CS40L25/25B

Haptic driver

• 11 V amplifier supply voltage MAX for fast startup and braking

• Short circuit protection

• Compatible with LRA impedances as low as 6 Œ©

• Class D architecture with adaptive output stage reduces idle power consumption, switching loses

Programmable DSP

• Run real-time algorithms with reduced latency and reduced integration effort

• Larger memory for more haptic effects

• Eliminate complicated integration across platforms for running Audio-2-Haptics

Class H digital boost converter

• 85% overall efficiency boost

• Programmable boost voltages up to 11 V

• High bandwidth digital control loop

• 2 MHz switching frequency

• Pulse skipping mode for improved efficiency during low power quiescent operation

Low latency for real time control of the haptic motor

• Always-on listening to haptic trigger

• Reduce time from trigger to achieving desired acceleration on the LRA

• Wakeup from AoH hibernate mode in 5 ms

• < 20 ŒºA AoH hibernation

• Provides performance consistency over voltage, temperature and external factors

  • No loss of acceleration strength of the LRA

Crisp, clean haptic performance

• Can overdrive the motor for strong performance

• Stopping the LRA immediately for crisp haptics with no ringing/buzzy effects

Closed-loop control for strong haptic effects and force-sensitive interface

• Button replacement to enable new user experiences

• Localized haptics

Simplified tuning

• Almost like plug and play

• Algorithms dynamically handle changes in actuator characteristics to eliminate the need to fine tune for long hours