Datasheet > LMV7231SQE/NOPB

LMV7231SQE/NOPB

更新时间： 2024-11-03 11:13:59

品牌	Logo	应用领域
德州仪器 - TI		比较器
页数	文件大小	规格书
28页	1639K
描述
精密微功耗十六路比较器 \| RTW \| 24 \| -40 to 125

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LMV7231

SNOSB45F –FEBRUARY 2010–REVISED JANUARY 2016

LMV7231 Hex Window Comparator With 1.5% Precision and 400-mV Reference

1 Features

3 Description

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.

•

(For V_S= 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

2 Applications

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.

•

Power Supply Voltage Monitoring

Battery Monitoring

Handheld Instruments

Relay Driving

Industrial Control Systems

Device Information⁽¹⁾

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LMV7231

WQFN (24)

4.00 mm × 4.00 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Typical Application

V+

Monitored Voltage #1

COPOL

Channel 1

+IN1

CO1

Monitored Voltage #6

-IN1

COPOL

REF

OV1 UV1

Controller

(FPGA)

CO6

+IN6

-IN6

Channel 6

OV6 UV6

REF

AOSEL

OV1

OV2

OV3

OV4

OV5

OV6

+400mV

UV1

UV2

UV3

UV4

UV5

UV6

* Open Drain

LMV7231

GND

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...28

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LMV7231SQE/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LMV7231SQ/NOPB	TI	完全替代	精密微功耗十六路比较器 \| RTW \| 24 \| -40 to 125
LMV7231SQX/NOPB	TI	完全替代	精密微功耗十六路比较器 \| RTW \| 24 \| -40 to 125

与LMV7231SQE/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LMV7231SQX	NSC	获取价格	Hex Window Comparator with 1.5 Precision and 400mV Reference
LMV7231SQX/NOPB	TI	获取价格	精密微功耗十六路比较器 \| RTW \| 24 \| -40 to 125
LMV7235	TI	获取价格	LMV7235/LMV7239/LMV7239Q 75 nsec, Ultra Low Power, Low Voltage, Rail-to-Rail Input Compara
LMV7235	NSC	获取价格	45ns, Ultra Low Power, Low Voltage, Rail-to-Rail Input Comparator with Open-Drain/Push-Pul
LMV7235	UTC	获取价格	ultra low power low voltage rail-to-rail input comparator with open-drain output
LMV7235_06	NSC	获取价格	45 nsec, Ultra Low Power, Low Voltage, Rail-to-Rail Input Comparator with Open-Drain/Push-
LMV7235_08	NSC	获取价格	45 nsec, Ultra Low Power, Low Voltage, Rail-to-Rail Input Comparator with Open-Drain/Push-
LMV7235M5	TI	获取价格	LMV7235/LMV7239/LMV7239Q 75 nsec, Ultra Low Power, Low Voltage, Rail-to-Rail Input Compara
LMV7235M5	NSC	获取价格	45ns, Ultra Low Power, Low Voltage, Rail-to-Rail Input Comparator with Open-Drain/Push-Pul
LMV7235M5/NOPB	TI	获取价格	高速低电压开漏比较器 \| DBV \| 5 \| -40 to 85

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