| Voltage Type |
Vbat |
| Vout (Max) (V) |
5.5 |
| SRAM (kB) |
4 |
| Istandby (μA) |
0.5 |
| IO Level (V) |
1.2
1.8
3.3 |
| AAE |
YES |
| Input Signal |
IIC
1TRIG |
| LRA Calibration |
LCC3.0 |
| Temperature |
-40℃~85℃ |
| TikTap |
YES |
| Package (mm) |
WLCSP 1.065X1.065-9B |
Features
1MHz I2C Bus
Integrated 4K Memory
8k/12k/24k/48k input wave sampling rate
F0 detect and tracking
Advance autobrake engine integrated
Playback mode:
Real time playback
Memory playback
Trigger playback
Cont playback
Tiktap Engine playback
Resistance-Based LRA Diagnostics
Drive signal monitor for LRA protect
Drive Compensation Over Battery Discharge
Fast Start Up Time: 0.2ms
Dedicated interrupt output pin
Support automatically switching to standby mode
VDD:Supply voltage range 1.8V to 5.5V
DVDD: Supply voltage range 1.7V to 5.5V
Standby current 4uA@DVDD=1.8V 0.5uA@VDD=4.2V
Short-Circuit Protection, Over-Temperature Protection, Under-Voltage Protection
Support ACH(Audio Couple Haptic)
Support AGH(Audio Generate Haptic)
Support LCC3.0(LRA intensity calibration)
AW86254AQNR(NOTE1) include Immersion IP license for mobile phones / wearables / home appliances / home electronic.
Applications
Mobile phones
Tablets
Wearable Devices
NOTE1: AW86254AQNR is identical to AW86254QNR except that AW86254QNR does not include the Immersion IP license. The two are collectively referred to as AW86254 in this article
AW86254 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 AW86254 an ideal candidate for haptic driver.
AW86254 integrates a 4KByte SRAM for user-defined waveforms to achieve a variety of vibration experiences, supporting 4 sampling rate(8k/12k/24k/48k) of waveforms loaded in SRAM, supporting output waveform sampling rate up-sampling to 48k.
AW86254 integrates an autobrake engine to suppress the aftershocks to zero for different drive waveforms (short or long) on different LRA motors.
AW86254 supports LRA fault diagnostic based on resistance measurement and protections of short-circuit, over-temperature and under-voltage.
AW86254 features configurable automatically switch to standby mode after haptic waveform playback finished. This can decrease quiescent power consumption. Interrupt output pin can detect real time FIFO status and the error status of the chip.
AW86254 features general settings are communicated via an I2C-bus interface, the I2C address(7-bit) is 0x58.
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