Data Sheet
March 2009
CC025 Dual-Output-Series Power Modules:
18 Vdc to 36 Vdc Input; 25 W
The CC025 Dual-Output-Series Power Modules use advanced,
surface-mount technology and deliver high-quality, compact,
dc-dc conversion at an economical price.
Options
nIsolated case pin
nHigher accuracy output voltage clamp set point
nShort pins: 2.79 mm ± 0.25 mm
(0.110 in. ± 0.010 in.)
nHeat sink available for extended operation
nNegative logic remote on/off
Features
nSmall size: 71.1 mm x 61.0 mm x 12.7 mm
(2.80 in. x 2.40 in. x 0.50 in.)
nEfficiency greater than 80%
nWide operating temperature range
nLow output noise
nIndustry-standard pinout
nMetal case
n2:1 input voltage range
nRemote on/off (positive logic)
nUL* Recognized, CSA† Certified, and VDE
Licensed
nWithin FCC and CISPR Class A radiated limits
nTwo tightly regulated outputs
Applications
nDistributed power architectures
nTelecommunications
Description
The CC025 Dual-Output-Series Power Modules are dc-dc converters that operate over an input voltage range
of 18 Vdc to 36 Vdc and provide two regulated outputs. These modules offer low noise levels with industry-
standard pinouts in a small footprint. Each highly reliable and efficient unit features remote on/off and current
limit.
Each output is individually regulated by its own control circuit and has an independent overvoltage clamp. With
standard outputs of ±5 V, ±12 V, and ±15 V, the CC025 Dual-Output-Series is flexible enough to provide modi-
fied standard units with any combination of output voltages from 2 V to 15 V.
*UL is a registered trademark of Underwriters Laboratories, Inc.
†CSA is a registered trademark of Canadian Standards Association.
2Lineage Power
Data Sheet
March 2009
18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Parameter Symbol Min Max Unit
Input Voltage (continuous) VI—50 Vdc
I/O Isolation Voltage:
dc
Transient (1 minute)
—
—
—
—
500
850
V
V
Operating Case Temperature TC– 40 100 °C
Storage Temperature Tstg – 55 125 °C
Electrical Specifications
Unless otherwise indicated, specifications apply to all modules over all operating input voltage, resistive load, and
temperature conditions.
Table 1. Input Specifications
Parameter Symbol Min Typ Max Unit
Operating Input Voltage VI18 28 36 Vdc
Maximum Input Current
(VI = 0 V to 36 V; IO = IO, max; see Figure 1.)
II, max — — 3.0 A
Inrush Transient i2t — — 0.8 A2s
Input Reflected-ripple Current, Peak-to-peak
(5 Hz to 20 MHz, 12 µH source impedance;
TC = 25 °C; see Figure 11 and Design
Considerations section.)
— — 25 —mAp-p
Input Ripple Rejection (120 Hz) — — 60 —dB
Fusing Considerations
CAUTION: This power module is not internally fused. An input line fuse must always be used.
This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone
operation to an integrated part of a sophisticated power architecture. To preserve maximum flexibility, internal fus-
ing is not included; however, to achieve maximum safety and system protection, always use an input line fuse. The
safety agencies require a normal-blow, dc fuse with a maximum rating of 5 A (see Safety Considerations section).
Based on the information provided in this data sheet on inrush energy and maximum dc input current, the same
type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s data for further information.
Lineage Power 3
Data Sheet
March 200918 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Electrical Specifications (continued)
Table 2. Output Specifications
Parameter Device Symbol Min Typ Max Unit
Output Voltage Set Point
(VI = 28 V; IO = IO, max; TC = 25 °C)
CC025AJ-M
CC025BK-M
CC025CL-M
VO1, set
VO2, set
VO1, set
VO2, set
VO1, set
VO2, set
4.90
–4.90
11.76
–11.76
14.70
–14.70
5.0
–5.0
12.0
–12.0
15.0
–15.0
5.10
–5.10
12.24
–12.24
15.30
–15.30
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Voltage
(Over all operating input voltage,
resistive load, and temperature
conditions until end of life. See
Figure 13.)
CC025AJ-M
CC025BK-M
CC025CL-M
VO1
VO2
VO1
VO2
VO1
VO2
4.80
–4.80
11.40
–11.40
14.25
–14.25
—
—
—
—
—
—
5.25
–5.25
12.60
–12.60
15.75
–15.75
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Output Regulation:
Line (VI = 18 V to 36 V)
Load (IO1 = IO, min to IO, max, IO2 = IO, max)
Load (IO2 = IO, min to IO, max, IO1 = IO, max)
Temperature (TC = – 40 °C to +100 °C)
All
All
All
CC025AJ-M
CC025BK-M
CC025CL-M
—
—
—
—
—
—
—
—
—
—
—
—
0.1
0.1
0.1
15
40
40
0.2
0.4
0.4
70
150
190
%
%
%
mV
mV
mV
Output Ripple and Noise
(See Figure 12.):
RMS
Peak-to-peak (5 Hz to 20 MHz)
CC025AJ-M
CC025BK-M
CC025CL-M
CC025AJ-M
CC025BK-M
CC025CL-M
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
15
20
25
150
200
250
mVrms
mVrms
mVrms
mVp-p
mVp-p
mVp-p
Output Current
(At IO < IO, min, the modules may exceed
output ripple specifications.)
CC025AJ-M
CC025BK-M
CC025CL-M
IO1
IO2
IO1
IO2
IO1
IO2
0.20
0.20
0.10
0.10
0.08
0.08
—
—
—
—
—
—
2.50
2.50
1.04
1.04
0.83
0.83
A
A
A
A
A
A
Output Current-limit Inception
(VO = 90% of VO, nom; see Figure 2.)
CC025AJ-M
CC025BK-M
CC025CL-M
—
—
—
—
—
—
3.7
1.5
1.3
6.5
2.9
2.7
A
A
A
Output Short-circuit Current
(VO = 250 mV)
CC025AJ-M
CC025BK-M
CC025CL-M
—
—
—
—
—
—
3.5
1.0
1.0
7.0
3.0
3.0
A
A
A
Efficiency
(VI = 48 V; IO = IO, max; TC = 25 °C;
see Figures 3 and 13.)
CC025AJ-M
CC025BK-M
CC025CL-M
η
η
η
75
79
79
78
82
82
—
—
—
%
%
%
44 Lineage Power
Data Sheet
March 2009
18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
General Specifications
Parameter Min Typ Max Unit
Calculated MTBF (IO = 80% of IO, max; TC = 40 °C) 2,800,000 hours
Weight — — 113 (4.0) g (oz.)
Dynamic Response
(ýIO/ýt = 1 A/10 µs, VI = 28 V,
TC = 25 °C):
Load Change from IO = 50% to 75% of
IO, max (See Figures 7 to 9.):
Peak Deviation
Settling Time (VO < 10% peak
deviation)
Load Change from IO = 50% to 25% of
IO, max (See Figures 4 to 6.):
Peak Deviation
Settling Time (VO < 10% peak
deviation)
CC025AJ-M
CC025BK-M
CC025CL-M
All
CC025AJ-M
CC025BK-M
CC025CL-M
All
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
160
250
250
3
160
250
250
0.5
—
—
—
—
—
—
—
—
mV
mV
mV
ms
mV
mV
mV
ms
Table 3. Isolation Specifications
Parameter Min Typ Max Unit
Isolation Capacitance —1200 —pF
Isolation Resistance 10 — — M¾
Table 2. Output Specifications (continued)
Parameter Device Symbol Min Typ Max Unit
Electrical Specifications (continued)
Lineage Power 5
Data Sheet
March 2009 18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Feature Specifications
Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature
conditions. See Feature Descriptions and Design Considerations for further information.
Parameter Device Symbol Min Typ Max Unit
Remote On/Off
(VI = 0 V to 36 V; open collector or equivalent
compatible; signal referenced to VI(–) terminal.
See Figures 10, 14, and Feature
Descriptions.):
CC025xx-M Positive Logic:
Logic Low—Module Off
Logic High—Module On
CC025xx1-M Negative Logic:
Logic Low—Module On
Logic High—Module Off
Module Specifications:
On/Off Current—Logic Low
On/Off Voltage:
Logic Low
Logic High (Ion/off = 0)
Open Collector Switch Specifications:
Leakage Current During Logic High
(Von/off = 10 V)
Output Low Voltage During Logic Low
(Ion/off = 1 mA)
Turn-on Time (IO = 80% of IO, max; VO within
±1% of steady state)
Output Voltage Overshoot
All
All
All
All
All
All
All
Ion/off
Von/off
Von/off
Ion/off
Von/off
—
—
—
0
—
—
—
—
—
—
—
—
—
—
30
0
1.0
1.2
10
50
1.2
—
5
mA
V
V
µA
V
ms
%
Output Overvoltage Clamp CC025AJ-M
CC025BK-M
CC025CL-M
VO1
VO2
VO1
VO2
VO1
VO2
—
—
—
—
—
—
—
—
—
—
—
—
7
–7
16
–16
20
–20
V
V
V
V
V
V
Input Undervoltage Lockout:
Module On
Module Off
All
All
VUVLO
VUVLO
—
—
16
15.5
18
—
V
V
66 Lineage Power
Data Sheet
March 2009
18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Characteristic Curves
8-992(C)
Figure 1. CC025 Dual-Output-Series Input Current
and Normalized Output Voltage vs. Input
Voltage at Full Load and TC = 25 °C
0.0 0.4 0.8 1.2 1.6 2.0 2.2
0.0
0.7
0.8
0.9
1.0
1.1
2.6
0.1
0.6
0.5
0.4
0.3
0.2
0.2 0.6 1.0 1.4 1.8 2.4
CC025AJ
CC025BK
CC025CL
OUTPUT CURRENT NORMALIZED TO FULL LOAD, I
O
(A)
8-990(C).a
Figure 2. CC025 Dual-Output-Series Normalized
Output Current vs. Normalized Output
Voltage at VI = 28 V and TC = 25 °C
0.1 0.2 0.3 0.4 0.5 0.6 1.0
50
60
65
70
75
80
85
55
0.7 0.8 0.9
CC025CL
CC025BK
CC025AJ
NORMALIZED OUTPUT CURRENT, I
O1
= I
O2
(A)
8-991(C).a
Figure 3. CC025 Dual-Output-Series Efficiency vs.
Normalized Output Currents at VI = 28 V
and TC = 25 °C
0.5 A 0.5 ms
50 mV
1.0 A
0.5 A
TIME, t (0.5 ms/div)
5.0 V
•I
O
•t = 1 A/10 µs
8-1019(C)
Figure 4. CC025 Dual-Output-Series Typical 5 V
Output Voltage Response to a Step Load
Change from 50% to 25% of IO, max at
VI = VI, nom and TC = 25 °C
Lineage Power 7
Data Sheet
March 2009 18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Characteristic Curves (continued)
TIME, t (0.5 ms/div)
•I
O
•t = 1 A/10 µs
0.416 A
0.208 A
12.0 V
0.2 A 0.5 ms
100 mV
8-1017(C)
Figure 5. CC025 Dual-Output-Series Typical 12 V
Output Voltage Response to a Step Load
Change from 50% to 25% of IO, max at
VI = VI, nom and TC = 25 °C
TIME, t (0.5 ms/div)
•I
O
•t = 1 A/10 µs
0.333 A
0.166 A
15.0 V
0.2 A 0.5 ms
100 mV
8-1017(C).a
Figure 6. CC025 Dual-Output-Series Typical 15 V
Output Voltage Response to a Step Load
Change from 50% to 25% of IO, max at
VI = VI, nom and TC = 25 °C
•I
O
•t = 1 A/10 µs
0.5 ms
50 mV
0.5 A
1.5 A
1.0 A
TIME, t (0.5 ms/div)
5.0 V
8-1018(C)
Figure 7. CC025 Dual-Output-Series Typical 5 V
Output Voltage Response to a Step Load
Change from 50% to 75% of IO, max at
VI = VI, nom and TC = 25 °C
•I
O
•t = 1 A/10 µs
0.5 ms
100 mV
0.2 A
0.624 A
0.416 A
12.0 V
TIME, t (0.5 ms/div)
8-1017(C).b
Figure 8. CC025 Dual-Output-Series Typical 12 V
Output Voltage Response to a Step Load
Change from 50% to 75% of IO, max at
VI = VI, nom and TC = 25 °C
88 Lineage Power
Data Sheet
March 2009
18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Characteristic Curves (continued)
•I
O
•t = 1 A/10 µs
0.500 A
0.333 A
TIME, t (0.5 ms/div)
0.2 A
100 mV
0.5 ms
15.0 V
8-526(C)
Figure 9. CC025 Dual-Output-Series Typical 15 V
Output Voltage Response to a Step Load
Change from 50% to 75% of IO, max at
VI = VI, nom and TC = 25 °C
•I
O
•t = 1 A/10 µs
2 V
0 V
TIME, t (1 ms/div)
0 V
1 ms
V
O
,
set
8-1020(C)
Figure 10. CC025 Dual-Output-Series Typical
Output Voltage Rise Time with Remote
On/Off at VI = VI, nom, IO = 0.8 (IO, max), and
TC = 25 °C
Test Configurations
TO OSCILLOSCOPE
12 µ H
C
S
220 µ F
IMPEDANC E < 0.1 •
@ 20 °C , 100 kH z
V
I
(+)
V
I
(–)
BATTER Y
CURRENT
PROBE
L
TEST
8-489(C)
Note: Measure input reflected-ripple current with a simulated source
impedance (LTEST) of 12 µH. Capacitor CS offsets possible
battery impedance. Current is measured at the input of the
module.
Figure 11. Input Reflected-Ripple Test Setup
V
O1
(+)
V
O2
(–)
SCOPE
0.1 µF
COPPER STRIP
0.1 µF SCOPE
COMM
R
LOAD1
R
LOAD2
8-808(C)
Note: Use a 0.1 µF ceramic capacitor. Scope measurement should
be made by using a BNC socket. Position the load between
50 mm and 75 mm (2 in. and 3 in.) from the module.
Figure 12. Output Noise Measurement Test Setup
Lineage Power 9
Data Sheet
March 2009 18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Test Configurations (continued)
V
I
(+)
I
I
I
O
SUPPLY
CONTACT
RESISTANCE
CONTACT AND
DISTRIBUTION LOSSES
LOAD
V
I
(–)
V
O1
V
O2
COM
LOAD
8-863(C).a
Note: All measurements are taken at the module terminals. When
socketing, place Kelvin connections at module terminals to
avoid measurement errors due to socket contact resistance.
In addition, VI(–) is internally connected to the case.
η
VOJ COM–[]IOJ
J1=
2
∑
VI+() VI–()–[]II
---------------------------------------------------------- x 1 0 0=
Figure 13. Output Voltage and Efficiency Measure-
ment Test Setup
Design Considerations
Input Source Impedance
The power module should be connected to a low ac-
impedance input source. Highly inductive source
impedances can affect the stability of the power mod-
ule. A 33 µF electrolytic capacitor (ESR < 0.7 ¾ at
100 kHz) mounted close to the power module helps
ensure stability of the unit.
Note: VI(–) is internally connected to the case for a
standard module.
Safety Considerations
For safety-agency approval of the system in which the
power module is used, the power module must be
installed in compliance with the spacing and separation
requirements of the end-use safety agency standard,
i.e., UL-1950, CSA 22.2-950, EN60950.
For the converter output to be considered meeting the
requirements of safety extra-low voltage (SELV), the
input must meet SELV requirements.
The power module has extra-low voltage (ELV) outputs
when all inputs are ELV.
The input to these units is to be provided with a maxi-
mum 5 A normal blow fuse in the ungrounded lead.
Input/Output Voltage Reversal
CAUTION: Applying a reverse voltage across the
module output forward biases an inter-
nal diode. Attempting to start the mod-
ule under this condition can damage
the module.
1010 Lineage Power
Data Sheet
March 2009
18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Feature Descriptions
Remote On/Off
Two remote on/off options are available. Positive logic
remote on/off turns the module on during a logic high
voltage on the remote ON/OFF pin, and off during a
logic low. Negative logic remote on/off, code suffix “1,”
turns the module off during a logic high and on during a
logic low.
To turn the power module on and off, the user must
supply a switch to control the voltage between the
on/off terminal and the VI(–) terminal (Von/off). The
switch can be an open collector or equivalent (see
Figure 14). A logic low is Von/off = 0 V to 1.2 V. The max-
imum Ion/off during a logic low is 1 mA. The switch
should maintain a logic low voltage while sinking 1 mA.
During a logic high, the maximum Von/off generated by
the power module is 10 V. The maximum allowable
leakage current of the switch at Von/off = 10 V is 50 µA.
COM
LOAD
+
I
on/off
–
V
on/off
ON/OFF
V
I
(+)
V
I
(–)
V
O2
LOAD
V
O1
8-754(C)
Figure 14. Remote On/Off Implementation
Output Overvoltage Clamp
The output overvoltage clamp consists of control cir-
cuitry, independent of the primary regulation loop, that
monitors the voltage on the output terminals. The con-
trol loop of the clamp has a higher voltage set point
than the primary loop (see Feature Specifications
table). This provides a redundant voltage control that
reduces the risk of output overvoltage.
Current Limit
To provide protection in a fault (output overload)
condition, the unit is equipped with internal current-
limiting circuitry and can endure current limiting for an
unlimited duration. At the point of current-limit
inception, the unit shifts from voltage control to current
control. If the output voltage is pulled very low during a
severe fault, the current-limit circuit can exhibit either
foldback or tailout characteristics (output-current
decrease or increase). The unit operates normally
once the output current is brought back into its
specified range.
Grounding Considerations
For modules without the isolated case ground pin
option, the case is internally connected to the VI(–) pin.
For modules with the isolated case ground pin,
option 7, the VI(–) pin is not connected to the case.
Data Sheet
March 2009
Lineage Power 11
18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Thermal Considerations
50.8
(2.00)
12.7 (0.50)
101.6
(4.00)
203.2 (8.00)
AIRFLOW
MEASURE CASE
TEMPERATURE AT
CENTER OF UNIT
CONNECTORS TO
LOADS, POWER
SUPPLIES, AND
DATALOGGER,
6.35 (0.25) TALL
203.2
(8.00)
9.7 (0.38)
19.1 (0.75)
WIND TUNNEL WALL
AIR VELOCITY PROBE
AMBIENT TEMPERATURE
THERMOCOUPLE
AIR-
FLOW
8-866(C).a
Note: Dimensions are in millimeters and (inches). Drawing is not to scale.
Figure 15. Thermal Test Setup
The CC025 Dual-Output-Series Power Modules are
designed to operate in a variety of thermal environ-
ments. As with any electronic component, sufficient
cooling must be provided to help ensure reliable opera-
tion of the unit. Heat-dissipating components inside the
module are thermally coupled to the case. Heat is
removed by conduction, convection, and radiation to
the surrounding environment.
The thermal data presented is based on measure-
ments taken in a wind tunnel. The test setup shown in
Figure 15 was used to collect data. Actual performance
can vary depending on the particular application
environment.
Basic Thermal Performance
The CC025 Dual-Output-Series Power Modules have a
separate power stage for each of the outputs. This
means that the maximum operating temperature can
be predicted quite closely by treating each output indi-
vidually and then summing the results. Figures 16
through 19 are used to predict the safe operating con-
dition for many different operating and environmental
conditions.
The method used to determine the maximum ambient
temperature at a given air velocity is a four-step pro-
cess:
1. Find the power dissipated for output 1 by using the
appropriate chart (Figures 16 through 18) for a par-
ticular output condition (IO1).
2. Repeat step 1 for output 2 using Figures 16
through 18.
3. Find the total power dissipated by summing the
power dissipated on each of the outputs:
(PDout1 + PDout2) = PDtotal
4. Use the total power dissipated with Figure 19 to
determine the maximum ambient temperature at
different air velocities.
1212 Lineage Power
Data Sheet
March 2009
18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Thermal Considerations (continued)
Basic Thermal Performance (continued)
For example, the CC025AJ-M power module with a
27 V input and 2.5 A output on VO1 and a 2.0 A output
on VO2 will have a power dissipation of 3.65 W (from
Figure 16) plus 2.7 W (from Figure 16) for a total of
6.35 W. Using Figure 19, it can be determined that the
maximum ambient temperature at natural convection
that the CC025AJ-M can operate at is approximately
59 °C.
Keep in mind that these are approximations of the air
temperature and velocity required to keep the case
temperature below its maximum rating. The maximum
case temperature at the point shown in Figure 15 must
be kept at 100 °C or less.
Air Velocity
The air velocity required to maintain a desired maxi-
mum case temperature for a given power dissipation
and ambient temperature can be calculated by using
Figure 19 and the following equation:
θCA TCmax,TA–
PDtotal
---------------------------------=
where θCA is the thermal resistance from case-to-ambi-
ent air (°C/W), TC, max is the desired maximum case
temperature (°C), TA is the ambient inlet temperature
(°C), and PDtotal is the total power dissipated from the
module (W).
For example, to maintain a maximum case temperature
of 85 °C with an ambient inlet temperature of 55 °C and
a power dissipation of 6.7 W, the thermal resistance is:
θCA 85 °C55°C–
6.7 W
----------------------------------
≤4.5 °CW⁄=
This corresponds to an air velocity greater than
0.46 ms–1 (90 fpm) in Figure 19.
0.0 0.5 1.0 1.5 2.0 2.5
0.0
2.5
3.0
3.5
4.0
4.5
OUTPUT CURRENT, I
O
(A)
1.5
V
I
= 36 V
1.0
0.5
2.0
V
I
= 27 V
V
I
= 18 V
8-1129(C)
Figure 16. 5 V Output Power Dissipation vs. Output
Current
0.0 0.2 0.4 0.6 0.8 1.0 1.2
0.0
1.5
2.0
2.5
3.0
3.5
OUTPUT CURRENT, I
O
(A)
1.0
V
I
= 36 V
0.5
V
I
= 27 V
V
I
= 18 V
8-1128(C)
Figure 17. 12 V Output Power Dissipation vs.
Output Current
Lineage Power 13
Data Sheet
March 2009 18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Thermal Considerations (continued)
Air Velocity (continued)
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.9
0.0
1.0
1.5
2.0
2.5
3.0
OUTPUT CURRENT, I
O
(A)
0.5
0.8
V
I
= 36 V
V
I
= 27 V
V
I
= 18 V
8-1127(C)
Figure 18. 15 V Output Power Dissipation vs.
Output Current
40 50 60 90 100
0.0
4.0
5.0
6.0
10.0
LOCAL AMBIENT TEMPERATURE, T
A
(°C)
7.0
8.0
9.0
70 80
3.0
2.0
1.0
2.03 ms
–1
(400 ft./min.)
NATURAL
CONVECTION
1.02 ms
–1
(200 ft./min.)
0.51 ms
–1
(100 ft./min.)
0.31 ms
–1
(60 ft./min.)
8-988(C)
Figure 19. Total Power Dissipation vs. Local
Ambient Temperature and Air Velocity
NAT
CONV
0.25
(50)
0.51
(100)
0.76
(150)
1.78
(350)
2.03
(400)
0.0
1.0
2.0
3.0
7.0
VELOCITY, ms
–1
(ft./min.)
4.0
5.0
6.0
1.02
(200)
1.27
(250)
1.52
(300)
8-989(C)
Figure 20. Case-to-Ambient Thermal Resistance
vs. Air Velocity
Use of Heat Sinks and Cold Plates
The CC025 Dual-Output-Series case includes through-
threaded M3 x 0.5 mounting holes allowing attachment
of heat sinks or cold plates from either side of the mod-
ule. The mounting torque must not exceed 0.56 N/m
(5 in-lb.).
The following thermal model can be used to determine
the required thermal resistance of the sink to provide
the necessary cooling:
PD
θCS
TATc
l
Ts
θSA
where PD is the power dissipated by the module, θCS
represents the interfacial contact resistance between
the module and the sink, and θSA is the sink-to-ambient
thermal impedance (°C/W). For thermal greases or
foils, a value of θCS = 0.1 °C/W to 0.3 °C/W is typical.
The required θSA is calculated from the following equa-
tion:
θSA TCTA–
PDtotal
----------------- θCS–=
Note that this equation assumes that all dissipated
power must be shed by the sink. Depending on the
user-defined application environment, a more accurate
model including heat transfer from the sides and bot-
tom of the module can be used. This equation provides
a conservative estimate in such instances.
For further information, refer to the Thermal Energy
Management CC-, CW-, DC-Series 25 W to 30 W
Board-Mounted Power Modules Technical Note.
14 Lineage Power
Data Sheet
March 2009
18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Outline Diagram
Dimensions are in millimeters and (inches).
Copper paths must not be routed beneath the power module standoffs.
Tolerances: x.x ± 0.5 mm (0.02 in.), x.xx ± 0.25 mm (0.010 in.).
Note: For standard modules, VI(–) is internally connected to the case and the CASE GROUND pin is not present.
If the CASE GROUND pin is chosen, device code suffix 7, then VI(–) is not connected to the case and the
CASE GROUND pin is floating.
Top View
1.02 (0.040) ± 0.08 (0.003) DIA
SOLDER-PLATED BRASS,
6 PLACES
(7 PLACES WITH OPTIONAL
CASE GROUND)
12.7 (0.50)
MAX
5.8 (0.23)
0.51
(0.020)
61.0
(2.40)
MAX
PIN 1
INDICATOR
DC-DC POWER MODULE
71.1 (2.80) MAX
MADE IN USA
M3
ON/OFF
V
I
(+)
V
I
(–)
V
O2
(–)
CO M
V
O1
(+)
12.70 (0.500)
5.08 (0.200)
50.8
(2.00)
61.0
(2.40)
MAX
10.16 (0.400)
15.24 (0.600)
25.40
(1.000)
4.8 (0.19)
24.1
(0.95)
20.32
(0.800)
48.3 (1.90)
63.50 ± 0.38 (2.500 ± 0.015)
71.1 (2.80) MAX
11.4 (0.45)
3.8 (0.15)
5.1 (0.20)
STANDOFF,
4 PLACES
MOUNTING INSERTS
M3 x 0.5 THROUGH,
4 PLACES
7.1 (0.28)
CASE PIN
OPTIONAL
3
2
1
4
5
6
7
Side View
Bottom View
8-755(C).b
Lineage Power 15
Data Sheet
March 200918 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
Recommended Hole Pattern
Component-side footprint.
Dimensions are in millimeters and (inches).
Recommended hole size for pin: 1.27 mm (0.050 in.).
12.70 (0.500)
5.08 (0.200)
61.0
(2.40)
MAX
10.16 (0.400)
15.24 (0.600)
25.40
(1.000)
24.1
(0.95) 20.32
0.800
48.3 (1.90)
63.50 ± 0.38 (2.500 ± 0.015)
71.1 (2.80) MAX
11.4 (0.45)
3.8 (0.15)
5.1 (0.20)
CASE OUTLINE
1
2
3
4
7
6
5
M3 x 0.5 CLEARANCE HOLE
4 PLACES (OPTIONAL)
CASE PIN
OPTIONAL
50.8
(2.00)
8-755(C).b
Data Sheet
March 2009
18 Vdc to 36 Vdc Input; 25 W
CC025 Dual-Output-Series Power Modules:
March 2009
DS97-425EPS (Replaces DS97-424EPS)
World W ide Headquarters
Lin eag e Po wer Co rporatio n
30 00 Skyline Drive, Mesquite, TX 75149, USA
+1-800-526-7819
(Outsid e U.S.A .: +1- 97 2-2 84 -2626)
www.line agepower.com
e-m ail: techsupport1@linea gepower.com
Asia-Pacific Headquarters
Tel: +65 6 41 6 4283
Eu rope, M id dle-East an d Afric a He ad qu arters
Tel: +49 8 9 6089 286
India Headquarters
Tel: +91 8 0 28411633
Lineage Power reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or
application. No rights under any patent accompany the sale of any such product(s) or information.
© 2008 Lineage Power Corporation, (Mesquite, Texas) All International Rights Reserved.
Ordering Information
Table 4. Ordering Information Table
Input Voltage Output Voltage Output Power Remote On/Off Logic Device Code Comcode
18 V—36 V ±5 V 25 W positive CC025AJ-M 107586885
18 V—36 V ±12 V 25 W positive CC025BK-M 107586893
18 V—36 V ±15 V 25 W positive CC025CL-M 107586901
Optional features may be ordered using the device code suffixes shown below. To order more than one option, list
suffixes in numerically descending order followed by the -M suffix, indicating metric (M3 x 0.5 heat sink hardware).
The heat sinks designed for this package have an M prefix, i.e., MHSTxxx45 and MHSLxxx45 (see Thermal
Energy Management CC-, CW-, DC-, and DW-Series 25 W to 30 W Board-Mounted Power Modules Te c h n i cal
Note).
Table 5. Options Table
Option Device Code Suffix
Short pins: 2.79 mm ± 0.25 mm
(0.110 in. ± 0.010 in.)
8
Isolated case ground pin 7
Negative logic remote on/off 1
Please contact your Lineage Power Account Manager or Field Application Engineer for pricing and availability.
