Product Bulletin
CS40L26/CS40L26B Product Bulletin
1 MBNovember 2021
Active
Haptic DriversCS40L26/26B
Smart Haptic Driver Enables HD Haptics on Mobile Devices for Enhanced Gaming, Videos and Music
CS40L26/26B Overview
The CS40L26/CS40L26B is the industry’s leading self-contained haptic driver IC that integrates a DSP and Class D digital boost converter to enable advanced closed-loop control of the actuator, HD enabled haptics and audio generated haptics for use in smartphones, tablets and wearables. Advanced sensor-less velocity control (SVC) provides real-time braking and consistent acceleration of the LRA, plus wider bandwidth and broader frequency range – essential features for gaming UX.
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Product Features
Advanced closed-loop control
Sensor-less velocity control
Widens LRA bandwidth for consistent performance
LRA protection
Low latency for real-time control of the haptic motor
Wakeup from Always on Haptic hibernate mode in 5 ms
Haptic driver features
11 V amplifier supply voltage for fast startup and braking
Short circuit protection
Programmable DSP
Faster processing - 130 MHz
Programmable effects
Easily design new haptics effects for UI/alerts/button replacement with state-of-the-art tools
On-chip ROM - 18 KB storage
Simplified tuning with advanced closed-loop automated characterization
Algorithm dynamically handles changes in actuator characteristics to eliminate the need to fine tune for long periods of time
Class D digital boost converter
2 MHz switching frequency
System protection
IC thermal self-protection against over temperature
Battery rail reactive brownout system protection
Android 12 simplified integration
Audio coupled haptics with I2S support
Open wave table and chirp with scalability supports haptics APIs, with on the fly haptic generation
Parametric Specifications
| Control Interface | SPI or I²C |
| GPI Inputs | 1 (with I²S/TDM); 3 (w/o I²S/TDM); 4 |
| Digital Power Supply (V) | 1.8 |
| Boosted Amplifier Digital Power Supply (V) | 2.5-5.5 |
| Max Boost Converter Voltage (V) | 11 |
| Output Power (W) | 5.3 |
| Target Market | Consumer |
| Features | Haptic DSP + Boost Class D Amplifier |
| Package | 30 WLCSP |
Design Resources
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