LMP7300 - Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis from the PowerWise® Family
Datasheet Packaging Samples & Pricing Reliability Design Tools Models Knowledge Base

Features

(For VS = 5V, typical unless otherwise noted)

Supply current

13 μA

Propagation delay

4 μs

Input offset voltage

0.3 mV

CMRR

100 dB

PSRR

100 dB

Positive and negative hysteresis control

Adjustable hysteresis

1 mV/mV

Reference voltage

2.048V

Reference voltage accuracy

0.25%

Reference voltage source current

1 mA

Wide supply voltage range

2.7V to 12V

Operating temperature range ambient

−40°C to 125°C

General Description

The LMP7300 is a combination comparator and reference with ideal specifications for precision threshold detecting. More...


Applications

•Precision threshold detection
•Battery monitoring
•Battery management systems
•Zero crossing detectors
  Typical Application
click for larger image


ParametersValues
Response Time 4 us
Output Bus Open Drain
Supply Min 2.7 Volt
Supply Max 12 Volt
Channels 1 Channels
Offset Voltage max, 25C 0.3 mV
Output Current 10 mA
Input Range Not R-R
Supply Current Per Channel 0.012 mA
PowerWise Rating 3 48 uA x us
Max Input Bias Current 3 nA
Special Features 2.048V Vref, Adj Hyst
Temperature Min -40 deg C
Temperature Max 125 deg C
Function Comparator with Reference
Automotive Yes
PowerWise Yes


Typical Performance

*click for larger image


  Additional Resources
Design Tools


Connection Diagram

click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LMP7300 Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis 902
Kbytes		 23-Apr-09 Download
LMP7300 Micropower Precision Comparator and Precision Reference with Adjustable Hysteresis (Japanese)
 1238 Kbytes   Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LMP7300MASOIC NARROW8NOPB1260RoHS N/A Full productionLMP7300.MOD
Samples with Eval Board
Buy Now 		1K+$0.99rail
of
95		NSZXTT
LMP73
00MA
6 weeks500
LMP7300MAXSOIC NARROW8NOPB1260RoHS N/A Full productionLMP7300.MOD
 
Buy Now 		1K+$0.99reel
of
2500		NSZXTT
LMP73
00MA
8 weeksN/A
LMP7300MMEMINI SOIC8NOPB1260RoHS N/A Full productionLMP7300.MOD
Samples
Buy Now 		1K+$0.99reel
of
250		ZXTT
C31A
6 weeks1000
LMP7300MMMINI SOIC8NOPB1260RoHS N/A Full productionLMP7300.MOD
 
Buy Now 		1K+$0.99reel
of
1000		ZXTT
C31A
6 weeks2000
LMP7300MMXMINI SOIC8NOPB1260RoHS N/A Full productionLMP7300.MOD
 
Buy Now 		1K+$0.99reel
of
3500		ZXTT
C31A
6 weeksN/A

General Description

The LMP7300 is a combination comparator and reference with ideal specifications for precision threshold detecting. The precision 2.048V reference comes with a 0.25% maximum error. The comparator features micropower (35 µW), low offset voltage (0.75 mV max), and independent adjustable positive and negative hysteresis.

Hysteresis control for the comparator is accomplished through two external pins. The HYSTP pin sets the positive hysteresis and the HYSTN pin sets the negative hysteresis. The comparator design isolates the VIN source impedance and the programmable hysteresis components. This isolation prevents any undesirable interaction allowing the IC to maintain a precise threshold voltage during level detection.

The combination of low offset voltage, external hysteresis control, and precision voltage reference provides an easy to use micropower precision threshold detector.

The LMP7300 open collector output makes it ideal for mixed voltage system designs. The output voltage upper rail is unconstrained by VCC and can be pulled above VCC to a maximum of 12V. The LMP7300 is a member of the LMP precision amplifier family.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LMP7300MAVIP50CLZ301755003150001289382110
LMP7300MAXVIP50CLZ301755003150001289382110
LMP7300MMVIP50CLZ301755003150001289382110
LMP7300MMEVIP50CLZ301755003150001289382110
LMP7300MMXVIP50CLZ301755003150001289382110

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Design Tools

TitleSize in Kbytes Date Click link below to Download    
"Article - Build a bidirectional, single-wire, line-powered transceiver using just a few basic parts"     View    

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Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-1639: Application Note 1639 LMP7300 Single Precision Comparator with Reference Evaluation Boards (SOIC and MSOP) 1191
Kbytes		 2-Jun-08 Download
AN-1639 (Japanese): Application Note 1639 LMP7300 Single Precision Comparator with Reference Evaluation Boards (SOIC and MSOP)
 716 Kbytes   Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.

[Information as of 7-Nov-2009]