DRV2605L Reference Design Circuit | Low Dropout Regulator Application Circuit

The DRV2605L haptic driver is a low voltage haptic driver that includes a haptic library and provides a closed loop actuator control system for high quality haptic feedback from ERM and LRA. This article mainly introduces the DRV2605L features, application range, reference design circuit and circuit analysis to help you shorten the design time.

DRV2605L features: drive compensation for battery discharge; wide voltage operating range (2V to 5.2V); high efficiency differential switch output drive; hardware trigger input

Typical application range of DRV2605L: mobile phone and tablet; watch and wearable technology; remote control, mouse and peripherals; touch device; industrial man-machine interface; electronic POS terminal

DRV2605L reference design application circuit:

Figure 1 Internal structure of DRV2605L

The DRV2605L device is a low-voltage haptic driver that relies on the back-EMF produced by an actuator to provide a closed-loop system that offers extremely flexible control of LRA and ERM actuators over a shared I2Ccompatible bus or PWM input signal. Improving improves in terms of acceleration consistency, start time, and brake time.

Figure 2DRV2605L reference design

The DRV2605L device offers a licensed version of TouchSense 2200 software from Immersion which eliminates the need to design haptic waveforms because the software includes over 100 licensed effects (6 ERM libraries and 1 LRA library) and audio-to-vibe features.

DRV2605L Chinese data sheet: Click to download

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