MD218A SITI [Silicon Touch Technology Inc.], MD218A Datasheet - Page 14

• Manufacturer Part Number: MD218A
• Description: 130mA, 10Bit Current Sinking VCM Driver with I2C Interface
• Manufacturer: SITI [Silicon Touch Technology Inc.]

SP-MD218A-A.001.doc
The I2C bus would not be well controlled by master if VDD of Driver IC is
shutdown(i.e., not applying voltage on VDD pin) because of ESD diode turning on
via P-diode of SDA/or SCL. To avoid the application issue, NOT to turn off VDD of
driver IC during whole module operation. It could be controlled by PD pin via
GPIO of ISP. The power consumption of Driver IC should be 1.4uW in the
standby mode (PD = L).
In order to ensure the stability of output current, a compensation capacitance C
is suggested placing across the two terminals of VCM. The suggested value of C
is about 0.1~0.22uF and could be fine tuned for different VCM.
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
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A.001
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