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參數(shù)資料
| 型號(hào)： | TL1454Y |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
| 中文描述： | 雙通道脈寬調(diào)制（PWM）控制電路 |
| 文件頁(yè)數(shù)： | 13/24頁(yè) |
| 文件大?。?/td> | 390K |
| 代理商： | TL1454Y |
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TL1454, TL1454Y
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)
CONTROL CIRCUIT
SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
TYPICAL CHARACTERISTICS
Figure 6
100 k
10 k
1 k
OSCILLATOR FREQUENCY
vs
TIMING RESISTANCE
RT – Timing Resistance –
f
1 k
10 k
100 k
10 M
1 M
CT = 10 pF
CT = 120 pF
CT = 3900 pF
VCC = 6 V
TA = 25
°
C
CT = 1000 pF
CT = 300 pF
Figure 7
t
OSCILLATOR PERIOD
vs
TIMING CAPACITANCE
10–1
100
105
CT – Timing Capacitance – pF
s
μ
101
100
101
VCC = 6 V
RT = 5.1 k
TA = 25
°
C
102
102
103
104
Figure 8
o
f
510
500
490
480
520
OSCILLATOR FREQUENCY
vs
FREE-AIR TEMPERATURE
530
–50
0
50
100
TA – Free-Air Temperature –
°
C
VCC = 6 V
RT = 10 k
CT = 120 pF
Figure 9
1.5
1.4
1.3
1.2
1.1
1
0.5
2
P
PWM TRIANGLE WAVEFORM AMPLITUDE
vs
TIMING CAPACITANCE
100
101
102
103
Timing Capacitance – pF
104
VCC = 6 V
RT = 5.1 k
TA = 25
°
C
VO(min)
VO(max)
1.9
1.8
1.7
1.6
0.9
0.8
0.7
0.6
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