TLC5917IDRG4

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TLC5917IDRG4 is an integrated circuit used in power management and control. It is a member of Texas Instrument\'s “TLC5917” family and is widely used in applications such as LED drivers and monitor back lighting. The device is capable of controlling current flow on multiple channels, allowing for customized and efficient power management solutions.The TLC5917IDRG4 is a multiple-channel, high-efficiency, low-power, charge-pump LED driver. It is designed to drive up to 6 strings of LEDs with an output current up to 40mA per channel. It has both voltage-based and current-based current regulation modes. With the current regulation, the TLC5917IDRG4 can regulate the output current of each channel, independent of the input voltage, ensuring one consistent level of brightness for the LED strings.The TLC5917IDRG4 has an integrated 6-bit constant current driver and an 8-bit current sense resistor. This helps to increase the efficiency of the LED driver by providing an accurate readout of the operating current. The current sense features allow for fine adjustments of the LED current to compensate for LED aging and LED string variation.The TLC5917IDRG4 also features a power Good (PG) signal output. The PG output is used to monitor the power status of the LED strings. This allows for monitoring for any possible current overload or over-temperature fault, ensuring safe and reliable operation of the driver.The TLC5917IDRG4 provides integrated protection features including short-circuit protection, EMI/RFI protection and thermal protection. These features help to ensure that the device is operating within the safe working ranges and limits of its specifications.TLC5917IDRG4 is ideal for LED driver applications such as street lights, interior/exterior commercial lights, residential and landscape lighting, and automotive lighting. It is also used in applications such as monitors, automotive displays and other lights.The TLC5917IDRG4 has several key elements that make it attractive to system designers. It offers low operating and standby currents (0.75 mA and 75 μA respectively) making it suitable for battery-operated systems. It also includes multiple protection features such as thermal shutdown and over-voltage protection.In summary, TLC5917IDRG4 is an ideal solution for high-efficiency, low-power, multiple-channel LED driver applications. It has an integrated 6-bit constant-current driver and an 8-bit current sense resistor, allowing for highly accurate current control. It also has an integrated power Good (PG) signal as well as integrated protection features, making it suitable for reliable and efficient operation in a wide range of LED driver applications.

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