LT3650IMSE-4.1#TRPBF

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The LT3650IMSE-4.1#TRPBF is a PMIC - Battery Chargers that provides high-accuracy, wide-input voltage range and high-power conversion from battery sources to multiple output voltages. It provides high-efficiency, up to 90%, at currents up to 3A. It features a noise-minimized current-mode control with an advanced constant on-time algorithm and an adjustable output voltage range with an adjustable output voltage discrimination limit.

The LT3650IMSE-4.1#TRPBF is designed to provide stable and accurate output voltage regulation for applications such as battery charger and point-of-load power supplies, as well as low quiescent current during low loads and low ripple voltage during high-loads. This device features a wide input voltage range to account for battery source variations and wide internal operating temperature ranges. It also features an Internal soft start, programmable overclock function, a programmable thermal foldback protection, and adjustable loop compensation.

The application field of the LT3650IMSE-4.1#TRPBF is as follows:

• Portable medical equipment
• Battery-powered applications
• Automotive applications
• Point-of-load power supplies
• Low dropout linear regulators
• Wireless communication devices
• Linear Li-ion battery chargers
• DC/DC converters

The working principle of the LT3650IMSE-4.1#TRPBF revolves around its noise minimized current-mode control. This control mode features an advanced constant on-time algorithm and provides the device with excellent output voltage transient performance following large load step changes. The device features a wide input voltage range to account for battery source variations and wide internal operating temperature ranges. It also features an Internal soft start, programmable overclock function, a programmable thermal foldback protection, and adjustable loop compensation.

When operating in a current-mode control, the output voltage regulation is achieved by controlling the peak inductor current and the on-time of the Pulse Width Modulated (PWM) control output. The peak current is proportional to the differential voltage between the battery source and the output voltage of the device. This differential voltage is also used to create an adjustable output voltage discrimination limit, or threshold. The device will shut off the internal PWM output when the output voltage exceeds this limit.

The LT3650IMSE-4.1#TRPBF also has several other protection mechanisms. One of them is the adjustable loop compensation, which is used to improve the transient load performance. The device also includes an adjustable soft start ramp, which controls the voltage and current ramp to reduce inrush current when the device is first enabled. A programmable overclock function is also included which allows the user to increase the pulse-width frequency from its default value of 250kHz when needed. Finally, the device also includes a programmable thermal foldback protection, which reduces the output voltage as the temperature of the device increases in order to protect the device from high temperatures.

In summary, the LT3650IMSE-4.1#TRPBF is a PMIC - Battery Chargers designed to provide stable and accurate output voltage regulation for applications such as battery charger and point-of-load power supplies. It features a wide input voltage range to account for battery source variations and wide internal operating temperature ranges. It also features an internal soft start, programmable overclock function, a programmable thermal foldback protection, and adjustable loop compensation.

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