TRUMPower

Tumbler Technologies + TRUMPower

3350 Scott Blvd., Building 13 • Santa Clara, California 95054, USA • 408-988-6616 • sales@trumpower.com • www.TRUMPower.com

TWM280 Series

280W Medical & ITE Grade AC/DC Power Supplies

ELECTRICAL SPECIFICATIONS

Input Voltage ........................ 90~264 VAC

Input Frequency ................... 47~63 Hz

Input Current ........................ 3.5A (rms) max. @ 115 VAC,

2A (rms) max. @ 230 VAC

Inrush Current ..................... 30A max. @ 115 VAC, 60A max.

@ 230 VAC at cold start +25°C

Earth Leakage Current ........ 100 µA max. @ 264 VAC

Power Factor ........................ >0.95 @115 VAC, >0.9 @230 VAC

Output Power Ratings .......... See table

Output Voltage Regulation .. ±3%

Ripple and Noise ................ See table

Remote Inhibit ..................... Requires an external TTL high

level signal to inhibit the output

STANDARDS & COMPLIANCES

EMC Standards ................... EN 60601-1-2, EN 55024;

EN 55011/55022 & FCC Class B

Safety Standards ................. UL/IEC/EN 60601-1 3rd Edition,

Agency Approvals ................ UL, CUS, TUV, CE, CB, FCC

Other Compliances ............. RoHS, ErP

FEATURES

• 3" x 5" Industrial Standard Footprint

• 1.18" Low Profile Open Frame

• 0.9 to 0.95 Power Factor

• Medical & ITE Dual Approvals

• 5000m (ITE), 3000m (Medical) Operation Altitude

• Remote On/Off Control

GENERAL SPECIFICATIONS

Efficiency .................................. >91% typ. @ full load, 115 VAC

Switching Frequency ............... 80 KHz

Hold-up Time ........................... >10 ms typ. @ full load, 115 VAC

Operating Temperature ........... 0°C to +70°C

Derating ................................... Derate from 100% at +51°C

linearly to 50% at +70°C

Storage Temperature ............... -20°C to +85°C

Temperature Coefficient .......... ±1%/°C max.

Operating Humidity .................. 0% to 90% non-condensing

Short-Circuit Protection ............ Auto-recovery

Overload Protection ................. Set at 105% to 150% of the

maximum rating, Auto-recovery

Overvoltage Protection ............ Latching type, AC recycle

Withstand Voltage .................... 5,656 VDC from input to output,

2,121 VDC from input to ground,

2,121 VDC from output to ground

MTBF ........................................ >300K hours @ full load and

25°C ambient temperature

calculated per Telcordia

(Bellcore)

Notes:

1. Output Connector Suffix "T" = Terminal block, suitable for all models; Suffix "M" = Mini-fit connector, suitable for 24V and up; Suffix "J" = JST connector, suitable for 24V

and up.

2. R&N are measured at 20 MHz bandwidth with a 47µF electrolytic capacitor and a 0.1µF ceramic capacitor in parallel.

3. All models are equipped with 5Vsb & 12V fan outputs.

MODELS LIST

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