TL494CN ON Semiconductor, TL494CN Datasheet - Page 5
![IC PWM VM 16DIP](/photos/6/54/65493/16-dip_648_sml.jpg)
TL494CN
Manufacturer Part Number
TL494CN
Description
IC PWM VM 16DIP
Manufacturer
ON Semiconductor
Series
SWITCHMODE™r
Datasheet
1.TL494CDR2G.pdf
(14 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TL494CN
Manufacturer:
TI/德州仪器
Quantity:
20 000
Company:
Part Number:
TL494CN/UPC494C
Manufacturer:
TI/NEC/KIA
Quantity:
5 510
Part Number:
TL494CNG
Manufacturer:
TI/德州仪器
Quantity:
20 000
Part Number:
TL494CNSR
Manufacturer:
TI/德州仪器
Quantity:
20 000
R
T
Deadtime
Control
Feedback/PWM Comp.
C
T
Deadtime Control
4
6
5
Capacitor C
Error Amp
1
Clock Input
1
Output Q1
Output Q2
Flip−Flop
Flip−Flop
Flip−Flop
2
Control
Emitter
Emitter
Output
T
+
−
1
Q
Q
0.7mA
Oscillator
0.12V
0.7V
Comparator Input
Feedback PWM
3
Figure 1. Representative Block Diagram
−
+
−
+
Deadtime
Comparator
This device contains 46 active transistors.
PWM
Comparator
Figure 2. Timing Diagram
2
−
+
TL494, NCV494
http://onsemi.com
15
Error Amp
2
16
5
Lockout
UV
D
Ck
Flip−
Flop
Q
Q
3.5V
−
+
−
+
Output Control
Output
4.9V
Ref.
14
13
Reference
Regulator
7
Gnd
Q1
Q2
8
9
11
10
12
V
CC
V
CC