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L6730 Datasheet(PDF) 27 Page - STMicroelectronics

Part # L6730
Description  Adjustable step-down controller with synchronous rectification
PDF  52 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6730 Datasheet(HTML) 27 Page - STMicroelectronics

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L6730 - L6730B
Device description
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5.10
Multifunction pin (S/O/U L6730) (CC/O/U L6730B)
With this pin it is possible:
●
to enable disable the sink mode current capability (L6730) or the constant current
protection (L6730B) at the end of the soft-start.
●
to enable or disable the latch-mode for the OVP.
●
to set the UVLO threshold for 5V BUS and 12V Busses.
Table 6 shows how to set the different options through an external resistor divider:
Figure 22. External Resistor
Table 6.
S/O/U and CC/O/U pin
R1
R2
VSOU/VCCDR
UVLO
OVP
SINK CC
N.C
0
Ω
0
5V BUS
Not Latched
Not
11K
Ω
2.7K
Ω
0.2
5V BUS
Not Latched
Yes
6.2K
Ω
2.7K
Ω
0.3
5V BUS
Latched
Not
4.3K
Ω
2.7K
Ω
0.4
5V BUS
Latched
Yes
2.7K
Ω
2.7K
Ω
0.5
12V BUS
Not Latched
Not
1.8K
Ω
2.7K
Ω
0.6
12V BUS
Not Latched
Yes
1.2K
Ω
2.7K
Ω
0.7
12V BUS
Latched
Not
0
Ω
N.C
1
12V BUS
Latched
Yes
R1
R2
L6730/B
S/O/U
CC/O/U
VCCDR



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