STM1001MWX6F Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	4.38V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23-3
Base Part Number:	STM1001

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Introduction

STMicroelectronics offers a wide variety of power management integrated circuits (PMICs) for various applications. Among them, STM1001MWX6F is a high-performance PMIC designed for low-power microcontroller-based systems. It offers a high level of system integration, including voltage supervision and monitoring for reset operations, an adjustable watchdog timer, and soft-start charging/discharging capabilities. STM1001MWX6F also features an input over-voltage protection with selectable threshold accuracy and response time, as well as an adjustable delay reset output. It is used in numerous applications including portable wireless radios, cell phones and PDAs, LCD modules, media players, printers, set-top-box, and more.

Design Feature

The STM1001MWX6F PMIC ensures a reliable level of power supply and system integration. It offers a wide input voltage range of up to 6V, and its extensive features allow it to support a variety of applications. The design is optimized for low noise and low quiescent current. It is equipped with an adjustable reset output time and a 200kHz switching frequency. It uses an N-channel MOSFET as a switching element and supports 1.8V to 5.5V gate voltage. The device also offers adjustable soft start timing to ensure smooth power supply ramp-up and minimize inrush current.

Application Field

The versatile STM1001MWX6F PMIC is suitable for several applications, especially those that require reliability, integration and low power consumption. It is mainly used in portable devices, including portable wireless radios, cell phones and PDAs, LCD modules, media players, printers, set-top-box, and more. It is also suitable for applications in automotive and industrial systems, such as wireless gateways and other embedded systems.

Working Principle

The STM1001MWX6F PMIC consists of three main components: a voltage supervisor, a reset timer and a power switch. The voltage supervisor monitors the initial voltage level and maintains it at a programmed threshold. It can also detect any over-voltage or under-voltage conditions and generate a reset signal if necessary. The reset timer is used to detect the voltage drop and delay the reset signal. It also controls the power-on reset and the watchdog signal output. Finally, the power switch controls the voltage supplied to the system, allowing the system to power on and off as needed.

Conclusion

The STM1001MWX6F PMIC is a high-performance device designed for low power applications. Its wide range of features, including adjustable soft start, an input over-voltage protection, 200kHz switching frequency, adjustable reset output time and low noise, makes it suitable for portable applications such as cell phones, PDAs, LCD modules and other embedded systems. In addition, its reliable system integration and extended input voltage range guarantee a steady and safe power supply for the system.

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