L6452 Datasheet | STMicroelectronics

Features - DRIVES TWO 13X16 MATRIX HEADS - HEAD TEMPERATURE SENSING - POWER UP SYSTEM - ELECTRICAL NOZZLE CHECK - 8 BIT A/D - 5 BIT D/A - ± 4KV ESD PROTECTED OUTPUTS Description L6452 is a device designed to drive two 13x16 matrix ink jet print heads in printer applications. The output stage is able to source simultaneously 400 m A on each of the 16 power lines (columns) with a duty cycle of 33% in normal printing and 66% in head pre-heating. On the address lines (rows), the load is only capacitive (MOS FET driving capability). The driver can control two print heads, but only one is active at a time. The address scanning counter is included and can be disabled to allow a different scanning scheme. Order codes Part number E-L6452 L6452DIE8 Op. Temp range, ° C 0 to 70 0 to 70 PQFP100 In order to avoid output activation during the supply transient, an internal power-up system is implemented. As supporting function, L6452 is capable of sensing the head silicon temperature and to electrically check each nozzle. The device is also integrating a thermal protection. Package PQFP100 Packing Tray -- February 2006 Rev 2 1/22 .st. Contents Contents Block diagrams - - - - - - - - - . . 3 Pin description - - - - - - -...