Status: In Production
The HV5523 is a low-voltage serial to high-voltage parallel converter with open drain outputs. This device has been designed for use as a driver for AC-electroluminescent displays. It can also be used in any application requiring multiple output high voltage current sinking capabilities, such as driving inkjet and electrostatic print heads, plasma panels, and vacuum fluorescent or large matrix LCD displays. This device consists of a 32-bit shift register, 32 latches, and control logic to perform the polarity selection and blanking of the outputs. Data are shifted through the shift register on the high to low transition of the clock. The HV5523 shifts in a counter-clockwise direction when viewed from the top of the package. A data output buffer is provided for cascading devices. This output reflects the current status of the last bit of the shift register. Operation of the shift register is not affected by the LE (latch enable), BL (blanking), or POL (polarity) inputs. Transfer of data from the shift register to the latch occurs when the LE (latch enable) input is high. The data in the latch is stored when LE is low.
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