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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： | 6/25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
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
TYPICAL CHARACTERISTICS
Figure 10
1
0.8
0.6
0.4
DTC
Input
Threshold
V
oltage
–
V
1.2
1.4
DTC INPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
TA – Free-Air Temperature – °C
0
50
100
–50
VCC = 6 V
RT = 5.1 k
CT = 1000 pF
VIT (0% Duty Cycle)
VIT (100% Duty Cycle)
Figure 11
–
SCP
T
ime-Out
Period
–
s
SCP TIME-OUT PERIOD
vs
SCP CAPACITANCE
SCP Capacitance –
F
SCPt
1
0.5
0
5
10
15
1.5
2
20
25
VCC = 6 V
TA = 25°C
Figure 12
1
0.98
0.96
0.94
–
SCP
Threshold
V
oltage
–
V
1.02
SCP THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
1.04
0
50
100
V
IT
TA – Free-Air Temperature – °C
–50
VCC = 6 V
Figure 13
2
1.5
1
–
SCP
Latch
Reset
V
oltage
–
V
2.5
3
SCP LATCH RESET VOLTAGE
vs
FREE-AIR TEMPERATURE
3.5
V
I(reset)
TA – Free-Air Temperature – °C
– 25
0
25
50
75
100
–50
VCC = 6 V
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