參數資料
型號: NCP303LSN41T1
廠商: ON SEMICONDUCTOR
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝: SC-59, TSOT-23, TSOP-5
文件頁數: 14/28頁
文件大小: 199K
代理商: NCP303LSN41T1
NCP302, NCP303
http://onsemi.com
21
Figure 45. Undervoltage Detection with Independent Reset Signal Control
2
1
5
3
Reset Output
EN
Input
VDD
CD
GND
To MCU or
Logic Circuitry
Logic 1
IN
NCP302L
Series
VDD
0 V
0
1
VDET
VTCD
tD2
NCP302
Input Pin
Logic 1
Enable
Pin
Reset
Output
CD Pin
Note: Logic 1 is in tristate when EN = 0,
VTCD 0.675 * VDD
This circuit monitors VDD for undervoltage. If the VDD
input falls below the detector threshold (VDET), then the
capacitor on the CD pin will be immediately discharged
resulting in the reset output changing to its active state
indicating that an undervoltage event has been detected. The
addition of a logic gate (Logic 1) provides for reset output
control which is independent of VDD. If the output of the
logic gate is tristated the undervoltage detector will behave
normally. If the tristate is deasserted, the logic gate will pull
the CD pin low resulting in the Reset Output pin changing to
an active state. This independent control is useful in power
supply sequencing applications when the Reset Output is
tied to the enable input of an LDO or DCDC converter.
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相關代理商/技術參數
參數描述
NCP303LSN42T1 功能描述:電壓監(jiān)測器/監(jiān)控器 4.2V Detector RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數:2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風格:SMD/SMT
NCP303LSN42T1G 功能描述:電壓監(jiān)測器/監(jiān)控器 4.2V Detector w/Reset Low RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數:2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風格:SMD/SMT
NCP303LSN43T1 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel 制造商:ON Semiconductor 功能描述:
NCP303LSN44T1 功能描述:電壓監(jiān)測器/監(jiān)控器 4.4V Detector RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數:2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風格:SMD/SMT
NCP303LSN44T1G 功能描述:電壓監(jiān)測器/監(jiān)控器 4.4V Detector w/Reset Low RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數:2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準確性:1 % 工作電源電壓:1.5 V to 6.5 V 工作電源電流:1.8 uA 最大工作溫度:+ 125 C 封裝 / 箱體:SON-6 安裝風格:SMD/SMT