參數(shù)資料
型號(hào): TL1454CN
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, PDIP16
封裝: PLASTIC, DIP-16
文件頁(yè)數(shù): 8/25頁(yè)
文件大?。?/td> 412K
代理商: TL1454CN
TL1454, TL1454Y
DUAL-CHANNEL PULSE-WIDTH-MODULATION (PWM)
CONTROL CIRCUIT
SLVS086B – APRIL 1995 – REVISED NOVEMBER 1997
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
TYPICAL CHARACTERISTICS
Figure 18
1
0.5
0
1.5
1 k
10 k
100 k
1M
10 M
100 M
Error
Amplifier
Maximum
Peak-to-Peak
f – Frequency – Hz
ERROR AMPLIFIER MAXIMUM
PEAK-TO-PEAK OUTPUT VOLTAGE SWING
vs
FREQUENCY
V
O(PP)
VCC = 6 V
TA = 25°C
Output
V
oltage
Swing
V
2
2.5
Figure 19
0.4
0.3
Error-Ampplifier
Minimum
Output
V
oltage
Swing
V
0.5
ERROR-AMPLIFIER MINIMUM OUTPUT
VOLTAGE SWING
vs
FREE-AIR TEMPERATURE
0.6
V
OM+
TA – Free-Air Temperature – °C
– 25
0
25
50
75
100
–50
VCC = 6 V
No Load
Amplifier 1
0.7
0.8
–20
100
1 k
10 k
100 k
1M
10 M
Error
Amplifier
Open-Loop
Gain
dB
f – Frequency – Hz
ERROR AMPLIFIER OPEN-LOOP GAIN AND PHASE SHIFT
vs
FREQUENCY
0
20
40
60
80
– 180
°
– 144
°
– 108
°
–72
°
–36
°
–0
°
Phase
Shift
VCC = 6 V
TA = 25°C
Gain
Phase Shift
Figure 20
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