Skip to main content
Active
Haptic Drivers

CS40L51/52/53

Advanced Closed-Loop Haptic Driver with Integrated Boost and Waveform Memory

CS40L51/52/53 Overview

The CS40L51/52/53 family introduces Cirrus Logic’s first haptic driver solution reliability qualified in accordance with the AEC-Q100 automotive standard.

Designed with a fully integrated architecture, the CS40L51/52/53 family combines a high performance 15 V Class D amplifier, boost converter, voltage and current monitoring ADCs, waveform memory, and the powerful Halo Core™ DSP. This advanced platform simplifies design for engineers while delivering real-time closed-loop control to maximize actuator response and expand frequency bandwidth for richer haptic effects.

At the core is a suite of proprietary algorithms that dynamically adjust actuator performance using real-time voltage and current data. This ensures precise, stable, and high-definition haptic feedback across varying environmental and mechanical conditions.

CS40L51 – Combines advanced Sensor-less Velocity Control (SVC), real-time audio to haptics synchronization (A2H), and active vibration compensation (AVC) for immersive, high-fidelity feedback.

CS40L52 – Features the advanced closed-loop control SVC that optimizes the system haptic performance in real-time by reducing response time, increasing frequency bandwidth and compensating for manufacturing tolerances and temperature variation.

CS40L53 – Features the Click Compensation algorithm to enable consistent haptic feedback across systems by adjusting haptic effects based on the actuator manufacturing characteristics.

These features make the CS40L51/52/53 family ideal for a wide range of automotive applications such as steering wheels, center consoles, interactive displays, seats, smart surfaces and more.

Learn more about Cirrus Logic’s Automotive Haptic Solutions.

CIRRUS®
CIRRUS ROCKS®
ENGINEERED TO ROCK®
INNOVATION THAT ROCKS®

Product Features

  • Closed-loop hardware and algorithms (SVC)

    • Fast startup and braking for crisp/strong haptic feedback

    • Extended actuator bandwidth supports textured effects

    • Ensures consistent performance across actuator manufacturing variations, temperature, and aging

    • Removes need for factory production-line calibration

  • Integrated 15 V Class H boost converter

    • Provides high output power for fast closed-loop response

    • Enables consistent performance across battery conditions

    • Supports multiple actuators driven in parallel (3 Ω minimum)

  • Optimized low-latency and low-power hardware architecture

    • Ultrafast wake-to-haptics enables imperceptible latency between touch/press events and haptic feedback

    • Low-power Hibernate State with memory retention

    • ROM/RAM-stored waveforms triggered by I2C/SPI/GPIO

  • Haptics waveform memory

    • Simplifies system integration and reduces latency

    • Enables software-configurable vehicles

    • Stores PWLE and PCM waveforms in RAM

  • Commercial-grade device, AEC-Q100 Grade-2 qualified for automotive applications, operating temperature –40 to 105ºC

  • Package: 4x4.5mm, 34 pin, Wettable Flank QFN

Parametric Specifications

Control InterfaceSPI or I²C
GPI Inputs4 (with I²S/TDM) or 8 (w/o I²S/TDM)
Digital Power Supply (V)3.3 or 1.8
Boosted Amplifier Digital Power Supply (V)3-15
Max Boost Converter Voltage (V)18.5
Output Power (W)12.9
Target MarketAutomotive
FeaturesClosed-loop haptic solution with Sensor-less Velocity Control, Audio to Haptics, and Active Vibration Compensation (CS40L51); Closed-loop haptic solution with Sensor-less Velocity Control (CS40L52); Closed-loop haptic solution with Click Compensation (CS40L53)
Package34 QFN

Design Resources

Page 1 of 3
Browse all resources

Evaluation Boards

  • CS40L51, CS40L52 and CS40L53 Haptic Driver Evaluation Board (CDB40L5x-Q100)

    CS40L51, CS40L52 and CS40L53 Haptic Driver Evaluation Board (CDB40L5x-Q100)

    The CDB40L5x-Q100 evaluates the Cirrus Logic CS40L51, CS40L52 and CS40L53 haptic driver devices. Used with the Lochnagar 2 development platform, it supports two devices at once and SoundClear Studio tuning.

    Order SampleUser Guide
  • CDB6271-2 (Lochnagar 2)

    CDB6271-2 (Lochnagar 2)

    Cirrus Logic’s CDB6271-2 ('Lochnagar 2') is an evaluation and development platform with support for interchangeable daughter cards. It is designed to provide a variety of audio inputs and outputs to Cirrus Logic devices and to allow for configuring and programming them in a variety of possible use cases. The CDB6271-2 is designed to operate with the WISCE™ Development Tools Suite, which is a prerequisite for use of the board. The CDB6271-2 ('Lochnagar 2') support can be added to WISCE by installing the Device Pack, which also installs the necessary audio and communication drivers.

    Order SampleUser Guide

Software Packages

Loading CS40L5x_SCS_Package...

Sales Support

Select your location to find a sales representative or distributor for pricing, availability, and next steps for purchasing this product.
Contact location filters