Datasheet

TL5001, TL5001A
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS084F – APRIL 1994 – REVISED JANUARY 2002
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 9
1
0.5
0
2
1.5
010203040
– Average Supply Current – mA
V
CC
– Power-Supply Voltage – V
R
t
= 100 kΩ
T
A
= 25 °C
AVERAGE SUPPLY CURRENT
vs
POWER-SUPPLY VOLTAGE
I
CC
Figure 10
1
0.9
0.8
0
– 50 – 25 0
– Average Supply Current – mA
1.1
1.2
1.3
25 50 75
100
T
A
– Ambient Temperature – °C
V
CC
= 6 V
R
t
= 100 kΩ
DT Resistance = 100 kΩ
I
CC
AVERAGE SUPPLY CURRENT
vs
AMBIENT TEMPERATURE
Figure 11
1.5
1.2
0.6
0.3
0
1.8
0.9
10 k 100 k 1 M 10 M
PWM Triangle Wave Amplitude Voltage – V
f
osc
– Oscillator Frequency – Hz
V
osc
min (zero duty cycle)
V
CC
= 6 V
T
A
= 25 °C
PWM TRIANGLE WAVE AMPLITUDE VOLTAGE
vs
OSCILLATOR FREQUENCY
V
osc
max (100% duty cycle)
Figure 12
ERROR AMPLIFIER OUTPUT VOLTAGE
vs
OUTPUT (SINK) CURRENT
– Error Amplifier Output Voltage – V
V
O
I
O
– Output (Sink) Current – mA
1.5
1
0.5
0
0 0.2 0.4
2
2.5
3
0.6
V
CC
= 6 V
V
I(FB)
= 1.2 V
T
A = 25 °C