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參數(shù)資料
| 型號： | SI9140CQ |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | SMP Controller For High Performance Process Power Supplies |
| 中文描述： | SMP的高性能控制器過程電源 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 470K |
| 代理商： | SI9140CQ |
Si9140
Vishay Siliconix
S-58034—Rev. G, 15-Mar-99
8
FaxBack 408-970-5600, request 70026
www.siliconix.com
Pin 10: R
OSC
A resistor connected from this pin to ground sets the
oscillator’s capacitor C
OSC
, charge and discharge current.
See the oscillator section of the description of operation.
Pin 11: C
OSC
An external capacitor is connected to this pin to set the
oscillator frequency.
Pin 12: UVLO
SET
This pin will place the chip in the standby mode if the
UVLO
SET
voltage drops below 1.2 V. Once the UVLO
SET
voltage exceeds 1.2 V, the chip operates normally. There is a
built-in hysteresis of 165 mV.
Pin 13: P
GND
The negative return for the V
S
supply.
Pin 14: D
S
This CMOS push-pull output pin drives the external p-channel
MOSFET. This pin will be high in the standby mode. A
break-before-make function between D
S
and D
R
is built-in.
Pin 15: D
R
This CMOS push-pull output pin drives the external n-channel
MOSFET. This pin will be low in the standby mode. A
break-before-make function between the D
S
and D
R
is built-in.
Pin 16: V
S
The positive terminal of the power supply which powers the
CMOS output drivers. A bypass capacitor is required.
FUNCT IONAL BLOCK DIAGRAM
f
OSC
OSC
OSC
-----------------------------------
(at V
DD
5.0 V)
=
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| SI9140DQ | SMP Controller For High Performance Process Power Supplies |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SI9140CQ-T1 | 功能描述:電壓模式 PWM 控制器 SMP Controller 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 |
| SI9140CQ-T1-E3 | 功能描述:電壓模式 PWM 控制器 Switching Power Supply Controller 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 |
| SI9140CY | 功能描述:電壓模式 PWM 控制器 SMP Controller 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 |
| SI9140CY-E3 | 功能描述:電壓模式 PWM 控制器 Switching Power Supply Controller 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 |
| SI9140CY-T1 | 功能描述:電壓模式 PWM 控制器 Switching Power Supply Controller 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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