FDD25 Datasheet PDF - Chinfa Electronics Ind

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FDD25
Chinfa Electronics Ind

Part Number FDD25
Description DC - DC CONVERTER 20 ~ 30W SINGLE & DUAL OUTPUT
Page 4 Pages


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FDD25 SERIES
DC - DC CONVERTER
20 ~ 30W SINGLE & DUAL OUTPUT
On /off
MODEL LIST
FEATURES
2:1 WIDE INPUT RANGE
I/O ISOLATION
INPUT Pi FILTER
SHORT CIRCUIT PROTECTION
HIGH PERFORMANCE
2 YEARS WARRANTY
MODEL NO.
INPUT
VOLTAGE
INPUT
CURRENT
(typ.)
OUTPUT
WATTAGE
OUTPUT
VOLTAGE
OUTPUT EFF.
CURRENT (min.)
EFF.
(typ.)
CAPACITOR
LOAD
(max.)
Single Output Models
FDD25 - 03S1
FDD25 - 05S1
FDD25 - 12S1
FDD25 - 15S1
FDD25 - 03S2
FDD25 - 05S2
FDD25 - 12S2
FDD25 - 15S2
FDD25 - 03S3
FDD25 - 05S3
FDD25 - 12S3
FDD25 - 15S3
9~18 VDC
9~18 VDC
9~18 VDC
9~18 VDC
18~36 VDC
18~36 VDC
18~36 VDC
18~36 VDC
36~72 VDC
36~72 VDC
36~72 VDC
36~72 VDC
2.1 A
2.55 A
2.45 A
2.42 A
1.05 A
1.24 A
1.45 A
1.45 A
0.5 A
0.6 A
0.71 A
0.7 A
20 WATTS
25 WATTS
25 WATTS
25 WATTS
20 WATTS
25 WATTS
30 WATTS
30 WATTS
20 WATTS
25 WATTS
30 WATTS
30 WATTS
+3.3 VDC
+ 5 VDC
+ 12 VDC
+ 15 VDC
+3.3 VDC
+ 5 VDC
+ 12 VDC
+ 15 VDC
+3.3 VDC
+ 5 VDC
+ 12 VDC
+ 15 VDC
6000 mA
5000 mA
2100 mA
1700 mA
6000 mA
5000 mA
2500 mA
2000 mA
6000 mA
5000 mA
2500 mA
2000 mA
77%
81%
84%
85%
78%
83%
84%
86%
78%
83%
85%
86%
79%
83%
86%
87%
80%
85%
86%
88%
80%
85%
87%
88%
7000μF
7000μF
3500μF
1000μF
7000μF
7000μF
3500μF
1000μF
7000μF
7000μF
3500μF
1000μF
FDD25 - 12D1
FDD25 - 15D1
FDD25 - 12D2
FDD25 - 15D2
FDD25 - 12D3
FDD25 - 15D3
9~18 VDC
9~18 VDC
18~36 VDC
18~36 VDC
36~72 VDC
36~72 VDC
2.5 A
2.47 A
1.45 A
1.44 A
0.73 A
0.72 A
Dual Output Models
25 WATTS
25 WATTS
30 WATTS
30 WATTS
30 WATTS
30 WATTS
± 12 VDC
± 15 VDC
± 12 VDC
± 15 VDC
± 12 VDC
± 15 VDC
± 1050 mA
± 850 mA
± 1250 mA
± 1000 mA
± 1250 mA
± 1000 mA
83%
85%
85%
86%
85%
87%
85%
87%
87%
88%
87%
89%
± 470μF
± 220μF
± 470μF
± 220μF
± 470μF
± 220μF
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2010.02.09
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FDD25 SERIES
SINGLE & DUAL OUTPUT
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25oC Unless Otherwise Noticed
GENERAL
Characteristics
Conditions
min. typ. max. unit
Switching frequency
Isolation voltage
Isolation resistance
Isolation capacitance
Ambient temperature
Case temperature
Derating
Storage temperature
Relative humidity
Temperature coefficient
Dimension
MTBF
Cooling
Vi nom, Io nom
Input - Output
Input - Output, @ 500VDC
100KHz / 1V
Operating at Vi nom, Io nom
Operating at Vi nom, Io nom
Vi nom
Non operational
Vi nom, Io nom
Vi nom, Io min
Be1lcore issue 6@40oC, GB
Free air convection
200
1500
100
1000
-25 + 71
+100
See derating curve
-40 +100
20 95
± 0.02
L50.8 x W50.8 x H12.0
720000
KHz
VDC
MΩ
PF
oC
oC
oC
% RH
% / oC
mm
Hours
INPUT SPECIFICATIONS
Characteristics
Conditions
min. typ. max. unit
Input voltage range
Ta min ... Ta max, Io nom
9 12
18 VDC
18 24
36 VDC
No load input current
Vi nom, Io = 0
12V models
36 48
72 VDC
20 mA
24V models
15 mA
Input voltage w/o damage
Io nom
48V models
12V models
10 mA
20 VDC
24V models
40 VDC
Startup voltage
Input filter
Io nom
Pi type
48V models
12V models
24V models
48V models
75 VDC
8.5 VDC
15 VDC
35 VDC
OUTPUT SPECIFICATIONS
Characteristics
Conditions
min. typ. max. unit
Output voltage accuracy
Minimum load
Line regulation
Load regulation
Cross regulation (Dual model)
Startup time
Transient recovery time
Ripple & noise
Voltage trim range 1)
Vi nom, Io nom
Vi nom
single output models
dual output models (each output)
Io nom, Vi min ...Vi max
Vi nom, Io 0 ...Io nom, single output models
Vi nom, Io min ...Io nom, dual output models
Aymmetrical load 10% - 100% FL
Vi nom, Io nom
Vi nom, 1 ~ 0.5 lo nom
Vi nom, Io nom,
BW = 20MHz
3.3V & 5V models
12V, 15V & dual
Vi nom, Io nom
3.3V model
0
10
±5
±2
±1
±2
±5
±5
30
500
100
150
%
%
%
%
%
%
%
ms
μs
mV
mV
%
Efficiency
Vi nom, Io nom, Po / Pi
5V, 12V, 15V & dual
± 10 %
Up to 89%, See model list and efficiency curve
NOTE 1 : Pls refer to Fig 1 & Table 1 for connection and resistance recommended.
www.DCaOtaSNheeTt4RUO.coLm 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
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2010.02.09
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PHYSICAL CHARACTERISTICS
Case size
Case material
Weight
Patting material
50.8 x 50.8 x 12.0 mm (2 x 2 x 0.47 inches)
Plastic base / Metal case
70 g
Epoxy
MECHANISM & PIN CONFIGURATION
mm [inch]
FDD25 SERIES
SINGLE & DUAL OUTPUT
45.72 [1.80]
2.54 [0.10]
12.00 [0.47]
6.00 [0.24]
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]
PIN ASSIGNMENT
GENERAL
PIN NO.
1
SINGLE
Vi+
DUAL
Vi+
2
Vi -
Vi -
22.86 [0.90]
5.08 [0.20]
10.16 [0.40]
DIA 1.00 [0.04]
5
16
27
48
50.80 [2.00]
BOTTOM VIEW
10.16 [0.40]
10.16 [0.40]
10.16 [0.40]
10.16 [0.40]
10.16 [0.40]
4
ON/OFF
ON/OFF
5
NO PIN
Vo +
6
Vo +
com
7
Vo -
Vo -
8
Trim
Trim
CIRCUIT SCHEMATIC
Block diagram for FDD25 series with single output
Vi +
Vi -
ON / OFF
Switching
Device
Rectifier
PWM
Controller
Opto -
Isolation
Reference &
Error Amp.
Block diagram for FDD25 series with dual output
Vo +
Vi +
Vo - Vi -
Trim
ON / OFF
Switching
Device
PWM
Controller
Rectifier
Rectifier
Opto -
Isolation
Reference &
Error Amp.
Vo +
com
Vo -
Trim
RECOMMENDED CIRCUIT
Recommended filter for EN55022 Class B compliance
L1
+
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C1
-
Vin +
Vo +
C2 FDD25
Vin -
Vo -
C3
www.chinfa.com
2010.02.09
The commponents used in the above figure, together with the
manufacturer part numbers for these components, are as follows.
C1 C2 C3
FDD25-XXX1
4.7μF / 50V
MLCC
4.7μF / 50V
MLCC
InF / 2KV
MLCC
FDD25-XXX2
3.3μF / 50V 3.3μF / 50V
MLCC
MLCC
InF / 2KV
MLCC
FDD25-XXX3
3.3μF / 100V 3.3μF / 100V
MLCC
MLCC
InF / 2KV
MLCC
L1
1.5mH
Common
Choke
1.5mH
Common
Choke
1.5mH
Common
Choke
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RECOMMENDED CIRCUIT
Recommended EN 55022 Class B filter circuit layout.
FDD25 SERIES
SINGLE & DUAL OUTPUT
DERATING AND EFFICIENCY CURVE
Temperature derating curve
100
NATURAL
CONVECTION
COOLING
0
-25 71
Ambient Temperature [ oC ]
Efficiency Vs Input Voltage
FDD25-05S2
88
87
86
85
84
83
82
18 20 22 24 26 28 30
Input Voltage (V)
Fig. 1 Trim connection
( For Single output )
100
Io : Full Load
32 34 36
6 Vo +
7 Vo -
8 Trim
Rext 1
6 Vo +
7 Vo -
8 Trim
Rext 2
Efficiency Vs Output Load
FDD25-05S2
90
85
80
75
70
65
60
10 20 30
40 50 60 70
Output Load (%)
Vi : 24VDC
80 90 100
( For Dual output )
5 Vo +
6 com
7 Vo -
8 Trim
Rext 1
5 Vo +
6 com
7 Vo -
8 Trim
Rext 2
Table 1 Typical resistor values for various output voltage adjustment settings
Type
Rext 1
Vo nom -2.5%
Vo nom -5%
Vo nom +2.5%
FDD25-03SX
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3.3KΩ
Vo nom -5%
1KΩ
Vo nom -10%
12KΩ
Vo nom +5%
FDD25-05SX
6.8KΩ
680Ω
4.7KΩ
FDD25-12SX
FDD25-15SX
FDD25-12DX
22KΩ
150KΩ
150KΩ
6.2KΩ
6.2KΩ
68KΩ
6.2KΩ
20KΩ
10KΩ
FDD25-15DX
330KΩ
180KΩ
27KΩ
Rext 2
Vo nom +5%
5.6KΩ
Vo nom +10%
680Ω
0Ω
3.9KΩ
1.5KΩ
6.8KΩ
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2010.02.09
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