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TL494CD Datasheet(PDF) 6 Page - Motorola, Inc

Part # TL494CD
Description  SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT
PDF  12 Pages
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

TL494CD Datasheet(HTML) 6 Page - Motorola, Inc

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TL494
6
MOTOROLA ANALOG IC DEVICE DATA
Figure 4. Open Loop Voltage Gain and
Phase versus Frequency
Figure 5. Percent Deadtime versus
Oscillator Frequency
Figure 6. Percent Duty Cycle versus
Deadtime Control Voltage
1.0
10
100
1.0 k
10 k
100 k
1.0 M
f, FREQUENCY (Hz)
AVOL
0
20
40
60
80
100
120
140
160
180
φ
VCC = 15 V
∆VO = 3.0 V
RL = 2.0 kΩ
Figure 7. Emitter–Follower Configuration
Output Saturation Voltage versus
Emitter Current
500 k 1.0 k
10 k
100 k
500 k
fosc, OSCILLATOR FREQUENCY (Hz)
CT = 0.001 µF
0.001
µF
0
1.0
2.0
3.0
3.5
VDT, DEADTIME CONTROL VOLTAGE (IV)
VCC = 15 V
VOC = Vref
1. CT = 0.01 µF
2. RT = 10 kΩ
2. CT = 0.001 µF
2. RT = 30 kΩ
2
1
Figure 8. Common–Emitter Configuration
Output Saturation Voltage versus
Collector Current
0
100
200
300
400
IE, EMITTER CURRENT (mA)
0
100
200
300
400
IC, COLLECTOR CURRENT (mA)
Figure 9. Standby Supply Current
versus Supply Voltage
0
5.0
10
15
20
25
30
35
40
VCC, SUPPLY VOLTAGE (V)
120
110
100
90
80
70
60
50
40
30
20
10
0
20
18
16
14
12
10
8.0
6.0
4.0
2.0
0
50
40
30
20
10
0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
10
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0



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