參數資料
型號： LH1901-2RD6
廠商： POWER-ONE INC
元件分類： 電源模塊
英文描述： 1-OUTPUT 72 W AC-DC REG PWR SUPPLY MODULE
封裝： ROHS COMPLIANT PACKAGE-32/11
文件頁數： 16/21頁
文件大?。?/td> 984K
代理商： LH1901-2RD6
H Series Data Sheet
70 Watt AC-DC Converters
BCD20019 Rev AA
Page 4 of 21
www.power-one.com
Fig. 1
Block diagram of a triple-output model.
Input
filter
Current
limitation
output 3
Main control circuit
Current
limitation
output 2
29
11
8
23
5
26
32
17
14
20
2
Forward
converter
approx.
70
kHz
4
C
Y
C
Y
14
17
i
D, V
R
G
N
L
2
3
03084a
1
1 Input fuse
2 Transient suppressor
3 Inrush current limiter (NTC)
4 Adjust input for single-output models with feature R.
Electrical Input Data
General conditions:
– TA = 25 °C, unless TC is specified.
– Connector pins 2 and 23 interconnected, R input not connected; with option P: Vo = Vo nom
Table 2: Input data
Input
LM
Unit
Characteristics
Conditions
min
typ
max
Vi
Operating input voltage Io = 0 – Io nom
85
255
VAC1
Vi nom Nominal input voltage
TC min – TC max
230
Ii
Input current
Vi nom, Io = Io nom 2
0.44
A
Pi 0
No-load input power:
Vi nom
Single-output model
Io1,2,3 = 0
1
2.5
W
Double-output model
7
9
Triple-output model
7
9
Pi inh
Idle input power
inhibit mode
2.5
Iinr p 5 Peak inrush current
Vi = Vi max
42 4
A
t inr r
Rise time
RS = 0 3
300
s
t inr h
Time to half-value
TC = 25 °C
1600
R i
Input resistance
TC = 25 °C
800
m
R NTC NTC resistance
8000 4
Ci
Input capacitance
140
270
F
Vi abs Input voltage limits
0
284
VAC
without any damage
1 Frequency 47 – 63 Hz
2 With multiple-output models, the same
condition for each output applies.
3 RS = source resistance.
4 Value for initial switch-on cycle.
5 Iinr p = Vi /(Rs + Ri + RNTC ); see Inrush
Current
.
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