MPQ6400
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Description
The MPQ6400 family is the microprocessor (µP) supervisory circuit which can monitor and provide reset function for system voltages from 0.4V. When either the SENSE voltage falls below its threshold (VIT) or the voltage of manual reset () is pulled to a logic low, the signal will be asserted. The reset voltage can be factory-set for standard voltage rails from 0.9V to 5V, while the MPQ6400DG-01 reset voltage is adjustable with an external resistor divider. When SENSE voltage and exceed their thresholds, is driven to a logic high after a user-programmable delay time.
The MPQ6400 has a very low quiescent current of 1.6μA typically, which makes it ideal suitable for battery-powered applications. It provides a precision reference to achieve ±1% threshold accuracy. The reset delay time can be selected by a capacitor which is connected between CDELAY and GND, allowing the user to select any delay time from 2.1ms to 10s. 380ms delay time is selected by connecting the CDELAY pin to VCC, while 24ms delay time by leaving the CDELAY pin float. MPQ6400 is available in 2mm×2mm 6-pin QFN package.
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Features & Benefits
- Guaranteed Industrial/Automotive Temp Range Limits
- Fixed Threshold Voltages for Standard Voltage Rails From 0.9V to 5V and Adjustable Voltage From 0.4V are Available
- Low Quiescent Current: 1.6μA Typ
- Power-On Reset Generator with Adjustable
- Delay Time: 2.1ms to 10s
- High Threshold Accuracy: ±1% Typ
- Manual Reset () Input
- Open-Drain Output
- Immune to Short Negative SENSE Voltage
- Guaranteed Reset Valid to VCC=0.8V
- 2×2mm QFN
- AEC-Q100 Qualified

Active Part Numbers:
MPQ6400DG-33-AEC1-LF-P MPQ6400DG-33-AEC1-LF-Z MPQ6400DG-33-LF-P MPQ6400DG-33-LF-Z
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MPQ6400 Resources
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APPLICATION
HVACAPPLICATIONHeating, ventilation, and air conditioning (HVAC) units for both industrial and residential applications must offer customers the key features of reliability, energy efficiency, and convenience. The best HVAC systems provide temperature adjustments and air circulation without introducing a lot of noise or raising power bills. New generations of HVAC units are integrating smart-home ready features ...
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VIDEO
UNDERSTANDING ANGLE POSITION SENSOR RESOLUTION AND BANDWIDTH IN SERVO CONTROL LOOPSVIDEOThis presentation details the advantages of magnetic angle sensing compared to optical sensing, the differences between Hall-effect and TMR-based solutions, and how to assess resolution accuracy and bandwidth. Learn the impact of error sources, and the importance of calculating real resolution in an application. Next-generation TMR sensor solutions such as the MA600 offer new levels of sensitivity...
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VIDEO
MA102/MA302: 12-BIT, COMPACT ANGLE SENSORS FOR BLDC MOTOR COMMUTATIONVIDEOThe MagAlpha MA102 and MA302 series replaces discrete Hall switches in any block commutated brushless DC (BLDC) motor, including power tools, fans, white goods, automotive applications, and more. These sensors are available in a small QFN (3mmx3mm) package, providing flexibility for highly compact designs. Changing to a single MA102 or MA302 reduces board space by up to 70% with no need for a sepa...
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VIDEO
HIGH-PERFORMANCE ANGLE, POSITION, AND CURRENT SENSINGVIDEOOverview of MPS position sensors and current sensors.
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ARTICLE
USING MAGALPHA ROTARY MAGNETIC SENSORS IN SIDE SHAFT MODEARTICLEThe previous article discussed types of magnet and their uses with MPS MagAlpha sensors in “end of shaft” mode. This article will explore the “side shaft“ mode topology. MPS MagAlpha sensors utilize an array of Hall elements in the center of the IC that sense the horizontal vector of the field from the rotating magnet. This field typically comes from a simple two-pole, diam...
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ARTICLE
CHOOSING THE RIGHT MAGNET FOR MAGALPHA SENSORSARTICLEThe MPS MagAlpha family offers rotary Hall effect magnetic sensors that sense the position of a magnet as it rotates above or at the side of the sensor. Exact magnet sizes, shapes, and materials should be selected depending on application requirements and target costs. This article discusses tradeoffs, and how to choose the best magnet for an application. MPS MagAlpha sensors utilize an array o...
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ARTICLE
AN INTRODUCTION TO THE MAGALPHA MAGNETIC ANGLE SENSOR FAMILYARTICLEThe ability to detect position or speed is a fundamental requirement in the control and monitoring of many mechanical systems. Slow speed position measurement in applications such as motorized actuators has historically used resistive potentiometers. In high-speed applications such as servo motors, optical encoders have typically been used. Though potentiometers are inexpensive, they suffer from ...
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VIDEO
MCAR ANGLE SENSORSVIDEOThe mCar is a demonstration and marketing platform for MPS hardware. It integrates MPS power and motion control components in a real, large scale system that allows MPS teams to implement and test hardware and software on a challenging application. mCar was fully developed and fabricated in-house at MPS. Learn more about themCaror visit ourautomotivecomponentspage. MA704 10-bit, High Bandwith, ...
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