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參數(shù)資料
| 型號： | ML4823IQ |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High Frequency Power Supply Controller |
| 中文描述： | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封裝： | PLASTIC, LCC-20 |
| 文件頁數(shù)： | 6/9頁 |
| 文件大?。?/td> | 121K |
| 代理商： | ML4823IQ |
ML4823
6
REV. 1.0 10/12/2000
ERROR AMPLIFIER
The ML4823 error amplifier is a 5.5MHz bandwidth 12V/μs
slew rate op-amp with provision for limiting the positive
output voltage swing (Output Inhibit line) for ease in
implementing the soft start function.
5
4
3
2
1
0
0.2
0.4
0.6
0.8
1.0
TIME (
μ
s)
V
IN
V
OUT
100
80
60
40
20
0
–20
100
1K
10K
100K
FREQ (Hz)
1M
10M
100M
0
0
–90
–180
GAIN
φ
Figure 5. Unity Gain Slew Rate
Figure 6. Open Loop Frequency Response
OUTPUT DRIVER STAGE
The ML4823 Output Driver is a 2A peak output high speed
totem pole circuit designed to quickly switch the gates of
capacitive loads, such as power MOSFET transistors.
Figure 8. Saturation Curves
3
2
1
0
0
0.5
1.0
1.5
I
OUT
(A)
V
S
(
SOURCE
SINK
Figure 7. Simplified Schematic
POWER
GND
Q1
Q2
OUT
V
CC
POWER
V
C
15
10
5
0
0
40
80
120
160
200
TIME (ns)
T
O
0.2
I
L
(A)
0
–0.2
15
10
5
0
0
100
200
300
400
500
TIME (ns)
T
O
2
I
L
(A)
0
–2
Figure 10 Rise/Fall Time (C
L
= 10,000pF)
Figure 9. Rise/Fall Time (C
L
= 1000pF)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ML4823CP | High Frequency Power Supply Controller |
| ML4823CQ | High Frequency Power Supply Controller |
| ML4823CS | High Frequency Power Supply Controller |
| ML4823IS | High Frequency Power Supply Controller |
| ML4823MJ | High Frequency Power Supply Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4823IS | 功能描述:電流型 PWM 控制器 Pwr Spply Controller High Frequency RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ML4823ISX | 功能描述:電流型 PWM 控制器 Pwr Spply Controller High Frequency RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ML4823MJ | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:High Frequency Power Supply Controller |
| ML4824 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Power Factor Correction and PWM Controller Combo |
| ML4824_03 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Power Factor Correction and PWM Controller Combo |
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