特性
1MHz I2C Bus
Integrated 3K Memory
12k/24k/48k input wave sampling rate
F0 detect and tracking
Advance autobrake engine integrated
Playback mode:
Real time playback
Memory playback
1 Trigger playback
Cont playback
Resistance-Based LRA Diagnostics
Drive signal monitor for LRA protect
Drive Compensation Over Battery Discharge
Fast Start Up Time ＜0.4ms
Reused interrupt output pin
Support automatically switch to standby mode
Standby current：3uA
Shutdown current：＜1uA
Supply voltage range 3 to 5.5V
Short-Circuit Protection, Over-Temperature Protection, Under-Voltage Protection
WLCSP 1.127mmX1.127mmX0.557mm-9B Package
AW86225A included Immersion IP license
AW86225B included Immersion IP and dedicated software license
说明
AW86225A/B is a low cost H-bridge, single chip LRA haptic driver, with F0 detecting and tracking based on BEMF, supporting real time playback, memory playback, Cont playback and hardware pin trigged playback with fast start up time. All these make the AW86225A/B an ideal candidate for haptic driver.
AW86225A/B integrates a 3KByte SRAM for user-defined waveforms to achieve a variety of vibration experiences, supporting 3 sampling rate(12k/24k/48k) of waveforms loaded in SRAM, supporting output waveform sampling rate up-sampling to 48k.
AW86225A/B integrates an autobrake engine to suppress the aftershocks to zero for different drive waveforms (short in long) on different LRA motors.
AW86225A/B supports LRA fault diagnostic based on resistance measurement and protections of short-circuit, over-temperature and under-voltage.
AW86225A/B features configurable automatically switch to standby mode after haptic waveform playback finished. This can less quiescent power consumption. The RSTN pin provides further power saving by fully shut down the whole device. Reused interrupt output pin can detect real time FIFO status and the error status of the chip.
AW86225A/B features general settings are communicated via an I2C-bus interface.
AW86225A/B is available in a WLCSP 1.127mmX1.127mmX0.557mm-9B package.
