参数资料
型号: MC33129P
厂商: MOTOROLA INC
元件分类: 稳压器
英文描述: HIGH PERFORMANCE CURRENT MODE CONTROLLERS
中文描述: 1 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDIP14
封装: PLASTIC, DIP-14
文件页数: 9/16页
文件大小: 347K
代理商: MC33129P
MC34129 MC33129
9
MOTOROLA ANALOG IC DEVICE DATA
Figure 18. Representative Block Diagram
Figure 19. Timing Diagram
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+
+
+
+
+
+
+
+
Start/Run
Output
Vin = 20V
VCC
1.95V
Start/Run
Comparator
7.0V
13
12
1.0
μ
A
Fault Timer
Undervoltage
Lockout
14
VCC
VCC
CSoft–Start
PWM
Comparator
VCC
80
μ
A
3.6V
14.3V
8
1.25V
Reference
2.5V Reference
275mV
9 Noninverting
Input
10Inverting
Input
Feedback/PWM
Input
7
6
1.25V
Error Amp
R
Soft–Start
Buffer
VCC
11
RT
R
Latch
Q1
1Drive Output
5
Oscillator
R
Q
S
2
Drive
Gnd
CT
4
Sync/Inhibit Input
32k
3
Ramp Input
RS
=Positive True Logic
3
1
2
Sync/Inhibit Input
Capacitor CT
Latch
“Set” Input
Feedback/PWM Input
Ramp Input
Latch
“Reset” Input
Drive Output
Start/Run
Output
20 V
14.3 V
600
μ
s Delay
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