TL494CN ON Semiconductor, TL494CN Datasheet - Page 8

• 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

Figure 10. Error−Amplifier Characteristics
Figure 12. Common−Emitter Configuration
V
in
Each
Output
Transistor
90%
V
10%
V
CC
ref
Test Circuit and Waveform
t
r
+
−
+
−
Q
Error Amplifier
Under Test
C
E
Other Error
Amplifier
15V
R
68
15pF
t
L
f
C
90%
L
V
10%
Feedback
C
Terminal
(Pin 3)
TL494, NCV494
http://onsemi.com
8
Inputs
Figure 11. Deadtime and Feedback Control Circuit
Test
Figure 13. Emitter−Follower Configuration
Gnd
50k
Each
Output
Transistor
10%
Test Circuit and Waveform
90%
V
CC
t
r
Deadtime
Feedback
R
C
(+)
(−)
(+)
(−)
Output
Control
T
T
= 15V
Q
Error
V
Gnd
CC
C
E
R
68
L
15V
Out
Ref
C2
E1
E2
C1
t
f
10%
15pF
C
V
150
90%
2W
L
EE
V
EE
150
2W
Output 2
Output 1