English
Language : 

CTDD3120DF-D1R5K-3 Datasheet, PDF (1/2 Pages) Central Technologies – Custom service available
DC/DC Converters
ctparts.com
CTDD3120DF-D1.5K-3
Series
4:1 Wide Input Isolated & Regulated
3W Output, Dual Output
Not shown at actual size.
RoHS
Compliant
FEATURES
Efficiency: To 78%
Temperature Range: -40°C to +85°C
Isolation: 1.5KVDC
Package: UL94-V0
Miscellaneous: Wide (4:1) Input Range. Dual Output. No heat
sink required. Short Circuit Protection. Custom service available.
Samples available.
CHARACTERISTICS
Output Short Circuit Protection: Continuous Automatic
Recovery.
Temperature Rise at Full Load: 15°C (Typ.)
Cooling: Free air convection
No Load, Power Consumption: 200mW (typical)
Operating Temperature Range: -40°C to +85°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: >1,000,000 hours
Miscellaneous: RoHS Compliant.
SPECIFICATIONS
Part
Number
Vin
Nom.
(VDC)
Input Range
(VDC)
Vin
Max.*
(VDC)
Vout
(VDC)
Iout
Max.
(mA)
Iout Effi.
Min. Typ.
(mA) (%)
CTDD3120DF-2405-D1.5K-3 24
CTDD3120DF-2412-D1.5K-3 24
CTDD3120DF-2415-D1.5K-3 24
9-36
9-36
9-36
40
±5
±300 ±30 72
40
±12
±125 ±12 78
40
±15
±100 ±10 76
CTDD3120DF-4805-D1.5K-3 48
CTDD3120DF-4812-D1.5K-3 48
CTDD3120DF-4815-D1.5K-3 48
18-72
18-72
18-72
80
±5
±300 ±30 72
80
±12
±125 ±12 78
80
±15
±100 ±10 76
*If Input voltage above specified may cause permanent damage to the device
Item
Isolation Voltage
Isolation Resistance
ISOLATION SPECIFICATIONS
Test Condition
MIN
TYP
Flash tested for 1 minute
1500
Test at 500VDC
1000
MAX
Units
VDC
MΩ
Item
3W Output Power
Voltage accuracy
Load regulation
Line regulation
Temperature drift (Vout)
Ripple
Noise
Switching frequency
OUTPUT SPECIFICATIONS
Test Condition
MIN
0.3
Refer to Recommended Circuit
From 10% to 100% load
Input Voltage from low to high
Refer to Temp. Derating Graph
20MHz Bandwidth
20MHz Bandwidth
100% load, nominal input voltage
TYP MAX
3
±1
±3
±0.5
±1
±0.2 ±0.5
±0.03
50
50
150
300 (PFM)
Units
W
%
%
%
%/°C
mVp-p
mVp-p
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
120
100
80
60
Safe Operating Area
40
20
0
-40 0 40 71 85 120
Operating Temperature (°C)
CENTRAL
08.13.07
Manufacturer of Passive and Discrete Semiconductor Components
800-684-5322 Inside US
949-453-1811 Outside US
Copyright © 2007 by CT Magnetics, DBA Central Technologies. All rights reserved.
CT Magnetics reserves the right to make improvements or change specifications without notice