KTD2052 12-Channel RGB LED Drivers with I²C Control
■The KTD2052 is a fully programmable current regulator for up to four RGB LEDs (12 LEDs total). The device is ideally powered from a supply rail in the 3V to 5V nominal range. A 4-wire bus is multiplexed to reduce the pin-count and PCB traces to the LEDs. Each pin on the bus integrates a switch to the input voltage and a programmable low-dropout current sink regulator
■There are four versions: the KTD2052A/C are defaulted disabled at initial power-up, while the KTD2052B/D execute an AutoBreathe™ pattern by default at initial power-up or when reset. The KTD2052A/B use 0x74 7-bit I2C slave address, while the KTD2052C/D use 0x75. See the Ordering
Information section.
■The I²C control interface is used to set the on/off status and individual LED currents, as well as adjust the fade-rate. An internal flexible pattern generator with watchdog counter enables set-and-forget pattern executions, while more complex patterns may be executed from system firmware via the I2C interface.
■BrightExtend™ optionally reduces dropout when the input voltage is too low for the forward voltage of the LEDs. Programmable CoolExtend™ prevents excessive heat when the input voltage, current settings, and ambient temperature are high.
■The KTD2052 is packaged in RoHS and Green compliant 2mm x 2mm UDFN package
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KTD2052 、 KTD2052AEVAA-TR 、 KTD2052BEVAA-TR 、 KTD2052CEVAA-TR 、 KTD2052DEVAA-TR 、 KTD2052A 、 KTD2052B 、 KTD2052C 、 KTD2052D |
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12-Channel RGB LED Drivers 、 fully programmable current regulator |
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[ AI Smart Speakers ][ Bluetooth Loudspeakers ][ WiFi Loudspeakers ][ Automotive Indicator ][ Ambiance Lighting ][ IoT ][ Gaming ][ Toys ][ Indicator ][ Button Lighting ] |
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Datasheet |
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Please see the document for details |
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UDFN;UDFN22-8 |
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English Chinese Chinese and English Japanese |
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October 2021 |
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Revision 04b |
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2.8 MB |
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