Series:	--
Packaging:	Tube
Part Status:	Obsolete
Battery Chemistry:	--
Number of Cells:	--
Current - Charging:	--
Programmable Features:	--
Fault Protection:	Over Voltage
Charge Current - Max:	--
Battery Pack Voltage:	--
Voltage - Supply (Max):	32V
Interface:	--
Operating Temperature:	-20°C ~ 85°C (TA)
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-DIP
Base Part Number:	TSM101

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Introduction

Power Management Integrated Circuit (PMIC) is a type of integrated device used to manage the power supply of an electronic system. It provides a variety of power supply options for the system and its sub-systems by converting, controlling, and managing the electrical power sent to the system. PMIC-Battery Chargers are a specialized type of PMIC’s used for managing the power supply to batteries. They regulate the power sent to the battery to ensure optimum performance of the battery in its intended system. One such PMIC-Battery Charger is the TSM101CN.

TSM101CN: Application Field and Working Principle

The TSM101CN is a single-channel linear charger optimized for use in small form factor, energy harvesting powered systems and applications demanding low quiescent current operation. It has a wide input voltage range (1.6V to 20V) with an adjustable charge current (2mA to 40mA). The charge current is controlled by an external resistor and selected by a single enable/disable pin. The device features a thermal shutdown circuitry, current limiting, and accurate charge current regulation.The TSM101CN is applicable in a wide range of battery charging applications, such as for keeping a battery topped off during low-high power-draw periods, and during normal operation. It is also suitable for trickle charging and maintenance of battery backup applications. The TSM101CN supports a wide assembly of battery types and sizes, such as NiCd, NiMH, and 3.2V lithium ion and lithium iron phosphate rechargeable batteries.The power management of the TSM101CN is based on a constant current/constant voltage (CC/CV) charge and are electrically isolated from the battery. In this configuration, the current is set to a constant level and the voltage rises until it reaches the battery’s maximum charge voltage. When the voltage rises to the defined voltage level, the current decreases as the battery starts to become saturated. Once the current reaches a minimum level, charge is stopped.

Features

The TSM101CN has a wide range of features that make it an ideal choice for battery charging applications. These include:– Wide input voltage range (1.6V to 20V)– Adjustable charge current (2mA to 40mA)– Thermally regulated current limiting– Accurate charge current regulation– Low quiescent current operation– Lightweight and small form factor– Output disconnect switch and thermal shutdown circuitry– ESD protection– Reverse voltage blocking & reverse current blocking– Constant voltage/ current (CV/CC) charging– Battery type select (NiCd, NiMH, Li-ion and LiFePO4)– Power monitoring pin– Short-circuit protection– Thermal shutdown options

Conclusion

The TSM101CN is a versatile and powerful PMIC-Battery Charger ideal for a wide range of battery charging applications. It features an extensive selection of features, such as a wide input voltage range, adjustable charge current, low quiescent current, and more. It supports multiple battery types, allowing it to be utilized in a variety of battery charging applications. The TSM101CN is small in size and lightweight, making it suitable for small form factor and energy harvesting powered systems.

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