TL1454CPW Datasheet, PDF (19/25 Pages) Texas Instruments – DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TL1454, TL1454Y
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)
CONTROL CIRCUIT
SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997
TYPICAL CHARACTERISTICS
STANDBY SUPPLY CURRENT
vs
SUPPLY VOLTAGE
6
VCC = 6 V
RT = Open
CT = 1.5 V
5 _{COMP1, COMP2 = 1.25 V}
No Load
TA = 25°C
4
STANDBY SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
6
VCC = 6 V
CT = 1.5 V
RT = Open
5 _{COMP1, COMP2 = 1.25 V}
No Load
4
3
3
2
2
1
0
5
10
15
20
25
VCC – Supply Voltage – V
Figure 28
REFERENCE VOLTAGE
vs
SUPPLY VOLTAGE
1.5
TA = 25°C
1
1
– 50
0
50
100
TA – Free-Air Temperature – °C
Figure 29
REFERENCE VOLTAGE
vs
SUPPLY VOLTAGE
1.26
IO = 1 mA
TA = 25°C
1.25
0.5
1.24
0
0
5
10
15
20
25
VCC – Supply Voltage – V
Figure 30
1.23
0
5
10
15
20
25
VCC – Supply Voltage – V
Figure 31
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