PACSR12025
12V Output AC/DC Converter, Module Package
FEATURES
Full Load Efficiency up to 91.5% @220VAC
Metal Case Box Type Package
Package Dimension:
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: CISPR11 ClassB (with external EMC filter)
ISO 9001, ISO 14001 certified manufacturing facility
UL/cUL 60950-1 (US & Canada)
Surge immunity(with external EMC filter):
110.8x50.8x13.7mm (4.33”x2.00”x0.54”)
AC: ±1 kV
differential mode
AC: ±2 kV
common mode
The PACSR12025, 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 300W, 12V
regulated DC output voltage with full load efficiency up to 91.5% @220Vac; the PACSR12025 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 extremely harsh
operating conditions.
(All specifications valid base on the connection of figure 10, unless otherwise indicated)
INPUT CHARACTERISTICS
Item
Rated input voltage range
Max input voltage range
Condition
Input voltage frequency range
Min.
100
85
45
Maximum Input Current
Vin=85VAC, 100% Load
Input PF value
Vin=110VAC, 100% Load
0.95
Vin=110/220VAC 100% Load
440
Allowable bus capacitance range Note(1)
Typ.
110/220
50/60
Max.
240
265
65
Unit
VAC
VAC
Hz
4.5
A
1000
uF
Max.
3.4
Unit
V
0.8
V
OUTPUT CHARACTERISTICS
PG high
Item
Conditions
Good state
Min.
3.0
PG low
Fault state
0
PG delay time
Typ.
3.2
Vbus=0V,Vin >75V to PG signal >1V
2500
ms
PG source current
PG high
+0.3
mA
PG sink current
PG low
-0.3
mA
12.2
Vdc
25
A
Output voltage setpoint
Vin=220VAC, Io=0-25A
11.8
Output current range
0
Output OCP point
26
Turn-on rise time
12.0
30
ms
mS
Vin=110/220VAC
1500
Hold up time
Vin=110/220VAC, Io= 100% Load
20
Output Current Transient
DS_PACSR12025_07142020
13
Positive voltage step, 75% to 25% load
dynamic, 0.1A/us slew rate
Negative voltage step, 25% to 75% load
dynamic, 0.1A/us slew rate
A
15
Start up time
Output OVP point
34
mS
14
15
V
300
600
mV
300
600
mV
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Output Voltage Ripple and Noise
Vin=110/220Vac, Io=25, peak to peak,
20MHz bandwidth
RMS
100
200
mV
50
100
mV
3
%
Output overshoot
Efficiency @ 60% Load
Vin=110VAC
89
%
Efficiency @ 60% Load
Vin=220VAC
91
%
Efficiency @ 100% Load
Vin=110VAC
90
%
Efficiency @ 100% Load
Vin=220VAC
91.5
Allowable output capacitance range Note(2)
Vin=110/220VAC, Io= 100% Load
4000
Conditions
Min.
GENERAL CHARACTERISTICS
Item
I/O Isolation Voltage
I/O Isolation Resistance
MTBF
Max.
Unit
3000
VAC
Input to case
1500
VAC
Output to case
500
VAC
1.2
Mhours
225
g
10
Ta=25ºC, normal input,100%load
Weight
ENVIRONMENTAL SPECIFICATIONS
Conditions
Storage Temperature Range
Operating Temperature Range
Typ.
uF
Input to output
500Vdc
Parameter
%
10000
Plate Temperature
MΩ
Min.
Max.
Unit
-55
+125
℃
-40
+100
℃
3000
meter
Operating altitude
TCT cycle Note(3)
THB cycle Note(4)(5)
==Note==
(1) About the bus cap., please find details in section “SIMPLIFIED APPLICATION CIRCUIT”.
(2) About the min. and max. output cap., please find details in section “SIMPLIFIED APPLICATION CIRCUIT”.
(3) The testing conditions of TCT cycle are as follows:
1.1 Temperature Range: -40°C±3°C ~125°C±3°C
1.2 Dwell time: 30min
1.3 Ramp rate: 20°C/min.
1.4 Cycling: 200 cycles
1.5 Units shall be unpowered
(4) The THB test starts with a pre-conditioning soak of all units for 72hrs under the following conditions:
2.1 Unpowered
2.2 Ambient temperature: 85℃
2.3 Relative humidity: 85%
(5) The THB Testing is performed for 1000hrs under the following conditions:
3.1 Input Voltage: Maximum Voltage
3.2 Output Load: Minimum load
3.3 Ambient temperature: The max rated ambient temperature or 85℃, whichever is less.
3.4 Relative humidity: 85%
*Specifications are subject to change without notice
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ELECTRICAL CURVES
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 Figure 4: Dynamic response to load step 25%~75% with
0.1A/uS slew rate at 110/220Vac
TOP: Vout,500mV/div, BOTTOM:Iout,10A/div, 1mS/div
Figure 5: Vout start up with Enable on at 220Vac,25A Iout,
TOP:Vout, 5V/div, 200mS/div
BOTTOM: Vin, 500V/div, 200mS/div
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Figure 6: Output ripple & noise at 110/220Vac, 25A Iout
VOUT: 100mV/div, 5mS/div
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Figure 7: Output over voltage protection at
110/220Vac,25AIout
VOUT: 2V/div, 500mS/div
Figure 8: Inrush current @ Vin=220Vac Iin: 10A/div, 5mS/div
Figure 9: PG voltage vs. Vout @ Vin=220Vac,0AIout
TOP:Vout, 5V/div, 20mS/div BOTTOM: PG, 1V/div, 20mS/div
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SIMPLIFIED APPLICATION CIRCUIT
Note: PACSR series does not support parallel application
Figure 10: Application connection
TYPICAL value ADVISED
No
1
2
3
Cap0
Cap1
Cap2
Item
Bus cap
Bus cap
Bus cap
4
Cap3
Cap for pri-sec
2200pF/250Vac Y1/X1
Cap4
Cap5
Cap6
Cap7
Cap8
F1
RV1
RV2
RV3
RV4
RV5
Output cap
Output cap
Output cap
Output cap
Output cap
Input fuse
Input VDR
Input VDR
Input VDR
Input VDR
Input VDR
820uF/16V
820uF/16V
820uF/16V
820uF/16V
820uF/16V
10A/250Vac
300VAC
300VAC
300VAC
300VAC
300VAC
GT1
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
Input GAS TUBE
Input Y-cap
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
2.5KV/10KA
100pF/250Vac Y2/X1
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
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Location
DS_PACSR12025_07142020
Value
220uF/450V
220uF/450V
220uF/450V
Part Number
Capacitor should have good lowtemperature characteristics, keep
at least 75% capacitance at -40℃
if need -40C application. Note(6)
ESR≤8mΩ(100kHz), Rated ripple
≥7000mArms(125℃) Note(7)
TVR14471KOOOTB9Y/THINKING
TVR14471KOOOTB9Y/THINKING
TVR14471KOOOTB9Y/THINKING
TVR14471KOOOTB9Y/THINKING
TVR14471KOOOTB9Y/THINKING
B88069X8661S102(EF2500X8S)
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30
31
32
33
34
C14
L1
L2
R1
R2
Input Y-cap
Input chock
Input chock
Input RES
Input RES
100pF/250Vac Y2/X1
11mH φ1mm
11mH φ1mm
1/4W 820Kohm
1/4W 820Kohm
*read the Application Note for this module carefully before using the power supply unit
==Note==
(1) and (6): About the bus cap., please read the Application Note about the hold up time configure.
(2) and (7): About the min. output cap., please 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): About the max. output cap., please follow the Application Note about the output cap. ability.
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THERMAL CONSIDERATION
Thermal management is an important part of the system design. To ensure proper, reliable operation, sufficient
cooling of the power module is needed over the entire temperature range of the module. Conduction cooling is
usually the dominant mode of heat transfer.
Thermal Testing Setup
The following figure shows the testing setup in which the power module is mounted on an Al plate and was
cooled by cooling liquid.
Figure 11: Thermal test setup
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THERMAL DERATING CURVE
The following figure shows the location to monitor the temperature of the module’s baseplate. The baseplate
temperature in thermal curve is a reference for customer to make thermal evaluation and make sure the module
is operated under allowable temperature. (Thermal curves shown in Figure13 are based on different input
voltage).
Figure 12: Baseplate’s temperature measured point
Figure 13: Thermal derating curves
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MECHANICAL DRAWING
Mechanical Dimensions
Pin Connection
Pin
ns
Function
1
ACL
2
ACN
3
BUS+
4
BUS-
5
PG
6
SENSE-
7
VOUT-
8
VOUT+
9
SENSE+
10
NC
All dimensions in mm (inches)
Tolerance:X.X±0.5 (X.XX±0.02)
X.XX±0.25 ( X.XXX±0.010)
RECOMMENDED P.W.B PAD LAYOUT
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SOLDERING METHOD
Generally, as the most common mass soldering method for the solder attachment, wave soldering is used for
through-hole power modules and reflow soldering is used for surface-mount ones. Delta recommended soldering
methods and process parameters are provided in this document for solder attachment of power modules onto
system board. SAC305 is the suggested lead-free solder alloy for all soldering methods. The soldering
temperature profile presented in this document is based on SAC305 solder alloy.
Reflow soldering is not a suggested method for through-hole power modules due to many process and reliability
concerns. If you have this kind of application requirement, please contact Delta sales or FAE for further
confirmation.
Wave Soldering (Lead-free)
Delta’s power modules are designed to be compatible with single-wave or dual wave soldering. The suggested
soldering process must keep the power module’s internal temperature below the critical temperature of 217℃
continuously. The recommended wave-soldering profile is shown below:
Note: The temperature is measured on solder joint of pins of power module.
The typical recommended (for double-side circuit board) preheat temperature is 115+/-10℃ on the top side
(component side) of the circuit board. The circuit-board bottom-side preheat temperature is typically
recommended to be greater than 135℃ and preferably within 100℃ of the solder-wave temperature. A maximum
recommended preheat up rate is 3℃ /s. A maximum recommended solder pot temperature is 255+/-5℃ with
solder-wave dwell time of 3~6 seconds. The cooling down rate is typically recommended to be 6℃/s maximum.
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Hand Soldering (Lead Free)
Hand soldering is the least preferred method because the amount of solder applied, the time the soldering iron is
held on the joint, the temperature of the iron, and the temperature of the solder joint are variable. The
recommended hand soldering guideline is listed in Table below. The suggested soldering process must keep the
power module’s internal temperature below the critical temperature of 217℃ continuously.
PHYSICAL OUTLINE
Case Size
:
110.8x50.8x13.7mm (4.33”x2.00”x0.54”)
Case Material
:
AL6061+Plastic case
Weight
:
225g
PART NUMBERING SYSTEM
P
Form Factor
P - Module
AC
S
R
12
025
Rated Input
Voltage
AC 100VAC~240VAC
Number of
Outputs
Product Series
Output Voltage
Output
Current
S - Single
R - Regular
12V
25A
A
Option Code
A - Through hole
S - Screw
hole(M3*0.5)
MODEL LIST
Model name
PACSR12025A
PACSR12025S
Rated Input
100VAC~240VAC
100VAC~240VAC
Output
3.8A
3.8A
12V
12V
25A
25A
EFF @220VAC 100%
LOAD
91.5%
91.5%
WARRANTY
Delta offers a two (2) years limited warranty. Complete warranty information is listed on our web site or is available upon request from Delta.
Information furnished by Delta is believed to be accurate and reliable. However, no responsibility is assumed by Delta for its use, nor for any
infringements of patents or other rights of third parties, which may result from its use. No license is granted by implication or otherwise under
any patent or patent rights of Delta. Delta reserves the right to revise these specifications at any time, without notice.
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