参数资料
型号: 20IMX35D12D12-8
厂商: Power-One
文件页数: 10/15页
文件大小: 0K
描述: CONVERT DC/DC 4X 12V 35W
标准包装: 5
系列: *
IMX35 Series Data Sheet
?
Progr. Input Undervoltage Lockout PUL
A special feature of the converters (with Rev. BA or later) is the
adjustable undervoltage lockout protection, which protects
the converter (and the system) from high current caused by
operation at low input voltages. This ensures easier start-up
in distributed power systems.
The table below shows the band of switch on/off and the
hysteresis.
Table 9: Trigger level and hysteresis (pin 1 left open)
35 Watt Quad-Output DC-DC Converters
Model
20IMX35
40IMX35
70IMX35
110IMX35
Trigger level
7 to 8
14 to 15.5
31 to 34
42 to 50
Hysteresis
<0.5
<1
<3
<8
Unit
V
The undervoltage lockout levels may be programmed by using
an external resistor R PUL between PUL and Vi – to increase the
preset levels as specified in table 10.
Table 10: Typical values for R PUL and the respective lockout
voltage for input voltage.
20 IMX35
40 IMX35
R PUL [kW]
39
19
13
9.1
V i min [V]
≤ 8
10
12
14
16
R PUL [kW]
43
16
10
0
V i min [V]
≤ 15.5
22
26
28
32
70 IMX35
110 IMX35
R PUL [kW]
270
110
80
V i min [V]
31
40
50
55
R PUL [kW]
270
120
51
V i min [V]
42
50
60
75
BCD20009-G Rev AC, 06-May-2013
Page 10 of 15
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