Delta Electronics Power Supply IPM24S0B0 User Manual

FEATURES  
High efficiency: 91% @ 12Vin, 6.5V/3A  
88% @ 24Vin, 6.5V/3A  
Small size and low profile:  
17.8x15.0x7.8mm (0.70”x0.59”x0.31”)  
Output voltage adjustment: 3.3V~6.5V  
Monotonic startup into normal and  
pre-biased loads  
Input UVLO, output OCP  
Remote ON/OFF  
Output short circuit protection  
Fixed frequency operation  
Copper pad to provide excellent thermal  
performance  
ISO 9001, TL 9000, ISO 14001, QS9000,  
OHSAS18001 certified manufacturing  
facility  
UL/cUL 60950 (US & Canada) Recognized,  
and TUV (EN60950) Certified  
CE mark meets 73/23/EEC and  
93/68/EEC directives  
Delphi Series IPM24S0B0, Non-Isolated,  
Integrated Point-of-Load Power Modules:  
11V~36V input, 3.3~6.5V and 3A Output  
OPTIONS  
SMD or SIP package  
The Delphi Series IPM24S0B0 non-isolated, fully integrated  
Point-of-Load (POL) power modules, are the latest offerings from a  
world leader in power systems technology and manufacturing --  
Delta Electronics, Inc. This product family provides up to 3A of  
output current or 20W of output power in an industry standard,  
compact, IC-like, molded package. It is highly integrated and does  
not require external components to provide the point-of-load  
function. A copper pad on the back of the module; in close contact  
with the internal heat dissipation components; provides excellent  
thermal performance. The assembly process of the modules is fully  
automated with no manual assembly involved. These converters  
possess outstanding electrical and thermal performance, as well as  
extremely high reliability under highly stressful operating conditions.  
IPM24S0B0 operates from an 11V~36V source and provides a  
programmable output voltage from 3.3V to 6.5V. The IPM product  
family is available in both a SMD or SIP package. IPM24S family is  
also available for output 1.2V~2.5V. Please refer to IPM240A0  
datasheet for details.  
APPLICATIONS  
Telecom/DataCom  
Wireless Networks  
Optical Network Equipment  
Server and Data Storage  
Industrial/Test Equipment  
DATASHEET  
IPM24S0B0S/R03_03202007  
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ELECTRICAL CHARACTERISTICS CURVES  
90.0  
86.0  
82.0  
78.0  
74.0  
70.0  
66.0  
62.0  
58.0  
54.0  
89.0  
84.0  
79.0  
74.0  
Vin=11V  
Vin=12V  
Vin=24V  
Vin=36V  
Vin=11V  
Vin=12V  
Vin=24V  
Vin=36V  
69.0  
64.0  
59.0  
54.0  
0.0 0.5 1.0 1.5 2.0 2.5 3.0  
Iout (A)  
0.0 0.5 1.0 1.5 2.0 2.5 3.0  
Iout (A)  
Figure 1: Converter efficiency vs. output current  
Figure 2: Converter efficiency vs. output current  
(3.30V output voltage)  
(4.0V output voltage)  
95.0  
91.0  
87.0  
83.0  
79.0  
75.0  
71.0  
67.0  
63.0  
92.0  
88.0  
84.0  
80.0  
76.0  
72.0  
68.0  
64.0  
60.0  
Vin=11V  
Vin=11V  
Vin=12V  
Vin=24V  
Vin=36V  
Vin=12V  
Vin=24V  
Vin=36V  
0.0 0.5 1.0 1.5 2.0 2.5 3.0  
Iout (A)  
0.0 0.5 1.0 1.5 2.0 2.5 3.0  
Iout (A)  
Figure 3: Converter efficiency vs. output current  
Figure 4: Converter efficiency vs. output current  
(5.0V output voltage)  
(6.5V output voltage)  
Figure 5: Output ripple & noise at 12Vin, 3.3V/3A out  
Figure 6: Output ripple & noise at 24Vin, 3.3V/3A out  
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ELECTRICAL CHARACTERISTICS CURVES  
Figure 7: Output ripple & noise at 12Vin, 4.0V/3A out  
Figure 8: Output ripple & noise at 24Vin, 4.0V/3A out  
Figure 9: Output ripple & noise at 12Vin, 5.0V/3A out  
Figure 10: Output ripple & noise at 24Vin, 5.0V/3A out  
Figure 11: Output ripple & noise at 12Vin, 6.5V/3A out  
Figure 12: Output ripple & noise at 24Vin, 6.5V/3A out  
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ELECTRICAL CHARACTERISTICS CURVES  
Figure 13: Power on waveform at 12vin, 3.3V/3A out with  
Figure 14: Power on waveform at 12vin, 6.5V/3A out with  
application of Vin  
application of Vin  
Figure 15: Power off waveform at 12vin, 3.3V/3A out with  
Figure 16: Power off waveform 12vin,6.5V/3A out with  
application of Vin  
application of Vin  
Figure 17: Remote turn on delay time at 24vin, 6.5V/3A out  
Figure 18: Remote turn on delay time at 24vin, 6.5V/3A out  
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ELECTRICAL CHARACTERISTICS CURVES  
Figure 19: Turn on delay at 24vin, 3.3V/3A out with  
Figure 20: Turn on delay at 24vin, 6.5V/3A out with  
application of Vin  
application of Vin  
Figure 21: Typical transient response to step load change at  
0.5A/µS from 100% to 50% of Io, max at 12Vin,  
6.5V out (measurement with a 1uF ceramic  
Figure 22: Typical transient response to step load change at  
0.5A/µS from 50% to 100% of Io, max at 24Vin,  
6.5V out (measurement with a 1uF ceramic)  
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TEST CONFIGURATIONS  
DESIGN CONSIDERATIONS  
TO OSCILLOSCOPE  
Input Source Impedance  
L
To maintain low-noise and ripple at the input voltage, it is  
critical to use low ESR capacitors at the input to the  
module. Figure 26 shows the input ripple voltage  
(mVp-p) for various output models using 2x100uF low  
ESR electrolytic capacitors (Rubycon P/N:50YXG100,  
100uF/50V or equivalent) and 1x3.3.0 uF very low ESR  
ceramic capacitors (TDK P/N: C4532JB1H335M,  
3.3uF/50V or equivalent).  
V
I(+)  
3.3uF  
Ceramic  
100uF  
Electrolytic  
2
BATTERY  
VI(-)  
Note: Input reflected-ripple current is measured with a  
simulated source inductance. Current is  
measured at the input of the module.  
The input capacitance should be able to handle an AC  
ripple current of at least:  
Figure 23: Input reflected-ripple current test setup  
Vout  
Vin  
Vout  
Vin  
Irms = Iout  
1 −  
Arms  
COPPER STRIP  
Vo  
Resistive  
Load  
220uF 1uF  
PosCap ceramic  
SCOPE  
GND  
Note: Use a 220µF PosCap and 1µF capacitor. Scope  
measurement should be made using a BNC  
connector.  
Figure 24: Peak-peak output noise and startup transient  
Figure 26: Input ripple voltage for various output models,  
Io = 3A (Cin =2x100uF electrolytic capacitors  
1x3.3uF ceramic capacitors at the input)  
measurement test setup  
CONTACT AND  
DISTRIBUTION LOSSES  
V
I
Vo  
The power module should be connected to a low  
ac-impedance input source. Highly inductive source  
impedances can affect the stability of the module. An  
input capacitance must be placed close to the modules  
input pins to filter ripple current and ensure module  
stability in the presence of inductive traces that supply  
the input voltage to the module.  
II  
Io  
LOAD  
SUPPLY  
GND  
CONTACT RESISTANCE  
Figure 25: Output voltage and efficiency measurement test  
setup  
Note: All measurements are taken at the module  
terminals. When the module is not soldered (via  
socket), place Kelvin connections at module  
terminals to avoid measurement errors due to  
contact resistance.  
Vo× Io  
η = (  
)×100 %  
DS_IPM24S0B0_03202007  
Vi × Ii  
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DESIGN CONSIDERATIONS  
FEATURES DESCRIPTIONS  
Remote On/Off  
Over-Current Protection  
The IPM series power modules have an On/Off control  
pin for output voltage remote On/Off operation. The  
On/Off pin is an open collector/drain logic input signal  
that is referenced to ground. When On/Off control pin is  
not used, leave the pin unconnected.  
To provide protection in an output over load fault  
condition, the unit is equipped with internal over-current  
protection. When the over-current protection is  
triggered, the unit enters hiccup mode. The units  
operate normally once the fault condition is removed.  
The remote on/off pin is internally connected to +5Vdc  
through an internal pull-up resistor. Figure 27 shows the  
circuit configuration for applying the remote on/off pin.  
The module will execute a soft start ON when the  
transistor Q1 is in the off state.  
Output Voltage Programming  
The output voltage shall be externally adjustable by use  
of a Trim pin. The module output shall be adjusted by  
either a voltage source referenced to ground or an  
external resistor be connected between trim pin and Vo or  
ground. To trim-down using an external resistor, connect  
a resistor between the Trim and Vo pin of the module. To  
trim-up using an external resistor, connect a resistor  
between the Trim and ground pin of the module. The  
value of resistor is defined below. The module outputs  
shall not be adversely affected (regulation and operation)  
when the Trim pin is left open.  
The typical rise for this remote on/off pin at the output  
voltage of 2.5V and 5.0V are shown in Figure 17 and 18.  
Vo  
Vin  
IPM  
On/Off  
Trim up  
RL  
(Vout-0.7)*1.43  
Rtrim =  
(KΩ)  
(KΩ)  
Q1  
Vadj-Vout  
GND  
Trim Down  
Rtrim =  
(Vadj-0.7)*5.36  
Vout-Vadj  
Figure 27: Remote on/off implementation  
Rtrim is the external resistor in K  
Vout is the desired output voltage  
IPM can also be programmed by applying a voltage  
between the TRIM and GND pins (Figure 30). The  
following equation can be used to determine the value of  
Vtrim needed for a desired output voltage Vo:  
DS_IPM24S0B0_03202007  
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Table 1 Rtrim is the external resistor in K;  
FEATURES DESCRIPTIONS (CON.)  
Vout is the desired output voltage  
Output  
Rtrim setting ()  
Measurement  
R.trim_Up R.trim_Down  
0A  
NC  
3.323V  
4.023V  
5.019V  
6.493V  
2.984V  
Vo  
3.3  
4.0  
5.0  
6.5  
NC  
NC  
5.36K  
2.21K  
1.18K  
NC  
Vadj  
Vadj  
Vadj  
NC  
NC  
Figure 28: Trim up Circuit configuration for programming  
Vadj 3.3*(1-10%)  
36.5K  
output voltage using an external resistor  
The amount of power delivered by the module is the  
voltage at the output terminals multiplied by the output  
current. When using the trim feature, the output voltage  
of the module can be increased, which at the same  
output current would increase the power output of the  
module. Care should be taken to ensure that the  
maximum output power of the module must not exceed  
the maximum rated power (Vo.set x Io.max P max).  
Vout  
Rtrim  
Load  
Trim  
GND  
Voltage Margining  
Figure 29: Trim down Circuit configuration for programming  
output voltage using an external resistor  
Output voltage margining can be implemented in the IPM  
modules by connecting a resistor, Rmargin-up, from the Trim  
pin to the ground pin for margining-up the output voltage  
and by connecting a resistor, Rmargin-down, from the Trim pin  
to the output pin for margining-down. Figure 32 shows  
the circuit configuration for output voltage margining. If  
unused, leave the trim pin unconnected.  
Vo  
Vin  
Rmargin-down  
Q1  
IPM  
Figure 30: Circuit configuration for programming output voltage  
Trim  
On/Off  
using external voltage source  
Rmargin-up  
Q2  
Rtrim  
Table 1 provides Rtrim values required for some common  
output voltages. By using a 0.5% tolerance resistor, set  
point tolerance of ±2% can be achieved as specified in the  
electrical specification.  
GND  
Figure 32: Circuit configuration for output voltage margining  
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THERMAL CONSIDERATIONS  
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. Convection cooling is  
usually the dominant mode of heat transfer.  
Hence, the choice of equipment to characterize the  
thermal performance of the power module is a wind  
tunnel.  
Thermal Testing Setup  
Delta’s DC/DC power modules are characterized in  
heated vertical wind tunnels that simulate the thermal  
environments encountered in most electronics  
equipment. This type of equipment commonly uses  
vertically mounted circuit cards in cabinet racks in which  
the power modules are mounted.  
The following figure shows the wind tunnel  
characterization setup. The power module is mounted  
on a test PWB and is vertically positioned within the  
wind tunnel. The height of this fan duct is constantly kept  
at 25.4mm (1’’).  
Thermal Derating  
Heat can be removed by increasing airflow over the  
module. To enhance system reliability, the power  
module should always be operated below the maximum  
operating temperature. If the temperature exceeds the  
maximum module temperature, reliability of the unit may  
be affected.  
PWB  
FACING PWB  
MODULE  
AIR VELOCITY  
AND AMBIENT  
TEMPERATURE  
MEASURED BELOW  
THE MODULE  
50.8 (2.0”)  
AIR FLOW  
12.7 (0.5”)  
25.4 (1.0”)  
Figure 31: Wind tunnel test setup figure dimensions are in  
millimeters and (inches)  
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THERMAL CURVES  
IPM24S (Standard) Output Current vs. Ambient Temperature and Air Velocity  
@ Vin=24V, Vout =4V (Either Orientation)  
Output Current(A)  
3
2
1
0
Natural  
Convection  
60  
65  
70  
75  
80  
85  
Ambient Temperature ()  
Figure 35: Output current vs. ambient temperature and air velocity  
Figure 32: Temperature measurement location  
Vin=24V, Vout=4V(Either Orientation)  
* The allowed maximum hot spot temperature is defined at 125.  
IPM24S (Standard) Output Current vs. Ambient Temperature and Air Velocity  
IPM24S (Standard) Output Current vs. Ambient Temperature and Air Velocity  
@ Vin=24V, Vout =3.3V (Either Orientation)  
@ Vin=24V, Vout = 6.5V (Either Orientation)  
Output Current(A)  
Output Current(A)  
3
2
1
0
3
2
1
0
Natural  
Convection  
Natural  
Convection  
100LFM  
200LFM  
60  
65  
70  
75  
80  
85  
60  
65  
70  
75  
80  
85  
Ambient Temperature ()  
Ambient Temperature ()  
Figure 36: Output current vs. ambient temperature and air velocity  
Figure 33: Output current vs. ambient temperature and air velocity  
@Vin=24V, Vout=3.3V(Either Orientation)  
@Vin=24V, Vout=6.5V(Either Orientation)  
IPM24S (Standard) Output Current vs. Ambient Temperature and Air Velocity  
@ Vin=24V, Vout =5V (Either Orientation)  
Output Current(A)  
3
2
1
0
Natural  
Convection  
100LFM  
60  
65  
70  
75  
80  
85  
Ambient Temperature ()  
Figure 34: Output current vs. ambient temperature and air velocity  
@Vin=24V, Vout=5V(Either Orientation)  
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PICK AND PLACE LOCATION  
SURFACE- MOUNT TAPE & REEL  
All dimensions are in millimeters (inches)  
All dimensions are in millimeters (inches)  
LEAD FREE PROCESS RECOMMEND TEMP. PROFILE  
TTemp.  
2
0
~
440sec.  
P
e
a
k
T
e
m
p
.
2
4
0
~
2
4
5
0C  
C
2217 C  
70  
R
a
x
m
.
p
d
o
w
nn  
m
a
66.0 C/sec  
00  
2200 C  
00  
1150 C  
00  
P
r
e
~
h
e
a
8
t
0
t
i
m
ee  
T
A
i
b
m
o
e
v
6
e
0
~
1
5
0
ssec.  
6
0
ssec.  
2217 C  
70  
R
a
m
p
uup  
m
a
x
.
33.0 C/sec  
00  
225 C  
50  
TTime  
Note: All temperature refers to topside of the package, measured on the package body surface.  
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Mechanical Drawing  
SMD PACKAGE  
SIP PACKAGE  
1
2
3
4
5
RECOMMEND PWB PAD LAYOUT  
RECOMMEND PWB HOLE LAYOUT  
Note: The copper pad is recommended to connect to the ground.  
7
6
1
2
3
4
5
1
2
3
4
5
Note: All dimension are in millimeters (inches) standard dimension tolerance is± 0.10(0.004”)  
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PART NUMBERING SYSTEM  
IPM  
24  
S
0B0  
S
03  
F
A
Product  
Family  
Number of  
Outputs  
Output  
Current  
Input Voltage  
Output Voltage  
Package  
Option Code  
F- RoHS 6/6  
(Lead Free)  
Integrated POL  
Module  
11V ~ 36V  
S - Single  
0B0 - programmable  
output  
R - SIP  
03 - 3A  
A - Standard  
Function  
S - SMD  
3.3V~6.5V  
MODEL LIST  
Model Name  
Input Voltage  
Output Voltage  
Output Current  
Efficiency (Full load@12Vin)  
IPM24S0A0S/R03FA  
8V ~ 36V  
1.2V ~ 2.5V  
3A  
85%  
IPM24S0B0S/R03FA  
11V ~ 36V  
3.3V ~ 6.5V  
3A  
91%  
Model Name  
Input Voltage  
Output Voltage  
Output Current  
Efficiency (Full load@20Vin)  
IPM24S0C0S/R03FA  
20V ~ 36V  
8.0V~15.0V  
3A  
95%  
USA:  
Europe:  
Asia & the rest of world:  
Telephone:  
Telephone: +41 31 998 53 11  
Fax: +41 31 998 53 53  
Telephone: +886 3 4526107 x6220  
Fax: +886 3 4513485  
East Coast: (888) 335 8201  
West Coast: (888) 335 8208  
Fax: (978) 656 3964  
WARRANTY  
Delta offers a two (2) year 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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