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L4990 데이터시트(PDF) 20 Page - STMicroelectronics

부품명 L4990
상세설명  PRIMARY CONTROLLER
PDF  24 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4990 데이터시트(HTML) 20 Page - STMicroelectronics

Back Button L4990 Datasheet HTML 16Page - STMicroelectronics L4990 Datasheet HTML 17Page - STMicroelectronics L4990 Datasheet HTML 18Page - STMicroelectronics L4990 Datasheet HTML 19Page - STMicroelectronics L4990 Datasheet HTML 20Page - STMicroelectronics L4990 Datasheet HTML 21Page - STMicroelectronics L4990 Datasheet HTML 22Page - STMicroelectronics L4990 Datasheet HTML 23Page - STMicroelectronics L4990 Datasheet HTML 24Page - STMicroelectronics  
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L4990
COMP
D97IN508
TL431
V
OUT
VFB
6
5
Figure 37. Feedback with optocoupler
L4990
OPTIONAL
D97IN509A
I
VREF
SGND
RT
CT
RCT
RSLOPE
RSENSE
ISEN
L4990
OPTIONAL
I
VREF
SGND
RT
CT
RCT
RSLOPE
RSENSE
ISEN
L4990
OPTIONAL
OUT
SGND
R
R
RSLOPE
RSENSE
ISEN
CSLOPE
4
2
13
12
4
2
13
12
13
12
10
Figure 38. Slope compensation techniques
Figure 39. Protection against overvoltage/feedbackdisconnection (latched)
L4990
D97IN510
SGND
DIS
VCC
RSTART
PGND
8
14
12
11
L4990
D98IN904
SGND
DIS
VCC
RSTART
PGND
8
14
12
11
VZ
2.2K
L4990 - L4990A
20/24



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