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| 型號： | S-80935CNMC-G85-T2G |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封裝： | LEAD FREE, SOT-23, 5 PIN |
| 文件頁數(shù)： | 5/36頁 |
| 文件大?。?/td> | 433K |
| 代理商： | S-80935CNMC-G85-T2G |
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ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR WITH DELAY CIRCUIT (EXTERNAL DELAY TIME SETTING)
Rev.4.0_00
S-809xxC Series
Seiko Instruments Inc.
13
A
B
VDD
tD
VSS
Minimum operating voltage
Output from OUT pin
VDD
VSS
(1) (2)
(3)
(5)
(4)
Hysteresis width (VHYS)
Release volatage (
+VDET)
Detection voltage (
VDET)
Figure 15 Operation 2
2. Delay Circuit
The delay circuit delays the output signal from the time at which the power voltage (VDD) exceeds the
release voltage (
+VDET) when VDD is turned on. The output signal is not delayed when the VDD goes below
the detection voltage (
VDET) (Refer to Figure 15). The delay time (tD) is determined by the time constant
of the built-in constant current (approx. 100 nA ) and the attached external capacitor (CD), and calculated
from the following equation.
tD (ms)=Delay coefficient×CD (nF)
Delay coefficient: (25
°C)
Detection voltage
VDET ≤ 1.4 V
Min. 0.57, Typ. 0.77, Max. 0.96
Detection voltage
VDET ≥ 1.5 V
Nch open-drain output products: Min. 4.3,
Typ. 5.7,
Max. 7.2
CMOS output products:
Min. 3.8,
Typ. 5.1,
Max. 6.4
Caution 1. When the CD pin is open, a double pulse shown in Figure 16 may appear at release. To
avoid the double pulse, attach 20 pF or larger capacitor to the CD pin. Do not apply
voltage to the CD pin.
VOUT
time
Figure 16
2. Print circuit board layout should be made in such a way that no current flows into or
flows from the CD pin since the impedance of the CD pin is high, otherwise correct
delay time cannot be provided.
3. There is no limit for the capacitance of the external capacitor (CD) as long as the leakage
current of the capacitor can be ignored against the built-in constant current value.
Leakage current causes deviation in delay time. When the leakage current is larger
than the built-in constant current, no release takes place.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| S-80935CNMC-G85T2U | 功能描述:IC VOLT DETECTOR 3.5V SOT23-5 制造商:ablic u.s.a. inc. 系列:S-809xxC 包裝:剪切帶（CT） 零件狀態(tài):在售 類型:電壓檢測器 受監(jiān)控電壓數(shù):1 輸出:開路漏極或開路集電極 復(fù)位:低有效 復(fù)位超時:最小為 20 ms 電壓 - 閾值:3.5V 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商器件封裝:SOT-23-5 標(biāo)準(zhǔn)包裝:1 |
| S-80935CNNB-G85-T2 | 功能描述:電壓監(jiān)測器/監(jiān)控器 3.5V 1.2uA N-Ch Open RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數(shù):2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準(zhǔn)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(fēng)格:SMD/SMT |
| S-80935CNNB-G85T2G | 功能描述:電壓監(jiān)測器/監(jiān)控器 3.5V 1.2uA N-Ch Open RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數(shù):2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準(zhǔn)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(fēng)格:SMD/SMT |
| S-80935CNPF-G85TFG | 功能描述:電壓監(jiān)測器/監(jiān)控器 Voltage Detect with External Delay 1.1uA RoHS:否 制造商:Texas Instruments 監(jiān)測電壓數(shù):2 監(jiān)測電壓:Adjustable 輸出類型:Open Drain 欠電壓閾值: 過電壓閾值: 準(zhǔn)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(fēng)格:SMD/SMT |
| S-80935CNPF-G85TFU | 功能描述:IC VOLT DETECTOR 3.5V SNT-4A 制造商:ablic u.s.a. inc. 系列:S-809xxC 包裝:剪切帶（CT） 零件狀態(tài):在售 類型:電壓檢測器 受監(jiān)控電壓數(shù):1 輸出:開路漏極或開路集電極 復(fù)位:低有效 復(fù)位超時:最小為 20 ms 電壓 - 閾值:3.5V 工作溫度:-40°C ~ 85°C（TA） 安裝類型:表面貼裝 封裝/外殼:4-SMD，扁平引線 供應(yīng)商器件封裝:SNT-4A 標(biāo)準(zhǔn)包裝:1 |
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