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參數(shù)資料
| 型號： | LM3524DMWC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.2 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, UUC |
| 封裝： | WAFER |
| 文件頁數(shù)： | 14/22頁 |
| 文件大?。?/td> | 728K |
| 代理商： | LM3524DMWC |
National P/N LM3524D - Regulating Pulse Width Modulator
LM3524DMX
NARROW 16
Full production
N/A
1K+ $0.4500
reel
of
2500
[logo]UZ2T
LM3524DM
LM3524DN
16 MSL
Full production
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1K+ $0.4500
rail
of
25
[logo]UZ3TP
LM3524DN
LM3524D
MDC
Full
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N/A Samples
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LM3524D
MWC
Full
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General Description
The LM3524D family is an improved version of the industry standard LM3524. It has improved specifications
and additional features yet is pin for pin compatible with existing 3524 families. New features reduce the
need for additional external circuitry often required in the original version.
The LM3524D has a ±1% precision 5V reference. The current carrying capability of the output drive
transistors has been raised to 200 mA while reducing VCEsat and increasing VCE breakdown to 60V. The
common mode voltage range of the error-amp has been raised to 5.5V to eliminate the need for a resistive
divider from the 5V reference.
In the LM3524D the circuit bias line has been isolated from the shut-down pin. This prevents the oscillator
pulse amplitude and frequency from being disturbed by shut-down. Also at high frequencies
([Approximately_Equals]300 kHz) the max. duty cycle per output has been improved to 44% compared to
35% max. duty cycle in other 3524s.
In addition, the LM3524D can now be synchronized externally, through pin 3. Also a latch has been added to
insure one pulse per period even in noisy environments. The LM3524D includes double pulse suppression
logic that insures when a shut-down condition is removed the state of the T-flip-flop will change only after
the first clock pulse has arrived. This feature prevents the same output from being pulsed twice in a row,
thus reducing the possibility of core saturation in push-pull designs.
Features
q
Fully interchangeable with standard LM3524 family
q
±1% precision 5V reference with thermal shut-down
q
Output current to 200 mA DC
q
60V output capability
q
Wide common mode input range for error-amp
q
One pulse per period (noise suppression)
q
Improved max. duty cycle at high frequencies
q
Double pulse suppression
q
Synchronize through pin 3
Application Notes
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3524DMX | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| LM3524DMX/NOPB | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| LM3524DN | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| LM3524DN | 制造商:Texas Instruments 功能描述:ENHANCED PWM CONTROLLER 3524 DIP |
| LM3524DN/NOPB | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓撲結(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
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