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參數(shù)資料
| 型號： | TC33025VOETR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 6/18頁 |
| 文件大?。?/td> | 416K |
| 代理商： | TC33025VOETR |
TC33025
14
TC33025-1 5/25/00
High Speed Double Ended Controller
–55
–25
0
25
50
75
100
125
A
VOL
,OPEN
LOOP
VOLTAGE
GAIN
(dB)
f OSC
,OSCILLATOR
FREQUENCY
(kHz)
Figure 22. Timing Resistor versus
Oscillator Frequency
100
1000
104
105
106
107
fOSC, OSCILLATOR FREQUENCY (Hz)
Figure 23. Oscillator Frequency versus Temperature
TA, AMBIENT TEMPERATURE (C)
–55
–25
0
25
50
75
100
125
TA, AMBIENT TEMPERATURE (C)
Figure 24. Error Amp Open Loop Gain and
Phase versus Frequency
10
100
1.0k
10k
100k
1.0M
10M
f, FREQUENCY (Hz)
Figure 25. PWM Comparator Zero Duty Cycle
Threshold Voltage versus Temperature
Figure 26. Error Amp Small Signal
Transient Response
Figure 27. Error Amp Large Signal
Transient Response
R
T
,TIMING
RESISTOR
(
‰
)
0
45
90
135
θ,
EXCESS
PHASE
(
C)
V
th
,ZERO
DUTY
CYCLE
(V)
0.1
sec/DIV
0.1
sec/DIV
1.3
1.28
1.26
1.24
1.22
1.2
100k
10k
1.0k
470
1200
1000
800
600
400
200
120
100
80
60
40
20
0
–20
0
2.55V
2.5V
2.45V
3.0V
2.5V
2.0V
Gain
Phase
1
CT =
1. 100nF
2. 47nF
3. 22nF
4. 10nF
5. 4.7nF
6. 2.2nF
7. 1.0nF
8. 470pF
9. 220pF
RT = 1.2k
CT = 1.0nF
RT = 3.6k
CT = 1.0nF
RT = 36k
CT = 1.0nF
2
3
4
5
6
7
8
9
VCC = 15V
Pin 7 (9) = 0V
50kHz
400kHz
1.0MHz
VCC=15V
TA=+25C
TYPICAL CHARACTERISTICS
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