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參數(shù)資料
| 型號： | ML4823 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | High Frequency PWM Controller(高頻PWM控制器) |
| 中文描述： | 高頻PWM控制器（高頻脈寬調(diào)制控制器） |
| 文件頁數(shù)： | 3/9頁 |
| 文件大小： | 121K |
| 代理商： | ML4823 |
ML4823
REV. 1.0 10/12/2000
3
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which
the device could be permanently damaged. Absolute
maximum ratings are stress ratings only and functional
device operation is not implied.
Supply Voltage (V
C
, V
CC
)...........................................30V
OUTPUT Current, Source or Sink
DC .......................................................................0.5A
Pulse (0.5μs) .........................................................2.0A
Analog Inputs
(INV, NI, RAMP, SS, I
LIM
).................. GND –0.3V to 6V
CLOCK OUTPUT Current ...................................... –5mA
F/A OUT Current ......................................................5mA
SOFT START Sink Current.......................................20mA
R
T
Charging Current ............................................... –5mA
OPERATING CONDITIONS
Temperature Range
ML4823C ..................................................0°C to 70°C
ML4823I................................................–40°C to 85°C
Junction Temperature ............................................ 125°C
Storage Temperature Range .....................–65°C to 150°C
Lead Temperature (Soldering 10 sec.) .................... 260°C
Thermal Resistance (
θ
JA
)
Plastic DIP .......................................................80°C/W
Plastic SOIC...................................................105°C/W
Plastic Chip Carrier (PLCC) ..............................78°C/W
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, R
T
= 3.65k
, C
T
= 1000pF, T
A
= Operating Temperature Range, V
CC
= 15V. (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OSCILLATOR
Initial Accuracy
T
J
= 25°C,
10V
≤
V
CC
≤
30V,
360
400
440
kHz
Voltage Stability
0.2
2
%
Temperature Stability
5
%
Total Variation
Line, temp.
340
460
kHz
Clock Out High
3.9
4.5
V
Clock Out Low
2.3
2.9
V
Ramp Peak
2.6
2.8
3.0
V
Ramp Valley
0.7
1.0
1.25
V
Ramp Valley to Peak
1.6
1.8
2.0
V
REFERENCE
Output Voltage
T
J
= 25°C, I
O
= 1mA
10V
≤
V
CC
≤
30V
1mA
≤
I
O
≤
10mA
–40°C
≤
T
J
≤
150°C,
Line, load, temp.
5.025
5.10
5.175
V
Line Regulation
2
20
mV
Load Regulation
5
20
mV
Temperature Stability
0.2
0.4
%
Total Variation
4.975
5.225
V
Output Noise Voltage
10Hz to 10kHz
50
μV
Long Term Stability
T
J
= 125°C, 1000 hrs,
V
REF
= 0V
5
25
mV
Short Circuit Current
–15
–50
–100
mA
ERROR AMPLIFIER
Input Offset Voltage
±30
mV
Input Bias Current
0.6
3
μA
Input Offset Current
0.1
1
μA
Open Loop Gain
1
≤
V
O
≤
4V
50
95
dB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ML4823IQ | High Frequency Power Supply Controller |
| ML4823CP | High Frequency Power Supply Controller |
| ML4823CQ | High Frequency Power Supply Controller |
| ML4823CS | High Frequency Power Supply Controller |
| ML4823IS | High Frequency Power Supply Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4823CP | 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 |
| ML4823CP_Q | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Pwr Spply Controller High Frequency RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ML4823CQ | 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 |
| ML4823CQX | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ML4823CS | 功能描述:電流型 PWM 控制器 1MHZ SMPS Controller 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 |
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