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參數資料
| 型號： | ISL88022IU8HEZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Triple Voltage Monitor with Adjustable Power-On-Reset and Undervoltage/ Overvoltage Monitoring Capability |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MO-187AA, MSOP-8 |
| 文件頁數： | 1/7頁 |
| 文件大小： | 198K |
| 代理商： | ISL88022IU8HEZ |
1
FN8226.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL88021, ISL88022
Triple Voltage Monitor with Adjustable
Power-On-Reset and Undervoltage/
Overvoltage Monitoring Capability
The ISL88021 and ISL88022 family of devices are
customizable triple voltage-monitoring supervisors that
assert a reset if any of the monitored voltages becomes
non-compliant. They offer popular functions such as
Power-On-Reset timing control with both RESET and
RESET outputs, Supply Voltage Supervision, both under or
overvoltage detection, and Manual Reset assertion. By
offering these features in a small 8 Ld MSOP package, the
ISL88021 and ISL88022 can lower system cost, reduce
board space requirements and increase the reliability of
systems.
Applying a voltage to V
DD
activates the Power-On-Reset
circuit which holds RESET low for an adjustable period of
time. This allows the power supply and system oscillator to
stabilize before the processor can execute code.
Low V
DD
detection circuitry protects the user’s system from
low voltage conditions, resetting the system when V
DD
falls
below its minimum preset voltage threshold V
TH1
. Reset
remains asserted until V
DD
returns to its proper operating
level and stabilizes. Two additional voltage monitoring
inputs, V2MON (preset) and V3MON (adjustable), monitor
other supplies to provide reliable system operation.
The ISL88021 V3MON input monitors for undervoltage (UV)
conditions whereas the ISL88022 V3MON input allows
monitoring for overvoltage (OV) conditions. The monitored
voltage on V3MON on either device is compared via a
resistor divider to a 600mV internal reference. Hence, any
voltage more or less positive than this reference can be
accurately monitored to meet specific system level
requirements or to fine-tune the threshold for applications
requiring higher precision.
These devices also let users increase the Power-On-Reset
time-out delay by connecting a capacitor between C
POR
and
ground. This lengthens the period of an internal clock
counter thereby increasing the time between voltage
compliance and reset outputs signaling.
A manual reset input provides debounce circuitry for
minimum reset component count.
Features
Triple Voltage Monitor and Reset Assertion
Low V
DD
Detection and Reset Assertion
- Adjustable Reset Threshold Voltages
- 0.6V ±6mV Over -40°C to +85°C
- Reset Signal Valid to V
DD
= 1V
140ms Minimum Reset Pulse Delay that is Customizable
Using an External Capacitor
Both RST and RST Outputs Available
Undervoltage/Overvoltage Monitoring Capability
Low 20μA Consumption
Small 8 Ld MSOP Package
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
Process Control Systems
Intelligent Instruments
Embedded Control Systems
Computer Systems
Portable/Battery-Powered Equipment
Multi-Voltage Systems
Pinout
ISL88021, ISL88022
(8 LD MSOP)
TOP VIEW
1
2
3
4
8
7
6
5
V
DD
V2MON
GND
RST
RST
C
POR
V3MON
MR
Data Sheet
September 18, 2006
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ISL88022IU8HEZ-TK | 功能描述:IC VOLTAGE MON TRIPLE OV 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:簡單復位/加電復位 監視電壓數目:1 輸出:開路漏極或開路集電極 復位:低有效 復位超時: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 供應商設備封裝:SOT-23-5 包裝:帶卷 (TR) |
| ISL88022IU8HFZ | 功能描述:IC VOLT MONITOR TRPL 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:簡單復位/加電復位 監視電壓數目:1 輸出:開路漏極或開路集電極 復位:低有效 復位超時: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 供應商設備封裝:SOT-23-5 包裝:帶卷 (TR) |
| ISL88022IU8HFZ-TK | 功能描述:IC VOLTAGE MON TRIPLE OV 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:簡單復位/加電復位 監視電壓數目:1 輸出:開路漏極或開路集電極 復位:低有效 復位超時: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 供應商設備封裝:SOT-23-5 包裝:帶卷 (TR) |
| ISL88031EVAL1 | 功能描述:EVAL BOARD 1 FOR ISL88031 RoHS:否 類別:編程器，開發系統 >> 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 |
| ISL88031IU8EAZ | 功能描述:IC VOLT MONITOR QUINT 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 監控器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:簡單復位/加電復位 監視電壓數目:1 輸出:開路漏極或開路集電極 復位:低有效 復位超時: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 供應商設備封裝:SOT-23-5 包裝:帶卷 (TR) |
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