AW86938SCSR

11V Fast Startup With F0 Detect And Tracking LRA Haptic Driver

Datasheet :

Product details

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

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

Technical documentation

Type	Title	Date
Product Design Guide	AW86938S Hardware Design Guide	2024-11-14
Product Design Guide	AW8693XS Software Design Guide	2024-12-02
Datasheet	DS_AW86938S_EN_V1.2	2025-05-14
New product launch	[New Product Launch] Technological Innovation! Awinic’s 6th-Generation High-Voltage Linear Motor Driver IC AW86938SCSR, Tailored for Silicon Anode Battery Requirements	2025-08-19

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

Evaluation board

AW86938CSP_EVB_V3.1 — It is suitable for performance evaluation board of Haptic chip AW86938CSR and AW86938SCSR, and used with motherboard

AW86938 and AW86938S chip EVB evaluation board

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Software development

DRIVER OR LIBRARY

HapticHv_Drivers — Android drivers for Haptic_Hv series.

Android drivers for Haptic_Hv series, including sample code, porting guide, debugging guide, etc.

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APPLICATION SOFTWARE&FRAMEWORK

AW86938S_GUI — AW86938S product tuning GUI plugin

AW86938S product tuning GUI plugin. Requires AwinicSCPV4 installed.

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APPLICATION SOFTWARE&FRAMEWORK

Haptic_M483KIDAE_MCU_FW — MCU common firmware for haptic EVB

MCU firmware for haptic EVB

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Hardware development

Evaluation board

AW86938CSP_EVB_V3.1 — It is suitable for performance evaluation board of Haptic chip AW86938CSR and AW86938SCSR, and used with motherboard

AW86938 and AW86938S chip EVB evaluation board

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Software development

DRIVER OR LIBRARY

HapticHv_Drivers — Android drivers for Haptic_Hv series.

Android drivers for Haptic_Hv series, including sample code, porting guide, debugging guide, etc.

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APPLICATION SOFTWARE&FRAMEWORK

AW86938S_GUI — AW86938S product tuning GUI plugin

AW86938S product tuning GUI plugin. Requires AwinicSCPV4 installed.

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APPLICATION SOFTWARE&FRAMEWORK

Haptic_M483KIDAE_MCU_FW — MCU common firmware for haptic EVB

MCU firmware for haptic EVB

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