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VM149B

SiTI
Part Number VM149B
Manufacturer SiTI
Description 10Bit Current Sinking VCM Driver
Published Jul 6, 2016
Detailed Description VM149B Version Issue Date File Name Total Page : A.001 : 2010/06/08 : SP-VM149B-A.001.doc : 13 110mA, 10Bit Current S...
Datasheet PDF File VM149B PDF File

VM149B
VM149B

Overview
VM149B Version Issue Date File Name Total Page : A.
001 : 2010/06/08 : SP-VM149B-A.
001.
doc : 13 110mA, 10Bit Current Sinking VCM Driver with I2C Interface 9 7 1 SILICON TOUCH TECHNOLOGY INC.
9-7F-1, Prosperity Road I, Science Based Industrial Park, Hsin-Chu, Taiwan 300, R.
O.
C.
Tel：886-3-5645656 Fax：886-3-5645626 VM149B VM149B 110mA, 10-Bit Current Sinking VCM Driver with I2C Interface General Specifications The VM149B is a VCM(Voice Coil Motor) driver IC with I2C interface control that is capable of programmable sinking output current.
It has a built-in internal voltage reference and operates with a supply voltage range from 2.
4V to 5.
5V.
The DAC is controlled by a signal transmit through a 2-wire I2C serial interface which operates in an I2C fast mode (400 kHz).
The VM149B is designed for applications such as image stabilization, auto-focus, in camera phones, and other portable module devices.
Features and Benefits z Programmable sinking output current z I2C serial interface z DAC with 10-BIT resolution z 2.
4V – 5.
5V power source z Selective Output Slew Rate Control(SRC) z Low voltage control for digital pin PS, SDA, and SCL(i.
e.
, VIH = 1.
4V @ VDD = 2.
8V) z Power saving mode leakage current 2.
4uA max.
z Power saving mode z Automatic power on reset z Ultra small package: WLCSP (0.
78mm*1.
27mm*0.
35mm) Ordering Information Part Number VM149B WLCSP Package WLCSP, 6Pin Marking TBD 110mA, 10Bit Current Sinking VCM Driver with I2C Interface Version：A.
001 、、， Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.
Page1 VM149B Terminology Resolution The DAC resolution is defined by the power factor of 2, which defines the number of distinct digitized levels.
N-bit resolution -> 2N distinct digitized levels Differential Nonlinearity (DNL) error The variation in digitized step value away from 1 LSB by any two adjacent digitized levels, gain and offset errors removed.
Integral Nonlinearity (INL) INL is a devia...


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