DC/DC Converter TAM 25 Series 25 Watt Features 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 The TAM series is a range of high performance 25W DC/DC- converters with very high power density. They provide a cost effective Remote ON/OFF solution in industrial, datacommunication and telecom applications Shielded Metal Case with limited space on PCB. These converters are built in SMT-hybrid technology on a ceramic substrate which together with a metal 2 Year Product Warranty 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. Models Ordercode 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 % 18 – 36 VDC TAM 25-2421 +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 % 36 – 72 VDC TAM 25-4821 +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 % 18 – 36 VDC TAM 25-2431 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 % 36 – 72 VDC TAM 25-4831 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 % www.tracopower.com Page 1 DC/DC Converter TAM 25 Series 25 Watt 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 All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated. www.tracopower.com Page 2 DC/DC Converter TAM 25 Series 25 Watt General Specifications Isolation resistance Input/Output (500 VDC) > 100 M Ohm Switching frequency (fixed) 300 kHz typ. (Pulse width modulation PWM) Remote ON/OFF (optional): ON: 2.5 ... 5.5 VDC or open circuit. OFF: 0 ... 1 VDC or short circuit pin 1 and –Vin Physical Specifications Case material – single- & dual output models: black coated metal with insulated baseplate – triple output- and B- version models: Aluminum anodized Soldering temperature max. 260 °C / 10 sec. Reduction of conducted Noise with external Capacitor In order to meet conducted emissions EN55022-A and EN55011-A a capacitor at the input side of triple output models and B-version models has to be installed. Note: +Vin +Vin +Out1 C1 = Electrolytic capacitor low ESR type or MLCC Cap for SMD (TCCR or THCR type from C1 1μF Nippon Chemi-Con) Com to 10μF Cext The value of C1 is between 1μF and 10 μF, +Out2 depending on the load For 24V input models use 50V capacitor. –Vin –Out3 For 48V input models use 100V capacitor. –Vin Case Output Voltage Adjustment Single Output Dual Output Triple Output +Vout –Vout +Vout 1 CW CW CW 100K 100K 100K Trim Trim Trim Pot. Pot. Pot. CCW CCW CCW –Vout Common Common Output voltage adjustment range: +5% to –20% All specifications valid at nominal input voltage, full load and +25°C after warm-up time unless otherwise stated. www.tracopower.com Page 3 TAM25 Load DC/DC Converter TAM 25 Series 25 Watt Outline Dimensions mm (inches) Triple Output Models Single- and Dual Output and B-Version Models 10.16 10.16 10.16 10.2 10.16 (0.4) (0.4) (0.4) (0.4) (0.4) 1 2 3 4 5 4 1 Bottom view 5 2 Bottom view 3 6 7 10 9 8 7 6 10.2 10.16 10.16 10.16 10.16 45.72 (1.8) (0.4) (0.4) (0.4) (0.4) (0.4) 6 12.7 10.7 ±0.3 3.5 61 ±0.3 50.8 (2.0) (0.14) (0.42 ±0.01) (2.4 ±0.01) (0.24) (0.5) Pin ø 1 mm (0.04) Pin ø 1 mm (0.04) Weight: 55g (0.12lb) Weight: 60g (0.13lb) Pin-Out Pin-Out Pin Single Dual Pin Triple B-Version B–Version 24VDC 48VDC 1 Remote on/off Remote on/off 1 Remote on/off Remote on/off Remote on/off 2 +Vin (Vcc) +Vin (Vcc) 2 Case Case Case 3 –Vin (GND) –Vin (GND) 3 +Vin (Vcc) –Vin (GND) +Vin (Vcc) 4 Trim Trim 4 –Vin (GND) +Vin (Vcc) –Vin (GND) 5 –Vout –Vout 5 C ext. Cext. C ext. 6 +Vout Common 6 –Vout 3 No function No function 7 No pin +Vout 7 +Vout 2 No function No function 8 Common –Vout –Vout 9 +Vout 1 +Vout +Vout 10 Trim Trim Trim 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 4 @ 50.8 (2.0) 10.16 10.16 10.16 10.2 (0.4) (0.4) (0.4) (0.4) 10.16 12.7 5.08 (0.2) (0.4) (0.5) 71 ±0.3 (2.8 ±0.01) 63.5 ±0.3 3.75 (2.5 ±0.01) (0.15)