Features and Benefits
- Four Regulated Output Voltages for Source- and Gate-Driver Power Supplies
- VPOS + VNEG = ±50mV Tracking Accuracy
- Measures Internal and Remote Diode Temperature Sensors
- True Shutdown on All Outputs
- 2.7V to 5.5V IN Supply Voltage Range
- Controlled Inrush Current During Soft-Start
- I²C Serial Interface for Temperature Read, Power Output Enable, POS Voltage Regulation Set-Point Adjustment, Power-Up/Power-Down Sequencing Adjustment, and Fault Monitoring
The MAX17135 is a complete power-management IC for E-paper displays that provides source- and gate-driver power supplies, a high-speed VCOM amplifier, and a temperature sensor.
The source-driver power supplies consist of a boost converter and an inverting buck-boost converter that generates +15V (up to +17V) and -15V (up to -17V), respectively. Both source-driver power supplies can deliver up to 200mA. The positive source-driver supply regulation voltage (VPOS) can be set either by using an I²C interface or by connecting an external resistor-divider. The negative source-driver supply voltage (VNEG) is always tightly regulated to -VPOS within ±50mV.
The gate-driver power supplies consist of regulated charge pumps that generate +22V (up to +40V) and -20V (up to -40V) and can deliver up to 20mA each.
The IC features a VCOM amplifier output whose output voltage is controlled by an internal 8-bit digital-to-analog converter (DAC). The DAC is programmable through an I²C interface and allows small-voltage-step sizes per DAC step.
The IC includes a temperature sensor that provides the ability to read the internal IC temperature and an external panel temperature with the use of an external temperature-sensing diode. Temperature output data is supplied through I²C.
The device is available in a space-saving, 32-pin TQFN package and is specified over the -40°C to
- e-Book Readers
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
MAX17135 Reliability Data1/12/2023161K
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.
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