TL5001 Datasheet, PDF (15/23 Pages) Texas Instruments – PULSE-WIDTH-MODULATION CONTROL CIRCUITS

TL5001, TL5001A
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS084E – APRIL 1994 – REVISED OCTOBER 1999
TYPICAL CHARACTERISTICS
ERROR AMPLIFIER OUTPUT VOLTAGE
vs
OUTPUT (SOURCE) CURRENT
3
VCC = 6 V
VI(FB) = 0.8 V
2.5 ^{TA = 25 °C}
ERROR AMPLIFIER OUTPUT VOLTAGE
vs
AMBIENT TEMPERATURE
2.46
VCC = 6 V
VI(FB) = 0.8 V
2.45 ^{No Load}
2
2.44
1.5
2.43
1
2.42
0.5
2.41
0
0
20
40
60
80
100 120
IO – Output (Source) Current – µA
Figure 13
ERROR AMPLIFIER OUTPUT VOLTAGE
vs
AMBIENT TEMPERATURE
240
VCC = 6 V
VI(FB) = 1.2 V
220 ^{No Load}
2.40
– 50 – 25
0
25
50
75
100
TA – Ambient Temperature – °C
Figure 14
ERROR AMPLIFIER CLOSED-LOOP GAIN AND
PHASE SHIFT
vs
OSCILLATOR FREQUENCY
40
VCC = 6 V
– 180°
TA = 25 °C
30
– 210°
200
20
– 240°
AV
180
10
– 270°
160
140
120
– 50 – 25
0
25
50
75 100
TA – Ambient Temperature – °C
Figure 15
0
– 10
– 20
10 k
φ
100 k
1M
fosc – Oscillator Frequency – Hz
Figure 16
– 300°
– 330°
– 360°
10 M
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