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參數(shù)資料
| 型號： | 5962-8951101EA |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.5 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, CDIP16 |
| 封裝： | CERAMIC, DIP-16 |
| 文件頁數(shù)： | 11/14頁 |
| 文件大小： | 780K |
| 代理商： | 5962-8951101EA |
PRINCIPLES OF OPERATION AND TYPICAL CHAR-
ACTERISTIC SHUTDOWN OPTIONS
(See Block Diagram)
Since both the compensation and soft-start terminals
(Pins 9 and 8) have current source pull-ups, either can
readily accept a pull-down signal which only has to sink a
maximum of 100
A to turn off the outputs. This is subject
to the added requirement of discharging whatever exter-
nal capacitance may be attached to these pins.
An alternate approach is the use of the shutdown circuitry
of Pin 10 which has been improved to enhance the avail-
able shutdown options. Activating this circuit by applying
a positive signal on Pin 10 performs two functions; the
PWM latch is immediately set providing the fastest turn-
off signal to the outputs; and a 150
A-current sink begins
to discharge the external soft-start capacitor. If the shut-
down command is short, the PWM signal is terminated
without significant discharge of the soft-start capacitor,
thus, allowing, for example, a convenient implementation
of pulse-by-pulse current limiting. Holding Pin 10 high for
a longer duration, however, will ultimately discharge this
external capacitor, recycling slow turn-on upon release.
Pin 10 should not be left floating as noise pickup could
conceivably interrupt normal operation.
UC1525A/27A
UC2525A/27A
UC3525A/27A
UC1525A Oscillator Schematic
Oscillator Charge Time
vs RT and CT
Oscillator Discharge Time
vs RD and CT
6
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 5962-89511032A | 制造商:Texas Instruments 功能描述:Voltage Mode PWM Controller 400mA 20-Pin LCCC Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 5962-8951103EA | 制造商:Texas Instruments 功能描述:Voltage Mode PWM Controller 400mA 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:VOLT MODE PWM CNTRLR 400MA 16CDIP - Rail/Tube |
| 5962-8951104EA | 制造商:Texas Instruments 功能描述:Voltage Mode PWM Controller 400mA 16-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:VOLT MODE PWM CNTRLR 400MA 16CDIP - Rail/Tube |
| 5962-8951105EA | 制造商:Texas Instruments 功能描述:Voltage Mode PWM Controller 400mA 16-Pin CDIP Tube |
| 5962-8951105V2A | 功能描述:電壓模式 PWM 控制器 Regulating PWM RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(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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