MAX20069C

PRODUCTION

Automotive I²C-Controlled 4-Channel 150mA Backlight Driver and 4-Output TFT-LCD Bias

Industry's First Automotive TFT Bias with 4-Channel LED Driver

Data Sheet (Rev. 0) Product Selection Table

Part Models: 4
1ku List Price: price unavailable

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Part Details

4-Output TFT-LCD Bias Power
- 2.8V to 5.5V Input for the TFT-LCD Section
- Integrated 440kHz or 2.2MHz Boost and Buck-Boost Converters
- Positive and Negative 3mA Gate Voltage Regulators with Adjustable Output Voltage
- Flexible Resistor-Programmable Sequencing through the SEQ Pin
- Undervoltage Detection on All Outputs
- Low-Quiescent-Current Standby Mode
4-Channel LED Backlight Driver
- Up to 150mA Current per Channel
- 4.5V to 42V Input Voltage Range
- Integrated Boost/SEPIC Controller (440kHz or 2.2MHz)
- Dimming Ratio 10,000:1 at 200Hz
- Adaptive Voltage Optimization to Reduce Power Dissipation in the LED Current Sinks
- Open-String, Shorted-LED, and Short-to-GND Diagnostics
Low EMI
- Phase-Shift Dimming of LED Strings
- Spread Spectrum on LED Driver and TFT
- Selectable Switching Frequency
I²C Interface for Control and Diagnostics
- Fault Indication through the FLTB pin and I²C
Overload and Thermal Protection
-40°C to +105°C Ambient Temperature Operation
40-Pin (6mm x 6mm) TQFN Package with Exposed Pad

Part Models: 4
1ku List Price: price unavailable

Documentation

Data Sheet 1

MAX20069C: Automotive I²C-Controlled 4-Channel 150mA Backlight Driver and 4-Output TFT-LCD Bias Data Sheet (Rev.0) 02/07/2022

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX20069CGTL/V+	40-LFCSP-6X6X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX20069CGTL/V+T	40-LFCSP-6X6X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX20069CGTL/VY+	40-LFCSP_SS-6X6X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys
MAX20069CGTL/VY+T	40-LFCSP_SS-6X6X0.75	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN
No Match Found
Nov 11, 2021 - 2216 ELECTRICAL DATASHEET
		pcn_2216
MAX20069CGTL/V+	PRODUCTION
MAX20069CGTL/V+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Evaluation Kits

Evaluation Kit for the MAX20069/MAX20069B/MAX20069C

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Features and Benefits

Demonstrates Robustness of MAX20069
2.8V to 5.5V Input Range for TFT Power Section
4.5V to 42V Input Range for LED Driver Section
2.2MHz or 440kHz I²C programmable Boost and Inverted Buck-Boost Switching Frequency with Spread-Spectrum Option on TFT Power Section
2.2MHz or 440kHz I²C programmable Boost Frequency with Spread-Spectrum Option on LED Driver Section with four 150mA LED drivers
TFT Section Default Output Voltages (Stand-alone Mode)
+6V Output at 150mA (Step-Up Switching Regulator)
-6V Output at 100mA (Inverting Buck-Boost Switching Regulator)
+16V Output at 3mA (Positive-Charge Pump)
-7V Output at 3mA (Negative-Charge Pump)
HB LED String Output Currents Configurable for 20mA, 50mA, 100mA, 120mA or 150mA
Demonstrates Cycle-by-Cycle Current-Limit and Thermal-Shutdown Features on Boost LED Driver
Demonstrates Adaptive Voltage Optimization on LED Driver Section
I²C Programmability
Dedicated GUI
Proven PCB Layout and Thermal Design
Fully Assembled and Tested

Product Details

The MAX20069 evaluation kit (EV kit) demonstrates the MAX20069 IC, which is a highly integrated power supply plus LED backlight driver for automotive TFT-LCD applications. The EV kit is a fully assembled and tested surface-mount PCB that provides a complete powermanagement solution for small-size automotive displays. The EV kit demonstrates one buck-boost converter, one boost converter, two gate-voltage controllers, and a boost converter that powers a quad-string LED driver.

The EV kit can be configured to operate in stand-alone mode or in I²C mode.

The TFT bias portion of the EV kit operates from a 2.8V to 5.5V DC supply voltage. The step-up switching regulator (POS) is configured for a 4V to 18V output that provides up to 150mA. The inverting buck-boost converter (NEG) generates a negative output that tracks the positive output (down to a minimum of -7V) and provides up to 100mA. The gate-driver power supplies consist of regulated charge pumps that generate +28V (GVDD) and -21.5V (GVEE) and can deliver up to 3mA each.

The LED driver portion of the EV kit operates from a DC supply voltage of 4.5V up to the HB LED string-forward voltage. The EV kit can withstand a 52V load-dump condition. The EV kit also demonstrates the IC’s features, such as adaptive voltage optimization, Overvoltage and Undervoltage protection, cycle-by-cycle current limit, thermal shutdown, and digital PWM dimming operation using a digital PWM input signal to control the brightness of the HB LEDs.

The EV kit provides an I²C interface that can operate in conjunction with the MINIQUSB+* adapter board or a third party I²C master. The EV kit also includes Windows®- compatible software that provides a simple graphical user interface (GUI) for exercising the features of the IC.

*Note: To be ordered separately.

Applications

Automotive Central Information Displays
Automotive Dashboards
Automotive Head Up Displays
Automotive Navigation System

Resources

MAX20069EVKIT ODB File - Design Files
3.81M

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