CHINFA RDD08

RDD08U SERIES
DC - DC CONVERTER
6.6 ~ 8.1W SINGLE & DUAL OUTPUT
FEATURES
LOW COST
2:1 WIDE INPUT RANGE
I/O ISOLATION
INPUT Pi FILTER
SHORT CIRCUIT PROTECTION
HIGH PERFORMANCE
UL/cUL/TUV/CE
MODEL LIST
MODEL NO.
INPUT
OUTPUT
OUTPUT
OUTPUT
VOLTAGE WATTAGE
VOLTAGE
CURRENT
Single Output Models
EFF.
(TYP.)
EFF.
(min.)
RDD08 - 03S1U
9~18 VDC
6.6 WATTS
+3.3 VDC
2000 mA
80%
78%
RDD08 - 05S1U
9~18 VDC
7.5 WATTS
+ 5 VDC
1500 mA
82%
80%
RDD08 - 12S1U
9~18 VDC
8 WATTS
+ 12 VDC
670 mA
85%
83%
RDD08 - 15S1U
9~18 VDC
8.1 WATTS
+ 15 VDC
540 mA
85%
83%
RDD08 - 03S2U
18~36 VDC
6.6 WATTS
+3.3 VDC
2000 mA
80%
78%
RDD08 - 05S2U
18~36 VDC
7.5 WATTS
+ 5 VDC
1500 mA
83%
81%
RDD08 - 12S2U
18~36 VDC
8 WATTS
+ 12 VDC
670 mA
85%
83%
RDD08 - 15S2U
18~36 VDC
8.1 WATTS
+ 15 VDC
540 mA
85%
83%
RDD08 - 03S3U
35~75 VDC
6.6 WATTS
+3.3 VDC
2000 mA
80%
78%
RDD08 - 05S3U
35~75 VDC
7.5 WATTS
+ 5 VDC
1500 mA
83%
81%
RDD08 - 12S3U
35~75 VDC
8 WATTS
+ 12 VDC
670 mA
85%
83%
RDD08 - 15S3U
35~75 VDC
8.1 WATTS
+ 15 VDC
540 mA
85%
83%
Dual Output Models
RDD08 - 05D1U
9~18 VDC
8 WATTS
5 VDC
800 mA
82%
80%
RDD08 - 12D1U
9~18 VDC
8.1 WATTS
12 VDC
340 mA
85%
83%
RDD08 - 15D1U
9~18 VDC
8.1 WATTS
15 VDC
270 mA
85%
83%
RDD08 - 05D2U
18~36 VDC
8 WATTS
5 VDC
800 mA
83%
81%
RDD08 - 12D2U
18~36 VDC
8.1 WATTS
12 VDC
340 mA
85%
83%
RDD08 - 15D2U
18~36 VDC
8.1 WATTS
15 VDC
270 mA
85%
83%
RDD08 - 05D3U
35~75 VDC
8 WATTS
5 VDC
800 mA
83%
81%
RDD08 - 12D3U
35~75 VDC
8.1 WATTS
12 VDC
340 mA
85%
83%
RDD08 - 15D3U
35~75 VDC
8.1 WATTS
15 VDC
270 mA
85%
83%
www.chinfa.com
2007.05.11
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RDD08U SERIES
SINGLE & DUAL OUTPUT
CIRCUIT SCHEMATIC
Block diagram for RDD08U series with single output
Vi +
Vo +
Rectifier
Switching
Device
Vo -
Vi -
PWM
Controller
Opto Isolation
Reference &
Error Amp.
ON/OFF
Block diagram for RDD08U series with dual output
Vi +
Vo +
Rectifier
Switching
Device
com
Rectifier
Vi -
PWM
Controller
Opto Isolation
Vo -
Reference &
Error Amp.
ON/OFF
www.chinfa.com
2007.05.11
sales@chinfa.com
RDD08U SERIES
SINGLE & DUAL OUTPUT
SPECIFICATION
o
All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed
GENERAL
Characteristics
Switching frequency
Conditions
min.
Vi nom, Io nom
280
Input / Output
Isolation resistance
Input / Output, @ 500VDC
1G
Ambient temperature
Operating at Vi nom, Io nom
-40
Case temperature
Operating at Vi nom, Io nom
Vi nom
Storage temperature
Non operational
Dimension
L20.3 x W31.8 x H10.2
Cooling
Free air convection
Case material
Tinplate nickel plated
max.
unit
KHz
1,500
Isolation voltage
Derating
typ.
VDC
+ 71
o
+100
o
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
Conditions
Ta min ... Ta max, Io nom
Vi nom, Io = 0
Io nom
min.
typ.
9
12
18
VDC
18
48
24
36
VDC
35
48
75
VDC
12V models
30
mA
24V models
25
mA
48V models
20
mA
12V models
20
VDC
24V models
40
VDC
80
VDC
48V models
startup voltage
Input filter
Io nom
12V models
8.7
VDC
24V models
17.4
VDC
48V models
31.5
VDC
Pi type
OUTPUT SPECIFICATIONS
Characteristics
Conditions
Output voltage accuracy
Vi nom, Io nom
Minimum load
Vi nom
min.
typ.
max.
2
single output models
dual output models (each output)
unit
%
0
%
10
%
Line regulation
Io nom, Vi min ...Vi max
0.5
%
Load regulation
Vi nom, Io 0 ...Io nom, single output models
0.5
%
1
Vi nom, Io min ...Io nom, dual output models
Vi nom, Io nom=1
Temperature coefficient
Vi nom, Io nom
0.02
Ripple & noise
Vi nom, Io nom, BW = 20MHz
50
mV
3.3Vout models
3300
F
5.0Vout models
2200
12.0Vout models
470
15.0Vout models
330
5Vout models
1000
Efficiency
Vi nom, Io nom, Po / Pi
Capacitive Load
Io nom
1/2 lo nom
%
Transient recovery time
15Vout models
2007.05.11
% / oC
Up to 85%, See model list
12Vout models
www.chinfa.com
ms
1
180 sales@chinfa.com
100
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RDD08U SERIES
SINGLE & DUAL OUTPUT
CONTROL AND PROTECTION
Input reversed
Shunt diode built in, external fuse recommended
Output short circuit
Continuous
Rated over load protection
110%min....140%max
Remote on/off control
ON : 3....10Vdc or open circuit
OFF: 0....1.5Vdc or short circuit pin1 and pin2,3
APPROVALS AND STANDARD
UL/cUL
UL60950-1
TUV
EN60950-1
CE
EN61204-3(Class A for EMI)
MECHANISM & PIN CONFIGURATION
mm [inch]
31.75 [1.25]
20.32 [0.80]
12 3
9
11
16
14
15.24 [0.60]
23 22
10.2 [0.4]
DIA 0.50 [0.02]
2.54 [0.10]
5.08 [0.20]
BOTTOM VIEW
PHYSICAL CHARACTERISTICS
CASE SIZE
20.3 x 31.8 x 10.2 mm 0.8 x 1.25 x 0.4 inches
CASE MATERIAL
Tinplate nickel plated
WEIGHT
16 g
PIN ASSIGNMENT
GENERAL
PIN NO.
1
2&3
9
11
14
16
22 & 23
SINGLE
Remote On/Off
Vi -
N. C.
N. C.
Vo+
Vo -
Vi+
Vi -
com
Vo+
com
Vi+
DUAL
Remote On/Off
Vo -
DERATING
Power out [ % ]
100
NATURAL
CONVECTION
COOLING
0
-40
71
100
o
Ambient Temperature [ C ]
www.chinfa.com
2007.05.11
sales@chinfa.com