VM149D Datasheet, PDF (10/12 Pages) Silicon Touch Technology Inc. – Programmable sinking output current

Application Circuit
VM149D
Application Notes
z The VM149D is a constant current driving IC for applications in Auto-Focus. The
supply voltage range VDD of VM149D is from 2.3V to 3.6V. The input range of
digital control pin PS, and digital I/O pins SCL and SDA, are defined such that
logic “High” is from 1.26V to VDD+0.4V and logic “Low” is from –0.4V to 0.54V.
Therefore, the three digital pins are suitable controlled by 1.8V ISP.
120mA, 10Bit Current Sinking VCM Driver with I²C Interface
Version：A.003
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