TL494 Ver la hoja de datos (PDF) - Fairchild Semiconductor
Número de pieza
componentes Descripción
Fabricante
TL494 Datasheet PDF : 8 Pages
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Electrical Characteristics
(VCC = 20V, f = 10KHz, TA = 0°C to + 70°C, unless otherwise specified)
Parameter
Symbol
REFERENCE SECTION
Reference Output Voltage
VREF
Line Regulation
∆VREF
Temperature Coefficient of VREF
∆VREF/∆T
Load Regulation
∆VREF
Short-Circuit Output Currnet
ISC
OSCILLATOR SECTION
Oscillation Frequency
f
Frequency Change with Temperature ∆f/∆T
DEAD TIME CONTROL SECTION
Input Bias Current
IBIAS
Maximum Duty Cycle
D(MAX)
Input Threshold Voltage
VITH
ERROR AMP SECTION
Input Offset Voltage
VIO
Input Offset Current
IIO
Input Bias Current
IBIAS
Common Mode Input Voltage
VCM
Open-Loop Voltage Gain
GVO
Unit-Gain Bandwidth
BW
PWM COMPARATOR SECTION
Input Threshold Voltage
VITH
Input Sink Currnet
ISINK
OUTPUT SECTION
Output Saturation Voltage
Common Emitter
VCE(SAT)
Common Collector
VCC(SAT)
Collector Off-State Currnet
IC(OFF)
Emitter Off-State Current
IE(OFF)
TOTAL DEVICE
Supply Current
ICC
OUTPUT SWITCHING CHARACTERISTIC
Rise Time
tR
Common Emitter
-
Common Collector
-
Fall Time
tF
Common Emitter
-
Common Collector
-
Conditions
IREF = 1mA
VCC = 7V to 40V
TA = 0°C to 70°C
IREF = 1mA to 10mA
VREF = 0V
CT = 0.01µF, RT = 12KΩ
CT = 0.01µF, RT = 12KΩ
VCC = 15V, 0V≤V4≤5.25V
VCC = 15V, V4 = 0V
O.C Pin = VREF
Zero Duty Cycle
Max. Duty Cycle
V3 = 2.5V
V3 = 2.5V
V3 = 2.5V
7V ≤ VCC ≤ 40V
0.5V ≤ V3 ≤3 .5V
-
Zero Duty Cycle
V3=0.7V
VE = 0, IC = 200mA
VC = 15V, IE = -200mA
VCC = 40V, VCE = 40V
VCC = VC = 40V, VE = 0
Pin 6 = VREF, VCC = 15V
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TL494
Min. Typ. Max. Unit
4.75 5.0 5.25 V
- 2.0 25 mV
- 0.01 0.03 %/°C
- 1.0 15 mV
10 35 50 mA
-
10
- KHz
-
-
2
%
- -2.0 -10 µA
45
-
-
%
- 3.0 3.3
V
0
-
-
- 2.0 10 mV
-
25 250 mA
- 0.2 1.0 µA
-0.3 - VCC V
70 95
-
dB
- 650 - KHz
-
4 4.5 V
-0.3 -0.7 - mV
- 1.1 1.3
V
- 1.5 2.5
-
2 100
µA
-
- -100
-
6 10 mA
-
-
-
-
- 100 200
ns
- 100 200
-
-
-
-
-
25 100
ns
-
40 100
3
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