DC/DC Converter
TEF Series
Features
Full SMD design with Ceramic Capacitors
Wide 2:1 Input range
High Efficiency
Short Circuit Protection
Metal Case, 24–Pin DIP
2 Year Product Warranty
3 Watt
The TEF-series is a family of isolated dc/dc-converters that offers a
cost effective solution for applications requiring miniature size and
high performance features. SMT-design with exclusive use of ce-
ramic capacitors guarantees a very high reliability with an MTBF of
over 1’000’000 hours. A highly automated production with 100%
parameter test ensures a high quality standard of this product.
Models
Ordercode
TEF 0510
TEF 0511
TEF 0512
TEF 0521
TEF 0522
TEF 1210
TEF 1211
TEF 1212
TEF 1221
TEF 1222
TEF 2010
TEF 2011
TEF 2012
TEF 2021
TEF 2022
TEF 2410
TEF 2411
TEF 2412
TEF 2421
TEF 2422
TEF 4810
TEF 4811
TEF 4812
TEF 4821
TEF 4822
Input voltage range
Output voltage
3.3
5
12
±12
±15
3.3
5
12
±12
±15
3.3
5
12
±12
±15
3.3
5
12
±12
±15
3.3
5
12
±12
±15
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
Output current max.
650 mA
500 mA
240 mA
± 125 mA
± 95 mA
700 mA
550 mA
250 mA
± 125 mA
± 100 mA
700 mA
550 mA
250 mA
± 125 mA
± 100 mA
700 mA
600 mA
250 mA
± 125 mA
± 100 mA
700 mA
600 mA
250 mA
± 125 mA
± 100 mA
Efficiency typ.
69
72
74
74
74
71
73
78
78
78
72
75
80
80
80
76
80
82
82
83
76
80
82
82
83
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
%
4.5 – 7 VDC
9 – 18 VDC
10 – 30 VDC
18 – 36 VDC
36 – 72 VDC
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Page 1
DC/DC Converter
TEF Series
3 Watt
Input Specifications
Input current no load
5 Vin models:
12 Vin models:
20 Vin models:
24 Vin models:
48 Vin models:
5 Vin models:
12 Vin models:
20 Vin models:
24 Vin models:
48 Vin models:
5 Vin models:
12 Vin models:
24 Vin models:
60
15
25
7
6
720
310
180
140
70
mA typ.
mA typ.
mA typ.
mA typ.
mA typ.
mA typ.
mA typ.
mA typ.
mA typ.
mA typ.
Input current full load
Surge voltage
(1 sec. max.)
7.5 V max.
15 V max.
30 V max.
Pi-Filter
Input filter
Output Specifications
Voltage set accuracy
Regulation
– Input variation Vin min. to Vin max.
– Load variation 10 – 90 %;
single output:
dual output:
±3%
± 0.5 % max.
± 1.0 % max.
± 2.0 % max.
80 mVpk-pk max.
± 0.02 % / °C
continuous
– Single output models
– Dual output models
2200 µF max.
2200 µF max.
Ripple and noise
(20 MHz Bandwidth)
Temperature coefficient
Short circuit protection
Capacitive load
General Specifications
Temperature ranges
– Operating
– Case
– Storage
– 25 °C ... +75 °C
+ 95 °C
– 40 °C ... +115 °C
95 % rel H max.
>1’000’000 h @ 25 °C
1’000 VDC
1’000 VDC
500 VDC
500 pF typ.
>1‘000 M Ohm
25 – 85 KHz (depending on load)
ations
Humidity
(non condensing)
Reliability, calculated MTBF
(MIL-HDBK-217 E)
Isolation voltage
– Input/Output
– Input/Case
– Output/Case
– Input/Output
– Input/Output
Isolation capacity
Isolation resistance
Switching frequency
All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.
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Page 2
DC/DC Converter
TEF Series
3 Watt
Physical Specifications
Case material
Potting material
Weight
Soldering temperature
Steel nickel-plated
Silicon rubber TSE
(UL 94V-O)
14 g (0.49 oz)
max. 260°C / 10 sec
Outline Dimensions mm (inches)
(0.08
±0.02
)
2.0
±0.5
2.54
(0.1)
32
±0.5
(1.25
±0.02
)
24
23
22
Bottom view
1
2
3
2.54 2.54
(0.1) (0.1)
Pin-Out
Pin
1
2
3
10
11
12
13
14
15
22
23
24
Single
+Vin (Vcc)
No function
No function
–Vout
+Vout
–Vin (GND)
–Vin (GND)
+Vout
–Vout
No function
No function
+Vin (Vcc)
Dual
+Vin (Vcc)
–Vout
Common
Common
+Vout
–Vin (GND)
–Vin (GND)
+Vout
Common
Common
–Vout
+Vin (Vcc)
27.94
(1.1)
17.78
(0.7)
15
14
13
0.5
(0.02)
10
11
12
2.54
2.54 2.54
(0.1)
(0.1) (0.1)
2.4
±0.5
(0.1
±0.02
)
15.24
(0.6)
20
±0.5
(0.8
±0.02
)
5
(0.2)
10
±0.5
(0.4
±0.02
)
( ) = inches
Pin ø 0.5 (0.02)
Specifications can be changed without notice
Rev. 12/00
Jenatschstrasse 1
•
CH-8002 Zurich
•
Switzerland
Tel. +41-1284 2911
•
Fax +41-1201 1168
•
e-mail: sales@traco.ch
•
internet: http://www.tracopower.com
Page 3
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