CHINFA TDD25-15S3

TDD25 SERIES
DC - DC CONVERTER
23 ~ 25W SINGLE & DUAL OUTPUT
FEATURES
LOW COST
2:1 & 3:1 WIDE INPUT RANGE
I/O ISOLATION
INPUT Pi FILTER
SHORT CIRCUIT PROTECTION
HIGH PERFORMANCE
2 YEARS WARRANTY
MODEL LIST
EFF.
(min.)
MODEL NO.
INPUT
VOLTAGE
TDD25 - 03S2
18~60 VDC
23 WATTS
+3.3 VDC
7000 mA
78%
TDD25 - 05S2
18~60 VDC
25 WATTS
+ 5 VDC
5000 mA
84%
TDD25 - 12S2
18~60 VDC
24 WATTS
+ 12 VDC
2000 mA
84%
TDD25 - 15S2
18~60 VDC
25 WATTS
+ 15 VDC
1700 mA
84%
TDD25 - 03S3
35~75 VDC
23 WATTS
+3.3 VDC
7000 mA
78%
TDD25 - 05S3
35~75 VDC
25 WATTS
+ 5 VDC
5000 mA
84%
TDD25 - 12S3
35~75 VDC
24 WATTS
+ 12 VDC
2000 mA
84%
TDD25 - 15S3
35~75 VDC
25 WATTS
+ 15 VDC
1700 mA
84%
OUTPUT
OUTPUT
WATTAGE
VOLTAGE
Single Output Models
OUTPUT
CURRENT
Dual Output Models
TDD25 - 12D2
18~60 VDC
25 WATTS
12 VDC
TDD25 - 15D2
18~60 VDC
25 WATTS
TDD25 - 12D3
35~75 VDC
25 WATTS
TDD25 - 15D3
35~75 VDC
25 WATTS
www.chinfa.com
2007.08.30
1000 mA
84%
15 VDC
850 mA
84%
12 VDC
1000 mA
84%
15 VDC
850 mA
84%
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TDD25 SERIES
SINGLE & DUAL OUTPUT
CIRCUIT SCHEMATIC
Block diagram for TDD25 series with single output
Vo +
Vi +
Switching
Device
Rectifier
Vi -
Vo -
PWM
Controller
Opto Isolation
Reference &
Error Amp.
Trim
ON / OFF
Block diagram for TDD25 series with dual output
Vi +
Vo +
Rectifier
com
Switching
Device
Rectifier
Vo -
Vi PWM
Controller
ON / OFF
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2007.08.30
Opto Isolation
Reference &
Error Amp.
Trim
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TDD25 SERIES
SINGLE & DUAL OUTPUT
SPECIFICATION
o
All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed
GENERAL
Characteristics
Conditions
min.
typ.
max.
200
unit
Switching frequency
Vi nom, Io nom
Isolation voltage
Input / Output
Isolation resistance
Input / Output, @ 500VDC
100
Ambient temperature
3.3V & 5V model
-25
+ 60
o
12V, 15V & dual output model
-25
+ 71
o
+ 100
o
Case temperature
KHz
1,500
VDC
M
Operating at Vi nom, Io nom
Derating
Vi nom
Storage temperature
Non operational
Dimension
L50.8 x W76.2 x H12
Cooling
Free air convection
Case material
Metal
C
C
C
o
%/ C
See derating curve
-40
o
+ 100
C
mm
max.
unit
INPUT SPECIFICATIONS
Characteristics
Input voltage range
No load input current
Input voltage w/o damage
Startup voltage
Input filter
Conditions
min.
typ.
Ta min ... Ta max,
Io nom
3:1 models
18
24
60
VDC
2:1 models
35
48
48
75
VDC
Vi = nom
24V models
15
mA
48V models
10
mA
Io nom
Io nom
24V models
65
VDC
48V models
80
VDC
24V models
16
VDC
48V models
30
VDC
Pi type
OUTPUT SPECIFICATIONS
Characteristics
Conditions
min.
typ.
max.
unit
Output voltage accuracy
Vi nom, Io nom
Minimum load
Vi nom
Line regulation
Io nom, Vi min ...Vi max
1
%
Load regulation
Vi nom, Io 0 ... Io nom, single output models
2
%
Vi nom, Io min ... Io nom, dual output models
5
%
0.02
% / C
3.3V & 5V models
150
mV
12V & 12V
240
mV
300
mV
2
single output models
dual output models (each output)
Transient recovery time
25% load, step changed
Temperature coefficient
Vi nom, Io nom
Ripple & noise
Vi nom, Io nom,
BW = 20MHz
Voltage trim range
Efficiency
www.chinfa.com
2007.08.30
Vi nom
0
%
%
10
%
S
500
o
15V & 15V
3.3V output models
5
%
5V, 12V, 15V & dual
10
%
Vi nom, Io nom, Po / Pi
Up to 84%, See model list
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TDD25 SERIES
SINGLE & DUAL OUTPUT
SPECIFICATION
o
All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed
CONTROL AND PROTECTION
Remote ON / OFF
ON: opened or 8 ~ 10VDC applied, reference to input GND
OFF: -0.3 ~ 2VDC applied, reference to input GND
Input reversed
Shunt diode built in, external fuse recommended
Output short circuit
Continuous
MECHANISM & PIN CONFIGURATION
mm [inch]
6.35 [0.25]
76.20 [3.00]
63.50 [2.50]
6
15.24 [0.60]
2
7
3
8
10.16 [0.40]
10.16 [0.40]
12.00 [0.47]
5.08 [0.20]
10.16 [0.40]
10.16 [0.40]
5.00 [0.20]
DIA 1.00 [0.04]
9
20.32 [0.80]
10.16 [0.40]
5
5.08 [0.20]
10
BURL AT 4 CORNER
BOTTOM VIEW
PHYSICAL CHARACTERISTICS
50.8 x 76.2 x 12 mm 2 x 3 x 0.47 inches
CASE SIZE
CASE MATERIAL
Metal
WEIGHT
105 g
PIN ASSIGNMENT
GENERAL
PIN NO.
2
3
5
6
7
N. C.
N. C.
Vo -
N. C.
SINGLE
Vi -
Vi+
ON / OFF
DUAL
Vi -
Vi+
ON / OFF
8
9
10
Vo -
Vo +
Trim
com
Vo +
Trim
DERATING
Power out [ % ]
100
12V, 15V & dual
NATURAL
CONVECTION
COOLING
0
-25
www.chinfa.com
2007.08.30
60
Ambient Temperature [ oC ]
3.3V & 5V
71
100
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