MAX11835EWA+T

Overview

The MAX11835EWA+T is a tactile driver IC designed to drive various haptic actuators, including piezoelectric and electroactive polymer types. It integrates a boost regulator, pattern memory, and waveform generator within a single package. The device supports I2C communication for control and features a high-voltage boost switch capable of generating up to 30V. It operates with digital supply voltages ranging from 1.7V to 3.6V and analog supplies from 2.7V to 5.25V.

Feature Summary

• Supports multiple actuator types including single-layer and multi-layer piezoelectric and electroactive polymers
• Generates user-programmable waveforms such as sine, trapezoidal, square, and pulse shapes
• Integrates an internal DC-DC boost regulator and high-voltage boost switch for efficient power management
• Features intelligent low-power modes with automatic entry after haptic events

Applications

• Haptic feedback systems in consumer electronics with touch interfaces
• Driving piezoelectric actuators for custom tactile sensations
• Powering electroactive polymer actuators in advanced user interface devices

Procurement Notes

Verify the specific suffix +T indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official Analog Devices documentation. Ensure the design accommodates the required input voltage ranges for both digital and analog domains. Check for any obsolescence notices or lifecycle changes directly from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring precise control over complex haptic waveforms. It is suitable for applications needing integration of power regulation and signal generation in a compact form factor. Consider the I2C interface requirements and available GPIO pins on the host processor. Evaluate the thermal performance given the integrated boost converter capabilities.

Part Context

This part belongs to the Maxim Integrated line of specialized drivers for haptic feedback applications. It addresses the need for efficient, programmable tactile experiences in portable devices. The integration of power management and waveform generation simplifies the overall system architecture by reducing component count.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.