LMV7231SQ/NOPB ,Hex Window Comparator with 1.5% Precision and 400mV Reference 24-WQFN -40 to 125Features 3 DescriptionThe LMV7231 device is a 1.5% accurate Hex1• (For V = 3.3 V ±10%, Typical Unle ..
LMV7235M5 ,45 nsec, Ultra Low Power, Low Voltage, Rail-toRail Input Comparator with Open-Drain/Push-Pull OutputLMV7235/LMV7239 45 nsec, Ultra Low Power, Low Voltage, Rail-to-Rail Input Comparator withOpen-Drain ..
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LMV7231SQ/NOPB
Hex Window Comparator with 1.5% Precision and 400mV Reference
Controller
(FPGA) Channel 1
UV1
OV6
OV5
OV4
OV3
OV2
OV1
+IN1
-IN1
CO1*
COPOL
AOSEL
OV1
Channel 6+IN6
-IN6
CO6
+400mV
REFCOPOL
REF
Monitored Voltage #1
Monitored Voltage #6
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LMV7231SNOSB45F –FEBRUARY 2010–REVISED JANUARY 2016
LMV7231 Hex Window Comparator With 1.5% Precision and 400-mV Reference Features (ForVS= 3.3V ±10%, Typical Unless Otherwise
Noted) Undervoltage and Overvoltage Detection High Accuracy Voltage Reference: 400 mV Threshold Accuracy: ±1.5% (Maximum) Wide Supply Voltage Range 2.2Vto 5.5V Input and Output Voltage Range Above V+ Internal Hysteresis:6 mV Propagation Delay: 2.6µsto 5.6µs Supply Current 7.7 µA Per Channel 24-Lead WQFN Package Temperature Range: –40°Cto +125°C
Applications Power Supply Voltage Monitoring Battery Monitoring Handheld Instruments Relay Driving Industrial Control Systems
DescriptionThe LMV7231 device isa 1.5% accurate Hex
Window Comparator which can be usedto monitor
power supply voltagesor any other analog output,
such as an analog temperature sensoror 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 has6 outputs (CO1 CO6) that signal an undervoltageor overvoltage
event for each power supply input. An output (AO)is
also providedto signal when anyof the power supply
inputs have an overvoltage or undervoltage event.
This abilityto signal an undervoltageor overvoltage
event for the individual power supply inputs, in
additionto an outputto signal such an event on any the power supply inputs, adds unparalleled system
protection capability.
The 2.2-Vto 5.5-V power supply voltage range, low
supply current, and input or output voltage range
above V+ make the LMV7231 ideal fora wide range power supply monitoring applications. Operationis
ensured over the –40°C to +125°C temperature
range. The deviceis availableina 24-pin WQFN
package.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Simplified Typical Application
