TL1454A_14 Datasheet, PDF (17/25 Pages) Texas Instruments – DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT

TL1454A, TL1454AY
DUALĆCHANNEL PULSEĆWIDTHĆMODULATION (PWM)
CONTROL CIRCUIT
SLVS423 A− MAY 2002 − REVISED SEPTEMBER 2002
TYPICAL CHARACTERISTICS
ERROR-AMPLIFIER POSITIVE OUTPUT
VOLTAGE SWING
vs
FREE-AIR TEMPERATURE
2.5
VCC = 6 V
No Load
Amplifier 1
2.45
2.4
ÁÁ_2.35
ÁÁÁÁ ^−50
− 25
0
25
50
75
TA − Free-Air Temperature − °C
100
Figure 21
HIGH-LEVEL OUTPUT VOLTAGE
vs
OUTPUT CURRENT
6
VCC = 6 V
TA = 25°C
5
HIGH-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
5.5
VCC = 6 V
5
IO = 8 mA
4
4.5
IO = 40 mA
3
4
2
3.5
1
0
20
40
60
80
IO − Output Current − mA
Figure 22
3
−50 −25
0
25
50
75 100
TA − Free-Air Temperature − °C
Figure 23
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