參數(shù)資料
型號(hào)： LMZ1601-7R
廠商： POWER-ONE INC
元件分類： 電源模塊
英文描述： 1-OUTPUT 50 W AC-DC REG PWR SUPPLY MODULE
文件頁(yè)數(shù)： 13/26頁(yè)
文件大?。?/td> 771K
代理商： LMZ1601-7R
M Series Data Sheet
50 Watt DC-DC and AC-DC Converters
BCD20018 Rev AB
Page 20 of 26
www.power-one.com
Fig. 19
Typical inrush current waveforms of CM, EM, and LM
converters with option E
Precautions:
In order to avoid overload of the series resistor RI, the on/off
switching cycle should be limited to 12 s, if switched on/off
continuously. There should not be more than 10 start-up cycles
within 20 s at a case temperature of 25 °C.
If
CM
models
are
driven
by
input
voltages
below
35 VDC or LM models below 100 VAC, the maximum case
temperature should be derated by 10 °C, or the total output
power should be derated by 20%. EM and LM models driven
Table 19: Inrush current characteristics with option E
Characteristic
CM
EM, LM
Unit
at Vi = 110 VDC
at Vi = 372 VDC
typ
max
typ
max
typ
max
Iinr p
Peak inrush current
6.5
8
2.2
4
7.3
10
A
tinr
Inrush current duration
22
30
10
20
40
ms
10
8
6
4
2
0
10
20
30
40
t [ms]
Ii [A]
tinr
Normal operation:
FET fully conducting
Ii = Po/(Vi η)
11019a
tinr
CM at 110 VDC
EM, LM at 372 VDC
EM, LM at 110 VDC
by DC input voltages do not need to be derated within the full
specified input voltage range.
F Fuse Not Accessible
Standard M converter have a fuseholder containing a 5 × 20
mm fuse, which is externally accessible and located in the
back plate near to the connector. Some applications require an
inaccessible fuse. Option F provides a fuse mounted directly
onto the main PCB inside the case.
The full self-protecting functions of the converter do normally
not lead to a broken fuse, except as a result of inverse polarity
at the input of an AM, BM, CM, or FM models, or if a power
component inside fails. In such cases the defective converter
has to be returned to Power-One for repair.
H Enhanced Electric Strenght Test
Electric strength test output to case; see table Isolation.
D Undervoltage Monitor
The input and/or output undervoltage monitor operates
independently of the built-in input undervoltage lock-out circuit.
A logic "low" (JFET output) or "high" signal (NPN output) is
generated at pin 5, when one of the monitored voltages drops
below the preselected threshold level Vt. The return for this
signal is Vo1– (pin 23). The D output recovers, when the
monitored voltage(s) exceed(s) Vt + Vh. The threshold level Vt
is either adjustable by a potentiometer accessible through a
hole in the front cover, or adjusted in the factory to a fixed value
specified by the customer.
Option D exists in various versions D0 – D9, as shown in table
20.
Table 20: Undervoltage monitor functions
Output type
Monitoring
Minimum adjustment range
Typical hysteresis Vh [% of Vt]
JFET
NPN
Vi
Vo1
of threshold level Vt
for Vt min – Vt max
Vti
Vto
Vhi
Vho
D1
D5
no
yes
–
3.5 V – 48 V 1
–
2.3 – 1
D2
D6
yes
no
Vi min – Vi max 1–
3.0 – 0.5
–
D3
D7
yes
Vi min – Vi max 1
0.95 – 0.98 Vo1 2
3.0 – 0.5
"0"
D4
D8
no
yes
–
0.95 – 0.98 Vo1 2
–
"0"
D0
D9
no
yes
–
3.5 V – 48 V 3
–
1.8 – 1
yes
no
Vi min – Vi max 3 4
–
2.2 – 0.4
–
yes
Vi min – Vi max 3 4
0.95 – 0.98 Vo1 2
2.2 – 0.4
"0"
1 Threshold level adjustable by potentiometer (not recommended for mobile applications)
2 Fixed value between 95% and 98% of Vo1 (tracking)
3 Fixed value, resistor-adjusted according to customer's specifications ±2% at 25 °C; individual type number is determined by Power-One
4 Adjusted at Io nom
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