TRACO TAM25-4812, TAM25-4812B, TAM25-4811B, TAM25-4811, TAM25-2431 Datasheet

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Features

DC/DC Converter

TAM 25 Series 25 Watt

Models

Single-, Dual-, and Triple Output Models
Wide 2:1 Input Range
Very high Efficiency up to 84%
Extended Temp. Range available
Internal Filter to meet EN 55022, Class A

and FCC Part 15, Level A
I/O-Isolation 500VDC (1’500VDC for Triple

Output Models)
Small Dimensions: Single- and

Dual Output Models: 50x50x10.5mm,
Triple Output Models: 71x61x10.5mm

Remote ON/OFF
Shielded Metal Case
2 Year Product Warranty

The TAM series is a range of high performance 25W DC/DC­converters with very high power density . They provide a cost effective
solution in industrial, datacommunication and telecom applications
with limited space on PCB. These converters are built in SMT-hybrid
technology on a ceramic substrate which together with a metal
case provide a very good heat dissipation. No additional heatsink
is necessary for operating temperature up to +75 °C (resp. +85°C)
at full load.

Or de rcod e Input voltage range Output 1 Output 2 Output 3 Efficiency typ.

TAM 25-1211 9.5 – 18VDC 5 VDC/ 4.4 A 75%

TAM 25-2411 5 VDC/ 5 A 82 %
TAM 25-2412 12 VDC/ 2 A 83 %
TAM 25-2421

18 – 36 VDC

+12 VDC/ 1 A –12 VDC/ 1 A 83 %

TAM 25-2422 +15 VDC/ 0.83 A –15 VDC/ 0.83 A 83 %
TAM 25-4811 5 VDC/ 5 A 82 %

TAM 25-4812 12 VDC/ 2 A 83 %
TAM 25-4821

36 – 72 VDC

+12 VDC/ 1 A –12 VDC/ 1 A 83 %

TAM 25-4822 +15 VDC/ 0.83 A –15 VDC/ 0.83 A 83 %

Models with extended Temp. Range –25 to +85°C

TAM 25-2411-B 5 VDC/ 5 A 83 %
TAM 25-2412-B 12 VDC/ 2.5 A 84 %
TAM 25-2431

18 – 36 VDC

5 VDC/ 3.8 A +12 VDC/ 0.25 A –12 VDC/ 0.25 A 84 %

TAM 25-2432 5 VDC/ 3.1 A +15 VDC/ 0.31 A –15 VDC/ 0.31 A 84 %

TAM 25-4811-B 5 VDC/ 5 A 83 %
TAM 25-4812-B 12 VDC/ 2.5 A 84 %
TAM 25-4831

36 – 72 VDC

5 VDC/ 3.8 A +12 VDC/ 0.25 A –12 VDC/ 0.25 A 84 %

TAM 25-4832 5 VDC/ 3.1 A +15 VDC/ 0.31 A –15 VDC/ 0.31 A 84 %

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All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated.

Input Specifications

Input current (no load) 12 Vin models 35 mA typ.

24 Vin models 30 mA typ.
48 Vin models 20 mA typ.

Input current (full load) 12 Vin models 3’000 mA typ.

24 Vin; 5 Vout models: 1’270 mA typ.
24 Vin; 12 & ±12 Vout models: 1’210 mA typ.
24 Vin; other output models: 1’250 mA typ.
48 Vin; 5 Vout models: 635 mA typ.
48 Vin; 12 & ±12 Vout models: 605 mA typ.
48 Vin; other output models: 625 mA typ.

Surge voltage (only triple- and B- version models) 24 Vin models: 39 VDC max.. (1 sec. max.)

48 Vin models: 75 VDC max. (1 sec. max.)

Conducted noise (input) EN 55022 level A, FCC part 15, level A

Output Specifications

Voltage set accuracy – main output ± 1.0 %

– auxilary outputs dual: ± 1.5 %

triple: ± 4.0 %

Output voltage adjustment + 5 % / – 20%
Regulation – Input variation Vin min. to Vin max.

– single- and triple output models ± 0.5 % max.
– dual output models ± 1.0 % max.

– Load variation 10 – 100 %:

– single output models ± 1.0 % max.
– dual output models ( balanced load ) ± 2.0 % max.
– triple output models Out 1: ± 1.0 % max.

Out 2 & 3: ± 3.0 % max. (> 10% load at Out 1)

– Cross regulation ± 3.0 % max.

Ripple and noise (20 MHz Bandwidth) 120 mVpk-pk max
Temperature coefficient ± 0.02 % / °C
Output current limitation 105% – 130% of Iout max.

foldback mode
Short circuit protection foldback, indefinite (automatic recovery)
Capacitive load (at min load) single output models: 500 µF max.

dual output models: 250 µF max.

triple output models: 100 µF max.

General Specifications

Temperature ranges – Operating standard: – 25 °C ... + 75 °C (no derating)

extended: – 25 °C ... + 85 °C (no derating)

– Case temperature standard: + 95 °C max.

extended: + 115 °C max.

– Storage – 55 °C ... + 125 °C

Humidity (non condensing) 95 % rel H max.
Reliability, calculated MTBF (MIL-HDBK-217 E) > 400’000 h @ + 25 °C
Isolation voltage Input/Output single- & dual output models: 500 VDC

triple output- and B- version models: 1‘500 VDC

Isolation capacity Input/Output 10 nF typ

DC/DC Converter

TAM 25 Series 25 Watt