HV500

The HV500 is a monolithic low-voltage logic to high-voltage output 32-chan nel driver for AC plasma flat panel displays. It is manufactured using the HVCMOS process, providing the high output voltages and currents possible with DMOS structures and the low power dissipation of CMOS logic. The HV500 is comprised of an 8-stage DMOS shift register, four groups of eight high-voltage output buffers, and logic to select which group of outputs will reflect the status of the data in the shift register and strobe functions. When the strobe input is high, all outputs are held low independent of any other logic input. When strobe is brought low, the group of outputsiselected by the state of the select inputs reflects the data in the shift register, and all non-selected outputs are held low. The high-voltage output buffers have level shifters which dissipate no DO power. These level shifters also control the rise and fall times of the outputs which have been optimized to lower system noise without compromising the current source and sink capability ot the output buffers. Additionally, each output has low VFWD clamp diodes to VPP and GND.

The features of HV500 can be summarized as (1)processed with HVCMOS technology; (2)Output voltage of up to 100V; (3)CMOS push-pull output buffers; (4)low-power level shifting; (5)source/sink current minimum of 15mA; (6)shift register speed 8MHz; (7)CMOS compatible inputs; (8)output clamp dicdes to VPP and GND; (9)direct replacement for the SN75500 and SN5550D series devices; (10)44-lead plastic and ceramic surface mount packages available; (11)Hi-Rel processing available.

The absolute maximum ratings of HV500 are (1)supply voltage, VPP: -0.3V to +15V; (2)supply voltage, VNN: -0.3V to +100V; (3)logic input levels: -0.3V to VDD +0.3V; (4)ground currents: 1.2A; (5)continuous total power dissipationt ceramic: 1850mW/Plastic: 1200mW; (6)operating temperature range commercial: -40°C to +85°C/military -55°C to +125°C; (7)storage temperature range: -65°C to 150°C.