DATEL TWR-5-3000-15-500-D48A, TWR-5-3000-12-500-D12A, TWR-5-3000-15-500-D12A Datasheet

Figure 1. Simplified Schematic

Features

High-Reliability, P ower-Sharing

20 Watt, DC/DC Conv erters

Triple Output

A-Series, TWR Models

INNOVATION and EX C ELL E N C E

®

®

Among the three families of triple-output DC/DC converters in DATEL ’s ne w
A-Series, the 20W 2" x 2" devices are distinguished by their unique "power-sharing"
architecture. This f eature enables devices to deliv er the full 20 W atts of output power
under a variety of output-loading conditions. Each unit’ s primary +5V output can source
any current up to 3 Amps (primary power = 15W); while its auxiliary ±12/15V outputs
can source currents up to ±500mA (auxiliary power = 12/15W). Devices deliver any
combination of primary plus auxiliary power as long as the total output power does not
exceed 20 W atts. This feature enab les designers to select a single device to fulfill any
number of different requirements.

As members of DATEL’s new A-Series, the 20W triples e xhibit both low cost and
outstanding long-term reliability. Their design combines straightforw ard circuit topolo­gies, the newest components, pro ven SMT-on-pcb construction methods, and highly
repeatable automatic-assembly techniques. Their superior durability is substantiated by
a rigorous in-house qualification program that includes HAL T (Highly Accelerated Lif e
T esting).

Each device has a +5V primary output and either ±12V or ±15V auxiliary outputs.
"D12A" models achieve fully rated performance with inputs ranging from
9 to 36 V olts. "D48A" models oper ate over an input range of 18-75 V olts.

These full-featured triples have non-latching output current limiting, input overvolt­age shutdown, input reverse-polarity protection, and output overvoltage clamping to
protect both the power converters and their loads.

OPTO

ISOLATION

+5V

–12V (–15V)

ERROR

AMPLIFIER

PWM

CONTROLLER

+V

IN

–

V

IN

+12V (+15V)

COMMON

ON/OFF

CONTROL

DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: [phone] Fax: [phone] • Email: [e-mail] • Internet: www.datel.com

A- SERIES

Low cost! Highly reliable!
Full 20 W atts output power
Power "user-allocated" among outputs
Proven SMT-on-pcb construction
Qual tested; HAL T tested; EMC tested
Output voltages: +5V/±12V or +5V/±15V
Ultra-wide input voltage ranges:

9-36V or 18-75V

Designed to meet UL1950 and
EN60950 (basic insulation)

mark available (75V-input models)

Small packages, 2" x 2" x 0.45"
Fully isolated, 1500Vdc guaranteed
Guaranteed efficiencies to 82%
–40 to +100°C operating temperature
Modifications and customs for OEM’ s

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20W, TRIPLE OUTPUT DC/DC CONVERTERS

A SeriesA Series

A SeriesA Series

A Series

Output Power (Watts)

Ambient Temperature (°C)

–40 0 40 45 50 55 60 65 7 0 7 5 8 0 8 5 9 0 9 5 1 00

20
19
18
17
16
15
14
13
12
11
10

9
8
7
6
5
4
3
2
1
0

2

Function P13

+Input
–Input

No Pin
On/Off Control
+12V/15V Out

+5V Out

Common

–12V/15V Out

Pin

1
2
3
4
5
6
7
8

Notes:

For "D12A" models, the case
is connected to pin 2 (–V

IN).

For "D48A" models, the case
is connected to pin 1 (+V

IN).

I/O Connections

BOTTOM VIEW

1.800

(45.72)

0.10

(2.54)

2.00

(50.80)

8

5

6

7

0.40

(10.16)

0.200
(5.08)

0.400

(10.16)

0.100
(2.54)

1
2

4

METAL CASE

INSULATED BA S

E

0.040 ±0.002 DIA.
(1.016 ±0.051)

2.00

(50.80)

0.20 MIN
(5.08)

0.45

(11.43)

1.200

(30.48)

3 EQ. SP. @

0.400 (10.16)

Output
Configuration:

T = Triple

Nominal Auxiliary Output

Voltages (±12 or ±15 Volts)

Wide Range Input

Maximum Primary Output

Current in mA

Maximum Auxiliary Output

Currents in mA from each output

Input V oltage Range:

D12 = 9-36 Volts

(24V nominal)

D48 = 18-75 Volts

(48V nominal)

Nominal Primary Output

Voltage (+5 Volts)

5T WR 3000 15 500-/ - / D48 A-

A-Series

High Reliability

TWR-5/3000-12/500-D12A

TWR-5/3000-12/500-D48A

TWR-5/3000-15/500-D12A

TWR-5/3000-15/500-D48A

Performance Specifications and Ordering Guide

IOUT

(mA)

R/N (mVp-p)

➁

Load

➂

VOUT

(Volts)

Output

Package

(Case,

Pinout)

Efficiency

Regulation (Max.)

Line

VIN Nom.

(Volts)

Range
(Volts)Model

Input

IIN ➃

(mA)

➀

Max.

Typ.

Typ.

Min.

9-36

18-75

9-36

18-75

24

48

24

48

75/1118

40/559

75/1118

40/559

81%

82%

81%

81%

C4, P13

C4, P13

C4, P13

C4, P13

±2.0%
±5.0%
±2.0%
±5.0%
±2.0%
±5.0%
±2.0%
±5.0%

+5

±12

+5

±12

+5

±15

+5

±15

3000
±500
3000
±500
3000
±500
3000
±500

100
125
100
125
100
150
100
150

±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%
±1.0%

➀

T ypical @ TA = +25°C under nominal line voltage and full-load conditions unless otherwise noted. For testing and specification purposes, "full load" is
defined as 2.75A on the primary +5V output and ±250/200mA on the auxiliary ±12/15V outputs. This corresponds to a total output power of 19.75W .

➁

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

➂

For the +5V output, listed spec applies over the 10% to 100% load range. For the ±12/15V outputs, listed spec applies for balanced loads over the 20% to 100% load range .

➃

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

50
75
50
75
50
75
50
75

82%

83%

82%

82%

PART NUMBER STRUCTURE

MECHANICAL SPECIFICATIONS

TEMPERATURE DERATING

Case C4

20W, TRIPLE OUTPUT DC/DC CONVERTERS

TWR Models

3

Filtering and Noise Reduction

All A-Series TWR 20 Watt DC/DC Converters achieve their rated ripple and
noise specifications without the use of external input/output capacitors. In
critical applications, input/output 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. Output capacitors should be
connected between their respective output pin (pin 5, 6 or 8) and Common (pin

7). The caps should be located as close to the power converters as possible.
T ypical values are listed belo w . In man y applications, using values greater than
those listed will yield better results.

In critical, space-sensitive applications, DATEL may be able to tailor the
internal input/output filtering of these units to meet your specific requirements.
Contact our Applications Engineering Group for additional details.

T o Reduce Input Ripple

"D12A" Models 20µF, 50V
"D48A" Models 10µF, 100V

T o Reduce Output Ripple

+5V Output 47µF, 10V, Low ESR
±12/15V Outputs 33µF, 20V, Low ESR

Performance/Functional Specifications

T ypical @ T A = +25°C under nominal line voltage and "full-load" conditions, unless noted.

➀

➀

These converters require 10% min. loading on their primary output and 20% min. loading on
their auxiliary outputs to maintain specified regulation. Operation under no-load conditions will
not damage the devices; however they may not meet all listed specifications. For testing and
specification purposes, "full load" is defined as 2.75A on the primary +5V output and ±250/
200mA on the auxiliary ±12/15V outputs. This corresponds to a total output power of 19.75W .

➁

Application-specific internal input/output filtering can be recommended or perhaps added
internally upon request. Contact DA TEL Applications Engineering for details .

➂

Applying a voltage to the Control pin when no input power is applied to the converter can
cause permanent damage to the converter.

➃

Devices can be screened or modified for higher guaranteed isolation voltages.
Contact DA TEL Applications Engineering f or details.

Input

Input V oltage Range:

"D12A" Models 9-36 Volts (24V nominal)
"D48A" Models 18-75 Volts (48V nominal)

Input Current See Ordering Guide
Input Filter T ype

➁

Pi

Overvoltage Shutdown:

"D12A" Models 40 Volts
"D48A" Models 80 Volts

Reverse-Polarity Protection Y es (Instantaneous , 6A maximum)
On/Off (Sync.) Control (Pin 4)

➂

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

Output

VOUT Accuracy (50% loads):

+5V Output ±1%
±12V or ±15V Outputs ±3%

Temperature Coefficient ±0.02% per °C
Ripple/Noise (20MHz BW)

➁

See Ordering Guide

Line/Load Regulation See Ordering Guide
Efficiency See Ordering Guide
Isolation V oltage

➃

1500Vdc, minimum

Isolation Capacitance 500pF
Current Limiting Auto-recovery
Overvoltage Protection Zener/transorb clamps, magnetic feedback

Dynamic Characteristics

Transient Response (50% load step) 300µsec max. to ±2% of final value
Switching Frequency 165kHz (±15kHz)

Environmental

Operating Temperature (ambient):

Without Derating –40 to +55°C
With Derating to +100°C (See Derating Curve)

Storage Temperature –40 to +105°C

Physical

Dimensions 2" x 2" x 0.45" (51 x 51 x 11.4mm)
Shielding 5-sided
Case Connections:

"D12A" Models Pin 2 (–V

IN)

"D48A" Models Pin 1 (+VIN)

Case Material Corrosion resistant steel with

non-conductive, epoxy-based, black
enamel finish and plastic baseplate

Pin Material Brass, solder coated
Weight 2.7 ounces (77 grams)

Input Voltage:

"D12" Models 44 Volts
"D48" Models 88 Volts

Input Reverse-Polarity Protection Current must be <6A. Brief

duration only. Fusing recommended.

Output Overvoltage Protection

+5V Output 6.8 Volts, limited duration
±12V Outputs ±15 V olts, limited duration
±15V Outputs ±18 V olts, limited duration

Output Current Current limited.

Max. currents are
model dependent. Units can
withstand a continuous output
short on any output for 3 minutes.

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 oper ation under conditions other than those listed in the
Performance/Functional Specifications T able is not implied.

Absolute Maximum Ratings

TECHNICAL NOTES