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| TL494 Datasheet, PDF (6/6 Pages) Motorola, Inc – SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT | |||
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Pulse-Width-Modulation Control Circuits
TL494
Switching characteristics, T A = 25 oC
PARAMETER
TEST CONDITIONS
Output voltage rise time
Common-emitter configuration
Output voltage fall time
Output voltage rise time
Emitter-follower configuration
Output voltage fall time
* All typical values except for temperature coefficient are at T A = 25oC
MIN.
TYP*
100
25
100
40
MAX. UNIT
200
100 ns
200
100
tosc - R T
500
100
10 k
1.0 k
500
1.0 k
5.0 k 20 k 50 k 200 500 1.0
TIMING RESISTANCET(RΩ)
VCE(sat) - I C
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4 0
100
200
300
COLLECTOR CURRENT Ic
()
10
ICC - V CC
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0
0 5.0 10 15 20 25 30 35 40
SUPPLY VOLTAGE Vcc (V)
100
90
80
70
60
50
40
30
20
10
0
1.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
0
Vcc=15V
VO=3.0V
0
RL=2.0ã
20
40
60
80
100
120
140
160
180
10 100 1.0k 10k 100k 1.0M
FREQUENCY f(Hz)
VCE - I E
100
200
300
EMITTER CURRENT IE (mA)
Mar. 2006-Rev06
150
HTC
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