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? 2016 microchip technology inc. ds20005629a-page 1 hv5812 features ?hvcmos ? technology for high performance ? operating voltage of up to 80v ? high-speed source driver ? 5v cmos logic circuitry ? up to 5 mhz data input rate ? excellent noise immunity ? flexible high-voltage supplies applications ? display driver general description the hv5812 is a 20-channel serial-input vacuum fluore scent display driver. it combines a 20-bit cmos shift register, data latche s and control circuitry with high-voltage mosfet outputs. the hv5812 is primari ly designed for vacuum fluorescent displays. the cmos shift register and latches allow direct interfacing with mi croprocessor-based system s. data input rates are typically over 5 mhz with 5v logic supply. especially useful for interdigit blanking, the blanking input disables the output source drives and turns on the sink drivers. using with ttl may require external pull-up resistors to ensure an input logic high. package type 28-lead pdip (top view) see table 2-1 for pin information. 28 1 1 28 4 26 1 28 28-lead plcc (top view) 28-lead sow (top view) s 20-channel serial-input vacuum fluorescen t display driver for anode or grid
bl strobe data in clk data out 20-bit shift register 20-bit latch vpp hv out 1 hv out 2 hv out 3 hv out 20 gnd vdd hv5812 ds20005629a-page 2 ? 2016 microchip technology inc. functional block diagram ? ? 2016 microchip technology inc. ds20005629a-page 3 hv5812 1.0 electrical characteristics absolute maximum ratings? supply voltage, v dd ............................................................................................................................... . ?0.5v to +7.5v supply voltage, v pp .................................................................................................................................. ?0.5v to +90v logic input levels ........................................... ... ............................................................... ............... ?0.3v to v dd +0.3v maximum operating junction temperature .................. ... .................................................................... ................+125c storage temperature ............................................................................................................ ................ ?55 c to +150c power dissipation: 28-lead pdip ................................................................................................................... . ..................... 2000 mw 28-lead plcc................................................................................................................... .. ................... 1900 mw 28-lead sow.................................................................................................................... . ................... 1700 mw ? notic e: stresses above those listed under ?absolute maximum ratings? may cause permanent damage to the device. this is a stress rating only, and functional operation of the device at those or any other conditions above those indicated in the operational sections of this specification is not intended. exposure to maximum rating conditions for extended periods may affect device reliability. recommended operating conditions parameter sym. min. typ. max. unit conditions supply voltage v dd 4.5 ? 5.5 v supply voltage v pp 20 ? 80 v operating junction temperature t j ?40 ? +125 c dc electrical characteristics electrical specifications : over recommended operating conditions; t a = 25c unless otherwise indicated. parameter sym. min. typ. max. unit conditions output leakage current i dss ? ?5 ?15 a v out = 0v, t a = +70c high-level output v oh hv out 78 78.5 ? v i out = ?25 ma, v pp = 80v, ? t j = +25c 77 78 ? i out = ?25 ma, v pp = 80v, ? t j = +125c data out 4.5 4.7 ? v i out = ?200 a, v dd = 5v low-level output v ol hv out ? 1.5 3 v i out = 1 ma, t j = +25c, v dd = 5v ? 2.3 4 i out = 1 ma, t j = +125c, v dd = 5v data out ? 200 250 v i out = +200 a, v dd = 5v output pull-down current i sink 2 3.5 ? ma v out = 5v to v pp , v dd = 5v high-level logic input voltage v ih 3.5 ? 5.3 v v dd = 5v low-level logic input voltage v il ?0.3 ? 0.8 v high-level logic input current i ih ? 0.05 0.5 a v in = v dd , v dd = 5v low-level logic input current i il ? ?0.05 ?0.5 a v in = 0.8v, v dd = 5v quiescent v dd supply current i ddq ? 100 300 a all outputs high, v dd = 5v ? 100 300 all outputs low, v dd = 5v quiescent v pp supply current i ppq ? 10 100 a all outputs high, no load ? 10 100 all outputs low, no load ac electrical characteristics electrical specifications : over recommended operating conditions; t a = 25c unless otherwise indicated. parameter sym. min. typ. max. unit conditions blanking to output delay t phl ? 2000 ? ns c l = 30 pf, 50% to 50%, v dd =5v t plh ? 1000 ? output fall time t r ? 1450 ? ns c l = 30 pf, 90% to 10%, v dd = 5v output rise time t f ? 650 ? ns c l = 30 pf, 10% to 90%, v dd = 5v data set-up time t su 75 ? ? ns see timing waveforms . data hold time t h 75 ? ? ns see timing waveforms . minimum data pulse width t pwd 150 ? ? ns see timing waveforms . minimum clock pulse width t pwclk 150 ? ? ns see timing waveforms . minimum time between clock acti vation and strobe t cks 300 ? ? ns see timing waveforms . minimum strobe pulse width t pws 100 ? ? ns see timing waveforms . typical time between strobe act ivation and output transition t sto ? 500 ? ns see timing waveforms . maximum clock frequency f clk ? 8 ? mhz t j = +25c, v dd = 5v ? 5 ? t j = +125c, v dd = 5v temperature specifications parameter sym. min. typ. max. unit conditions temperature range operating junction temperature t j ?40 ? +125 c storage temperature t s ?55 ? +150 c package thermal resistance 28-lead pdip ? ja ? 43 ? c/w 28-lead plcc ? ja ? 48 ? c/w 28-lead sow ? ja ? 55 ? c/w hv5812 ds20005629a-page 4 ? 2016 microchip technology inc. ? 2016 microchip technology inc. ds20005629a-page 5 hv5812 timing waveforms clk data in strobe bl hv out t pwclk t pws t phl t f t r t plh t su 50% 90% 10% 50% 10% t h t pwd t cks t sto 90% 50% 50% 50% 50% 50% 50% v ih v il v ih v il v ih v il v ih v il v oh v ol 50% 50% hv5812 ds20005629a-page 6 ? 2016 microchip technology inc. 2.0 pin description the details on the pins of hv5812 28-lead pdip, 28-l ead plcc and 28-lead sow are listed on table 2-1 . refer to package types for the location of pin s. table 2-1: pin function table pin number pin name description 1 vpp high-voltage power rail 2 data out serial data output. data output for cascadi ng to the data input of the next device. 3 hv out 20 high-voltage output 4 hv out 19 high-voltage output 5 hv out 18 high-voltage output 6 hv out 17 high-voltage output 7 hv out 16 high-voltage output 8 hv out 15 high-voltage output 9 hv out 14 high-voltage output 10 hv out 13 high-voltage output 11 hv out 12 high-voltage output 12 hv out 11 high-voltage output 13 blanking blank 14 gnd logic and high-voltage ground 15 clock data shift register clock 16 strobe strobe 17 hv out 10 high-voltage output 18 hv out 9 high-voltage output 19 hv out 8 high-voltage output 20 hv out 7 high-voltage output 21 hv out 6 high-voltage output 22 hv out 5 high-voltage output 23 hv out 4 high-voltage output 24 hv out 3 high-voltage output 25 hv out 2 high-voltage output 26 hv out 1 high-voltage output 27 data in serial data input 28 vdd low-voltage logic power rail ? 2016 microchip technology inc. ds20005629a-page 7 hv5812 3.0 functional description follow the steps below to power up and power down the hv5812 : power-up and power-down sequence power-up power-down step description step description 1 connect ground. 1 remove v pp . 2 apply v dd . 2 remove all inputs. 3 set all inputs (data, clk, etc.) to a known state 3 remove v dd . 4 apply v pp . ( note 1 ) 4 disconnect ground. note 1: th e v pp should not drop below v dd during operation. function table ( note 1 ) serial data input clock inp ut shift register contents serial dat a output strobe inp ut latch contents blanking output contents i 1 i 2 i 3 ... i n-1 i n i 1 i 2 i 3 ... i n-1 i n i 1 i 2 i 3 ... i n-1 i n h l to h h r 1 r 2 ...r n?2 r n?1 r n?1 ? ? ? ? ? ? ? ? ? ? l l to h l r 1 r 2 ...r n?2 r n?1 r n?1 ? ? ? ? ? ? ? ? ? ? x h to l r 1 r 2 r 3 ...r n?1 r n r n ? ? ? ? ? ? ? ? ? ? ? ? x x x...x x x l r 1 r 2 r 3 ...r n?1 r n ? ? ? ? ? ? ? p 1 p 2 p 3 ...p n?1 p n p n h p 1 p 2 p 3 ...p n?1 p n l p 1 p 2 p 3 ...p n?1 p n ? ? ? ? ? ? ? ? x x x...x x h l l l...l l note 1: l = low logic level ? h = high logic level ? x = irrelevant ? p = present state ? r = previous state , vdd input gnd vpp l/t gnd hv out logic inputs gnd data out logic data output high voltage outputs vdd figure 3-1: io circuits. hv5812 ds20005629a-page 8 ? 2016 microchip technology inc. 4.0 package marking information 4.1 packaging information 28-lead pdip example hv5812p e 3 1625859 xxxxxx e 3 yywwnnn legend: xx...x product code or cust omer-specific information ? y year code (last digit of calendar year) ? yy year code (last 2 digits of calendar year) ? ww week code (week of january 1 is week ?01?) ? nnn alphanumeric traceability code ? pb-free jedec ? designator for matte tin (sn) ? * this package is pb-free. the pb-free jedec designator ( ) ? can be found on the outer packaging for this package. note : in the event the full microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for product code or customer-specific information. package may or not include the corporate logo. 3 e 3 e xxxxxxx e 3 yywwnnn e 3 hv5812wg 1678896 28-lead sow example 28-lead plcc example xxxxxxxxx yywwnnn e 3 hv5812pj 1611231 e 3 28-lead pdip (.600in row spacing) package outline (p) 1.565x.580in body, .250in height (max), .100in pitch note 1 (index area) 28 1 d l a1 a a2 seating plane e e1 d1 d1 e a a side view top view view a - a ea eb b b1 view b view b note: 1. $ 3 l q l g h q w l ? h u p x v w e h o r f d w h g l q w k h l q g h [ d u h d l q g l f d w h g 7 k h 3 l q l g h q w l ? h u f d q e h d p r o g h g p d u n l g h q w l ? h u d q h p e h g g h g p h w d o p d u n h u r u d s u l q w h g l q g l f d w r u symbol a a1 a2 b b1 d d1 e e1 e ea eb l dimension (inches) min .140* .015 .125 .014 .030 1.380 .065 ? .590 ? .485 .100 bsc .600 bsc .600* .115 nom------ - -- -- max .250 .055* .195 .023 ? .070 1.565 .085* .625 .580 .700 .200 - ( ' ( & |