Ultra-Low Power LRA Haptic Driver with Multiple Input Triggers and Software-Free Operation

R15DS0040EE0320 Rev.3.20

June 16, 2026

CFR0011-120-00

Page 13

overall solution cost. In the typical application case, only a single 100 nF decoupling capacitor is required. See

Section 10 and Section 11.

6.2

Functional Modes

6.2.1

System States

The device states and the transitions into and out of each state are shown in Figure 5. When a power supply is

applied on the VDD pin and VDDIO/EN pin is set high, DA7283 loads its initial boot settings. Once BOOT is

complete, DA7283 remains in the IDLE state, ensuring low power consumption and low start-up latency, and

awaits GPI triggering. DA7283 enters the DRIVE state and starts playback when one of the three GPI pins

receives a falling edge from the host controlling the device, see Section 6.2.2. On playback completion, caused

either by a GPI triggered sequence reaching its end or a second negative edge on any of the GPIs, DA7283

leaves the DRIVE state and returns to IDLE.

If a fault condition arises during playback, DA7283 cancels the ongoing playback and returns to the IDLE state.

Possible fault conditions include an UVLO event, an over-temperature event, a short circuit protection event, and

an actuator over- or under-impedance event.

IDLE

(IQ = 0.68 µA)

BOOT

Boot

complete

in 1.5 ms

OFF

(IQ = 5 nA)

DRIVE

Start driving

0.75 ms after GPI

trigger

VDD

V

VDDIOEN

V

Stop driving

after timeout

or GPI trigger

DA7283 returns to

the IDLE state in a

fault condition

Return to OFF at any

time if:

VDDIOEN = 0 V or

VDD < 2.6 V

Figure 5. System state diagram

NOTE

An optional one-time device configuration can be performed after the initial BOOT sequence by going once through the

DRIVE state via GPI_2, see Section 6.3.1.