LM3420M5-8.4

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Battery Chemistry:	Lithium-Ion
Number of Cells:	2
Current - Charging:	--
Programmable Features:	--
Fault Protection:	--
Charge Current - Max:	1A
Battery Pack Voltage:	8.4V
Voltage - Supply (Max):	20V
Interface:	--
Operating Temperature:	-40°C ~ 85°C (TA)
Package / Case:	SC-74A, SOT-753
Supplier Device Package:	SOT-23-5
Base Part Number:	LM3420

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Introduction to the LM3420M5-8.4 PMIC - Battery Charger

The LM3420M5-8.4 PMIC - Battery Charger is a specific integrated circuit that enables efficient, effective and reliable charging of a battery from a DC power source. It is designed for use within a range of portable electronic devices, including laptops, smartphones, tablets and e-bikes. The PMIC - Battery Charger is an easy-to-use, cost-effective device that is highly efficient and reliable.

Overview of the LM3420M5-8.4 PMIC - Battery Charger

The LM3420M5-8.4 PMIC - Battery Charger is an advanced battery charger IC that offers a wide range of features and benefits. It is designed to provide efficient, cost-effective and reliable charging of lithium-ion and Li-polymer batteries. Its advanced features include protection circuitry, adjustable load current and wide input voltage range. The LM3420M5-8.4 PMIC - Battery Charger is suitable for use in systems with up to 8.4V battery voltage.

Key Features of the LM3420M5-8.4 PMIC - Battery Charger

The LM3420M5-8.4 PMIC - Battery Charger is an advanced device that provides a number of beneficial features for charging lithium-ion and Li-polymer batteries. These key features include:• Adjustable current: The charger can be adjusted to provide charging current from 50mA to 800mA.• Protection Circuits: The device includes a number of sophisticated built-in protection circuits, including short-circuit, over-temperature and over-voltage protection circuits, to ensure reliable and safe operation.• Wide Input Voltage Range: The device is able to operate from a wide input voltage range, from 4.5V to 18V.• Stand-By Current: The charger has an ultra-low stand-by current of 1.5µA.• Thermal Shutdown: The device includes a thermal shutdown circuit which reduces the current flow when the temperature of the charger exceeds the pre-set limit.• Automatic Recharge Cycle: The charger automatically recharges a partially charged battery, when the battery voltage drops below the pre-set threshold.• Charging Status Monitoring: The device includes an internal charging status monitoring function, which monitors the charging status and prevents overcharging.

Application of the LM3420M5-8.4 PMIC - Battery Charger

The LM3420M5-8.4 PMIC - Battery Charger is a versatile device and is suitable for use in a wide range of applications. These include:• Smartphones• Digital Cameras• Wearable devices• Power tools• Medical devices• Portable consumer electronics• Industrial and automotive applications

Working Principle of the LM3420M5-8.4 PMIC - Battery Charger

The LM3420M5-8.4 PMIC - Battery Charger is an integrated circuit that is designed to charge lithium-ion and Li-polymer batteries. It works on the principle of buck-boost converter. The charger takes input voltage from a DC power source and then steps it down to a lower voltage. This lower voltage is then used to charge the battery.The charger includes built-in circuitry to ensure effective and efficient charging. This includes a number of protection circuits to protect the charger, battery and any connected device. It also includes an internal charging status monitoring circuit which helps to ensure that the battery is not overcharged or undercharged.

Conclusion

The LM3420M5-8.4 PMIC - Battery Charger is an advanced integrated circuit designed for charging lithium-ion and Li-polymer batteries. It provides a number of key features and benefits including adjustable current, protection circuits, wide input voltage range, stand-by current, thermal shutdown and charging status monitoring. The device is suitable for use in a wide range of applications, including smartphones, digital cameras, wearable devices and industrial and automotive applications. It works on the principle of buck-boost converter and includes built-in circuitry to ensure efficient, effective and reliable charging of batteries.

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