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UCC29421 датащи(PDF) 28 Page - Texas Instruments

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номер детали UCC29421
подробное описание детали  Multimode High Frequency PWM Controller
PDF  35 Pages
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производитель  TI [Texas Instruments]
домашняя страница  http://www.ti.com
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UCC29421 датащи(HTML) 28 Page - Texas Instruments

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UCC29421, UCC29422, UCC39421, UCC39422
MULTIMODE HIGHFREQUENCY PWM CONTROLLER
SLUS246C − OCTOBER 1999 − REVISED FEBRUARY 2005
28
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
APPLICATION INFORMATION
UCC39422 features (continued)
UDG−99034
2
4
3
5
6
8
7
9
19
17
18
16
15
13
14
12
1 k
0.1
µF
R
SLOPE
ISENSE
VOUT
RSEN
VGRECT
PGND
CHRG
VPUMP
CP
RSEL
RT
GND
PFM
FB
COMP
SYNC/SD
UCC39422
C
POLE
R
COMP
C
COMP
RT
100 k
L1
+C
IN
0.1
µF
RG
RG
+ C OUT
V
IN
+V
OUT
10
VIN
1
RESET* (ACTIVE LOW)
0.1
µF
R1
250 k
+V
IN
C
RESET
RSETB
Q1 (N)
R
SENSE
20
RSADJ
Q1 (P)
11
VDET
LOWBAT (ACTIVE HIGH)
47 pF
R2
150 k
THRESHOLD = 2.0 V
+V
IN
LOWBAT
Figure 18. Typical UCC39422 Application



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