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參數資料
| 型號： | TL1454CN |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 1 A DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數： | 10/25頁 |
| 文件大小： | 412K |
| 代理商： | TL1454CN |
TL1454, TL1454Y
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)
CONTROL CIRCUIT
SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997
18
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
TYPICAL CHARACTERISTICS
Figure 24
4
3
2
1
5
LOW-LEVEL OUTPUT VOLTAGE
vs
LOW-LEVEL OUTPUT CURRENT
6
020
40
60
80
IOL – Low-Level Output Current – mA
–
Low-Level
Output
V
oltage
–
V
OL
VCC = 6 V
TA = 25°C
Figure 25
100
50
0
150
200
LOW-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
250
TA – Free-Air Temperature – °C
– 25
0
25
50
75
100
–50
VCC = 6 V
IO = 8 mA
–
Low-Level
Output
V
oltage
–
mV
V
OL
Figure 26
1.5
1
0.5
2
2.5
LOW-LEVEL OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
3
TA – Free-Air Temperature – °C
– 25
0
25
50
75
100
–50
VCC = 6 V
IO = 40 mA
–
Low-Level
Output
V
oltage
–
V
OL
Figure 27
4
3
2
1
5
AVERAGE SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
6
– 50
– 25
0
25
50
75
TA – Free-Air Temperature – °C
–
A
verage
Supply
Current
–
mA
I CC(a)
VCC = 6 V
RT = 10 k
CT = 1.5 V
COMP1, COMP2 = 1.25 V
No Load
100
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