поискавой системы для электроныых деталей
Selected language     Russian  ▼

Delete All
ON OFF
ALLDATASHEETRU.COM

X  

Preview PDF Download HTML

S-19213 датащит (PDF) 22 Page - ABLIC Inc.

№ деталь S-19213
подробность  AUTOMOTIVE, 125°C OPERATION, 36 V INPUT, 500 mA VOLTAGE REGULATOR
скачать  46 Pages
Scroll/Zoom Zoom In 100% Zoom Out
производитель  ABLIC [ABLIC Inc.]
домашняя страница  https://www.ablic.com
Logo 

S-19213 Datasheet(HTML) 22 Page - ABLIC Inc.

Zoom Inzoom in Zoom Outzoom out
 22 / 46 page
background image
AUTOMOTIVE, 125°C OPERATION, 36 V INPUT, 500 mA VOLTAGE REGULATOR
S-19213 Series
Rev.1.1_00
22
9. Type in which output voltage is externally set
The S-19213 Series provides the type in which output voltage can be set via the external resistor. The output
voltage can be set by connecting a resistor (Ra) between the VOUT pin and the VADJ pin, and a resistor (Rb)
between the VADJ pin and the VSS pin.
The output voltage is determined by the following formulas.
VOUT = 1.8
+ Ra × la ···················· (1)
By substituting Ia = IVADJ
+ 1.8 / Rb to above formula (1),
VOUT = 1.8
+ Ra × (IVADJ + 1.8 / Rb) = 1.8 × (1.0 + Ra / Rb) + Ra × IVADJ ······· (2)
In above formula (2), Ra
× IVADJ is a factor for the output voltage error.
Whether the output voltage error is minute is judged depending on the following (3) formula.
By substituting IVADJ = 1.8 / RVADJ to Ra
× IVADJ
VOUT = 1.8
× (1.0 + Ra / Rb) + 1.8 × Ra / RVADJ ················ (3)
If RVADJ is sufficiently larger than Ra, the error is judged as minute.
VOUT
VSS
VIN
VADJ
VOUT
Ra
Rb
Ia
Ib
RVADJ
IVADJ
1.8 V
Figure 23
The following expression is in order to determine VOUT = 20.0 V.
If Rb = 10 k
Ω, substitute RVADJ = 26 MΩ typ. into (3),
Ra = (20.0 / 1.8
− 1) × ((10 k × 26 M) / (10 k + 26 M)) ≅ 101 kΩ
Caution The above connection diagram and constants will not guarantee successful operation. Perform
thorough evaluation using the actual application to set the constants.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46 


датащит скачать




ссылки URL



Privacy Policy
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |  реклама   |   контакт   |   Конфиденциальность    |   закладка   |   обмен ссыками   |   поиск по производителю
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn