S-1009C11I-I4T1U

Series:	S-1009
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Voltage Detector
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	--
Voltage - Threshold:	1.1V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	4-SMD, Flat Leads
Supplier Device Package:	SNT-4A

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Introduction

Power management integrated circuits (PMICs) are specialized chips designed to efficiently control the power delivery and related electrical signals to a wide range of applications. PMICs are used in various applications, such as, cellular phones, smartphones, LCDs, and other power-sensitive products.One of the categories of PMICs, known as Supervisors, includes devices that are typically used to monitor system voltages, power-up reset and detect if the power supply has been removed or if the power supply has shorted or if it is too weak to support the system.In this article we will discuss the application field and working principle of S-1009C11I-I4T1U, a PMIC Supervisor IC.

Application Field of S-1009C11I-I4T1U

The S-1009C11I-I4T1U is a PMIC Supervisor device designed to monitor various power supply voltage and other system related voltages. It is designed to provide protection against charge leakage, reverse powering and input voltage undervoltage.This device is most commonly used in portable applications, such as mobile phones, digital cameras, IOT devices and other power sensitive equipment. In these applications, it is used to monitor the system’s input voltage and power on/off reset conditions, as well as to detect if the power supply has been removed or if the power supply’s voltage is too weak to support the system.

Features of S-1009C11I-I4T1U

The S-1009C11I-I4T1U includes some of the following features:• Operating Voltage Range: 2.0 V to 5.25 V• On/Off Voltage Threshold Level: 2.35 V to 3.68 V• Input Voltage Range: 2.75 V to 4.7 V• Input Voltage Referenced: 0.1 V• Output Voltage Level: 0/1V• Low Current Consumption: 0.2uA• Reset Timing: 0.1ms to 1s• Overvoltage Protection Range: 4.65 V to 5.25 V• On-Chip ESD Protection: 8 KV• Package: TSSOP-8

Working Principle

The S-1009C11I-I4T1U works by monitoring the system’s input voltage and will activate its reset function when the voltage falls below its set threshold level.If the input voltage is above its threshold level, the S-1009C11I-I4T1U will provide a high voltage output and maintain the system in a reset state. If the voltage drops below the threshold voltage, the supervisor will provide a low voltage output, allowing the system to resume operations.The S-1009C11I-I4T1U will also monitor the system’s overvoltage protection range and provide a high voltage output when the input voltage is outside of this range to protect the system from damage.

Conclusion

In conclusion, the S-1009C11I-I4T1U PMIC supervisors are a reliable and cost-effective power management solution, ideal for portable applications. It offers low power consumption, reset timing, and overvoltage protection capabilities, making it a great choice for mobile devices and other power sensitive products.

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