TRUMPower
450 WATT MEDICAL POWER SUPPLIES
DESCRIPTION
(LVD)
TM450 SERIES
The TM450 series comprising single and multiple
output models for 450-480 watts of continuous
output power is specially designed for medical
applications. They operate at 90 to 264VAC input
voltage without the need of a selector strap. The
units are constructed on a printed circuit board
with a U-bracket for mechanical support and heat
sinking. A cover-and-fan assembly can be added
during manufacturing.
RoHS
FEATURES
‧ EN61000-3-2 class A and D compliant
‧ Power Factor 0.98 typical
Safety Standard Approvals：
‧ Overvoltage protection
‧ Short-circuit protection
UL 60601-1
CSA C22.2 No. 601.1
‧ Thermal protection
‧ Power Fail Detect (PFD)
‧ 100% burn-in at full rated load
‧ Remote sense on output #1 and output #2
‧ Remote inhibit – TTL high disables output
‧ Compliant with RoHS requirements
TÜV EN60601-1
INPUT SPECIFICATIONS
ENVIRONMENTAL SPECIFICATIONS
Operating temperature： 0ºC to +70ºC
90 to 264VAC
47 to 63Hz
7.1A（ rms） for 115VAC
Input voltage：
Input frequency:
Input current：
Storage temperature：
Relative humidity：
Derating：
-40ºC to +85ºC
5% to 95% non-condensing
Derate from 100% at +50ºC
linearly to 50% at +70ºC
3.5A（ rms） for 230VAC
Earth leakage current：
100µA max. @115VAC, 60Hz
165µA max. @ 230VAC, 50Hz
GENERAL SPECIFICATIONS
OUTPUT SPECIFICATIONS
Switching
frequency：
60KHz ±10KHz
Output voltage/current：
Total output power：
Ripple and Noise：
See rating chart
See rating chart
Power factor：
Efficiency：
Hold-up time：
Line regulation：
Inrush current：
0.98 typical
80% minimum on all models
12 msec minimum at 110VAC
2% peak to peak maximum
Provided on output #1 only; set
at 115 – 140% of its nominal
output voltage
Overvoltage protection：
±0.2% maximum at full load
40 amps @ 115VAC or 80 amps
@ 230VAC, at 25ºC cold start
4000VAC from input to output
1500VAC from input to ground
500VAC from output to ground
300,000 hours minimum at full load
at 25ºC ambient, calculated per
MIL-HDBK- 217F
All outputs protected to short
circuit conditions
Overcurrent protection：
Withstand voltage：
MTBF：
All outputs ±0.04%/ºC maximum
Temperature coefficient：
Transient response：
Maximum excursion of 4% or
better on all models, recovering
to 1% of final value within 500µs
after a 25% step load change
EMC Performance (EN60601-1-2)
TTL logic high for normal
Operation and TTL logic low
upon loss of input power. This
signal appears at least 1ms prior
to master output dropping
5% below its nominal value.
This signal also provides a
minimum delay of 100ms
after master output is within
regulation.
PFD signal：
Class B conducted, Class A
radiated
Harmonic distortion, Class A and D
Line flicker
ESD, ±8KV air and ±6KV contact
Radiated immunity, 3V/m
Fast transient/burst, ±2KV
Surge, ±1KV diff, ±2KV com.
Conducted immunity, 3Vrms
Magnetic field immunity, 3A/m
Voltage dips, 30% reduction for
500ms, 60% reduction for 100ms
and >95% reduction for 10ms
EN55011:
EN61000-3-2:
EN61000-3-3:
EN61000-4-2:
EN61000-4-3:
EN61000-4-4:
EN61000-4-5:
EN61000-4-6:
EN61000-4-8:
Requires an external TTL high
level signal to inhibit outputs for
standard models.
Remote inhibit：
Tumbler Technologies + TRUMPower
3350 Scott Blvd., Bldg. 13, Santa Clara, California 95054, USA
Phone: 408-988-6616 ● Fax: 408-988-6622 ● email: sales@trumpower.com ● Website: www.TRUMPower.com
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