eOIS controller

Overview

The MSD4100WA is Memsic's single-chip driver for optical image stabilisation in voice coil motor (VCM) camera modules. It combines a linear Hall effect sensor, an H-bridge drive circuit and a PID control algorithm, and supports offset, sensitivity and linearity compensation. It comes in a 6-pin WL-CSP for mobile camera modules.

Built for

Smartphone camera modules
VCM image stabilisation
Compact mobile cameras

Key features

One-chip solution

Integrates the Hall sensor, driver and PID control for a VCM in one IC.

Silicon Hall sensor

A low-noise linear Hall sensor with a 16-bit ADC measures lens position.

Constant current driver

A 1-channel, 11-bit linear driver supplies up to 170 mA.

Built-in compensation

Supports offset, sensitivity and linearity compensation.

Fast I2C and I3C

I2C runs up to 3.4 MHz high-speed mode and I3C up to 12.5 MHz.

Tiny package

Packaged in a 6-pin WL-CSP of 0.63 x 2.37 x 0.315 mm typical.

Specifications

Function: eOIS driver IC for VCM
VDD: 2.65 to 3.6 V
IO voltage: 1.2 to 3.6 V
I2C: Fast, Fast Plus, HS (3.4 MHz)
I3C: Up to 12.5 MHz
Hall sensor: Si-based, 16-bit ADC
Control signal: 13-bit
Driver: 1-ch, 11-bit, 170 mA max
Package: 6-pin WL-CSP, 0.63 x 2.37 x 0.315 mm

Part number

Part	Sensor	Driver	Interface	Supply	Package	Notes
MSD4100WA	Si Hall, 16-bit ADC	1-ch, 11-bit, 170 mA	I2C (to 3.4 MHz), I3C (to 12.5 MHz)	VDD 2.65 to 3.6 V, IO 1.2 to 3.6 V	6-pin WL-CSP 0.63 x 2.37 x 0.315 mm	User-selectable I2C address

Specifications as published by Memsic. Configurations vary by model; we will confirm the exact build with your quote.