TL494ING ON Semiconductor, TL494ING Datasheet - Page 10

• Manufacturer Part Number: TL494ING
• Description: IC PWM VM 16DIP
• Manufacturer: ON Semiconductor
• Series: SWITCHMODE™r

Specifications of TL494ING

• 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: -40°C ~ 85°C
• Package / Case: 16-DIP (0.300", 7.62mm)
• Frequency-max: 200kHz
• Topology: Push-Pull
• Output Current: 500 mA
• Switching Frequency: 200 KHz
• Duty Cycle (max): 48 %
• Operating Supply Voltage: 15 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Fall Time: 40 ns
• Mounting Style: Through Hole
• Rise Time: 100 ns
• Synchronous Pin: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: TL494INGOS

+V
0.01 0.01
in
R
Figure 18. Slaving Two or More Control Circuits
T
= 8.0V to 20V
33k
1M
Line Regulation
Load Regulation
Output Ripple
Short Circuit Current
Efficiency
15
16
1
2
3
C
4.7k
T
+
−
Comp
−
+
4.7k
Test
13
OC V
6
5
6
5
14
REF
R
C
R
C
10k
+
T
T
T
T
10
Figure 20. Pulse Width Modulated Push−Pull Converter
4
V
DT
ref
V
ref
0.001
V
V
V
V
V
5
C
in
in
in
in
in
TL494
T
= 10 V to 40 V
= 28 V, I
= 28 V, I
= 28 V, R
= 28 V, I
6
R
T
15k
12
Conditions
Master
Slave
(Additional
Circuits)
7
Gnd
V
O
O
O
L
CC
All capacitors in mF
= 1.0 mA to 1.0 A
= 1.0 A
= 1.0 A
= 0.1 W
9
E
TL494, NCV494
http://onsemi.com
1
10
E
2
10
C
C
1
2
8
11
14 mV 0.28%
3.0 mV 0.06%
65 mV pp P.A.R.D.
1.6 A
71%
V
in
47
47
> 40V
Figure 19. Operation with V
Tip
32
Tip
Results
32
R
S
25V
50
+
T
1
External Zener
1N4934
1N4934
L
1
V
Z
T1 − Primary: 20T C.T. #28 AWG
T1 −
T1 −
L1 − 3.5 mH @ 0.3 A
= 39V
1N975A
Secondary: 12OT C.T. #36 AWG
Core: Ferroxcube 1408P−L00−3CB
240
270
+
in
> 40 V Using
35V
50
1.0
Gnd
V
12
7
CC
4.7k
22
k
+V
I
O
+
5.0V
O
Ref
= 0.2 A
= 28 V
35V
50