CHINFA FDD25-03S2

FDD25 SERIES
DC - DC CONVERTER
20 ~ 30W SINGLE & DUAL OUTPUT
FEATURES
f
On/of
‧2:1 WIDE INPUT RANGE
‧I/O ISOLATION
‧INPUT Pi FILTER
‧SHORT CIRCUIT PROTECTION
‧HIGH PERFORMANCE
‧2 YEARS WARRANTY
MODEL LIST
INPUT
EFF.
EFF. CAPACITOR
INPUT
OUTPUT OUTPUT OUTPUT
LOAD
CURRENT
MODEL NO.
VOLTAGE
WATTAGE VOLTAGE CURRENT (min.) (typ.) (max.)
(typ.)
Single Output Models
FDD25 - 03S1
9~18 VDC
2.1 A
20 WATTS
+3.3 VDC
6000 mA
77%
79%
7000μF
FDD25 - 05S1
9~18 VDC
2.55 A
25 WATTS
+ 5 VDC
5000 mA
81%
83%
7000μF
FDD25 - 12S1
9~18 VDC
2.45 A
25 WATTS
+ 12 VDC
2100 mA
84%
86%
3500μF
FDD25 - 15S1
9~18 VDC
2.42 A
25 WATTS
+ 15 VDC
1700 mA
85%
87%
1000μF
FDD25 - 03S2
18~36 VDC
1.05 A
20 WATTS
+3.3 VDC
6000 mA
78%
80%
7000μF
FDD25 - 05S2
18~36 VDC
1.24 A
25 WATTS
+ 5 VDC
5000 mA
83%
85%
7000μF
FDD25 - 12S2
18~36 VDC
1.45 A
30 WATTS
+ 12 VDC
2500 mA
84%
86%
3500μF
FDD25 - 15S2
18~36 VDC
1.45 A
30 WATTS
+ 15 VDC
2000 mA
86%
88%
1000μF
FDD25 - 03S3
36~72 VDC
0.5 A
20 WATTS
+3.3 VDC
6000 mA
78%
80%
7000μF
FDD25 - 05S3
36~72 VDC
0.6 A
25 WATTS
+ 5 VDC
5000 mA
83%
85%
7000μF
FDD25 - 12S3
36~72 VDC
0.71 A
30 WATTS
+ 12 VDC
2500 mA
85%
87%
3500μF
FDD25 - 15S3
36~72 VDC
0.7 A
30 WATTS
+ 15 VDC
2000 mA
86%
88%
1000μF
Dual Output Models
FDD25 - 12D1
9~18 VDC
2.5 A
25 WATTS
± 12 VDC
± 1050 mA
83%
85%
± 470μF
FDD25 - 15D1
9~18 VDC
2.47 A
25 WATTS
± 15 VDC
± 850 mA
85%
87%
± 220μF
FDD25 - 12D2
18~36 VDC
1.45 A
30 WATTS
± 12 VDC
± 1250 mA
85%
87%
± 470μF
FDD25 - 15D2
18~36 VDC
1.44 A
30 WATTS
± 15 VDC
± 1000 mA
86%
88%
± 220μF
FDD25 - 12D3
36~72 VDC
0.73 A
30 WATTS
± 12 VDC
± 1250 mA
85%
87%
± 470μF
FDD25 - 15D3
36~72 VDC
0.72 A
30 WATTS
± 15 VDC
± 1000 mA
87%
89%
± 220μF
www.chinfa.com
2010.02.09
[email protected]
P1
FDD25 SERIES
SINGLE & DUAL OUTPUT
SPECIFICATION
o
All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed
GENERAL
Characteristics
Vi nom, Io nom
Input - Output
Isolation resistance
Isolation capacitance
Input - Output, @ 500VDC
Case temperature
Operating at Vi nom, Io nom
Derating
Vi nom
Non operational
Vi nom, Io nom
VDC
MΩ
100
1000
+ 71
-25
PF
o
C
+100
o
-40
+100
o
20
95
C
See derating curve
Vi nom, Io min
± 0.02
Dimension
L50.8 x W50.8 x H12.0
Be1lcore issue [email protected] oC, GB
MTBF
Cooling
unit
KHz
1500
Ambient temperature
Temperature coefficient
max.
200
100KHz / 1V
Operating at Vi nom, Io nom
Storage temperature
Relative humidity
typ.
min.
Conditions
Switching frequency
Isolation voltage
C
% RH
% / oC
mm
Hours
720000
Free air convection
INPUT SPECIFICATIONS
Characteristics
Input voltage range
Conditions
Ta min ... Ta max, Io nom
No load input current
Io nom
typ.
max.
18
VDC
18
36
VDC
36
48
72
VDC
12V models
20
mA
24V models
mA
48V models
15
10
12V models
20
VDC
24V models
40
75
VDC
48V models
Startup voltage
Io nom
unit
12
24
9
Vi nom, Io = 0
Input voltage w/o damage
min.
mA
VDC
12V models
8.5
VDC
24V models
15
VDC
48V models
35
VDC
Pi type
Input filter
OUTPUT SPECIFICATIONS
Characteristics
Output voltage accuracy
Minimum load
Conditions
typ.
max.
Vi nom, Io nom
Vi nom
± 2
single output models
dual output models (each output)
Line regulation
Load regulation
min.
0
%
Vi nom, Io min ...Io nom, dual output models
Voltage trim range
1)
Aymmetrical load 10% - 100% FL
Vi nom, Io nom
Vi nom, 1 ~ 0.5 lo nom
Vi nom, Io nom,
BW = 20MHz
Vi nom, Io nom
3.3V & 5V models
12V, 15V & dual
3.3V model
5V, 12V, 15V & dual
Efficiency
Vi nom, Io nom, Po / Pi
%
%
10
Io nom, Vi min ...Vi max
Vi nom, Io 0 ...Io nom, single output models
Cross regulation (Dual model)
Startup time
Transient recovery time
Ripple & noise
unit
±5
± 1
%
± 2
± 5
%
± 5
30
%
ms
500
μs
100
mV
150
mV
%
%
%
± 10
Up to 89%, See model list and efficiency curve
NOTE 1 : Pls refer to Fig 1 & Table 1 for connection and resistance recommended.
CONTROL AND PROTECTION
Remote ON / OFF
ON : opened or 5 ~ 10VDC applied, reference to input GND
OFF : -0.3 ~ 2VDC applied, reference to input GND
Input reversed
Shunt diode built in, external fuse recommended (12Vin : 3A, 24Vin : 2A, 48Vin : 1A)
Output short circuit
Current limited (Auto-recovery)
Rated over load protection
110%min....140%max
www.chinfa.com
2010.02.09
[email protected]
P2
FDD25 SERIES
SINGLE & DUAL OUTPUT
PHYSICAL CHARACTERISTICS
Case size
50.8 x 50.8 x 12.0 mm (2 x 2 x 0.47 inches)
Case material
Plastic base / Metal case
Weight
70 g
Patting material
Epoxy
MECHANISM & PIN CONFIGURATION
mm [inch]
45.72 [1.80]
2.54 [0.10]
10.16 [0.40]
50.80 [2.00]
5
22.86 [0.90]
10.16 [0.40]
5.08 [0.20]
12.00 [0.47]
6
1
2
10.16 [0.40]
7
10.16 [0.40]
6.00 [0.24]
10.16 [0.40]
4
DIA 1.00 [0.04]
8
10.16 [0.40]
GENERAL TOLERANCE
0.00[0.00] - 30.00[1.18]
±0.30[0.01]
30.00[1.18] - 120.00[4.72]
±0.50[0.02]
50.80 [2.00]
BOTTOM VIEW
PIN ASSIGNMENT
GENERAL
PIN NO.
1
2
4
5
6
7
8
SINGLE
Vi+
Vi -
ON/OFF
NO PIN
Vo +
Vo -
Trim
DUAL
Vi+
Vi -
ON/OFF
Vo +
com
Vo -
Trim
CIRCUIT SCHEMATIC
‧Block diagram for FDD25 series with dual output
‧Block diagram for FDD25 series with single output
Vo +
Vi +
Vi +
Vo +
Rectifier
Switching
Device
com
Switching
Device
Rectifier
Rectifier
Vo -
Vi -
PWM
Controller
Opto Isolation
Reference &
Error Amp.
Trim
ON / OFF
Vo -
Vi -
Opto Isolation
PWM
Controller
Reference &
Error Amp.
Trim
ON / OFF
RECOMMENDED CIRCUIT
‧The commponents used in the above figure, together with the
manufacturer part numbers for these components, are as follows.
‧Recommended filter for EN55022 Class B compliance
L1
C1
+
Vin +
C1
C2
Vo +
FDD25
-
C3
L1
1.5mH
Common
Choke
1.5mH
Common
Choke
1.5mH
Common
Choke
FDD25-XXX1
4.7μF / 50V
MLCC
4.7μF / 50V
MLCC
InF / 2KV
MLCC
FDD25-XXX2
3.3μF / 50V
MLCC
3.3μF / 50V
MLCC
InF / 2KV
MLCC
FDD25-XXX3
3.3μF / 100V 3.3μF / 100V
MLCC
MLCC
InF / 2KV
MLCC
Vo -
Vin -
C2
C3
www.chinfa.com
2010.02.09
[email protected]
P3
FDD25 SERIES
SINGLE & DUAL OUTPUT
RECOMMENDED CIRCUIT
‧Recommended EN 55022 Class B filter circuit layout.
DERATING AND EFFICIENCY CURVE
Temperature derating curve
Power out [ % ]
100
NATURAL
CONVECTION
COOLING
0
-25
71
Ambient Temperature [ oC ]
100
88
90
87
85
86
80
Efficiency [ % ]
Efficiency [ % ]
Efficiency Vs Input Voltage
FDD25-05S2
85
84
83
20
22
24
26
28
30
Input Voltage (V)
32
34
75
70
65
Io : Full Load
82
18
Efficiency Vs Output Load
FDD25-05S2
60
36
Vi : 24VDC
10
20
30
40
50
60
70
Output Load (%)
80
90
100
Fig. 1 Trim connection
( For Single output )
6
Vo +
7
Vo -
8
Rext 1
Trim
( For Dual output )
6
Vo +
7
Vo -
8
Rext 2
5
Vo +
5
Vo +
6
com
6
com
7
Vo -
7
Vo -
8
Trim
8
Trim
Rext 1
Rext 2
Trim
Table 1 Typical resistor values for various output voltage adjustment settings
Type
Rext 1
Vo nom -2.5%
FDD25-03SX
3.3KΩ
Rext 2
Vo nom -5%
1KΩ
Vo nom +2.5%
Vo nom +5%
12KΩ
5.6KΩ
Type
Vo nom -5%
Vo nom +5%
Vo nom +10%
FDD25-05SX
6.8KΩ
680Ω
4.7KΩ
680Ω
FDD25-12SX
6.2KΩ
6.2KΩ
0Ω
FDD25-15SX
22KΩ
150KΩ
6.2KΩ
20KΩ
3.9KΩ
FDD25-12DX
150KΩ
68KΩ
10KΩ
1.5KΩ
FDD25-15DX
330KΩ
180KΩ
27KΩ
6.8KΩ
www.chinfa.com
2010.02.09
Vo nom -10%
[email protected]
P4