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L99VR02XP bảng dữ liệu(PDF) 24 Page - STMicroelectronics

tên linh kiện L99VR02XP
Giải thích chi tiết về linh kiện  Dual automotive linear voltage regulator with configurable output voltage (2x250 mA current capability)
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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L99VR02XP bảng dữ liệu(HTML) 24 Page - STMicroelectronics

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Figure 41. Ishort versus Rsh
0
50
100
150
200
250
300
350
400
0
100
200
300
400
500
600
700
800
Rsh[KΩ]
-40 C
25 C
150 C
Open pins (no resistance on the Ishort_LDO1,2 pins), is seen as a max resistance corresponding to the maximum
Ishort current.
4.3
Output voltage selection
The L99VR02XP can provide one out of 8 different output voltages for each of the two outputs. The combination
of three digital input selectors (SELx_LDOy) determines the output voltage according to the following truth table.
Table 16. Truth table
VO_LDO1,2
SEL1_LDOY
SEL2_LDOY
SEL3_LDOY
5
1
1
1
3.3
1
1
0
2.8
1
0
1
2.5
1
0
0
1.8
0
1
1
1.5
0
1
0
1.2
0
0
1
0.8 (Default)
0
0
0
The SELx_LDOy pins configuration is acquired at the device startup (EN_LDO1,2 from low to high) and once
configuration is acknowledged, it cannot be changed until the next EN_LDO1,2 transition.
When all the pins are left not connected, the default configuration is selected.
L99VR02XP
Application information
DS14686 - Rev 1
page 24/50



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