TECHNICAL DATASHEET
MDS Medical AC-DC Adapter
24Volt, 60Watt / MDS-060AAS24 B
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2020, Rev. 08)
1
060AAS24 B
Highlights & Features
• Meet DOE Level VI and ErP Lot 7
• Safety Approvals to IEC 60601-1 3.1rd ed. & IEC 62368-1
• Compliant with IEC 60601-1-2 4th Ed. Requirements
• Low touch current (<0.1mA Normal & <0.3mA single fault)
• Over-Voltage/Load/Temperature & Short Circuit protections
• 1 Million Hours MTBF
• 2 × MOPP isolation
• 3 years warranty
Safety Standards
CB Certified for worldwide use
Model Number: MDS-060AAS24 B
Unit Weight: 360 grams (12.7 ounces)
Dimensions (W x L x H): 62.0x135.0x34.1 mm
2.4x5.3x1.3 in
General Description
The MDS series of external power supply come with universal AC input at 90Vac to 275Vac. Other features include low earth leakage,
risk management report available and the electric shock protection comply with 2 x MOPP. The MDS series is certified for EMC
standards according to EN 55011 for industrial, scientific and medical (ISM) radio-frequency equipment and EN 55032 for Information
Technology Equipment (ITE) radio-frequency equipment. In addition, only recognized Japanese capacitors are used.
The MDS series come with both medical and ITE safety approvals including UL/cUL/CCC/CE and CB certification and are fully
compliant with RoHS Directive for environmental protection.
Model Information
Medical AC-DC Adapter
Model
Number
Input Voltage Range Output
V
oltage
Output Curr
ent
MDS-060AAS24 B 90-275Vac 24Vdc 2.5A
Model Numbering
060
Max wattage in the product series.
Maybe lower at some voltage.
060 → 60W
MDS
Delta Medical
power Supply
-
AAS
Family Code
24
Output Voltage
Single Output:
24 for 24V
B
TECHNICAL DATASHEET
MDS Medical AC-DC Adapter
24Volt, 60Watt / MDS-060AAS24 B
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2020, Rev. 08)
2
Specifications
Input Ratings / Characteristics
Nominal Input Voltage 100-250Vac
Input Voltage Range 90-275Vac
Nominal Input Frequency 50-60Hz
Input Frequency Range 47-63Hz
Input Current (max) 1.5A @ 115Vac, 0.75A @ 230Vac
Efficiency (typ.) 88.3%, Reference Fig.1
Average Efficiency (min) 88% @ 115Vac and 87% @ 230Vac
Standby Power (max) 0.21W @ 115Vac and 0.5W @ 230Vac
Inrush Current (typ.) 50A @ 115Vac, 100A @ 230Vac
Touch Current (max) 0.1mA @ 275Vac NC1), 0.3mA @ 275Vac SFC2)
Earth Leakage Current (max) 0.1mA @ 275Vac NC1), 0.3mA @ 275Vac SFC2)
1) NC: normal condition
2) SFC: single fault condition
Fig.1 Efficiency versus output load
Output Ratings / Characteristics
Nominal Output Voltage 24Vdc
Total regulation ± 5%
Output Current
2.5A
Output Power
60W
Line Regulation (max)
± 0.5%
Load Regulation (max)
± 4.5%
Ripple & Noise (typ.)
43mV pk-pk @ Full load, Reference Fig. 2
Start-up Time (max)
3000ms @ 115Vac
Hold-up Time (min)
10ms @ 115Vac
Dynamic Response (Overshoot & Undershoot O/P Voltage)
± 5% @ 50-100% load
Capacitive load (max)
3300uF
*Periodic and Random Deviation
TECHNICAL DATASHEET
MDS Medical AC-DC Adapter
24Volt, 60Watt / MDS-060AAS24 B
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2020, Rev. 08)
3
(a) 115V
(b) 230V
Fig. 2 Ripple & Noise example, 20MHz BW
Ripple & Noise measurement circuit
0.47uF Ceramic
10uF Electrolytic
PSU Load
Test Fixture
5cm Scope
Mechanical
Case Chassis
PC
Case Cover
PC
Dimensions(W x L x H)
62.0 x 135.0 x 34.1 mm (2.4x5.3x1.3 in)
Unit Weight
360 grams (12.7 ounces)
Indicator
LED
Terminal
Input
C14 socket
Output
4pin Din / Barrel type / Tuning fork type
Environment
Surrounding Air Temperature Operating 0°C to +40°C
Storage
-40°C to +85°C
Operating Humidity
10-95% RH (Non-Condensing)
Operating Altitude 3,000 meters (9,840 feet)
Shock Test (Non-Operating) 50G, 11ms, 3 shocks for each direction
Vibration (Non-Operating) 5-500Hz, 2.09Grms, 20 minute for each three axis
TECHNICAL DATASHEET
MDS Medical AC-DC Adapter
24Volt, 60Watt / MDS-060AAS24 B
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2020, Rev. 08)
4
Protections
Overvoltage (max) 150%, Latch Mode
Over load / Over current (max) 180% of rated load current, Hiccup Mode,
(Non-Latching, Auto-Recovery)
Over Temperature Hiccup Mode,
(Non-Latching, Auto-Recovery)
Short Circuit Hiccup Mode,
(Non-Latching, Auto-Recovery)
Protection Against Shock Class I
Reliability Data
MTBF (typ.) 1 million Hours based on Telecordia SR-332
Safety Standards / Directives
Medical Safety IEC60601-1 3rd and 3.1rd edition CB report
IEC60601-1 edition 3.1rd (2012), EN60601-1 (2006) +
A11 + A1 + A12, CAN/CSA-C22.2 NO. 60601-1:14,
ANSI/AAMI ES60601-1:2005/(R)2012
ITE Safety IEC60950-1 (Ed.2,2005), IEC62368-1, GB4943.1-
2011,
GB9254-2008, GB17625.1-2003
CE
MDD Directive 93/42/EEC
Galvanic Isolation Input to Output 4000 Vac
Input to Ground 1500 Vac
Output to Ground 500 Vac
TECHNICAL DATASHEET
MDS Medical AC-DC Adapter
24Volt, 60Watt / MDS-060AAS24 B
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2020, Rev. 08)
5
EMC (Compliant with IEC 60601-1-2 4th Ed. Requirements)
EMC / Emissions EN55011/EN55032,FCC Title 47:Class B
Harmonic Current Emissions
IEC61000-3-2
Meet Class A limit
Immunity to
Voltage Flicker
IEC61000-3-3
Electrostatic Discharge IEC61000-4-2 Level 4 Criteria A1)
Air Discharge: 15kV
Contact Discharge: 8kV
Radiated Field IEC61000-4-3 Criteria A1)
80MHz-2700MHz, 10V/m AM modulation
385MHz-5785MHz, 28V/m Pulse mode and other
modulation
Electrical Fast Transient / Burst
IEC61000-4-4
Level 3 Criteria A
1)
:2kV
Surge IEC61000-4-5 Level 3 Criteria A1)
Common Mode3): 2kV
Differential Mode4): 1kV
Conducted IEC61000-4-6 Level 2 Criteria A1)
150kHz-80MHz, 3Vrms, 6Vrms at ISM bands and
Amateur radio bands
Power Frequency Magnetic Fields IEC61000-4-8 Criteria A1)
Magnetic field strength 30A/m
Voltage Dips IEC61000-4-11
Criteria A1)
0% UT, 0.5 cycle (10ms)
, 0o/45o/90o/135o/180o/225o/270o/315o/360o
Criteria B2)
0% UT, 1 cycle (20ms), 0o
Criteria A1)
70% UT, 25 cycle (500ms), 0o
Criteria B2)
0% UT, 250 cycle (5000ms), 0
o
1) Criteria A: Normal performance within the specification limits
2) Criteria B: Output out of regulation, or shuts down during test. Automatically restore to normal operation after test.
3) Asymmetrical: Common mode (Line to earth)
4) Symmetrical: Differential mode (Line to line)
TECHNICAL DATASHEET
MDS Medical AC-DC Adapter
24Volt, 60Watt / MDS-060AAS24 B
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2020, Rev. 08)
6
Block Diagram
TECHNICAL DATASHEET
MDS Medical AC-DC Adapter
24Volt, 60Watt / MDS-060AAS24 B
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2020, Rev. 08)
7
Dimensions
W x L x H: 62.0 x 135 x 34.1 mm
Item
Device
Description
1
Cover
2
Chassis
3
Power Cord
4
Socket (IEC60320, C14)
5
Lens
TECHNICAL DATASHEET
MDS Medical AC-DC Adapter
24Volt, 60Watt / MDS-060AAS24 B
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2020, Rev. 08)
8
Functions
Start-up Time
The time required for the output voltage (Vo) to reach 90% of its set value, after the input AC voltage is applied.
Rise Time
The time required for the output voltage (Vo) to change from 10% to 90% of its steady state value.
Hold-up Time
Hold up time is the time when the AC input collapses and output voltage retains regulation for a certain period of time. The time
required for the output to reach 95% of its set value, after the input voltage is removed.
■ Graph illustrating the Start-up Time, Rise Time, and Hold-up Time
TECHNICAL DATASHEET
MDS Medical AC-DC Adapter
24Volt, 60Watt / MDS-060AAS24 B
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2020, Rev. 08)
9
Dynamic Response
The power supply output voltage will remain within ±3% of its
steady state value, when subjected to a dynamic load change
from 50 to 100% of its rated current.
Inrush Current
Inrush current is the input current that occurs when the input
voltage is first applied. For AC input voltages, the maximum peak
value of inrush current will occur during the first half cycle of the
applied AC voltage. This peak value decreases exponentially
during subsequent cycles of AC voltage.
Overvoltage Protection
The power supply’s overvoltage circuit will be activated when its
internal feedback circuit fails. The output voltage shall not exceed
its specifications defined on Page 4 under “Protections”. Power
supply will latch off, and require removal/re-application of input
AC voltage in order to restart.
Short Circuit Protection
The power supply’s output OLP/OCP function also provides
protection against short circuits. When a short circuit is applied,
the output current will operate in “Hiccup mode”, as shown in the
illustration in the OLP/OCP section on this page. The power
supply will return to normal operation after the short circuit is
removed.
Overload & Over current Protections
The power supply’s Overload (OLP) and Over current (OCP)
Protections will be activated when output current is between
110% and 130% of IO (Max load). Upon such an occurrence, VO
will start to drop. Once the power supply has reached its
maximum power limit, the protection will be activated. and the
power supply will go into “Hiccup mode” (Auto-Recovery). The
power supply will recover once the fault condition causing the
OLP and OCP is removed and IO is back within the specified limit.
Additionally, if the IO is <130% but >110% for a prolong period of
time (depending on the load), the Over Temperature Protection
(OTP) will be activated due to high temperature on critical
components. The power supply will then go into hiccup mode until
the fault is removed; and, the input voltage is removed, then
reapplied.
Over Temperature Protection
As mentioned above, the power supply also has Over
Temperature Protection (OTP). This is activated when the
overload condition persists for an extended duration and the
output current is below the overload trigger point but >100% load.
In the event of a higher operating condition at 100% load, the
power supply will run into OTP when the surrounding air
temperature is higher than the operating temperature. When
activated, the output voltage will go into hiccup mode until the
input voltage is removed; then, reapplied, and the surrounding air
temperature drops to its normal operating temperature.
TECHNICAL DATASHEET
MDS Medical AC-DC Adapter
24Volt, 60Watt / MDS-060AAS24 B
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (September 2020, Rev. 08)
10
Certificate
Attention
Delta provides all information in the datasheets on an “AS IS” basis and does not offer any kind of warranty through the information for
using the product. In the event of any discrepancy between the information in the catalog and datasheets, the datasheets shall prevail
(please refer to www.DeltaPSU.com for the latest datasheets information). Delta shall have no liability of indemnification for any claim
or action arising from any error for the provided information in the datasheets. Customer shall take its responsibility for evaluation of
using the product before placing an order with Delta.
Delta reserves the right to make changes to the information described in the datasheets without notice.
Delta has been certified as meeting the requirement of ISO 13485: 2003 and EN ISO 13485:2012 for the design
and manufacture of switching power supply and adaptor for medical device.
Delta is approved for the UL Total Certification Program (TCP) approved client laboratory for IEC62368-1. Delta
also has participated UL Client Test Data Program (CTDP) for IEC 60601.
Meet DOE Level VI and ErP Lot 7 Efficiency Requirement
