TS19721DCS RLG

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Power Management Integrated Circuits (PMICs) and light-emitting diode (LED) drivers are devices that are increasingly being used to perform power management of small electronics. PMIC is a broad term for devices that are used to regulate or manage the use of power across devices or for power management. In particular, LED drivers convert an electrical signal into the voltage, current, or frequency of an LED. The TS19721DCS RLG is a power management IC specifically designed for low-power LED regulation and lighting applications.

The TS19721DCS RLG is a single-chip, temperature-compensated, constant current control LED driver. The device features an integrated 120mA constant-current low-side switch regulator and a low-profile shielded inductor. It operates with an input voltage range of 6.5V to 28V and a maximum LED operating current of 120mA with accurate current regulation. The TS19721DCS RLG can drive up to 30 LEDs and offers excellent efficiency, with a typical efficiency of 92%. Furthermore, the device offers low standby power and wide dimming range, allowing users to control the brightness of LEDs.

The TS19721DCS RLG was designed to meet the demanding requirements of a wide range of LED applications. It offers an adjustable charging current of 5, 10, 15, 20 mA, and a wide regulates current range of 10mA to 120mA. This ensures that the TS19721DCS RLG is suitable for a variety of applications, such as general lighting, boating, automotive and landscape lighting applications. The device also features a low standby current draw for extended battery life, as well as a low output ripple for smooth lighting.

The TS19721DCS RLG features a built-in current-sensing and voltage feedback loop. This loop allows the device to accurately regulate the LED current even with variations in the supply voltage or LED forward voltage. In addition, the TS19721DCS RLG’s temperature-compensating feature improves the accuracy of current regulation over a wide temperature range. This ensures that the device is capable of delivering stable and accurate illumination.

The TS19721DCS RLG includes a proprietary TrueSense dimming protocol that supports wide dimming range and smooth lighting control. This dimming protocol is based on the advanced pulse width modulation (PWM) technique, which is used to achieve a dimming range of 0.002% to 100%. The TS19721DCS RLG’s dimming range can be set to either discrete or continuous using the on-chip digital potentiometer.

The TS19721DCS RLG also includes a unique fail-safe protection feature that monitors the LED string voltage and current. When a fault is detected, the device will turn off the LED driver, protecting the LEDs from damage. Additionally, the device features a true open-circuit protection, which ensures safe operation even in the event of an open-circuit failure. This feature protects the LEDs from being destroyed due to undesirable current flow.

In conclusion, the TS19721DCS RLG is a power management IC that is specifically designed for low-power LED regulation and lighting applications. The device combines a highly efficient regulator with a low-profile output inductor, making it suitable for a variety of LED applications. Furthermore, the device features robust safety features, wide dimming range, discrete and continuous methods of dimming control, and temperature compensation for improved accuracy.

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