Datasheet

TL5001, TL5001A
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS084F – APRIL 1994 – REVISED JANUARY 2002
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 5
100 k
10 k
1 M
10 k 100 k 1 M
f
V
CC
= 6 V
DT Resistance = R
t
T
A
= 25°C
R
t
– Timing Resistance – Ω
OSCILLATOR FREQUENCY
vs
TIMING RESISTANCE
– Oscillator Frequency – Hz
osc
Figure 6
94
92
90
88
– 50 – 25 0
96
98
100
25 50 75 100
T
A
– Ambient Temperature – °C
OSCILLATION FREQUENCY
vs
AMBIENT TEMPERATURE
f – Oscillation Frequency – kHz
osc
V
CC
= 6 V
R
t
= 100 kΩ
DT Resistance = 100 kΩ
Figure 7
REFERENCE OUTPUT VOLTAGE
vs
POWER-SUPPLY VOLTAGE
– Reference Output Voltage – VV
ref
V
CC
– Power-Supply Voltage – V
1
0.8
0.4
0.2
0
1.8
0.6
0123456
1.4
1.2
1.6
2
78910
T
A
= 25°C
FB and COMP
Connected Together
Figure 8
– Reference Output Voltage Fluctuation – %
T
A
– Ambient Temperature – °C
∆V
ref
REFERENCE OUTPUT VOLTAGE FLUCTUATION
vs
AMBIENT TEMPERATURE
– 0.2
– 0.4
– 0.8
– 50 – 25 0
0.2
0.4
0.6
25 50 75 100
0
V
CC
= 6 V
FB and COMP
Connected Together
– 0.6