TLD55412QVXUMA1

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The TLD55412QVXUMA1 is an integrated 2-channel Constant Current LED Driver optimized for driving Power LEDs. This device is classified under PMIC - LED drivers. Primarily, it is an Audio subsystem and Bluetooth power scheme solution for wearables and other devices that require a high degree of integration. This device gives users the extra feature of excellent audio playback with added LED drivers and power management using TI’s latest technology.The TLD55412QVXUMA1 contains two control channels along with several auxiliaries such as reference voltage, bias current controlling and current sensing. It also contains integrated regulators, reset, clock and peripheral control circuitry built into the programmable registers of the device. It provides easy implementation of AC and DC LED dimming options.The TLD55412QVXUMA1 works on a pulse-width modulation (PWM) dimming technique using a continuous phase dimmer (DIM) input. The device includes two channels that each have an internal constant current source of up to 0.2A per channel. The LED driver can run at VDD and VBAT between 2.3 V to 5.5 V and accepts a LED string current of up to 0.6A per channel.The main features of the TLD55412QVXUMA1 include fast signal rise and fall time of 50 ns with automatic dimmer compensation, a latch-up protected architecture, and a wide dimmer driving range of 4.5V to 24V. The device is compatible with 1-bit, 2-bit and 3-bit binary, 8-bit PWM and analog dimming feature. It also provides a 10-bit grayscale output in an external I2C interface. The advantages of using this device are low power (up to 85% efficient), wide dimming range, and flexibility in controlling the LED system.The TLD55412QVXUMA1 is mainly used for controlling LEDs in personal audio products and Bluetooth solutions. It is ideal for headphones, wireless speakers and TVs with lights. It can also be used in automotive applications such as interior lighting, DRL, marker lights, fog lamps and turn signals. This device works for any application that involves controlling of LEDs with a dimming scheme.In summary, the TLD55412QVXUMA1 is an integrated dual-channel constant current LED driver designed for driving power LEDs with an output current of up to 0.2A per channel. This device is classified under PMIC - LED drivers, optimised for controlling LEDs in personal audio applications and Bluetooth solutions. It receives an external dimmer signal, such as a 1-bit PWM or 4.5V to 24V DC signal. The device offers a fast signal rise and fall time, latch-up protected architecture, wide dimming range and flexibility in controlling the LED system.

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