TPS62110RSARG4

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TPS62110RSARG4 is a programmable current and voltage regulator designed by Texas Instruments (TI) for efficient, low-power conversion of battery-powered applications. It offers generous margin for adjusting input and output voltages and provides independent voltage, current, and power settings for both the charging path and the load path. The TPS62110RSARG4 includes an LED brightness controller, allowing for variable LED brightness setup and a frequency jittering, which helps to maintain the efficiency of the system.

Application Fields:
The TPS62110RSARG4 is a DC-DC switcher regulator primarily used in mobile and portable applications needing a compact, low-power solution. The device can be used in consumer electronics, computing, automotive, and communications markets. It is ideal for power supplies, battery protection, and serving as a precision current regulator. The device is also suitable for powering on-board lithium-ion battery protection circuits and power management processors.

Working Principle:
The TPS62110RSARG4 works by using a closed-loop control in combination with a charge pump boost converter, the device is capable of regulating both voltage and current. The input voltage is regulated in order to provide a steady current to the output at all times. The device uses an effective current management algorithm that effectively maintains the output voltage as the input voltage varies. In addition, the device is also able to switch between high and low power mode in order to save battery power, reducing the overall power usage.

The control loop of the device maintains the output voltage and the current by continuously comparing the actual output voltage to the reference voltage generated from an external power supply. If the actual output voltage is below the reference voltage, the control loop drives the MOSFET switch on for a longer time, allowing more current to flow to the load. Conversely, if the actual output voltage is higher than the reference voltage, the control loop drives the MOSFET switch off for a longer time, reducing the current drawn from the load.

The MOSFET switch is also used to control the LED brightness in LED backlighting applications. By controlling the duty cycle of the MOSFET switch, the average current through the LED array can be regulated, allowing for variable LED brightness. The frequency jittering feature helps to maintain high efficiency by randomizing the pulse frequency of the MOSFET switch in order to reduce electrical noise and reduce EMI.

The TPS62110RSARG4 is a highly-efficient, low-power regulator with generous current and voltage margin, making it ideal for powering low-power devices. With its low quiescent current and high-efficiency, it ensures that battery power is not wasted.

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