- 制造厂商:TI
- 产品类别:放大器
- 技术类目:比较器
- 功能描述:精密微功耗十六路比较器
- 点击这里打开及下载LMV7231的技术文档资料
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The LMV7231 device is a 1.5% accurate Hex Window Comparator which can be used to monitor power supply voltages or any other analog output, such as an analog temperature sensor or current-sense amplifier. The device uses an internal 400-mV reference for the comparator trip value. The comparator set points can be set through external resistor dividers. The LMV7231 has 6 outputs (CO1 to CO6) that signal an undervoltage or overvoltage event for each power supply input. An output (AO) is also provided to signal when any of the power supply inputs have an overvoltage or undervoltage event. This ability to signal an undervoltage or overvoltage event for the individual power supply inputs, in addition to an output to signal such an event on any of the power supply inputs, adds unparalleled system protection capability.
The 2.2-V to 5.5-V power supply voltage range, low supply current, and input or output voltage range above V+ make the LMV7231 ideal for a wide range of power supply monitoring applications. Operation is ensured over the 40°C to +125°C temperature range. The device is available in a 24-pin WQFN package.
- (For VS = 3.3 V ±10%, Typical Unless Otherwise Noted)
- Undervoltage and Overvoltage Detection
- High Accuracy Voltage Reference: 400 mV
- Threshold Accuracy: ±1.5% (Maximum)
- Wide Supply Voltage Range 2.2 V to 5.5 V
- Input and Output Voltage Range Above V+
- Internal Hysteresis: 6 mV
- Propagation Delay: 2.6 μs to 5.6 μs
- Supply Current 7.7 μA Per Channel
- 24-Lead WQFN Package
- Temperature Range: –40°C to +125°C
- Number of channels (#)
- 6
- Output type
- Open-drain
- Propagation delay time (μs)
- 5.6
- Vs (Max) (V)
- 5.5
- Vs (Min) (V)
- 2.2
- Vos (offset voltage @ 25 C) (Max) (mV)
- 6
- Iq per channel (Typ) (mA)
- 0.0076
- Input bias current (+/-) (Max) (nA)
- 5
- Rail-to-rail
- In, Out
- Rating
- Catalog
- Operating temperature range (C)
- -40 to 125
- Features
- Hysteresis, Internal Reference, Small Size
- VICR (Max) (V)
- 5.5
- VICR (Min) (V)
- -0.3
LMV7231的完整型号有:LMV7231SQ/NOPB、LMV7231SQE/NOPB、LMV7231SQX/NOPB,以下是这些产品的关键参数及官网采购报价:
LMV7231SQ/NOPB,工作温度:-40 to 125,封装:WQFN (RTW)-24,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LMV7231SQ/NOPB的批量USD价格:1.874(1000+)
LMV7231SQE/NOPB,工作温度:-40 to 125,封装:WQFN (RTW)-24,包装数量MPQ:250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LMV7231SQE/NOPB的批量USD价格:1.874(1000+)
LMV7231SQX/NOPB,工作温度:-40 to 125,封装:WQFN (RTW)-24,包装数量MPQ:4500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LMV7231SQX/NOPB的批量USD价格:1.562(1000+)
LMV7231EVAL — LMV7231 电源时序控制评估模块
This evaluation board contains the LMV7231 Hex Window Comparator and allows for evaluation of the device.
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