TSM101ACD

Series:	--
Packaging:	Tube
Part Status:	Active
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-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SO
Base Part Number:	TSM101

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PMIC - Battery Chargers: TSM101ACD Application Field and Working PrincipleBattery technology has seen a dramatic evolution over the past decade. Lithium-ion batteries are now the most common type of rechargeable batteries used in consumer electronics and automotive applications. With their small form factor, high energy density and no memory effect, these batteries have become the go-to option for safely storing energy for long-term use in an ever-growing variety of devices. To ensure the safety and longevity of lithium-ion batteries, these need to be connected to a power management integrated circuit (PMIC) and an external charger. One of the most popular PMICs used to manage battery charging is the Texas Instruments TPSM101ACD. This controller is optimized for powering small form factor lithium-ion batteries, and can be used in a number of applications, from consumer electronic devices to automotive and industrial applications. Let’s take a look at what makes the TPSM101ACD special and how it works. Features of the TSM101ACDThe TSM101ACD features current-mode switching so it can detect battery discharging and charging states, and switch accordingly. Additionally, it provides automatic sensing and switchover between adapter and battery power, making it an efficient and cost-effective solution for graceful system transitions.The device also has an integrated linear LED driver, allowing for LED lighting systems to be connected to the controller. It also offers short circuit protection and over-current protection, making it a reliable battery charger that works with a variety of batteries. The TSM101ACD also has a wide input range, allowing it to work with a range of adapters, from 5V to 12V. Working Principle of the TSM101ACD When the input voltage is within the specified range, it is then supplied to the TSM101ACD. The device then senses the presence of an adapter through its adapter detect pin and starts the charging process. If an adapter is detected, the ACOK signal is asserted to indicate the presence of the adapter and its availability.Once charging is enabled, the TSM101ACD regulates the current and voltage of the battery by the use of a Pulse Width Modulated (PWM) signal on the PG pin. This pin outputs a PWM signal to the adapter, which increases and decreases the charging current and voltage supplied to the battery. The TSM101ACD also features an internal linear LED driver, which allows users to regulate the current supplied to LEDs connected to the controller. This ensures that the LEDs are supplied with a stable current, preventing the LEDs from being damaged by sudden spikes in current. Once the battery has reached its target voltage and current, charging is stopped and the TSM101ACD asserts the battery good signal, ACOK, to indicate the completion of the charging process. ConclusionThe Texas Instruments TSM101ACD PMIC is an all-in-one controller that provides efficient and reliable battery charging capabilities for a variety of lithium-ion battery types. Its features, such as current-mode switching, automatic power over adapter and battery, LED driver, and protection, make it an ideal solution for consumer electronic, industrial and automotive applications. Its wide input range allows it to be used with a range of adapters, and its PWM output provides users with the ability to accurately control the current and voltage outputted to the battery.

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