
- 制造厂商:TI(德州仪器,Texas Instruments)
- 产品类别:电源管理
- 技术类目:监控器和复位 IC
- 功能描述:具有低电平有效推挽复位功能、用于监控电源的 3 引脚电压监控器(复位 IC)
- 点击这里打开及下载LM809的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格

The LM809 and LM810 microprocessors supervisory circuits can be used to monitor the power supplies in microprocessor and digital systems. They provide a reset to the microprocessor during power-up, power-down and brown-out conditions.
The function of the LM809 and LM810 are to monitor the VCC supply voltage, and assert a reset signal whenever this voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for 240 ms after VCC rises above the threshold. The LM809 has an active-low RESET output, while the LM810 has an active-high RESET output.
Seven standard reset voltage options are available, suitable for monitoring 5-V, 3.3-V, and 3-V supply voltages.
With a low supply current of only 15 µA, the LM809 and LM810 are ideal for use in portable equipment.
- Precision Monitoring of Supply Voltages
- Available Threshold Options: 2.63 V, 2.93 V, 3.08 V, 4.38 V, 4.63 V
- Superior Upgrade to MAX809 and MAX810
- Fully Specified Over Temperature
- 140-ms Minimum Power-On Reset Pulse Width, 240-ms Typical
- Active-Low RESET Output (LM809)
- Active-High RESET Output (LM810)
- Ensured RESET Output Valid for VCC ≥ 1 V
- Low Supply Current, 15-A Typical
- Power Supply Transient Immunity
- Number of supplies monitored
- 1
- Threshold voltage 1 (Typ) (V)
- 2.63, 2.93, 3.08, 4.38, 4.63
- Features
- Ease-of-use
- Reset threshold accuracy (%)
- 5
- Output driver type/reset output
- Active-low, Push-pull
- Time delay (ms)
- 240
- Rating
- Catalog
- Watchdog timer WDI (sec)
- None
- Operating temperature range (C)
- -40 to 105
LM809的完整型号有:LM809M3-2.63/NOPB、LM809M3-2.93/NOPB、LM809M3-3.08/NOPB、LM809M3-4.38/NOPB、LM809M3-4.63/NOPB、LM809M3X-2.63/NOPB、LM809M3X-2.93/NOPB、LM809M3X-3.08/NOPB、LM809M3X-4.38/NOPB、LM809M3X-4.63/NOPB、LM809M3-2.93、LM809M3-3.08,以下是这些产品的关键参数及官网采购报价:
LM809M3-2.63/NOPB,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM809M3-2.63/NOPB的批量USD价格:.352(1000+)
LM809M3-2.93/NOPB,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM809M3-2.93/NOPB的批量USD价格:.352(1000+)
LM809M3-3.08/NOPB,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM809M3-3.08/NOPB的批量USD价格:.352(1000+)
LM809M3-4.38/NOPB,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM809M3-4.38/NOPB的批量USD价格:.352(1000+)
LM809M3-4.63/NOPB,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM809M3-4.63/NOPB的批量USD价格:.352(1000+)
LM809M3X-2.63/NOPB,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM809M3X-2.63/NOPB的批量USD价格:.293(1000+)
LM809M3X-2.93/NOPB,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM809M3X-2.93/NOPB的批量USD价格:.293(1000+)
LM809M3X-3.08/NOPB,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM809M3X-3.08/NOPB的批量USD价格:.293(1000+)
LM809M3X-4.38/NOPB,工作温度:PropertyValue,封装:SOT-23 (DBZ)-3,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM809M3X-4.38/NOPB的批量USD价格:.293(1000+)
LM809M3X-4.63/NOPB,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM809M3X-4.63/NOPB的批量USD价格:.293(1000+)
LM809M3-2.93,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SNPB,TI官网LM809M3-2.93的批量USD价格:.454(1000+)
LM809M3-3.08,工作温度:-40 to 105,封装:SOT-23 (DBZ)-3,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SNPB,TI官网LM809M3-3.08的批量USD价格:.454(1000+)

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