S-8254AAEFT-TB-G Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Not For New Designs
Moisture Sensitivity Level (MSL):	--
Function:	Battery Protection
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	3 ~ 4
Fault Protection:	Over Current
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	16-TSSOP

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Background of S-8254AAEFT-TB-G

The S-8254AAEFT-TB-G is a new type of low-power power management integrated circuit (PMIC) designed by Renesas Electronics America. It is specifically designed for the battery-powered application field. This PMIC offers 8105 mA maximum current output, features an inactive power state to support sleep/deep sleep modes, and provides an exceptionally efficient power conversion for multiple lines. It is also equipped with Load Discharge FET (LD FET) controller, thermal monitor, and overcurrent protection functions, making it suitable for battery-powered applications such as audio players, game consoles, wearable devices, portable medical devices, and automotive systems that require a low-power, highly efficient power management solution.

Application Field of S-8254AAEFT-TB-G

The S-8254AAEFT-TB-G is designed for a wide variety of battery-powered applications. The small form factor of this PMIC enables it to be used in portable devices such as audio players, game consoles, wearable devices, and portable medical devices. Its integrated LD FET controller, thermal monitor, and overcurrent protection functions make it ideal for very-low power applications, and its low standby current supports sleep/deep sleep modes Further, this PMIC can be used in automotive systems that require high-efficiency power conversion.

Working Principle of S-8254AAEFT-TB-G

The S-8254AAEFT-TB-G is a low-power, high-efficiency PMIC that features an inactive power state to support sleep/deep sleep modes. This PMIC utilizes a pulse frequency modulation (PFM) mode for better efficiency and control. In this PMIC, PFM works by varying the on and off time of an external P-channel power MOSFET. The on/off time is then used to regulate the output voltage, providing precision control with the lowest battery power consumption available. In addition, the S-8254AAEFT-TB-G offers temperature, voltage, and current monitoring to enable protective function and detect abnormal conditions. This PMIC also incorporates an automatic power-on reset (APOR) circuit, providing immediate reset and ensuring a safe initial operation of the system.

Conclusion

The S-8254AAEFT-TB-G is a low-power, highly efficient PMIC designed for battery-powered applications. Its compact form factor and wide range of features make it well-suited for audio players, game consoles, wearable devices, portable medical devices, and automotive systems. The S-8254AAEFT-TB-G uses a PFM mode for better efficiency and control, and incorporates temperature, voltage, and current monitoring for secure system operation. With its integrated LD FET controller, thermal monitor, automatic power-on reset (APOR) circuit, and low-power inactive state, the S-8254AAEFT-TB-G is an ideal battery management solution for a wide variety of applications.

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