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參數(shù)資料
| 型號： | ISL88705 |
| 廠商： | Intersil Corporation |
| 英文描述： | UP Supervisor with Watchdog Timer,Power-Fail Comparator, Manual Reset and Adjustable Power-On Reset |
| 中文描述： | 與看門狗定時器，電源故障比較器，手動復(fù)位和可調(diào)電源監(jiān)控復(fù)位， |
| 文件頁數(shù)： | 10/13頁 |
| 文件大?。?/td> | 518K |
| 代理商： | ISL88705 |
10
FN8092.0
October 18, 2005
Bipolar Voltage Sensing
Any of the ISL88705 - ISL88813 devices can be used to
sense and report the presence of both a positive and
negative voltage via the PFI and PFO as shown in Figure 16.
The V
DD
monitors the positive voltage as normal and the
PFI monitors the presence of the negative supply. As the
differential voltage across the R1, R2 divider is increased the
resistor values must be chosen such that the PFI node is
<1.25V when the -V supply is satisfactory and the positive
supply is at its maximum specified value. This allows the
positive supply to fluctuate within its acceptable range
without signaling a reset. Driving the MR with the inverted
PFO signal as shown provides for reset generation when -V
is not satisfactorily present. Reset will remain asserted as
long as PFO is high.
FIGURE 14. 5V OV/UV MONITORING
FIGURE 15. ISL88075EVAL1
RESET
V
DD
5.5V OV
FIGURE 16. ±5V MONITORING
+5V
ISL8870X
-5V
100k
100k
2N3904
MR
RST
PFO
PFI
R1
R2
V+
V-
RESET
ISL88705, ISL88706, ISL88707, ISL88708, ISL88716, ISL88813
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| ISL88706 | UP Supervisor with Watchdog Timer,Power-Fail Comparator, Manual Reset and Adjustable Power-On Reset |
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參數(shù)描述 |
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| ISL88705EVAL1 | 功能描述:EVAL BOARD 1 FOR ISL88705 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:* 標準包裝:1 系列:PSoC® 主要目的:電源管理，熱管理 嵌入式:- 已用 IC / 零件:- 主要屬性:- 次要屬性:- 已供物品:板，CD，電源 |
| ISL88705IB846Z | 功能描述:IC SUPERVISOR 4.64V 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目: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 600 ms 電壓 - 閥值:3.8V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) |
| ISL88705IB846Z-TK | 功能描述:IC SUPERVISOR MPU 4.64V 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目: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 600 ms 電壓 - 閥值:3.8V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) |
| ISL88705IP846Z | 功能描述:IC SUPERVISOR MPU 4.64V 8-DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目: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 600 ms 電壓 - 閥值:3.8V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) |
| ISL88706IB826Z | 功能描述:IC SUPERVISOR 2.63V 8-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:簡單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目: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 600 ms 電壓 - 閥值:3.8V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:帶卷 (TR) |
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