CHD250 Series
250 Watts
• 250 W Convection-cooled
• Industry Standard 3” 5”Package
x
• 80 VAC to 300 VAC Input
• 5V Standby (optional)
• <0.5W Standby Power
• IT & Medical (BF) Safety Approvals
• Power Fail & Inhibit Signals
• 3 Year Warranty
AC-DC Power Supplies
Dimensions:
The universal AC input CHD250 provides 250W of convection cooled output power in a 3” x 5”
industry standard package, over the temperature range -20°C to +50°C with derating to +70°C.
Approved for IT and Medical and with a feature set including a 5V standby output, <0.5W input
power when in standby mode, power fail and inhibit signals the CHD250 is ideal for a wide range of
applications where fan cooling is not desirable.
CHD250:
5.00 x 3.00 x 1.43” (115 x 76 x 36 mm)
CHD250-C:
5.50 x 3.48 x 1.75” (139.7 x 88.5 x 44.4 mm)
Models & Ratings
Output Voltage 1
12 V
15 V
24 V
28 V
48 V
Output Current V1
20.8 A
16.7 A
10.4 A
8.9 A
5.2 A
Standby Supply V2
(optional)
5.0 V / 0.5 A
5.0 V / 0.5 A
5.0 V / 0.5 A
5.0 V / 0.5 A
5.0 V / 0.5 A
Output Power
250 W
250 W
250 W
250 W
250 W
Model Number
CHD250PS12
CHD250PS15
CHD250PS24
CHD250PS28
CHD250PS48
(1,2)
Notes
1. Add suffix ‘-C’ for cover version e.g. CHD250PS24-C (derating will be applicable, see derating curve fig. 8).
2. Add suffix -A for 5 V standby option or -AC for standby and cover options combined, (derating will be applicable, see derating curve fig. 8).
Mechanical Details
ø0.14 (3.5)
thru in 4 positions
5.00 ±0.02 (127.0 ±0.51)
L3
Input Connector
CON1
2.55
(64.7)
1
2
A
C64
3.00 ±0.02
(76.2 ±0.51)
C53
T1
+VE
Output
Voltage
Control
-VE
E
0.22 0.92 0.22
(5.71) (23.4) (5.71)
4.55 (115.5)
Output
Terminals
M4 Screws in
2 positions.
Torque to
8lbs-in
(90 cNm) max.
1.43 ±0.04
(36.3 ±1.0)
Pin 2
Pin 1
Pin 10
Pin 9
Detail A
Signals Connector CON4
10 Way JST B10B-PHDSS
Scale 3:1
1
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CHD250 Series
Input
Characteristic
Input Voltage - Operating
Input Voltage - Fault Condition
Input Frequency
Power Factor
Input Current - Full Load
47
50/60
>0.93
2.4/1.3
0.5
3.2
3.1
No Load Input Power
3.8
3.1
3.5
2.8
Inrush Current
Earth Leakage Current
Input Protection
20
85/170
5 A/250 V internal fuse in both AC lines
40
250
Minimum
80
Typical
115/230
Maximum
264
300
63
AC-DC Power Supplies
Units
VAC
VAC
Hz
A
W
W
W
W
W
W
W
A
µA
Notes & Conditions
Derate output power < 90 VAC. See fig. 1
5 seconds max
Agency approval, 47-63 Hz
EN61000-3-2 class A compliant
115/230 VAC
All models, when inhibit activated
CHD250PS12 - 115V AC
CHD250PS12 - 230V AC
CHD250PS24 - 115V AC
CHD250PS24 - 230V AC
CHD250PS48 - 115V AC
CHD250PS48 - 230V AC
264 VAC cold start
Typ. 115/230 VAC 50 Hz, Max 264 VAC 60 Hz
Input Voltage Derating
Figure 1
300
250
Output Power (W)
150
100
50
80
85
90
Input Voltage (VAC)
5 Seconds Maximum
264
300
200
Output
Characteristic
Output Voltage
Initial Set Accuracy
Output Voltage Adjustment
Minimum Load
Start Up Delay
Hold Up Time
Drift
Line Regulation
Load Regulation
Transient Response
Ripple & Noise
Overvoltage Protection
Overload Protection
Short Circuit Protection
Temperature Coefficient
Overtemperature Protection
Patient Leakage Current
83
100
µA
0.05
%/˚C
Not fitted
264 VAC/60 Hz
115
110
0
1.3
15
±0.2
±0.5
±0.5
<4
1
140
150
2.0
Minimum
12
Typical
Maximum
48
±1
+5/-4
Units
VDC
%
%
A
s
ms
%
%
%
%
% pk-pk
%
%
115/230 VAC full load from input AC turn on
90 VAC, full load
After 20 min warm up
90-264 VAC at 50% load
On V1, from 0-100% load
Recovery within 1% in less than 500 µs
for a 50-75%-50% load change
20 MHz bandwidth
Vnom DC. Output 1, recycle input to reset
Trip & Restart characteristic V1
Shutdown and auto recovery
Notes & Conditions
See Models and Ratings table
50% load, 115/230 VAC
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2
CHD250 Series
General
Characteristic
Efficiency
Isolation: Input to Output
Input to Ground
Output to Ground
4000
1500
1500
45-280
Switching Frequency
31
63
56-91
Power Density
Mean Time Between Failure
213
0.94 (425)
Weight
0.97 (441)
1.36 (619)
1.40 (636)
11.7
Minimum
Typical
93-94
AC-DC Power Supplies
Maximum
Units
%
VAC
VAC
VAC
kHz
kHz
kHz
kHz
W/in
3
kHrs
Notes & Conditions
230 VAC full load
2 x MOPP
1 X MOPP
1 X MOPP
PFC
Boost
Main converter
Standby (optional)
MIL-HDBK-217F, Notice 2 +25 °C GB
CHD250PSxx
CHD250PSxx-A
CHD250PSxx-C
CHD250PSxx-AC
lb (g)
Efficiency Vs Load
Figure 2
12 V Models
Efficiency (%)
100.00%
90.00%
80.00%
70.00%
60.00%
50.00%
40.00%
30.00%
20.00%
10.00%
0
20%
30%
40%
50%
60%
70%
80%
90%
100%
load %
PS12 115V
PS12 230V
Figure 3
24 V Models
100.00%
90.00%
80.00%
70.00%
60.00%
50.00%
40.00%
30.00%
20.00%
10.00%
0
20%
30%
40%
50%
60%
70%
80%
90%
100%
load %
PS24 115V
PS24 230V
Figure 4
48 V Models
100.00%
90.00%
80.00%
70.00%
60.00%
50.00%
40.00%
30.00%
20.00%
10.00%
0
20%
30%
40%
50%
60%
70%
80%
90%
100%
load %
PS48 115V
PS48 230V
Efficiency (%)
Efficiency (%)
3
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CHD250 Series
Signals & Controls
Characteristic
Power Fail (AC-OK)
Inhibit
Standby Supply (optional)
Remote Sense
AC-DC Power Supplies
Notes & Conditions
Uncommitted isolated optocoupler transistor, normally off when AC is good (see fig.5)
Provides 5 ms warning of loss of output from AC failure off when AC is healthy.
8V
&
Uncommitted isolated optocoupler diode, powered diode inhibits the supply (see fig.6
Max
7)
5V/0.5A Isolated supply present when AC applied.
Compensates for 0.25V per lead, 0.5V total drop.
Power Fail
Figure 5
Inhibit (High)
Figure 6
5V
Inhibit (Low)
Figure 7
V
5V
POWER SUPPLY
POWER SUPPLY
POWER SUPPLY
8V Max 3 mA
Pin 2 CON 4
Power Fail
Collector
Transistor On: Input & Output Not OK
Transistor Off: Input & Output OK
5 mA
8 V Max
Inhibit Hi
Pin 4 CON 4
8 V Max
Inhibit Hi
Pin 4
CON 4
5 mA
Inhibit Lo
Pin 3 CON 4
1K
Power Fail
Emitter
Pin 1 CON 4
Inhibit Lo
Pin 3 CON 4
Signal Connector
VI RTN
Pin 7 CON 4
Signal Connector
VI RTN
Pin 7 CON 4
Signal Connector
5
Environmental
Characteristic
Operating Temperature
Storage Temperature
Cooling
Humidity
Operating Altitude
Shock
Vibration
V
Minimum
-20
-40
Typical
Maximum
+70
+85
95
5000
4000
Units
°C
°C
Notes & Conditions
See derating curve, fig.8. and Thermal
Considerations on page 8.
Convection cooled
%RH
m
Non-condensing
Information Technology
Medical
S
±3 x 30g shocks in each plane, total 18 shocks. 30g = 11ms (±0.5msec), half sine. Conforms to EN60068-2-27 & EN60068-2-47
Single axis 10 - 500 Hz at 2g sweep and endurance at resonance in all 3 planes. Conforms to EN60068-2-6
Temperature Derating Curve
Figure 8
Standard & Covered (-C) versions
300
250
Output Power (W)
217
200
125
108.5
Covered Convection
Open Frame Convection
Output Power (W)
220
165
126.5
110
82.5
Open Frame Convection
Covered Convection
5 V Standby (-A & -AC) versions
0
-20
Ambient Temperature (°C)
50
70
0
-20
Ambient Temperature (°C)
50
70
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4
CHD250 Series
EMC: Emissions
Phenomenon
Conducted
Radiated
Harmonic Current
EN55022/11
EN55022/11
EN61000-3-2
Standard
AC-DC Power Supplies
Test Level
Class B
Class A
Class B
Class A
Notes & Conditions
With 2 turn Wurth 742-700-56 core or similar
on AC cable
All models
EMC: Immunity
Phenomenon
Low Voltage PSU EMC
Radiated
EFT
Surges
Conducted
Standard
EN61204-3
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
EN55024 (100 VAC)
Test Level
High severity level
3
3
Installation class 3
3
Int >95% (0 VAC), 8.3ms
Dip 30% (70 VAC), 416ms
Int >95% (0 VAC), 4160ms
Int >95% (0 VAC), 10.0ms
EN55024 (240 VAC)
Dip 30% (168 VAC), 500ms
Int >95% (0 VAC), 5000ms
Dips and Interruptions
EN60601-1-2 (100 VAC)
Int >95% (0 VAC), 10.0ms
Dip 60% (40 VAC), 100ms
Dip 30% (70 VAC), 500ms
Int >95% (0 VAC), 5000ms
Int >95% (0 VAC), 10.0ms
EN60601-1-2 (240 VAC)
Dip 60% (96 VAC), 100ms
Dip 30% (168 VAC), 500ms
Int >95% (0 VAC), 5000ms
Criteria
as below
A
A
A
A
A
B
B
A
B
B
A
A
A
B
A
A
A
B
Derate output power to 120 W
Notes & Conditions
Safety Approvals
Safety Agency
CB Report
UL
TUV
CE
Equipment Protection Class
Safety Standard
IEC60950-1 Ed 2
IEC60601-1 Ed 3 Including Risk Management
UL60950-1 (2007), CSA 22.2 No.60950-1-1:08
ANSI/AAMI ES60601-1:2005 & CSA C22.2, No.60601-1:08
EN60950-1
EN60601-1
LVD & RoHS
Class I & BF
Means of Protection
Primary to Secondary
Primary to Earth
Secondary to Earth
2 x MOPP (Means of Patient Protection)
1 x MOPP (Means of Patient Protection)
1 x MOPP (Means of Patient Protection)
IEC60601-1 Ed 3
See safety agency conditions of acceptibility for details
Category
Notes & Conditions
Information Technology
Medical
Information Technology
Medical
Information Technology
Medical
5
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