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| 型号： | ISL88708IB831Z-TK |
| 厂商： | Intersil |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU 3.09V 8-SOIC |
| 产品培训模块： | Voltage Supervisors Solutions for Industrial Control Applications |
| 标准包装： | 1 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 3.09V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 标准包装 |
| 产品目录页面： | 1235 (CN2011-ZH PDF) |
| 其它名称： | ISL88708IB831Z-TKDKR |
?
ISL88705, ISL88706, ISL88707,
ISL88708, ISL88716, ISL88813
Data Sheet
January 12, 2009
FN8092.5
μP Supervisor with Watchdog Timer,
Power-Fail Comparator, Manual Reset and
Adjustable Power-On Reset
Designed with high reset threshold accuracy and low power
consumption, the ISL88705, ISL88706, ISL88707,
ISL88708, ISL88716 and ISL88813 devices are
microprocessor supervisors that are designed to monitor
power-supply and battery functions in microprocessor
systems. They can help to lower system cost, reduce board
space requirements and increase the reliability of systems.
These devices provide essential functions such as supply
voltage supervision by asserting a reset output during
power-up and power-down as well as during brownout
conditions. An auxiliary voltage monitor is provided for
detecting power failures warning the system of low battery
conditions or presence detection. In addition, an
independent watchdog timer helps to monitor
microprocessor activity every 1.6s (typical). An active-low
manual reset is offered and reset signals remain asserted
until V DD returns to proper operating levels.
Users can increase the nominal 200ms power-on reset
time-out delay by adding an external capacitor to the C POR
pin on the ISL88707 and ISL88708.
Features
? Fixed-Voltage Options Allow Precise Monitoring of +3.0V,
+3.3V, and +5.0V Power Supplies
? Additional Voltage Monitor for Power-Fail Detection or
Low-Battery Warning
- Monitors Voltages Down to 1.25V
- Adjustable Power-Fail Input Threshold
? Watchdog Timer Capability With 1.6s Time-out
? Both RST and RST Outputs Available
? 140ms Minimum Reset Pulse Width with Option to
Customize Using an External Capacitor
? Manual Reset Input on all Devices
? Reset Signal Valid Down to V DD = 1V
? Accurate ±1.8% Voltage Threshold
? Immune to Power-Supply Transients
? Ultra Low 10μA Maximum Supply Current at 3V
? Pb-Free (RoHS Compliant)
Applications
? Portable/Battery Powered Equipment
? Notebook/Desktop Computer Systems
? Designs Using DSPs, Microcontrollers or Microprocessors
? Controllers
? Intelligent Instruments
? Communications Systems
? Industrial Equipment
Pinouts
ISL88705, ISL88706
(8 LD PDIP/SOIC)
TOP VIEW
ISL88716, ISL88813
(8 LD PDIP/SOIC)
TOP VIEW
ISL88707, ISL88708
(8 LD PDIP/SOIC)
TOP VIEW
MR
V DD
GND
PFI
1
2
3
4
8
7
6
5
WDO
RST
WDI
PFO
MR
V DD
GND
PFI
1
2
3
4
8
7
6
5
WDO
RST
WDI
PFO
MR
V DD
GND
PFI
1
2
3
4
8
7
6
5
RST
RST
C POR
PFO
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. 2005, 2006, 2008, 2009. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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