DATEL UPB-5-8-D48, UPB-5-7-D24, UPB-5-6-Q48, UPB-15-2.65-D48, UPB-5-5-Q12 Datasheet

...
0 (0)

®

®

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

 

 

 

PWM

ISOLATION

REFERENCE &

TRIM

CONTROLLER

ERROR AMP

 

 

UVLO & OVLO

 

 

CASE

COMPARATORS

 

 

 

 

 

ON/OFF

 

 

 

CONTROL

 

 

 

(SYNC)

 

 

 

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

DATEL UPB-5-8-D48, UPB-5-7-D24, UPB-5-6-Q48, UPB-15-2.65-D48, UPB-5-5-Q12 Datasheet

 

XPB Series

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Performance Specifications and Ordering Guide

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Package

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOUT

 

 

 

 

 

 

 

 

R/N (mVp-p)

 

Regulation (Max.)

 

VIN Nom.

 

Range

 

 

IIN

 

 

 

Efficiency

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IOUT

 

 

 

 

 

 

 

 

 

 

 

 

(Case,

 

Model

 

(Volts)

 

(Amps)

 

 

Typ.

 

 

 

Max.

 

Line

 

Load

 

(Volts)

 

(Volts)

 

 

(mA)

 

 

Min.

 

 

 

 

Typ.

Pinout)

 

UPB-5/5-Q12

5

 

 

 

 

 

5

 

 

 

75

 

 

 

100

 

 

±0.5%

±1%

 

24

 

 

 

10-36

 

 

50/1366

 

 

 

77%

 

 

79%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-5/6-Q48

5

 

 

 

 

 

6

 

 

 

75

 

 

 

100

 

 

±0.5%

±1%

 

48

 

 

 

18-72

 

 

25/799

 

 

 

79%

 

 

80%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-5/7-D24

5

 

 

 

 

 

7

 

 

 

75

 

 

 

100

 

 

±0.5%

±1%

 

24

 

 

 

18-36

 

 

25/1796

 

 

 

82%

 

 

83%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-5/8-D48

5

 

 

 

 

 

8

 

 

 

75

 

 

 

100

 

 

±0.5%

±1%

 

48

 

 

 

36-72

 

 

25/1026

 

 

 

82%

 

 

85%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-12/2.1-Q12

12

 

 

 

 

2.1

 

 

 

90

 

 

 

120

 

 

±0.5%

±1%

 

24

 

 

 

10-36

 

 

50/1326

 

 

 

81%

 

 

83%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-12/2.5-Q48

12

 

 

 

 

2.5

 

 

 

90

 

 

 

120

 

 

±0.5%

±1%

 

48

 

 

 

18-72

 

 

30/761

 

 

 

83%

 

 

84%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-12/3-D24

12

 

 

 

 

3

 

 

 

90

 

 

 

120

 

 

±0.5%

±1%

 

24

 

 

 

18-36

 

 

25/1825

 

 

 

83%

 

 

84%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-12/3.3-D48

12

 

 

 

 

3.3

 

 

 

90

 

 

 

120

 

 

±0.5%

±1%

 

48

 

 

 

36-72

 

 

25/1004

 

 

 

83%

 

 

85%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-15/1.7-Q12

15

 

 

 

 

1.7

 

 

 

100

 

 

150

 

 

±0.5%

±1%

 

24

 

 

 

10-36

 

 

50/1325

 

 

 

81%

 

 

83%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-15/2-Q48

15

 

 

 

 

2

 

 

 

100

 

 

150

 

 

±0.5%

±1%

 

48

 

 

 

18-72

 

 

30/761

 

 

 

83%

 

 

84%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-15/2.5-D24

15

 

 

 

 

2.5

 

 

 

100

 

 

150

 

 

±0.5%

±1%

 

24

 

 

 

18-36

 

 

25/1879

 

 

 

84%

 

 

85%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UPB-15/2.65-D48

15

 

 

 

 

2.65

 

 

100

 

 

 

150

 

 

±0.5%

±1%

 

48

 

 

 

36-72

 

 

25/1008

 

 

 

83%

 

 

85%

 

C10, P14

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Typical at TA = +25°C under nominal line voltage and full-load conditions unless otherwise noted.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ripple/Noise (R/N) measured over a 20MHz bandwidth.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10 to 100% load.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nominal line voltage, no-load/full-load conditions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P

A

R

T

N

U

M

B

E

R

 

S

T

R

U

C

T

U

R

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

O

U

T

P

U

T

P

O

W

E

R

C

O

N

S

I D

E

R

A

T

I

O

N

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

U

PB

-

5

/

8

-

D48

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Output Configuration:

 

 

 

 

 

Input Voltage Range:

U = Unipolar

 

 

 

 

 

Q12 = 10-36 Volts (24V nominal)

 

 

 

 

 

 

 

 

 

 

 

D24 = 18-36 Volts (24V nominal)

Power Package with

 

 

 

 

 

Q48 = 18-72 Volts (48V nominal)

Metal Baseplate

 

 

 

 

 

D48 = 36-72 Volts (48V nominal)

 

 

 

 

 

 

 

 

 

 

Maximum Output Current

Nominal Output Voltage:

 

 

 

 

 

 

5, 12 or 15 Volts

 

 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I/O Connections

 

 

3.00

 

 

METAL

 

Pin

Function P14

 

 

(76.20)

 

 

BASEPLATE

1

No Pin

 

 

 

 

 

 

 

 

 

 

 

 

 

0.50

 

 

 

 

0.025

 

 

2

–Input

 

Case C10

 

(0.64)

 

 

(12.70)

 

 

 

 

 

3

+Input

 

 

 

 

 

 

 

 

0.20 MIN.

 

 

 

 

 

 

 

4

Case

(5.08)

 

 

 

 

 

 

 

5

On/Off Control*

 

METAL CASE

0.040 ±0.002 DIA.

 

 

 

 

 

 

 

(1.016 ±0.051)

 

 

 

 

6

No Pin

 

 

 

 

 

 

 

 

 

 

2.500

 

 

0.25

 

 

7

No Pin

 

 

(63.50)

 

 

(6.35)

 

 

 

 

 

 

 

 

 

 

8

Common

0.40

 

 

 

 

 

 

 

9

+VOUT

(10.16)

1

 

 

6

 

 

 

 

 

 

 

 

10

Trim

 

 

 

 

 

 

 

 

 

2

 

 

7

 

 

 

* See note 3 on next page.

 

 

 

 

 

 

 

 

1.200

 

(4) THREADED INSERTS

 

1.600

 

2.00

 

 

3

8

(40.64)

 

 

 

(30.48)

 

#4-40 THD THRU

 

4 EQ. SP. @

(50.80)

 

 

 

 

 

 

 

 

 

WITH 0.025 (0.64)

 

 

0.400 (10.16)

 

 

 

 

 

4

STANDOFFS

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

10

 

 

 

 

 

 

 

BOTTOM VIEW

 

 

 

 

 

 

0.20

 

2.600

 

 

0.20

 

 

 

 

(5.08)

 

(66.04)

 

 

 

 

 

 

 

 

 

 

 

(5.08)

 

 

 

 

Optional Heat Sink (Part Number HS-23)

3.00

(76.20)

2.600

(66.04)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOP VIEW

 

 

 

 

 

 

0.120 DIA. (3.048)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(4 PLACES)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.20

(5.08)

1.200 2.00

(30.48) (50.80)

0.40

(10.16)

0.50

(12.70)

MATERIAL: BLACK ANODIZED ALUMINUM

 

 

0.10

4 MOUNTING SCREWS AND 0.009 (0.229) THERMAL PAD INCLUDED

 

(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

 

 

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)

 

 

Undervoltage Lockout:

 

"Q12" Models

9 Volts

"D24" Models

17 Volts

"Q48" Models

17 Volts

"D48" Models

34 Volts

 

 

Input Current

See Ordering Guide

 

 

Input Filter Type

Pi

 

 

Overvoltage Shutdown:

 

"D24" and "Q12" Models

40 Volts

"D48" and "Q48" Models

80 Volts

 

 

Reverse-Polarity Protection

Yes (Instantaneous, 6A maximum)

 

 

On/Off Control (Pin 5)

TTL high (or open) = on, low = off

 

 

 

Output

VOUT Accuracy (50% load)

±1%, maximum

 

 

Temperature Coefficient

±0.04% per °C

 

 

Ripple/Noise (20MHz BW)

See Ordering Guide

 

 

Line/Load Regulation

See Ordering Guide

 

 

Efficiency

See Ordering Guide

 

 

Isolation Voltage

750Vdc, minimum

 

 

Isolation Capacitance

700pF

 

 

Current Limiting

Continuous, auto-recovery

 

 

Overvoltage Protection

Zener/transorb clamp, magnetic feedback

 

Dynamic Characteristics

Transient Response (50% load step)

200µsec max. to ±1.5% of final value

 

 

Switching Frequency

165kHz (±10%)

 

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

 

 

Storage Temperature

–40 to +105°C

 

 

 

Physical

Dimensions

2" x 3" x 0.50" (50.8 x 76.2 x 12.7mm)

 

 

Shielding

6-sided

 

 

Case Connection

Pin 4

 

 

Case Material

Tin-plated steel

 

 

Baseplate Material

Zinc with black enamel finsh

 

 

Pin Material

Brass, solder coated

 

 

Weight

4 ounces (113 grams)

 

 

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

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