® |
® |
INNOVATION and EXCELLENCE
Single Output
UPB Models
High-Efficiency, Smaller-Package
25-40 Watt, DC/DC Converters
Features
■25/30/35/40W output power
■Standard pinout! Smaller size!
■New 2" x 3" package fits 3" x 3" footprint
■5V, 12V or 15V outputs
■Four input voltage ranges:
10-36V, 18-36V
18-72V, 36-72V
■High efficiencies (to 85%)
■Fully isolated, 750Vdc guaranteed
■Input under and overvoltage lockout
■Thermal shutdown
■VOUT trim and on/off control
■UL1950, CSA 22.2 No. 950, IEC950
■Modifications and customs for OEM's
DATEL’s new UPB Model, 25-40 Watt, single-output DC/DC power converters bring you efficient "on-board" power processing in a cost-effective smaller package with a standard pinout. The 2" x 3" UPB "footprint" conforms with the industrystandard pinout and pin geometries of most 3" x 3" devices (a 33% space savings) while delivering as much as 60% more power (40W vs. 25W).
Applicable to a wide range of telecom, computer and other OEM applications, UPB Model DC/DC’s operate from four input voltage ranges (10-36V for "Q12" models, 18-36V for "D24" models, 18-72V for "Q48" models, and 36-72V for "D48" models). Available output voltages are 5, 12 and 15 Volts.
For improved reliability and affordability, DATEL exploits contemporary, highspeed, automatic-assembly techniques to construct the UPB’s traditional, fieldproven, SMT-on-pcb designs. Devices employ corrosion-resistant steel cases with heavy zinc top plates (traditionally referred to as baseplates). Heat generating transformer cores and power semiconductors are mounted directly to the baseplates, which also have threaded inserts for optional add-on heat sinks or pcb mounting. Temperature derating information is provided for operation with and without heat sinks and forced air flow.
All devices feature input pi filters, input undervoltage and overvoltage shutdown, output overvoltage protection, output current limiting, and thermal shutdown. All UPB models are UL1950, CSA 22.2 No. 950, and IEC950 approved. Most have been EMI/EMC characterized. Contact DATEL for the latest available information.
+VIN |
+VOUT |
COMMON
–VIN |
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PWM |
ISOLATION |
REFERENCE & |
TRIM |
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CONTROLLER |
ERROR AMP |
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UVLO & OVLO |
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CASE |
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ON/OFF |
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CONTROL |
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(SYNC) |
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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
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XPB Series |
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2 5 - 4 0 W , |
S I N G L E |
O U T P U T D C / D C |
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C O N V E R T E R S |
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Performance Specifications and Ordering Guide |
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Output |
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Input |
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Package |
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VOUT |
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R/N (mVp-p) |
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Regulation (Max.) |
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VIN Nom. |
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Range |
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IIN |
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Efficiency |
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IOUT |
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(Case, |
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Model |
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(Volts) |
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(Amps) |
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Typ. |
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Max. |
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Line |
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Load |
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(Volts) |
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(Volts) |
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(mA) |
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Min. |
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Typ. |
Pinout) |
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UPB-5/5-Q12 |
5 |
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5 |
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75 |
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100 |
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±0.5% |
±1% |
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24 |
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10-36 |
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50/1366 |
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77% |
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79% |
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C10, P14 |
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UPB-5/6-Q48 |
5 |
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6 |
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75 |
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100 |
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±0.5% |
±1% |
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48 |
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18-72 |
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25/799 |
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79% |
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80% |
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C10, P14 |
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UPB-5/7-D24 |
5 |
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7 |
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75 |
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100 |
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±0.5% |
±1% |
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24 |
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18-36 |
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25/1796 |
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82% |
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83% |
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C10, P14 |
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UPB-5/8-D48 |
5 |
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8 |
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75 |
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100 |
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±0.5% |
±1% |
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48 |
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36-72 |
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25/1026 |
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82% |
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85% |
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C10, P14 |
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UPB-12/2.1-Q12 |
12 |
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2.1 |
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90 |
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120 |
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±0.5% |
±1% |
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24 |
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10-36 |
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50/1326 |
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81% |
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83% |
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C10, P14 |
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UPB-12/2.5-Q48 |
12 |
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2.5 |
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90 |
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120 |
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±0.5% |
±1% |
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48 |
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18-72 |
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30/761 |
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83% |
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84% |
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C10, P14 |
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UPB-12/3-D24 |
12 |
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3 |
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90 |
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120 |
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±0.5% |
±1% |
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24 |
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18-36 |
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25/1825 |
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83% |
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84% |
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C10, P14 |
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UPB-12/3.3-D48 |
12 |
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3.3 |
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90 |
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120 |
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±0.5% |
±1% |
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48 |
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36-72 |
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25/1004 |
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83% |
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85% |
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C10, P14 |
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UPB-15/1.7-Q12 |
15 |
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1.7 |
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100 |
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150 |
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±0.5% |
±1% |
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24 |
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10-36 |
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50/1325 |
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81% |
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83% |
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C10, P14 |
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UPB-15/2-Q48 |
15 |
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2 |
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100 |
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150 |
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±0.5% |
±1% |
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48 |
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18-72 |
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30/761 |
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83% |
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84% |
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C10, P14 |
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UPB-15/2.5-D24 |
15 |
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2.5 |
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100 |
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150 |
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±0.5% |
±1% |
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24 |
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18-36 |
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25/1879 |
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84% |
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85% |
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C10, P14 |
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UPB-15/2.65-D48 |
15 |
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2.65 |
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100 |
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150 |
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±0.5% |
±1% |
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48 |
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36-72 |
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25/1008 |
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83% |
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85% |
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C10, P14 |
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Typical at TA = +25°C under nominal line voltage and full-load conditions unless otherwise noted. |
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Ripple/Noise (R/N) measured over a 20MHz bandwidth. |
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10 to 100% load. |
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Nominal line voltage, no-load/full-load conditions. |
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P |
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U |
PB |
- |
5 |
/ |
8 |
- |
D48 |
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Output Configuration: |
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Input Voltage Range: |
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U = Unipolar |
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Q12 = 10-36 Volts (24V nominal) |
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D24 = 18-36 Volts (24V nominal) |
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Power Package with |
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Q48 = 18-72 Volts (48V nominal) |
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Metal Baseplate |
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D48 = 36-72 Volts (48V nominal) |
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Maximum Output Current |
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Nominal Output Voltage: |
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5, 12 or 15 Volts |
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in Amps |
UPB DC/DC Converters are classified, by output power, into 25, 30, 35 and 40 Watt devices. For any given device, the maximum available output power is the product of the nominal output voltage and the maximum output current indicated within the part number. A UPB-5/6-Q48, for example, can source 6 Amps from its 5V output (over its entire 18-72V input range) delivering an output power of 30 Watts. A UPB-5/8-D48 can deliver 40 Watts.
Model |
Maximum Output Power |
"Q12" |
25 Watts |
"Q48" |
30 Watts |
"D24" |
35 Watts |
"D48" |
40 Watts |
M E C H A N I C A L S P E C I F I C A T I O N S |
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I/O Connections |
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3.00 |
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METAL |
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Pin |
Function P14 |
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(76.20) |
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BASEPLATE |
1 |
No Pin |
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0.50 |
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0.025 |
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2 |
–Input |
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Case C10 |
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(0.64) |
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(12.70) |
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3 |
+Input |
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0.20 MIN. |
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4 |
Case |
(5.08) |
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5 |
On/Off Control* |
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METAL CASE |
0.040 ±0.002 DIA. |
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(1.016 ±0.051) |
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6 |
No Pin |
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2.500 |
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0.25 |
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7 |
No Pin |
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(63.50) |
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(6.35) |
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8 |
Common |
0.40 |
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9 |
+VOUT |
(10.16) |
1 |
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6 |
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10 |
Trim |
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2 |
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7 |
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* See note 3 on next page. |
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1.200 |
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(4) THREADED INSERTS |
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1.600 |
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2.00 |
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3 |
8 |
(40.64) |
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(30.48) |
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#4-40 THD THRU |
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4 EQ. SP. @ |
(50.80) |
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WITH 0.025 (0.64) |
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0.400 (10.16) |
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4 |
STANDOFFS |
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9 |
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5 |
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10 |
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BOTTOM VIEW |
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0.20 |
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2.600 |
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0.20 |
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(5.08) |
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(66.04) |
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(5.08) |
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Optional Heat Sink (Part Number HS-23)
3.00
(76.20)
2.600
(66.04)
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TOP VIEW |
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0.120 DIA. (3.048) |
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(4 PLACES) |
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0.20
(5.08)
1.200 2.00
(30.48) (50.80)
0.40
(10.16)
0.50
(12.70)
MATERIAL: BLACK ANODIZED ALUMINUM |
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0.10 |
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4 MOUNTING SCREWS AND 0.009 (0.229) THERMAL PAD INCLUDED |
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(2.54) |
2
2 5 - 4 0 W , S I N G L E O U T P U T D C / D C C O N V E R T E R S |
UPB Models |
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Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full-load conditions, unless noted.
|
Input |
Input Voltage Range: |
|
"Q12" Models |
10-36 Volts (24V nominal) |
"D24" Models |
18-36 Volts (24V nominal) |
"Q48" Models |
18-72 Volts (48V nominal) |
"D48" Models |
36-72 Volts (48V nominal) |
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|
Undervoltage Lockout: |
|
"Q12" Models |
9 Volts |
"D24" Models |
17 Volts |
"Q48" Models |
17 Volts |
"D48" Models |
34 Volts |
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Input Current |
See Ordering Guide |
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Input Filter Type |
Pi |
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Overvoltage Shutdown: |
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"D24" and "Q12" Models |
40 Volts |
"D48" and "Q48" Models |
80 Volts |
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Reverse-Polarity Protection |
Yes (Instantaneous, 6A maximum) |
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On/Off Control (Pin 5) |
TTL high (or open) = on, low = off |
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Output |
VOUT Accuracy (50% load) |
±1%, maximum |
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Temperature Coefficient |
±0.04% per °C |
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Ripple/Noise (20MHz BW) |
See Ordering Guide |
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Line/Load Regulation |
See Ordering Guide |
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Efficiency |
See Ordering Guide |
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Isolation Voltage |
750Vdc, minimum |
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Isolation Capacitance |
700pF |
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Current Limiting |
Continuous, auto-recovery |
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Overvoltage Protection |
Zener/transorb clamp, magnetic feedback |
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Dynamic Characteristics |
|
Transient Response (50% load step) |
200µsec max. to ±1.5% of final value |
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|
Switching Frequency |
165kHz (±10%) |
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Environmental |
|
Operating Temperature (ambient): |
|
Without Derating |
–25 to +50°C (model dependent) |
With Derating |
to +100°C (See Derating Curves) |
Maximum Baseplate Temperature |
+100°C |
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Storage Temperature |
–40 to +105°C |
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Physical |
Dimensions |
2" x 3" x 0.50" (50.8 x 76.2 x 12.7mm) |
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|
Shielding |
6-sided |
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Case Connection |
Pin 4 |
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Case Material |
Tin-plated steel |
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Baseplate Material |
Zinc with black enamel finsh |
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Pin Material |
Brass, solder coated |
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Weight |
4 ounces (113 grams) |
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These 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.
Application-specific internal input/output filtering can recommended or perhaps added internally upon request. Contact DATEL Applications Engineering for details.
Applying a voltage to the Control pin when no input power is applied to the converter can cause permanent damage to the converter. If desired, the On/Off function can be replaced with a Sync function. See page 6 of this data sheet for more details.
Absolute Maximum Ratings
Input Voltage: |
|
"Q12/D24" Models |
44 Volts |
"Q48/D48" Models |
88 Volts |
Input Reverse-Polarity Protection |
Current must be <6A. Brief |
|
duration only. Fusing recommended. |
Output Overvoltage Protection |
|
5V Outputs |
6.8 Volts |
12V Outputs |
15 Volts |
15V Outputs |
18 Volts |
Output Current |
Current limited. Max. current and |
|
short-circuit duration are model |
|
dependent. |
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.
T E C H N I C A L N O T E S
Floating Outputs
Since these are isolated DC/DC converters, their outputs are "floating." Users may ground either the Common (pin 8) for normal usage or the positive side (+Output, pin 9) to effectively reverse the output polarity.
Filtering and Noise Reduction
All UPB 25-40 Watt DC/DC Converters achieve their rated ripple and noise specifications without the use of external input/output capacitors. In critical applications, input/output ripple and noise may be further reduced by installing electrolytic capacitors across the input terminals and/or low-ESR tantalum or electrolytic capacitors across the output terminals. The caps should be located as close to the power converters as possible. Typical values are listed in the tables below. In many applications, using values greater than those listed will yield better results.
To Reduce |
Input Ripple |
|
"Q12, D24" Models |
47µF, 50V |
|
"Q48, D48" Models |
10µF, 100V |
|
To Reduce Output Ripple |
|
|
5V Outputs |
47µF, 10V, Low ESR |
|
12/15V Outputs |
22µF, 20V, Low ESR |
In critical, space-sensitive applications, DATEL may be able to tailor the internal input/output filtering of these devices 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. For DATEL UPB DC/DC Converters, you should use slow-blow type fuses with values no greater than the following:
VIN Range |
Fuse Value |
"Q12" |
4A |
"D24" |
4A |
"Q48" |
3A |
"D48" |
2A |
3