LT1769IGN#TRPBF

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LT1769IGN is a monolithic power management integrated circuit (PMIC) designed for chargers used in battery-powered systems. It functions as a controller to ensure that the charging current and voltage is maintained within specified limits. The IC consists of an internal MOSFET driver, current sense amplifier, and a voltage reference, which ensures that the system’s battery is charged safely. This device can also be used to monitor the system’s battery voltage.

The LT1769IGN offers a wide input voltage range (2.7V - 6.5V) and it is optimized for single-cell lithium-ion battery charging applications. It can charge the battery between 4.2V and 3.45V for maximum battery life. The device can be configured for constant current (CC), constant voltage (CV), and pre-conditioning functions. It also features several safety features including over-voltage, over-current, thermal shutdown, and short-circuit protection.

The LT1769IGN also has selectable charging rates, which can be adjusted by an external resistors. It also features soft-start and high-impedance boost, which facilitate charging current and voltage handshaking during battery pre-conditioning. The LT1769IGN can operate in PWM and PFM modes, depending on the external component selection, board layout, and battery ESR.

The LT1769IGN is a cost-effective, single-package PMIC ideal for low-power battery-powered systems. It is available in several different packages and it is lead(Pb) and halogen-free, making it suitable for use ingreen applications. The LT1769IGN is also specified for operation up to 150°C junction temperature.

The LT1769IGN is used in manyBattery PoweredSystems, including portable medical devices, smartphones, wearables, and IoT devices, among others. It is also used in sensing, monitoring and control applications requiring high-accuracy current and voltage sensing and pulse-width modulation (PWM) regulation. Its compact size and low power consumption makes it an ideal solution for space-constrained, battery-powered applications.

In conclusion, the LT1769IGN is a highly integrated, cost-effective PMIC designed for battery-powered systems. Its wide input voltage range, selectable charging rates, and various safety features make it an ideal power management solution for portable electronics. Its low-power consumption and compact size make it a popular choice for applications that are space-constrained or require high-accuracy current and voltage sensing and pulse-width modulation (PWM) regulation.

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