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| 型号： | ISL88016IHTZ-T |
| 厂商： | Intersil |
| 文件页数： | 5/7页 |
| 文件大小： | 0K |
| 描述： | IC VOLTAGE SUPERVISOR TSOT23-6 |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 3,000 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 可调节/可选择 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 细型，TSOT-23-6 |
| 供应商设备封装： | TSOT-23-6 |
| 包装： | 带卷 (TR) |
ISL88016, ISL88017
V TH / V POR
V DD
1V
t POR
t RST
t POR
t POR
RST
MR
>t MR
FIGURE 1. VOLTAGE MONITORING TIMING DIAGRAM
Principles of Operation
The ISL88016 and ISL88017 devices provides a low cost
solution for those voltage monitoring applications needing
RST/MR
ISL88016
V DD
supply voltage supervision with power reset control, and
GND
ISL88017
VSET3
manual reset assertion. By integrating these common
features along with three pins of Vth programming into a
small 6 Ld TSOT-23 package and using only 1μA of supply
VSET1
VSET2
current, the ISL88016 and ISL88017 devices can lower
system cost, reduce board space requirements, and
increase the reliability of a system while reducing inventory
overhead costs.
Low Voltage Monitoring
During normal operation, the ISL88016 and ISL88017
monitor the voltage level of V DD . The device asserts a reset
(RST = LOW) if this voltage is less than the programmed
voltage trip point. The reset signal prevents system
operation during a power failure or brownout condition. This
reset signal remains asserted until V DD exceeds the voltage
threshold setting for the reset time delay period t POR . (See
Figure 1).
The ISL88016 and ISL88017 allow users to customize the
Power-On Reset voltage threshold level, which is the voltage
at which the reset is deasserted. The three VSET inputs are
either tied to V DD , GND or left open to program V TH . See
the Power-On Reset Voltage Setting table on page 3 for
specific voltage configuration. Also see Figure 2 for a
schematic representation of the VSET pins being
programmed, noting the minimum necessary components
for IC operation. Do not attempt to reprogram a V TH while
the IC is biased.
5
FIGURE 2. SETTING V POR USING VSET INPUTS
Power-On Reset (POR)
Applying power to the ISL88016 and ISL88017 activates a
POR circuit which asserts reset once V DD = 1 V. (i.e., RST
goes LOW). This provides several benefits:
? It prevents the system microprocessor from starting to
operate with insufficient voltage.
? It prevents the processor from operating prior to
stabilization of the oscillator.
? It ensures that the monitored device is held out of
operation until internal registers are properly loaded.
? It allows time for an FPGA to download its configuration
prior to initialization of the circuit.
The reset signal remains asserted until V DD rises above the
minimum voltage sense level for time period t POR . This
ensures that the V DD voltage has stabilized.
Optional V DD de-coupling capacitance can be added to filter
transients if needed.
FN6141.0
December 22, 2006
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL88016IHTZ-T7A | 功能描述:监控电路 SNGVMON W/ PIN SELEC TABLEVTRIP1.60VTO2.6 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| ISL88016IHTZ-TK | 功能描述:IC VOLT SUPERVISOR TSOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:50 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 130 ms 电压 - 阀值:4.25V 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
| ISL88017IHTZ | 制造商:Intersil Corporation 功能描述:IC SM VOLTAGE SUPERIVISOR 6-PINS |
| ISL88017IHTZ-T | 功能描述:IC VOLTAGE SUPERVISOR TSOT23-6 RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:50 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:低有效 复位超时:最小为 130 ms 电压 - 阀值:4.25V 工作温度:-40°C ~ 85°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
| ISL88017IHTZ-T7A | 功能描述:监控电路 SNGVMON W/ PIN SELEC TABLEVTRIP2.15VTO4.6 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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