DRA18 SERIES
IND. CONT. EQ.
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25 C Unless Otherwise Noticed
o
OUTPUT SPECIFICATIONS
Characteristics
Output voltage accuracy
Minimum load
Line regulation
Load regulation
Transient recovery time
Temperature coefficient
Ripple & noise
Hold up time
Voltage trim range
DC ON indicator
threshold at start up
Vi nom
Io nom, Vi min ...Vi max
Vi nom, Io min ...Io nom
50% load step changed
Vi nom, Io min
Vi nom, Io nom,BW = 20MHz
Io nom
Vi nom, Io nom
Vi nom, Io nom
Vi = 115VAC
Vi = 230VAC
5V ...15V models
24V model
5V model
12V model
15V model
24V model
DC LOW indicator
threshold after start up
Vi nom, Io nom
5V model
12V model
15V model
24V model
Efficiency
Vi nom, Io nom, Po / Pi
20
75
- 10
- 10
4.5
10.8
13.5
21.6
3.75
9
11.25
18
Up to 77%, See model list
4.5
10.8
13.5
21.6
+ 15
+ 20
300
0.02
50
o
Conditions
Vi nom, Io min ...Io nom
min.
0
typ.
max.
1
1
2
unit
%
%
%
%
S
% / C
mV
ms
ms
%
%
VDC
VDC
VDC
VDC
VDC
VDC
VDC
VDC
CONTROL AND PROTECTION
Characteristics
Input fuse
Rated over load protection
Over voltage protection
Output short circuit
Vi nom
Vi nom, Io nom
Vi nom, Io nom
110
125
Hiccup mode
Conditions
min.
typ.
max.
140
145
unit
%
%
T2A / 250VAC internal
APPROVALS AND STANDARDS
UL / cUL
TUV
CE
UL508 Listed
UL60950-1, UL1310 Class 2 Power Supply Recognized
EN60950-1
EN61000-6-3 / EN55022 Class B, EN61000-3-2 , EN61000-3-3
EN61000-6-2 / EN55024 / EN61204-3
CIRCUIT SCHEMATIC
Block diagram for DRA18 series
L
Fuse
Inrush Current
Switching
Limiter and
Device
Rectifier
Vo +
Rectifier
Line
Filter
N
Y
Current
Detection
Vo -
Control
Opto -
Isolation
Opto -
Isolation
Reference &
Error Amp.
Over Voltage
Detection
Output Level
Detection
Vout
ADJ.
www.chinfa.com
2008.08.19
DC ON
(Green LED)
DC LOW
(Red LED)
sales@chinfa.com
CHINFA [ CHINFA ELECTRONICS IND. CO., LTD. ]
