参数资料
型号: NCV494BDR2G
厂商: ON Semiconductor
文件页数: 7/14页
文件大小: 0K
描述: IC REG CTRLR PWM VM 16-SOIC
标准包装: 1
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 ~ 125°C
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
包装: 剪切带 (CT)
其它名称: NCV494BDR2GOSCT
TL494, NCV494
120
20
110
100
90
80
70
A VOL
V CC = 15 V
D V O = 3.0 V
R L = 2.0 k W
0
20
40
18
16
14
12
C T = 0.001 m F
60
60
10
50
40
30
20
10
φ
80
100
120
140
160
8.0
6.0
4.0
2.0
0.001 m F
0
1.0
10
100 1.0 k 10 k
180
100 k 1.0 M
0
500 k 1.0 k
10 k 100 k
500 k
50
f, FREQUENCY (Hz)
Figure 4. Open Loop Voltage Gain and
Phase versus Frequency
1.9
f osc , OSCILLATOR FREQUENCY (Hz)
Figure 5. Percent Deadtime versus
Oscillator Frequency
40
30
2
1
V CC = 15 V
V OC = V ref
1. C T = 0.01 m F
2. R T = 10 k W
2. C T = 0.001 m F
2. R T = 30 k W
1.8
1.7
1.6
1.5
20
10
1.4
1.3
1.2
0
0
1.0
2.0
3.0
3.5
1.1
0
100
200 300
400
1.0
2.0
1.6
1.4
1.2
1.8
0.8
0.6
0.4
V DT , DEADTIME CONTROL VOLTAGE (IV)
Figure 6. Percent Duty Cycle versus
Deadtime Control Voltage
10
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0
I E, EMITTER CURRENT (mA)
Figure 7. Emitter?Follower Configuration
Output Saturation Voltage versus
Emitter Current
0
100 200 300
400
0
5.0
10
15
20
25
30
35
40
I C , COLLECTOR CURRENT (mA)
Figure 8. Common?Emitter Configuration
Output Saturation Voltage versus
Collector Current
http://onsemi.com
7
V CC , SUPPLY VOLTAGE (V)
Figure 9. Standby Supply Current
versus Supply Voltage
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