TL1451A_15 Datasheet, PDF (11/36 Pages) Texas Instruments – DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS

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TL1451A
DUAL PULSEĆWIDTHĆMODULATION CONTROL CIRCUITS
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SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
TYPICAL CHARACTERISTICS
REFERENCE OUTPUT VOLTAGE VARIATION
vs
FREE-AIR TEMPERATURE
30
VCC = 3.6 V
II(ref) = 1 mA
20
REFERENCE OUTPUT VOLTAGE VARIATION
vs
FREE-AIR TEMPERATURE
30
VCC = 40 V
II(ref) = 1 mA
20
10
0
–10
– 20
ÁÁÁÁ_{– 30}
ÁÁÁÁ _–
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
25
0
25
50
75
TA – Free-Air Temperature – °C
100
Figure 7
10
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ₀
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _–10
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{– 20}
ÁÁÁÁ_{– 30}
ÁÁ _{– 25}
0
25
50
75
100
ÁÁ ^{TA – Free-Air Temperature – °C}
Figure 8
REFERENCE OUTPUT VOLTAGE
vs
SUPPLY VOLTAGE
3
TA = 25°C
2.5
DROPOUT VOLTAGE VARIATION
vs
FREE-TEMPERATURE
1.1
II(ref) = 1 mA
1
2
0.9
1.5
0.8
1
ÁÁÁÁÁÁ 0.5
0
0
5 10 15 20 25 30 35 40
VCC – Supply Voltage – V
Figure 9
0.7
0.6
– 25
0
25
50
75
100
TA – Free-Air Temperature – °C
Figure 10
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