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Номер в каталоге
Компоненты Описание
MC33129D Просмотр технического описания (PDF) - Motorola => Freescale
Номер в каталоге
Компоненты Описание
производитель
MC33129D
High Performance Current Mode Controllers
Motorola => Freescale
MC33129D Datasheet PDF : 16 Pages
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Freescal
M
e
C
S
34
e
1
m
29
i
M
c
C
o
3
n
3
d
1
u
29
ctor, Inc.
12
CSoft–Start
7
6
RT
5
CT
4
Sync/Inhibit Input
Figure 18. Representative Block Diagram
VCC
1.0
µ
A
Fault Timer
VCC
2.5V Reference
+ 1.25V
–
R
R
Oscillator
32k
+
1.95V
PWM
Comparator
+
–
+
275mV
Latch
R
Q
S
+
–
Start/Run
Comparator
7.0V
Undervoltage
Lockout
+
VCC
3.6V
Start/Run
Output
13
14
VCC
14.3V
80
µ
A
1.25V
8
Reference
+
–
Soft–Start
Buffer
+
Error Amp
–
VCC
9 Noninverting
Input
10
Inverting
Input
Feedback/PWM
11
Input
1
Drive Output
2
Drive
Gnd
3
Ramp Input
Vin = 20V
Q1
RS
Sync/Inhibit Input
Capacitor CT
Latch
“Set” Input
Feedback/PWM Input
Ramp Input
Latch
“Reset” Input
Drive Output
20 V
Start/Run
Output
14.3 V
+
–
=
Sink Only
Positive True Logic
Figure 19. Timing Diagram
600
µ
s Delay
MOTOROLA ANALOG IC DEVICE
F
D
o
A
r
T
M
A
ore Information On This Product,
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