MAX20092ATJ/VY+ Analog Devices

ABRIDGED DATA SHEET Click here for production status of specific part numbers. MAX20092 12-Switch Matrix Manager for Automotive Lighting General Description Benefits and Features The MAX20092 12-switch matrix manager IC for auto- Automotive Ready: AEC-Q100 Qualified motive lighting applications includes a 12-switch array Flexible Configuration Allows the Use of the Same for bypassing individual LEDs in a single- or dual-string Device in Different Applications application. It features 12 individually controlled n-channel Single-, Dual-, and Quad-String Configurations MOSFET switches rated for 10V with on-resistance of Up to 12 Switches in Series in Single-String 0.100. A single current source can be used to power Configurations all the LEDs connected in series. Individual LEDs can be Up to 6 Switches in Series in Dual-String dimmed by turning on and off the bypass switches across Configurations each LED, and can also be configured in 2 strings with 6 Up to 3 Switches in Series in Quad-String switches in series per string and 4 strings with 3 switches Configurations per string. A separate current source powers each string. Up to 2 LEDs per Switch Each switch can be connected across 1 or 2 LEDs in Optimal PWM Dimming Arrangement Provides series. The IC also includes an internal charge pump Excellent Dimming Performance that provides power for the gate drive of each of the LED Programmable 12-Bit PWM Dimming bypass switches. The low on-resistance of the switches Fade Transition Between PWM Dimming States minimizes conduction loss and power dissipation. Internal Clock Generator or External Clock for The IC features a serial peripheral interface (SPI) for PWM Dimming serial communication. The MAX20092 is a slave device Protection Features and Package Improve Reliability that uses the SPI to communicate with an external micro- Open-LED Protection controller (C), which is the master device. Each of the Programmable Open-LED and Shorted-LED 12 switches can be independently programmed to bypass Threshold the LEDs across each of the switches in the string. Each Open- and Shorted-LED Fault Reporting switch can be turned fully on, fully off, or dimmed with or Thermally Enhanced 32-Pin SWTQFN Package without fade-transition mode. The PWM frequency can be set by an internal oscillator or set to an external clock Ordering Information appears at end of data sheet. source. The IC features open-LED protection as well as open- and short-LED fault reporting through the SPI. The MAX20092 is available in a 32-pin (5mm x 5mm) side- Simplified Block Diagram wettable TQFN (SWTQFN) package with a thermally enhanced exposed pad. EXTERNAL CURRENT SOURCE 4.5V TO 5.5V Applications IN DRAIN11 MAX20092 CPP Automotive Front-Light Systems CHARGE PUMP CPN DRAIN10 Automotive Tail-Light Systems VDDIO DRAIN9 Automotive Matrix-Lighting Systems SCSB SDIN SERIAL REGISTERS PERIPHERAL AND INTERFACE CONTROL SDOUT MICRO- (SPI) LOGIC CONTROLLER SCL DRAIN1 FAULTB FAULT LOGIC DRAIN0 CLK OSCILLATOR SRC0 19-100310 Rev 1 11/19ABRIDGED DATA SHEET MAX20092 12-Switch Matrix Manager for Automotive Lighting Ordering Information PART TEMP RANGE PIN-PACKAGE MAX20092ATJ/VY+ -40C to +125C 32 SWTQFN-EP* MAX20092ATJ/VY+T -40C to +125C 32 SWTQFN-EP* /V Denotes an automotive-qualified part. +Denotes a lead(Pb)-free/RoHS-compliant package. SW = Side-wettable TQFN package. *EP = Exposed pad. T = Tape-and-reel package. Maxim Integrated 62 www.maximintegrated.com