The MAX25014 is a 4-channel backlight driver IC with boost controller for automotive displays. The integrated current outputs can sink up to 150mA LED current each. The device accepts a wide 2.5V to 36V input volt­age range and withstands automotive load-dump events. The internal current-mode switching DC-DC controller supports boost or SEPIC topologies and operates in the 400kHz to 2.2MHz frequency range. Integrated spread spectrum helps reduce EMI. An adaptive output-voltage-control scheme minimizes power dissipation in the LED current-sink paths. Control is included for an external nMOSFET series switch to reduce quiescent current when the backlight is off and to disconnect the boost converter in the case of a fault. The device features I2C-controlled pulse-width-modu­lation (PWM) dimming and hybrid dimming. In either case, the minimum pulse width is 500ns. Phase-shifted dimming of the strings is incorporated for lower EMI. The MAX25014 is available in a 24-pin TQFN or 24-pin side-wettable TQFN (SWTQFN) package and operates over the -40°C to +125°C temperature range. Applications * Central Information Displays * Infotainment Displays * Instrument Clusters * Wide Voltage-Range Operation * Operates Down to 2.5V Supply After Startup * Survives Load Dumps Up to 40V * High Integration * Complete 4-Channel Solution Including Boost Controller * I2C Control for Minimum Parts Count * Robust and Low EMI * Spread-Spectrum Oscillator * Phase Shifting * 400kHz to 2.2MHz Switching-Frequency Range * nMOS Input Protection Switch * Multiple Diagnostic Features * LED-Current Measurement * Boost Output Voltage Measurement * LED Open/Short Detection and Protection * Boost Output Undervoltage and Overvoltage * Versatile Dimming Scheme Allows Hybrid or PWM-Only Dimming Using DIM Input or I2C * Dimming Ratio > 10,000:1 Using Hybrid Dimming * 10,000:1 Dimming Ratio at 200Hz Using PWM Dimming * Compact (4mm x 4mm) 24-Pin TQFN and SWTQFN Packages https://elecena.pl/product/22321868/automotive-low-input-voltage-ic-4-channel-150ma-backlight-driver 2022-12-27 https://elecena.pl/product/22321868/automotive-low-input-voltage-ic-4-channel-150ma-backlight-driver 2025-01-17