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TL494BDR2

P1-P3P4-P6P7-P9P10-P12P13-P14
L1 − 3.5 mH @ 0.3 A
T1 − Primary: 20T C.T. #28 AWG
T1 − Secondary: 12OT C.T. #36 AWG
T1 − Core: Ferroxcube 1408P−L00−3CB
TL494, NCV494
http://onsemi.com
10
Figure 18. Slaving Two or More Control Circuits Figure 19. Operation with V
in
> 40 V Using
External Zener
Figure 20. Pulse Width Modulated Push−Pull Converter
R
T
C
T
6
5
V
ref
R
T
C
T
Master
V
ref
Slave
(Additional
Circuits)
R
T
C
T
5
6
V
in
> 40V
R
S
V
Z
= 39V
1N975A
V
CC
5.0V
Ref
12
270
Gnd
7
+V
in
= 8.0V to 20V
1
2
3
15
16
+
−
−
+
Comp
OC V
REF
DT C
T
R
T
Gnd E
1
E
2
13144567910
1M
33k
0.01
0.01
V
CC
C
1
C
2
8
11
47
47
10
+
10k
4.7k
4.7k
15k
Tip
32
+
T
1
1N4934
L
1
1N4934
240
+
50
35V
4.7k
1.0
22
k
+
+V
O
= 28 V
I
O
= 0.2 A
12
All capacitors in mF
TL494
0.001
50
35V
50
25V
Tip
32
Test Conditions Results
Line Regulation V
in
= 10 V to 40 V 14 mV 0.28%
Load Regulation V
in
= 28 V, I
O
= 1.0 mA to 1.0 A 3.0 mV 0.06%
Output Ripple V
in
= 28 V, I
O
= 1.0 A 65 mV pp P.A.R.D.
Short Circuit Current
V
in
= 28 V, R
L
= 0.1 W
1.6 A
Efficiency V
in
= 28 V, I
O
= 1.0 A 71%
TL494, NCV494
http://onsemi.com
11
Figure 21. Pulse Width Modulated Step−Down Converter
+V
in
= 10V to 40V
Tip 32A
1.0mH @ 2A
+V
O
= 5.0 V
I
O
= 1.0 A
50
10V
+
5.1k
MR850
0.1
150
5.1k 5.1k
47k
1.0M
0.1
3
2
1
14
15
16
Comp
−
+
−
V
ref
+
V
CC
C
1
C
2
50
50V
0.001
564137910
C
T
R
T
D.T. O.C. Gnd E
1
E
2
+
47k
+
500
10V
150
47
11
12
8
TL494
Test Conditions Results
Line Regulation V
in
= 8.0 V to 40 V 3.0 mV 0.01%
Load Regulation V
in
= 12.6 V, I
O
= 0.2 mA to 200 mA 5.0 mV 0.02%
Output Ripple V
in
= 12.6 V, I
O
= 200 mA 40 mV pp P.A.R.D.
Short Circuit Current
V
in
= 12.6 V, R
L
= 0.1 W
250 mA
Efficiency V
in
= 12.6 V, I
O
= 200 mA 72%
TL494, NCV494
http://onsemi.com
12
PACKAGE DIMENSIONS
SOIC−16
D SUFFIX
CASE 751B−05
ISSUE J
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
18
16 9
SEATING
PLANE
F
J
M
R
X 45
_
G
8 PLP
−B−
−A−
M
0.25 (0.010) B
S
−T−
D
K
C
16 PL
S
B
M
0.25 (0.010) A
S
T
DIM MIN MAX MIN MAX
INCHESMILLIMETERS
A 9.80 10.00 0.386 0.393
B 3.80 4.00 0.150 0.157
C 1.35 1.75 0.054 0.068
D 0.35 0.49 0.014 0.019
F 0.40 1.25 0.016 0.049
G 1.27 BSC 0.050 BSC
J 0.19 0.25 0.008 0.009
K 0.10 0.25 0.004 0.009
M 0 7 0 7
P 5.80 6.20 0.229 0.244
R 0.25 0.50 0.010 0.019
____
P1-P3P4-P6P7-P9P10-P12P13-P14

TL494BDR2

Mfr. #:
Buy TL494BDR2
Manufacturer:
ON Semiconductor
Description:
Switching Controllers 40kHz 200mA PWM
Lifecycle:
New from this manufacturer.
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