PACSR28018
28V Output AC/DC Converter, Module Package
FEATURES
Full Load Efficiency up to 93% @220VAC
Metal Case Box Type Package
Package Dimension:
110.8x50.8x13.7mm (4.36”x2.0”x0.54”)
Operating Baseplate Temperature Range - 40°C to
+100°C
Input Brown-Out, Output OCP, OTP, OVP, SHORT
protection
3000VAC Isolation
RoHs Compliant
CE Mark
EMC compatible: CISPR22 ClassB(with external EMC
filter)
ISO 9001, ISO 14001 certified manufacturing facility
UL/cUL 60950-1 (US&Canada)
Prohibit parallel application
The PACSR28018, a wide input voltage range of 85~265VAC, and single isolated output converter, is the latest product offering from a
world leader in power systems technology and manufacturing ― Delta Electronics, Inc. Such module type ACDC converter can provide 500W,
28V regulated DC output voltage with full load efficiency up to 93% @220Vac; The PACSR28018 offers Brown-out, output OCP, OTP, OVP
and Short protections, and allows a wide operating baseplate temperature range of –40°C to +100°C. With creative design technology and
optimization of component placement, this converter possess outstanding electrical and thermal performance, as well as high reliability under
extrmely harsh operating conditions.
(All specifications valid base on the connection of figure 9, unless otherwise indicated)
INPUT CHARACTERISTICS
Item
Rated input voltage range
Max input voltage range
Input voltage frequency range
Maximum Input Current
Open load loss
Input PF value
Allowable bus capacitance range（*1）
Condition
Min.
100
85
45
Typ.
110/220
50/60
2.5
Max.
240
265
65
6.3
Unit
VAC
VAC
Hz
A
W
Vin=85VAC, 85% Load
Vin=220VAC, 100% Load
Vin=110/220VAC 100% Load
0.95
660
1000
uF
OUTPUT CHARACTERISTICS
Item
PG
Output voltage setpoint
Out put current range
Output OCP point
Turn-on rise time
Start up time
Hold up time
Output OVP point
Output trim range
Trim up
Trim down
Positive voltage step, 75% to 25% load
dynamic, 0.1A/us slew rate
Nagetive voltage step, 25% to 75% load
dynamic, 0.1A/us slew rate
400
400
Vin=110/220VAC
Vin=110/220VAC, Io= 100% Load
32
Conditions
Vo=28V
Vin=220VAC, Io=0-18A
Min.
3.1
27.5
0
19
22
20
2500
20
33.5
35
10
3.5
600
600
Typ.
3.2
28
Max.
3.3
28.5
18
25
Unit
V
Vdc
A
A
ms
mS
mS
V
%
%
mV
mV
Output Current Transient
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Output Voltage Ripple and Noise
Vin=110/220Vac, Io=18A, peak to peak,
20MHz bandwidth
RMS
150
50
3
mV
mV
%
%
%
%
%
5000
uF
Unit
VAC
VAC
VAC
MΩ
Mhours
g
Max.
+125
+100
3000
Unit
℃
℃
meter
Output overshoot
Efficiency @ 60% Load
Efficiency @ 60% Load
Efficiency @ 100% Load
Efficiency @ 100% Load
Allowable output capacitance range（*2）
Item
I/O Isolation Voltage
I/O Isolation Resistance
MTBF
Weight
Vin=110VAC
Vin=220VAC
Vin=110VAC
Vin=220VAC
Vin=110/220VAC, Io= 100% Load
Conditions
Input to output
Input to case
Output to case
500Vdc
Ta=25ºC, 100%load
10
1080
Min.
90
92
91.5
93
GENERAL CHARACTERISTICS
Typ.
3000
1500
500
1
240
Max.
ENVIRONMENTAL SPECIFICATIONS
Conditions
Case
Temperature
Min.
-40
-40
Parameter
Storage Temperature Range
Operating Temperature Range
Operating altitude
ELECTRICAL CURVE
Figure 1:
Efficiency vs. Output current @ Vin=110,220VAC
Figure 2:
Vout vs. Vin @ Full load
.
Figure 3:
Output voltage vs. Output current @
Vin=110/220VAC
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ELECTRICAL CURVES (continous)
Figure 4:
Dynamic response to load step 25%~75%
with 0.1A/uS slew rate at 110/220Vac
TOP: Vout, 200mV/div, BOTTOM:Iout,5A/div,200uS/div
Figure 5:
Vout start up with Enable on at 110Vac,18A Iout,
TOP: Vout, 10V/div, 500mS/div
BOTTOM: Vin, 200V/div, 500mS/div
Figure 6:
Output ripple & noise at 110/220Vac, 18A Iout
Vout: 100mV/div, 5mS/div
Figure 7:
Output over voltage protection at 110/220Vac,
18A Iout. Vout: 10V/div, 500mS/div
Figure 8:
Inrush current @ Vin=220Vac
Iin
：
10A/div, 5mS/div; Max current 25.3A
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SIMPLIFIED APPLICATION CIRCUIT
Figure 9: Application connection
TYPICAL value ADVISED
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Location
Cap0
Cap1
Cap2
Cap3
Cap4
Cap5
Cap6
Cap7
Cap8
F1
RV1
RV2
RV3
RV4
GT1
C1
item
bus cap
bus cap
bus cap
Cap for pri-sec
Output cap
Output cap
Output cap
Output cap
Output cap
Input Fuse
Input VDR
Input VDR
Input VDR
Input VDR
Input GAS
TUBE
Input Y-cap
value
220uF/450V
220uF/450V
220uF/450V
2200pF/250Vac Y1/X1
1000uF/35V
270uF/35V
270uF/35V
270uF/35V
270uF/35V
10A/250Vac
300VAC
300VAC
300VAC
300VAC
2.5KV/10KA
100pF/250Vac Y2/X1
Notes
Capacitor should have good
low-temperature characteristics, keep at
least 75% capacitance at -40℃
if need
-40C application.（*3）
ESR≤16mΩ(100kHz), Rated ripple≥
2920mArms(105℃)（*4）
ESR
≤
17m
Ω (100kHz),
Rated ripple
≥
2200mArms(125℃)
（*5）
TVR14471KOOOTB9Y/THINKING
TVR14471KOOOTB9Y/THINKING
TVR14471KOOOTB9Y/THINKING
TVR14471KOOOTB9Y/THINKING
B88069X8661S102(EF2500X8S)
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No
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Location
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
L1
L2
item
Input Y-cap
Input X-cap
Input X-cap
Input X-cap
Input Y-cap
Input Y-cap
Cap for pri-PE
output Y-cap
output Y-cap
output Y-cap
output Y-cap
Input Y-cap
Input Y-cap
Input chock
Input chock
value
4700pF/250Vac Y2/X1
1uF /305VAC X2
0.47uF /275VAC X2
0.47uF /275VAC X2
100pF/250Vac Y2/X1
4700pF/250Vac Y2/X1
1500pF/250Vac Y1/X1
4700pF/250Vac Y2/X1
4700pF/250Vac Y2/X1
4700pF/250Vac Y2/X1
4700pF/250Vac Y2/X1
100pF/250Vac Y2/X1
100pF/250Vac Y2/X1
6.5mH φ 1mm
6.5mH φ 1mm
Notes
PH9455.705NL/Pulse Electronics
*read the Application Note for this module carefully before using the power supply unit
=Note=
*1 and *3 . About the bus cap, pls read the Application Note about the hold up time configure.
*2 and *5. About the min output cap, pls use the cap which has more performance than the cap in the table
above, or refer the cap about the output cap ability in the Application Note.
*2 and *4. About the max output cap, pls follow the Application Note about the output cap ability.
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