (Off, OV, UV) Input Filter Type Reverse-Polarity Protection: D12/D24 Models D48 Models On/Off Control (Pin 3) VOUT Accuracy (50% load): 3.3V Outputs 5/12/15V Outputs Temperature Coefficient Ripple/Noise (20MHz BW) Line/Load Regulation Efficiency Isolation Voltage: Input-to-Output Input-to-Case Output-to-Case Isolation Capacitance Isolation Resistance Current Limiting: 3.3V and 5V Outputs 12V and 15V Outputs Overvoltage Protection Transient Response (50% load step) Start-Up Time: VIN to VOUT On/Off to VOUT Switching Frequency Operating Temperature (Ambient): Without Derating With Derating Case Temperature: Maximum Allowable For Thermal Shutdown Storage Temperature 12-18 Volts (12V nominal) 18-36 Volts (24V nominal) 36-75 Volts (48V nominal) 20 Volts 40 Volts 80 Volts 9.5 Volts 17 Volts 35 Volts 9 Volts 16 Volts 34 Volts See Ordering Guide 5mA Pi Brief duration, 15A maximum Brief duration, 10A maximum TTL high (or open) = on, low = off
Pin Material Weight
These power converters require a minimum 10% output loading to maintain specified regulation. Operation under no-load conditions will not damage these devices; however they may not meet all listed specifications. All models are specified with external 33F, low-ESR, input capacitors and 10F tantalum in parallel with 1F ceramic output capacitors. See Technical Notes for details. Devices may be ordered with the opposite polarity (pin 3 open = off), or the on/off control function can be replaced with a sync function. See Part Number Suffixes and Technical Notes for additional information. Accuracy is specified with the sense pins tied directly to their respective output pins. Output noise may be further reduced with the installation of additional external output capacitors. See Technical Notes.
Absolute Maximum Ratings
Input Voltage: Continuous: D12 Models D24 Models D48 Models Transient (100msec): D12 Models D24 Models D48 Models Input Reverse-Polarity Protection Output Overvoltage Protection 3.3V Outputs 5V Outputs 12V Outputs 15V Outputs Output Current
Output
1.5%, maximum 1%, maximum 0.04% per C See Ordering Guide See Ordering Guide See Ordering Guide 1500Vdc, minimum 1500Vdc, minimum 1500Vdc, minimum 750pF 100M Hiccup technique, auto-recovery Power-limiting technique, auto-recovery Zener/transorb clamp, magnetic feedback
22 Volts 44 Volts 88 Volts 25 Volts 50 Volts 100 Volts Current must be <15/10 Amps. Brief duration only. Fusing recommended. 4.5 Volts, limited duration 6.8 Volts, limited duration 15 Volts, limited duration 18 Volts, limited duration Current limited. 12/15V devices can withstand an output short circuit for a brief duration only. 3.3/5V devices can withstand output shorts indefinitely. -40 to +105C +300C
Storage Temperature Lead Temperature (soldering, 10 sec.)
Dynamic Characteristics
200sec max. to 1.5% of final value 50msec 30msec 400kHz (25kHz)
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.
Environmental
-40 to +45/50C (Model dependent) to +100C (See Derating Curves) +100C +95C minimum, +105C maximum -40 to +105C
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MDC_UCP40-75W.B02 Page 3 of 7
UCP Models
UL/EN Approved "Half-Brick" 40-75 Watt, DC/DC Converters
D12 Models (50 Watts)
60 60
50
50
Output Power (Watts)
40
Output Power (Watts)
40
30 Natural Convection Cooling 20 150 Linear Feet Per Minute 300 Linear Feet Per Minute 10
30 Natural Convection Cooling 20 150 Linear Feet Per Minute 300 Linear Feet Per Minute 10
0 -40
0
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
0 -40
0
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Ambient Temperature (C)
Ambient Temperature (C)
Figure 2a. Temperature Derating Without Heat Sink
Figure 2b. Temperature Derating With HS-CP Heat Sink
D24 Models (60 Watts)
60 60
50
50
Output Power (Watts)
40
Output Power (Watts)
40
30 Natural Convection Cooling 20 150 Linear Feet Per Minute 300 Linear Feet Per Minute 10
30 Natural Convection Cooling 20 150 Linear Feet Per Minute 300 Linear Feet Per Minute 10
0 -40
0
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
0 -40
0
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Ambient Temperature (C)
Ambient Temperature (C)
Figure 3a. Temperature Derating Without HS-CP Heat Sink
Figure 3b. Temperature Derating With HS-CP Heat Sink
D48 Models (60 Watts)
60 60
50
50
Output Power (Watts)
40
Output Power (Watts)
40
30 Natural Convection Cooling 20 150 Linear Feet Per Minute 300 Linear Feet Per Minute 10
30 Natural Convection Cooling 20 150 Linear Feet Per Minute 300 Linear Feet Per Minute 10
0 -40
0
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
0 -40
0
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
Ambient Temperature (C)
Ambient Temperature (C)
Figure 4a. Temperature Derating Without HS-CP Heat Sink
Figure 4b. Temperature Derating With HS-CP Heat Sink
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MDC_UCP40-75W.B02 Page 4 of 7
UCP Models
UL/EN Approved "Half-Brick" 40-75 Watt, DC/DC Converters
TECHNICAL NOTES
Floating Outputs Since these are isolated DC/DC converters, their outputs are "floating." Designers will usually use the -Output (pin 9) as the ground/return of the load circuit. You can, however, use the +Output (pin 5) as ground/return to effectively reverse the output polarity. Filtering and Noise Reduction All UCP DC/DC Converters achieve their rated ripple and noise specifications using the external input and output capacitors specified in the Performance/ Functional Specifications table. In critical applications, input/output noise may be further reduced by installing additional 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. The most effective combination of external I/O capacitors will be a function of your particular load and layout conditions. Our Applications Engineers will be happy to 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 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 UCP DC/DC Converters, you should use slowblow type fuses with values no greater than the following. VIN Range D12 Models D24 Models D48 Models Fuse Value 7 Amps 6 Amps 3 Amps
On/Off Control (Standard) The On/Off Control pin (pin 3) may be used for remote on/off operation. As shown in Figure 5, the control pin is referenced to the -Input (pin 1) and has an internal pull-up resistor (28.7k, 75k and 100k respectively for D12, D24 and D48 models) to the +Input (pin 4). The standard UCP converter is designed so that it is enabled when the control pin is left open and disabled when the control pin is pulled low (to less than +0.8V relative to -Input). When left open, pin 3 is pulled up to approximately 5V on "D24" models and 8V on "D48" models. Dynamic control of the 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 obviously be able to sink approximately 1mA when activated and withstand more than 10 Volts 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. The on/off control function, however, is designed such that the converter can be disabled (pin 3 pulled low) while input power is ramping up and then "released" once the input has stabilized. Under these circumstances, it takes approximately 30ms for the output of the fully loaded DC/DC to ramp up and settle to within rated accuracy. For UCP converters configured with the negative-polarity option on the On/Off Control pin ("N" suffix added to part number), operation is exactly opposite to that described above.
4
+INPUT
3 ON/OFF CONTROL
Start-Up Threshold and Undervoltage Shutdown 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/Lockout 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 obviously avoids any unstable on/off situations at a single voltage. Start-Up Time The VIN to VOUT start-up time is the interval between the time at which a ramping input voltage crosses the turn-on threshold point and the fullyloaded output voltage enters and remains within its specified accuracy band. Actual measured times will vary with input source impedance, external input capacitance, and the slew rate and final value of the input voltage as it appears to the converter. The On/Off to VOUT start-up time assumes the converter has its nominal input voltage applied but is turned off via the On/Off Control. 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.
1
-INPUT
Figure 5. Driving the On/Off Control Pin
Input Reverse-Polarity Protection Upon applying a reverse-polarity voltage to the DC/DC converter, an internal diode will be forward biased and draw excessive current from the power source. Therefore, it is required that the input current be limited be either an appropriately rated input fuse or a current limited power source.
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MDC_UCP40-75W.B02 Page 5 of 7
UCP Models
Output Trimming VOUT may be trimmed 5% via a single trimpot or fixed resistor. As shown in Figure 6, the trimpot should be connected between +Output (pin 5) and -Output (pin 9) with its wiper connected to Trim (pin 7). A trimpot can also be used to determine the value of a single fixed resistor which can be connected between pin 7 (Trim) and pin 5 (+Output) to trim "down" the output voltage, or between pins 7 (Trim) and 9 (-Output) to trim "up" the output voltage, as shown in Figure 7. Fixed resistors should be metal-film types with absolute TCR's less than 100ppm/C to ensure stability. The Sense Pins Switching DC/DC converters incorporate a feedback loop that continuously monitors the difference between the output voltage and an internal precision reference. In situations in which load currents and/or conductor impedances are relatively high, there may be unacceptable voltage drops between the converter output and its load. The purpose of the Sense pins (pins 6 and 8) is to monitor and feed back the output voltage at the load, rather than at the output of the converter, and to adjust the converter output as necessary to maintain the load voltage at its desired level. The Sense pins (which the converter output sees as having an effective 10 Ohm line impedance) should be connected across the output voltage at the load and not at the output of the converter. See Figure 8. The Sense pins then function similar to the Trim pin, and they effectively have the same 5% compensation range. If, for example, the combination of load current and line impedance causes a 5V output to drop to +4.75V at its load (a 5% drop), the sense function will compensate by raising the output voltage at the converter to +5.25V. If the load voltage drops to +4.5V, the sense function will not be able to compensate for the full drop, and other measures (like reducing line impedance) must be taken. If you are using both the external Trim and Sense functions, you must not attempt to force the converter output voltage more than 5% above its initial, "untrimmed" value. When UCP DC/DC Converters are tested for output accuracy during final test, the Sense pins are connected directly to their respective output pins. Case Connection Unlike most other DC/DC converters, UCP DC/DC's do not have their metal case connected to one of their input pins. The "uncommitted" case is connected to pin 2 which, depending upon your system configuration, should be connected to either +Input (pin 4), -Input (pin 1), -Output (pin 9), or earth ground.
UL/EN Approved "Half-Brick" 40-75 Watt, DC/DC Converters
+OUTPUT 4 +INPUT TRIM 1 -INPUT -OUTPUT
5
7
20k 5-10 Turns
LOAD
9
Figure 6. Trim Connections Using a Trimpot
+OUTPUT 4 +INPUT TRIM 1 -INPUT
5 Trim Down 7 LOAD Trim Up 9
-OUTPUT
Figure 7. Trim Connections Using Fixed Resistors
+OUTPUT 4 +INPUT +SENSE
5
6 LOAD 1 -INPUT -SENSE -OUTPUT 9 8
Figure 8. Sense Connections Made at the Load
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MDC_UCP40-75W.B02 Page 6 of 7
UCP Models
Heat Sinks for UCP Series DATEL offers two standard heat sinks that can be mounted to the half-brick package to extend the converter's operating temperature range. Along with the standard 2.3" x 2.4" x 0.5" (HS-CP) heat sink, DATEL has designed a low-profile heat sink for height-restricted applications. This new heat sink (HS-CPLP2) is designed with radiant fins that extend 0.51" beyond either side of the 2.4" dimension of the BCP package. The convenience of this design is that the finned extensions protrude only 0.31" below the top surface of the DC/DC converter, allowing components with a profile height less than 0.2" to be mounted on the pc board below the heat sink. Therefore, while the surface area of the low-profile heat sink measures 2.3" x 3.5", pcb real estate is unaffected. For optimum thermal performance in a natural convection application, the low-profile heat sink should be mounted with the fins vertically oriented. Both models are shipped with 0.009" sellf-adhesive thermal pad and mounting screws. Note: When mounting the heat sink to the UCP converter: 1. Maximum applied torque is 2 in-lbs. 2. Minimum thread engagement of the mounting screws is 12mm deep.
6
UL/EN Approved "Half-Brick" 40-75 Watt, DC/DC Converters
Optional Heat Sinks (Part Number HS-CP)
2.30 (58.42) 1.900 (48.26) 0.50 (12.70) TYP. 051 (12.95) MAX. 0.20 (5.08) 0.10 (2.54)
2.000 (50.80)
2.40 (60.96)
TOP VIEW 0.147 DIA. (3.734) (4 PLACES)
0.20 (5.08)
MATERIAL: BLACK ANODIZED ALUMINUM 4 MOUNTING SCREWS AND 0.009 (0.229) THICK THERMAL PAD INCLUDED
Optional Heat Sink (Part Number HS-CPLP2)
C WATT
THERMAL RESISTANCE
5
4 HS-CPLP2 3 HS-CP
2
1
0 0 100 200 300 400 500 600 700 AIR VELOCITY (FT./MIN.)
Figure 9. HS-CP and HS-CPLP2 Heat Sink Performance Vs. Air Flow
Threaded Inserts and Heatsink Installation CAUTION: Do not use the threaded inserts to bolt the converter down to a PC board. That will place unnecessary force on the mounting pins. Instead, the converter is held securely by only soldering the mounting pins. When attaching the heat sink from above the converter, use a maximum torque of 2 inch-pounds (0.23 N-m) on the M3 bolts to avoid damaging the threaded inserts. Use a tiny amount of fastener adhesive or M3 lockwashers to secure the bolts.
USA: UK: France: Japan: Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Website: www.murata-ps.jp Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com
Canada: Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com
Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com ISO 9001 REGISTERED
Murata Power Solutions, 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. (c) 2008 Murata Power Solutions, Inc.
Germany: Munchen, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com
China:
06/12/08
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