IS31FL3730-QFLS2-TR ISSI

IS31FL3730 AUDIO MODULATED MATRIX LED DRIVER May 2018 GENERAL DESCRIPTION FEATURES IS31FL3730 is a LED matrix driver which features an 2.7V to 5.5V supply audio modulation display mode and a general LED dot I2C interface, automatic address increment matrix display mode. The default configuration of function IS31FL3730 is to drive a single 88 LED matrix. Rising edge of SDB reset I2C module However, IS31FL3730 may be configured to drive Internal reset register either one or two 88, 79, 610, or 511 dot matrix Programmable single or dual 88, 79, 610, or display(s). The intensity of any matrix picture can be 511 LED matrix display mode modulated by an audio signal. One-time programming, internal scan In matrix display mode, the rows and columns of the Audio modulated display intensity with digitally matrix are internally scanned, requiring only one time programmable input gain programming of the individual LED on or off state, thus Internal registers to digitally adjust display eliminating the need for real time system resource intensity utilization to perform the row and column scanning Modulate LED brightness with 128 different items function. in PWM In the general purpose mode, the ON or OFF condition One address pin with 4 options to allow four I2C of each individual LED in the display matrix is slave addresses programmed via an I2C interface. Over-temperature protection IS31FL3730 is available in QFN-24 (4mm 4mm). It QFN-24 (4mm 4mm) package operates from 2.7V to 5.5V over the temperature range APPLICATIONS of -40C to +85C. Mobile phones and other hand-held devices for LED display LED in home appliances TYPICAL APPLICATION CIRCUIT Figure 1 Typical Application Circuit Dual 88 Note 1: The IC should be placed far away from the mobile antenna in order to prevent the EMI. Lumissil Microsystems www.lumissil.com 1 Rev. C, 04/02/2018 IS31FL3730 Figure 2 Typical Application Circuit Dual 79 Figure 3 Typical Application Circuit Dual 610 Figure 4 Typical Application Circuit Dual 511 Lumissil Microsystems www.lumissil.com 2 Rev. C, 04/02/2018