TL5002CDRG4 Datasheet, PDF (8/18 Pages) Texas Instruments – PULSE-SIDTH-MODULATION CONTROL CIRCUIT

TL5002
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PULSEĆWIDTHĆMODULATION CONTROL CIRCUIT
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SLVS304A − SEPTEMBER 2000 − REVISED AUGUST 2002
TYPICAL CHARACTERISTICS
PWM TRIANGLE WAVE AMPLITUDE VOLTAGE
vs
OSCILLATOR FREQUENCY
1.8
VCC = 6 V
TA = 25 °C
1.5
Voscmax (100% duty cycle)
1.2
ERROR AMPLIFIER OUTPUT VOLTAGE
vs
OUTPUT (SINK) CURRENT
3
VCC = 6 V
VI(INV) = 1.2 V
2.5 ^{VI(NI) = 1 V}
TA _{= 25 °C}
2
1.5
0.9
Voscmin (zero duty cycle)
0.6
1
0.3
0.5
0
10 k
100 k
1M
10 M
fosc − Oscillator Frequency − Hz
Figure 8
ERROR AMPLIFIER OUTPUT VOLTAGE
vs
OUTPUT (SOURCE) CURRENT
3
2.5
2
0
0
0.2
0.4
0.6
IO − Output (Sink) Current − mA
Figure 9
ERROR AMPLIFIER OUTPUT VOLTAGE
vs
AMBIENT TEMPERATURE
2.46
VCC = 6 V
VI(INV) = 0.8 V
2.45 ^{VI(NI) = 1 V}
No Load
2.44
1.5
2.43
1
VCC = 6 V
0.5 ^{VI(INV) = 0.8 V}
VI(NI) = 1 V
TA = 25 °C
0
0
20
40
60
80
100 120
IO − Output (Source) Current − µA
Figure 10
2.42
2.41
2.40
− 50 − 25
0
25
50
75 100
TA − Ambient Temperature − °C
Figure 11
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