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參數(shù)資料
| 型號： | TL1454AY |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A DUAL SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, UUC16 |
| 封裝： | DIE-16 |
| 文件頁數(shù)： | 5/25頁 |
| 文件大小： | 503K |
| 代理商： | TL1454AY |
TL1454A, TL1454AY
DUALCHANNEL PULSEWIDTHMODULATION (PWM)
CONTROL CIRCUIT
SLVS423 A MAY 2002 REVISED SEPTEMBER 2002
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 6
100 k
10 k
1 k
OSCILLATOR FREQUENCY
vs
TIMING RESISTANCE
RT Timing Resistance
f
Oscillator
Frequency
Hz
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
Oscillation
Period
OSCILLATOR PERIOD
vs
TIMING CAPACITANCE
10 1
10 0
10 5
CT Timing Capacitance pF
s
10 1
10 0
10 1
VCC = 6 V
RT = 5.1 k
TA = 25°C
10 2
10 3
10 4
Figure 8
Oscillator
Frequency
kHz
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
oscf
Figure 9
1.5
1
0.5
2
PWM
T
riangle
W
aveform
Amplitude
V
PWM TRIANGLE WAVEFORM AMPLITUDE
vs
TIMING CAPACITANCE
10 0
10 1
10 2
10 3
Timing Capacitance pF
10 4
VCC = 6 V
RT = 5.1 k
TA = 25°C
VO(min)
VO(max)
1.9
1.8
1.7
1.6
1.4
1.3
1.2
1.1
0.9
0.8
0.7
0.6
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| TL1454CD | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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| TL1454CPW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM) CONTROL CIRCUIT |
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