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MAX6970 - 36V Constant-Current LED Driver

Description

The MAX6970 serial-interfaced LED driver provides eight open-drain, constant-current-sinking LED driver outputs rated at 36V.

The device operates from a 3V to 5.5V supply.

The MAX6970 supply and the LEDs’ supply can power up in any order.

Features

  • 25Mbps Industry-Standard 4-Wire Serial Interface at 5V.
  • 3V to 5.5V Logic Supply.
  • Eight Constant-Current LED Outputs Rated at 36V.
  • Up to 55mA Continuous Current per Output.
  • Output Current Programmed by Single Resistor.
  • 3% Current Matching Between Outputs.
  • 6% Current Matching Between ICs.
  • -40°C to +125°C Temperature Range Ordering Information PART TEMP RANGE MAX6970AUE -40°C to +125°C MAX6970AAE -40°C to +125°C.
  • EP =.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-3890; Rev 0; 10/05 EVAALVUAAILTAIOBNLEKIT 8-Port, 36V Constant-Current LED Driver MAX6970 General Description The MAX6970 serial-interfaced LED driver provides eight open-drain, constant-current-sinking LED driver outputs rated at 36V. The device operates from a 3V to 5.5V supply. The MAX6970 supply and the LEDs’ supply can power up in any order. The constant-current outputs are programmed together up to 55mA using a single external resistor. The MAX6970 operates with a 25Mbps, industry-standard, 4-wire serial interface. The MAX6970 uses the industry-standard shift-registerplus-latch-type serial interface. The driver accepts data shifted into an 8-bit shift register using data input DIN and clock input CLK.
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