BD45422G-TR Integrated Circuits (ICs)

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The BD45422G-TR is a supervisory circuit belonging to a type of Power Management Integrated Circuits (PMIC). It is a low operational power consumption device that prevents overdischarge and overcharge conditions in Lithium-Ion (Li-Ion) batteries. With its two-level delay watchdog function, it increases the robustness of a system. The BD45422G-TR is an ideal safety-oriented supervisor that is suitable for portable applications such as digital still cameras and mobile phones.

The BD45422G-TR has two primary functions: battery discharge detection and charge control. The discharge detection function is used to monitor the battery voltage and prevent overdischarge by threshold voltage detections. If the voltage of the battery drops to a predetermined level, the discharge detection circuit triggers an alarm. The charge control function works with the main charge control switch of Li-Ion-battery charging control ICs. This function monitors the battery voltage during charging, and if the voltage exceeds the predetermined voltage level, it shuts down the charge control IC.

The BD45422G-TR is also equipped with a two-level delay watchdog function which generates reset pulses for application systems. When a reset signal is issued, the reset circuits enter a debugging mode and allow the user to debug the device without a need of a power cycle. With its two-level delay watchdog function, the BD45422G-TR can detect occurences of a reset signal and automatically trigger a reset pulse in order to prevent any malfunction of the device.

The BD45422G-TR also features an accurate low dropout linear regulator that supports output voltages ranging from 1.8 to 3.6V. This voltage range can be further adjusted in steps of 0.1V. Additionally, the BD45422G-TR has an on-chip crystal oscillator which provides a stable clock signal, eliminating the need for an external oscillator.

The BD45422G-TR is an ideal choice for those who need a highly integrated and low operational power consumption supervisor for systems with Li-Ion batteries. With its fast response and high accuracy voltage step down converter, it allows for a stable and reliable power supply. With its two-level delay watchdog function, the BD45422G-TR can monitor system reset signals and take appropriate actions, ensuring that the device is always stable and reliable. Overall, the BD45422G-TR is an ideal choice for those who want a reliable and integrated supervisor device.

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