| Voltage Type |
Boost |
| Vout (Max) (V) |
11 |
| SRAM (kB) |
8 |
| Istandby (μA) |
4 |
| 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(0.566) |
? 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：4uA@Vbat=4.2V
? Supply voltage range 2.7 to 5.5V
? Short-Circuit Protection, Over-Temperature Protection, Under-Voltage, Battery Protection
? AW86937AFCR and AW86938ACSR include Immersion IP license for mobile phones and wearables
? AW86937NFCR include Immersion IP license for notebook
AW86937/ AW86938 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, memory playback, and hardware pin trigged playback. A typical startup time of 1ms makes the AW86937 an ideal haptic driver for fast responses.
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