TL494
Electrical Characteristics
(V
CC
= 20V, f = 10KHz, T
A
= 0°C to + 70°C, unless otherwise specified)
Parameter
REFERENCE SECTION
Reference Output Voltage
Line Regulation
Temperature Coefficient of V
REF
Load Regulation
Short-Circuit Output Currnet
OSCILLATOR SECTION
Oscillation Frequency
Frequency Change with Temperature
DEAD TIME CONTROL SECTION
Input Bias Current
Maximum Duty Cycle
Input Threshold Voltage
ERROR AMP SECTION
Input Offset Voltage
Input Offset Current
Input Bias Current
Common Mode Input Voltage
Open-Loop Voltage Gain
Unit-Gain Bandwidth
PWM COMPARATOR SECTION
Input Threshold Voltage
Input Sink Currnet
OUTPUT SECTION
Output Saturation Voltage
Common Emitter
Common Collector
Collector Off-State Currnet
Emitter Off-State Current
TOTAL DEVICE
Supply Current
Rise Time
Common Emitter
Common Collector
Fall Time
Common Emitter
Common Collector
I
CC
t
R
-
-
t
F
-
-
Pin 6 = V
REF
, V
CC
= 15V
-
-
-
-
-
-
-
-
-
-
-
-
-
6
-
100
100
-
25
40
10
-
200
200
-
100
100
mA
-
ns
-
ns
OUTPUT SWITCHING CHARACTERISTIC
V
CE(SAT)
V
CC(SAT)
I
C(OFF)
I
E(OFF)
V
E
= 0, I
C
= 200mA
V
C
= 15V, I
E
= -200mA
V
CC
= 40V, V
CE
= 40V
V
CC
= V
C
= 40V, V
E
= 0
-
-
-
-
1.1
1.5
2
-
1.3
2.5
100
-100
V
µA
V
ITH
I
SINK
Zero Duty Cycle
V
3
=0.7V
-
-0.3
4
-0.7
4.5
-
V
mV
V
IO
I
IO
I
BIAS
V
CM
G
VO
BW
V
3
= 2.5V
V
3
= 2.5V
V
3
= 2.5V
7V
≤
V
CC
≤
40V
0.5V
≤
V
3
≤3
.5V
-
-
-
-
-0.3
70
-
2.0
25
0.2
-
95
650
10
250
1.0
V
CC
-
-
mV
mA
µA
V
dB
KHz
I
BIAS
D
(MAX)
V
ITH
V
CC
= 15V, 0V≤V
4
≤5.25V
V
CC
= 15V, V
4
= 0V
O.C Pin = V
REF
Zero Duty Cycle
Max. Duty Cycle
-
45
-
0
-2.0
-
3.0
-
-10
-
3.3
-
µA
%
V
f
∆f/∆T
C
T
= 0.01µF, R
T
= 12KΩ
C
T
= 0.01µF, R
T
= 12KΩ
-
-
10
-
-
2
KHz
%
V
REF
∆V
REF
∆V
REF
/∆T
∆V
REF
I
SC
I
REF
= 1mA
V
CC
= 7V to 40V
T
A
= 0°C to 70°C
I
REF
= 1mA to 10mA
V
REF
= 0V
4.75
-
-
-
10
5.0
2.0
0.01
1.0
35
5.25
25
0.03
15
50
V
mV
%/°C
mV
mA
Symbol
Conditions
Min.
Typ.
Max.
Unit
3
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
