CT CTDD2727DF-0712-S-3 Dc/dc converter Datasheet

DC/DC Converters
SPECIFICATIONS
CTDD2727DF-S Series
Wide Input Regulated & Non-Isolated
3W~9W Output, Single Output
Not shown at actual size.
RoHS
Compliant
ctparts.com
Vin
Nom.
(VDC)
Input Range
(VDC)
Vin
Max.*
(VDC)
Vout
(VDC)
CTDD2727DF-0305-S-3
CTDD2727DF-0712-S-3
CTDD2727DF-0724-S-3
CTDD2727DF-1203-S-3
CTDD2727DF-1205-S-3
CTDD2727DF-2403-S-3
CTDD2727DF-2405-S-3
3.3
7.2
7.2
12
12
24
24
2.7-5.4
6.4-8.4
6.4-8.4
9-18
9-18
18-35
18-35
5.4
10
10
20
20
35
35
5
12
24
3.3
5
3.3
5
CTDD2727DF-0705-S-5
CTDD2727DF-0712-S-5
CTDD2727DF-1205-S-5
CTDD2727DF-1209-S-5
CTDD2727DF-2405-S-5
7.2
7.2
12
12
24
6.4-8.4
6.4-8.4
9-18
9-18
18-35
10
10
20
20
35
CTDD2727DF-0712-S-9
7.2
6.4-8.4
10
Part
Number
Iout
Max.
(mA)
Iout
Min.
(mA)
Effi.
Typ.
(%)
150
250
100
900
600
900
600
15
25
10
90
60
90
60
80
81
82
79
81
79
80
5
12
5
9
5
1000
417
1000
550
1000
100
42
100
55
100
85
85
85
87
85
12
750
75
86
*If Input voltage above specified may cause permanent damage to the device
ISOLATION SPECIFICATIONS
Item
Test Condition
MIN
Isolation Voltage
Flash tested for 1 minute
0
VDC
Test at 500VDC
0
MΩ
Isolation Resistance
TYP
MAX
Units
OUTPUT SPECIFICATIONS
FEATURES
Item
Efficiency: To 85%
Temperature Range: -20°C to +71°C
Package: UL94-V0
Miscellaneous: Wide (2:1) Input Range. No heat sink required.
Industry Standard Pinout. Single Output. Custom service
available.
Samples available.
CHARACTERISTICS
Test Condition
3W Output Power
MAX
Units
3
W
±3
%
Refer to Recommended Circuit
Load regulation
From 10% to 100% load
±0.5
%
Line regulation
Input Voltage from low to high
±0.3
%
Temperature drift (Vout)
Refer to Temp. Derating Graph
0.03
%/°C
Ripple
20Hz to 300kHz Bandwidth
30
50
mVp-p
Noise
DC-20MHz Bandwidth
80
150
mVp-p
Switching frequency
100% load, nominal input voltage
100
400
KHz
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output unless
otherwise specified.
TYPICAL CHARACTERISTICS
Temperature Derating Graph
Output Power (%)
120
100
80
60
40
Safe Operating Area
20
0
-40
0
120
40
71 85
Ambient Temperature (°C)
01.05.07
Technologies
TYP
0.3
Positive voltage accuracy
Output Short Circuit Protection: Continuous
Temperature Rise at Full Load: 30°C (Typ.)
Cooling: Free air convection
No Load, Power Consumption: 500mW (typical)
Operating Temperature Range: -20°C to +71°C
Storage Temperature Range: -55°C to +125°C
Lead Temperature: 300°C (1.5mm from case for 10 seconds)
Storage Humidity Range: < 95%
Case Material: Plastic (UL94-V0)
MTBF: >3,500,000 hours
Miscellaneous: RoHS Compliant.
CENTRAL
MIN
Manufacturer of Passive and Discrete Semiconductor Components
800-684-5322 Inside US
949-453-1811 Outside US
Copyright © 2006 by CT Magnetics, DBA Central Technologies. All rights reserved.
CT Magnetics reserves the right to make improvements or change specifications without notice
DC/DC Converters
ctparts.com
CTDD2727DF-S Series
Wide Input Regulated & Non-Isolated
3W~10W Output, Single Output
OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS
CTDD2727DF-S Package
27.50
9.00
Side View
4.00
20.32
3
4
27.50
Top View
1 2
CTDD2727DF-S Footprint
2.54
1.60ø+0.15/-0
4
3
1
2
2.54
Note: All Pins on a 2.54m pitch; all pin diameters are 0.50mm; all dimensions in mm.
PIN CONNECTIONS
Pin Function
1
2
3
4
4
3
COM
Vin
+Vo
NC
Bottom View
2 1
RECOMMENDED CIRCUIT
All the CTDD2727DF-S Series have been tested according to the following recommended testing circuit before leaving
factory. This series should be tested under load. Never be tested under no load (See figure 1 & 2). If you want to further
decrease the input/output ripple, you can increase capacitance properly or choose capacitors with low ESR. However, the
capacitance should not be too high (See table 1). If you want to use the products in high EMI, please choose our metal
packagedproducts.
External Capacitor Table (table 1)
Figure 2
Vin
C in
C out
(0+70°C)
C out
(-40+85°C)
lp
100µF
24V
&
48V
10µF
100µF
(electrolytic
capacitor)
47µF
(tantalum
capacitor)
Vin
+ Vout
DC-DC
+
100µF
25V
100µF
25V
GND
Load
Input Current (A)
Figure 1
5V
&
12V
Input Voltage
Range
GND
Input Voltage (V)
CENTRAL
Technologies
01.05.07
Manufacturer of Passive and Discrete Semiconductor Components
800-684-5322 Inside US
949-453-1811 Outside US
Copyright © 2006 by CT Magnetics, DBA Central Technologies. All rights reserved.
CT Magnetics reserves the right to make improvements or change specifications without notice
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