HV892 Datasheet | Supertex

Features - - Drives capacitive loads up to 200p F - - Programmable drive amplitude (patible with 40VRMS to 60VRMS lenses) - - On-chip boost converter - - No external inductor - - I2C interface - - Low operating current (≤20m A) - - Low standby current (≤1.0µA) - - Controlled drive edge reduces EMI - - 10-Lead 4x4mm DFN Package Applications - - Cell phone cameras - - PDA and ultrapact cameras - - Bar code readers - - Web and laptop cameras General Description The HV892 liquid lens driver is controlled via an I2C interface, is capable of driving capacitive loads of up to 200p F, and is patible with 40VRMS to 60VRMS lenses. A single byte (AMP) written to the HV892 controls the operation of the driver. Setting AMP = 01h to FFh controls output amplitude in 255 monotonic steps. Setting AMP = 00h causes the HV892 to go into low power standby mode, consuming less than 1.0µA. When active, the HV892...