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40IMX35D12D05-8-IZ View Datasheet(PDF) - Power-One Inc.

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40IMX35D12D05-8-IZ
Power-One
Power-One Inc. Power-One
40IMX35D12D05-8-IZ Datasheet PDF : 15 Pages
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IMX35 Series Data Sheet
35 Watt Quad-Output DC-DC Converters
®
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)
Model
Trigger level
Hysteresis
Unit
20IMX35
7 to 8
<0.5
V
40IMX35
14 to 15.5
<1
70IMX35
31 to 34
<3
110IMX35
42 to 50
<8
The undervoltage lockout levels may be programmed by using
an external resistor RPUL between PUL and Vi – to increase the
preset levels as specified in table 10.
Table 10: Typical values for RPUL and the respective lockout
voltage for input voltage.
20 IMX35
R PUL [kW]
Vi min [V]
8
39
10
19
12
13
14
9.1
16
40 IMX35
R PUL [kW]
Vi min [V]
15.5
43
22
16
26
10
28
0
32
70 IMX35
R PUL [kW]
Vi min [V]
31
270
40
110
50
80
55
110 IMX35
R PUL [kW]
Vi min [V]
42
270
50
120
60
51
75
BCD20009-G Rev AC, 06-May-2013
Page 10 of 15
 

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