参数资料
型号: TL494ING
厂商: ON Semiconductor
文件页数: 8/14页
文件大小: 0K
描述: IC REG CTRLR PWM VM 16-DIP
标准包装: 500
系列: SWITCHMODE™
PWM 型: 电压模式
输出数: 1
频率 - 最大: 200kHz
占空比: 50%
电源电压: 7 V ~ 40 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 16-DIP(0.300",7.62mm)
包装: 管件
其它名称: TL494INGOS
TL494, NCV494
V CC = 15V
150
150
V CC
2W
2W
V in
+
?
Error Amplifier
Under Test
Feedback
Terminal
Test
Inputs
Deadtime
Feedback
R T
C T
(+)
C1
E1
C2
E2
Output 1
Output 2
(Pin 3)
(?)
(+)
Error
V ref
+
?
Other Error
Amplifier
50k
(?)
Output
Control
Gnd
Ref
Out
Figure 10. Error?Amplifier Characteristics
15V
Figure 11. Deadtime and Feedback Control Circuit
R L
68
C
15V
C
V C
Each
Output
Q
Each
Output
Transistor
Q
E
C L
15pF
Transistor
E
R L
68
C L
15pF
V EE
90%
V CC
10%
90%
10%
Gnd
10%
90%
90%
V EE
10%
t r
t f
t r
t f
Figure 12. Common?Emitter Configuration
Test Circuit and Waveform
Figure 13. Emitter?Follower Configuration
Test Circuit and Waveform
http://onsemi.com
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