參數(shù)資料
型號(hào): MC33365
廠商: ON SEMICONDUCTOR
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Isolated Flyback Switching Regulator with 9V Output
中文描述: 隔離反激式開關(guān)穩(wěn)壓9V輸出
文件頁數(shù): 7/12頁
文件大小: 233K
代理商: MC33365
MC33365
7
MOTOROLA ANALOG IC DEVICE DATA
Figure 16. Representative Block Diagram
Oscillator
PWM
PWM Latch
Current Limit
Comparator
Thermal
Shutdown
Error
Amplifier
Startup
Control
Band Gap
Regulator
UVLO
14.5 V/
9.5 V
BOK
1.25 V
Current
Mirror
2.6 V
Regulator Output
6.5 V
R
C
8
6
7
4, 5, 12, 13
Gnd
11
16
Power Switch
Drain
9
10
1
Voltage
Feedback Input
Compensation
AC Input
DC Output
2.25 I
I
8.1
R
S
Q
Driver
3
Startup Input
405
T
T
Leading Edge
Blanking
4 I
270
μ
A
VCC
Comparator
Figure 17. Timing Diagram
Capacitor C
Compensation
PWM
Comparator
Output
Oscillator Output
PWM Latch
Q Output
Power Switch
Gate Drive
Leading Edge
Blanking Input
(Power Switch
Drain Current)
Normal PWM Operating Range
Output Overload
Current
Limit
Threshold
0.6 V
2.6 V
Current Limit
Propagation
Delay
T
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