TL494CN ON Semiconductor, TL494CN Datasheet - Page 9

• Manufacturer Part Number: TL494CN
• Description: IC PWM VM 16DIP
• Manufacturer: ON Semiconductor
• Series: SWITCHMODE™r

Specifications of TL494CN

• Pwm Type: Voltage Mode
• Number Of Outputs: 1
• Frequency - Max: 200kHz
• Duty Cycle: 50%
• Voltage - Supply: 7 V ~ 40 V
• Buck: No
• Boost: No
• Flyback: No
• Inverting: No
• Doubler: No
• Divider: No
• Cuk: No
• Isolated: No
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 16-DIP (0.300", 7.62mm)
• Frequency-max: 200kHz
• Topology: Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
• Output Voltage: 40 V
• Output Current: 200 mA
• Switching Frequency: 300 KHz
• Duty Cycle (max): 45 %
• Operating Supply Voltage: 15 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Fall Time: 40 ns
• Mounting Style: Through Hole
• Rise Time: 100 ns
• Synchronous Pin: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: TL494CNOS

0 ≤ V
OC
V
ref
Control
Output
≤ 0.4 V
Output
Figure 15. Deadtime Control Circuit
Max. % on Time, each output ≈ 45 −
R1
R2
Control
Output
Q
30k
Single−Ended
Figure 17. Output Connections for Single−Ended and Push−Pull Configurations
V
6
1
2
R
O
T
To Output
Voltage of
System
+
−
Error
5
Q
Amp
V
Q
C
V
2
ref
1
Positive Output Voltage
T
O
= V
0.001
D
C
E
C
E
ref
T
1
1
2
2
Figure 14. Error−Amplifier Sensing Techniques
4
1 +
1 +
80
R
R
R1
R2
R
R
1
2
3
1
2
TL494, NCV494
http://onsemi.com
1.0 mA to
500 mA
Q
Q
E
C
9
Output
2.4 V ≤ V
Control
Output
OC
Q
Negative Output Voltage
≤ V
Figure 16. Soft−Start Circuit
V
ref
O
= V
Error
Amp
ref
+
−
Push−Pull
R
R
1
2
V
ref
1
2
D
T
Q
Q
1
2
4
C
E
C
E
R1
1
2
1
2
Voltage of
To Output
System
V
R
ref
S
R2
V
O
1.0 mA to
250 mA
1.0 mA to
250 mA
C
S