| Voltage Type |
Boost |
| Vout (Max) (V) |
PVDD=11V |
| SRAM (kB) |
8 |
| Istandby (μA) |
4.5 |
| IO Level (V) |
1.2
1.8
3.3 |
| AAE |
YES |
| Input Signal |
IIS
IIC
3TRIG |
| LRA Calibration |
LCC3.0 |
| Temperature |
-40℃~85℃ |
| TikTap |
YES |
| Package (mm) |
WLCSP 2.213X1.733-20B |
1MHz I2C Bus
8-KByte Memory
8k/12k/24k/48k input wave sampling rate
F0 detect and tracking
Advance autobrake engine integrated
Playback mode:
Real time playback(Up to 4KByte FIFO)
Auto dynamic sine playback
Memory playback
3 Trigger playback
One wire playback
Cont playback
I2S/TDM playback
Resistance-Based LRA Diagnostics
Drive signal monitor for LRA protect
Drive Compensation Over Battery Discharge
Fast Start Up Time ＜1ms
Boost output voltage up to 11V
VOUT=8.8V@Vbat=4.2V for 8Ω LRA
Standby current：4.5μA@Vbat=4.2V
Supply voltage range 2.3 to 5.5V
Short-Circuit Protection, Over-Temperature Protection, Under-Voltage, Battery Protection
AW86938SACSR(NOTE 1) include Immersion IP license for mobile phones and wearables
AW86938S is a high voltage H-bridge, single chip LRA haptic driver, with F0 detecting and tracking based on BEMF, with a boost converter up to 11V drive voltage inside, supporting real time playback, auto dynamic sine playback, memory playback, cont playback, one wire playback, I2S/TDM playback and hardware pin trigged playback. A typical startup time of 1ms makes the AW86938S an ideal haptic driver for fast responses.
AW86938S integrates a 8KByte 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.
AW86938S integrates an autobrake engine to suppress the aftershocks to zero for different drive waveforms(short or long) on different LRA motors.
AW86938S supports LRA fault diagnostic based on resistance measurement and protections of short-circuit, over-temperature and under-voltage.
AW86938S integrates a high-efficiency boost converter as the H-Bridge driver supply rail. The output voltage, maximum current limit and maximum boost current are configurable
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