fn7555 rev 3.00 page 1 of 2 september 1, 2016 fn7555 rev 3.00 september 1, 2016 ISL58303 800ma triple output laser diode driver data short to request the full datasheet, please visit www.intersil.com/products/ISL58303 the ISL58303 is a high-speed triple output laser diode driver designed to support color field sequential laser light source pico projection modules. outputs can be ganged together to achieve peak total current greater than 3.6a. output channels are designed with independent programmable bias and threshold adjustment to support a wide range of laser diode manufacturers. the ISL58303 offers exceptional power efficiency and a high degree of system integration allowing a compact and cost effective system design. to assist with reduction of laser speckle, this laser diode driver has a high frequency modulation input to modulate laser pulses. this can be used to achieve outputs pulses of less than 1ns. interface to the system is accomp lished via a high -speed serial bus that is made up of sen, sclk and sdio. initialization of internal registers after power-on reset, operational setup and laser intensity data for each output channel are communicated through this bus. for laser operational safety, a hardware enable signal (ce) is anded with an internal register bit. both have to be asserted to enable the device. this prevents an accidental fault causing an unwanted laser output. features ? complete triple programmable laser diode driver ? 800ma maximum output current per channel ? 1200ma peak output current per channel ? ganging of multiple channels as well as multiple chips can be done to meet the highest current demands ? ISL58303 has all n-mos output channels (i out1 , i out2 and i out3 ) for common anode laser diode configurations ? independent output channel enable ? programmable threshold dacs and color dacs for each channel ? supports high frequency modulation (hfm) that switches all 3 outputs in unison producing pulse widths of less than 1ns. ? fast spi serial interface ? space saving package: 24 ld 4mmx4mm tqfn applications ? rgb color field sequential laser projection system ? time of flight measurement systems ? high speed/high curren t laser diode systems figure 1. ISL58303 typical application lcos figure 2. ISL58303 typical application high current , 6 / 9 6 / 9 6 2 ( 1 ( 1 ( 1 & ( 6 ( 1 6 & / . 6 ' , 2 9 9 5 6 ( 7 , 2 8 7 , 2 8 7 , 2 8 7 9 7 2 9 / & r 6 ' 5 , 9 ( 5 0 & 8 ( / , 6 ( 7 + ) 0 ISL58303 v so ce sen sclk sdio mcu rset mon en2 en3 en1 5v hfm i out1 i out2 i out3
fn7555 rev 3.00 page 2 of 2 september 1, 2016 ISL58303 intersil products are manufactured, assembled and tested utilizing iso9001 quality systems as noted in the quality certifications found at www.intersil.com/en/suppor t/qualandreliability.html intersil products are sold by description on ly. intersil may modify the circuit design an d/or specifications of products at any time without notice, provided that such modification does not, in intersil's sole judgment, affect the form, fit or function of the product. accordingly, the reader is cautioned to verify that datasheets are current before placing orders. information fu rnished by intersil is believed to be accu rate and reliable. however, no responsib ility is assumed by intersil or its subsidiaries for its use; nor for any infrin gements of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of intersil or its subsidiaries. for information regarding intersil corporation and its products, see www.intersil.com for additional products, see www.intersil.com/en/products.html ? copyright intersil americas llc 2012-2016. all rights reserved. all trademarks and registered trademarks are the property of their respective owners.
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