TL1451A
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS024E – FEBRUARY 1983 – REVISED NOVEMBER 1999
TYPICAL CHARACTERISTICS
OUTPUT SINK CURRENT
vs
COLLECTOR OUTPUT SATURATION VOLTAGE
120
110
100
90
T
A
= –20°C
T
A
= 25°C
T
A
= 85°C
80
70
60
50
40
30
20
10
0
V
CC
= 3.6 V
0
5
10
15
20
Collector Output Saturation Voltage – V
Figure 22
MAXIMUM OUTPUT VOLTAGE SWING
vs
FREE-AIR TEMPERATURE
V
V
V
V
V
V
V
–0.01
–0.02
–0.03
–0.04
–0.05
–0.06
–0.07
1
V
ref
O(ref)
O(ref)
O(ref)
O(ref)
O(ref)
O(ref)
O(ref)
33 kΩ
0.9
0.8
+
–
Maximum Output Voltage
Swing (Right Scale)
33 kΩ
R
L
0.7
0.6
0.5
100 kΩ
V
vom – 1
Maximum Output
Voltage Swing (Right Scale)
V
R
= 3.6 V
= 100 kΩ
CC
L
V
V
V
= 1.25 V
= 1.15 V (Right Scale)
= 1.35 V (Left Scale)
OM+1
OM –1
OM –1
TEST CIRCUIT
–25
0
25
50
75
100
T
A
– Free-Air Temperature – °C
Figure 23
19
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TI [ TEXAS INSTRUMENTS ]
