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TL494CNS Datasheet(PDF) 5 Page - Texas Instruments

Part # TL494CNS
Description  PULSE-WIDTH-MODULATION CONTROL CIRCUITS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TL494CNS Datasheet(HTML) 5 Page - Texas Instruments

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Electrical Characteristics
Output Section
Dead-Time Control Section
PWM Comparator Section
Total Device
Switching Characteristics
TL494
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS074E – JANUARY 1983 – REVISED FEBRUARY 2005
over recommended operating free-air temperature range, VCC = 15 V, f = 10 kHz (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP(1)
MAX
UNIT
Collector off-state current
VCE = 40 V, VCC = 40 V
2
100
µA
Emitter off-state current
VCC = VC = 40 V, VE = 0
–100
µA
Common emitter
VE = 0, IC = 200 mA
1.1
1.3
Collector-emitter saturation voltage
V
Emitter follower
VO(C1 or C2) = 15 V, IE = –200 mA
1.5
2.5
Output control input current
VI = Vref
3.5
mA
(1)
All typical values, except for temperature coefficient, are at TA = 25°C.
See Figure 1
PARAMETER
TEST CONDITIONS
MIN TYP(1)
MAX
UNIT
Input bias current (DEAD-TIME CTRL)
VI = 0 to 5.25 V
–2
–10
µA
VI (DEAD-TIME CTRL) = 0, CT = 0.01 µF,
Maximum duty cycle, each output
45
%
RT = 12 kΩ
Zero duty cycle
3
3.3
Input threshold voltage (DEAD-TIME CTRL)
V
Maximum duty cycle
0
(1)
All typical values, except for temperature coefficient, are at TA = 25°C.
See Figure 1
PARAMETER
TEST CONDITIONS
MIN TYP(1)
MAX
UNIT
Input threshold voltage (FEEDBACK)
Zero duty cyle
4
4.5
V
Input sink current (FEEDBACK)
V (FEEDBACK) = 0.7 V
0.3
0.7
mA
(1)
All typical values, except for temperature coefficient, are at TA = 25°C.
PARAMETER
TEST CONDITIONS
MIN TYP(1)
MAX
UNIT
VCC = 15 V
6
10
RT = Vref,
Standby supply current
mA
All other inputs and outputs open
VCC = 40 V
9
15
Average supply current
VI (DEAD-TIME CTRL) = 2 V, See Figure 1
7.5
mA
(1)
All typical values, except for temperature coefficient, are at TA = 25°C.
T
A = 25°C
PARAMETER
TEST CONDITIONS
MIN TYP(1)
MAX
UNIT
Rise time
100
200
ns
Common-emitter configuration, See Figure 3
Fall time
25
100
ns
Rise time
100
200
ns
Emitter-follower configuration, See Figure 4
Fall time
40
100
ns
(1)
All typical values, except for temperature coefficient, are at TA = 25°C.
5


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