TL284xB, TL384xB
HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
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SLVS610A–AUGUST 2006–REVISED SEPTEMBER 2006
TYPICAL CHARACTERISTICS
ERROR AMPLIFIER OPEN-LOOP
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
GAIN AND PHASE
vs
FREQUENCY
100
80
60
40
20
0
200
150
100
50
25
20
15
10
5
Phase
0
Gain
VCC = 15 V
RL = 100 kkXΩ
TA = 25°C
-50
-100
-20
0
1 .
E
+0 1
1 .
E
+0 2
1 .
E
+0 3
1 .
E
+0 4
1 .
E
+0 5
1 .
E
+0 6
1 . E +0 7
10
100
1k
10k 100k 1M
10M
0
5
10
15
20
25
30
35
40
f – Frequency – Hz
VCC – Supply Voltage – V
CURRENT-SENSE INPUT THRESHOLD
vs
ERROR AMPLIFIER OUTPUT VOLTAGE
OSCILLATOR DISCHARGE CURRENT
vs
TEMPERATURE
1.2
1
9.2
9
VIN = 15 V
VIN = 15 V
VOSC = 2 V
8.8
8.6
8.4
8.2
8
0.8
0.6
0.4
0.2
0
TA = 125°C
TA = 25°C
TA = -55°C
7.8
7.6
7.4
0
1
2
3
4
5
6
7
8
-55 -35 -15
5
25 45 65 85 105 125 145
A – Temperature – °C
V
O – Error Amplifier Output Voltage – V
T
8
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