LINEAR TECHNOLOGY LT3593 handbook

Update: 29 September, 2023

The LT3593 is a step-up DC/DC converter designed to drive up to ten white LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED currents and eliminates the need for ballast resistors. The device features a unique high side LED current sense that enables the part to function as a “one wire current source” where the low side of the LED string can be returned to ground anywhere. Additional features include output disconnect in shutdown, open LED protection and 1-pin shutdown/LED current control. The CTRL pin is toggled to adjust the LED current via an internal counter and a 5-bit DAC. The LT3593 switches at 1MHz, allowing the use of tiny external components. Constant frequency switching results in low input noise and a small output capacitor. The LT3593 is available in the 6-lead DFN (2mm × 2mm) as well as the 6-lead SOT-23 packages.

Brand: LINEAR

File format: PDF

Size: 184 KB

MD5 Checksum: 81B9B056B75133588F9894AA6E1C99DA

Publication date: 11 April, 2012

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PDF Link: LINEAR TECHNOLOGY LT3593 handbook PDF

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