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freescale semiconductor, inc. reserves the right to change the detail specifications, as may be required, to permit improvements in the design of its products. document number: mc33287 rev. 5.0, 2/2007 freescale semiconductor technical data ? freescale semiconductor, inc., 2007. all rights reserved. contact monitoring and dual low-side protected driver the 33287 interfaces between switch contacts and a microcontroller. eight switch-to-bat tery (or switch-to-ground) sense monitor switch status. additionally, two internal low-side switches are available to control inductive or capacitive loads. the 33287 has eight sense inputs (rat ed at 40 v) with thresholds ratiometric to v bat . one sense input has a dedicated output for direct interfacing to the mcu and the remaining seven inputs are multiplexed interfaced to the mcu. the two low-side switch outputs are current limited to 535 ma and internally clamped to 50 v. outputs also have independent overtemperature shutdown and diagnostic reporting. features ? eight high-voltage sense inputs ? direct interfacing to microcontroller ? two current limited low-side drivers ? drivers internally over voltage clamped and thermally protected ? 55 a standby current ? pb-free packaging designated by suffix code eg figure 1. simplified application design automotive contact monitoring and dual low-side protected driver dw suffix eg suffix (pb-free) 98asb42343b 20-pin soicw 33287 ordering information device temperature range (t a ) package mc33287dw/r2 -40 to 125c 20 soicw MCZ33287eg/r2 8 sense to gnd or v bat inputs gnd sense 33287 5.0 v v bat sense v bat vdd mcu vdd1 outd2 outd1 in7 in6 in5 in4 in3 in2 in1 in0 gnd cd1 out7 out1 ad2 ad1 ad0 vdd2 cd2
analog integrated circuit device data 2 freescale semiconductor 33287 internal block diagram internal block diagram figure 2. 33287 simplified internal block diagram outd1 ad0 ad1 ad2 vdd1 in0 in1 in2 in3 in4 in5 in6 in7 vdd2 out7 out1 outd2 cd2 cd1 gnd v dd2 current limitation current limitation control control overtemperature overtemperature detection detection fault detector fault detector internal supply multiplexer 8 to 1 and diagnostic logic diagd1 diagd2
analog integrated circuit device data freescale semiconductor 3 33287 pin connections pin connections figure 3. 33287 pin connections table 1. 33287 pin definitions pin number pin name formal name definition 1, 20 v dd1, v dd2 voltage power these are high-voltage power supply 5.0 v pins (v bat ). 5, 4, 3, 2, 19, 18, 17, 16 in0 ? in7 input 0 ? 7 these are high-voltage input pins. 6, 7, 8 ad0 ? ad2 address these pins are the addresses for mode and input selection. 9, 11 outd1, outd2 output drain these two are output driver pins (drain). 10 gnd ground this pin in the ground for the logic and analog circuitry of the device. 12, 13 cd1, cd2 command driver these are the two driver command pins. 14 out1 output 1 this is the output (multiplexed output 1 = 0 to 6.0 v for in0 to in6 and diagd1 or diagd2) and diagd2 pins. 15 out7 output 7 this is the direct output from in7 pin. vdd1 in2 ad1 ad2 outd1 gnd in1 in0 ad0 in3 vdd2 in6 in7 out7 out1 cd1 cd2 outd2 in4 in5 4 5 6 7 8 9 10 2 3 20 18 14 13 12 11 17 16 15 19 1
analog integrated circuit device data 4 freescale semiconductor 33287 electrical characteristics maximum ratings electrical characteristics maximum ratings table 2. maximum ratings all voltages are with respect to ground unless otherwise noted. rating symbol value unit power supply voltage normal operation (steady-state) load dump conditions v dd1 24 40 v logic supply voltage (continuous) v dd2 7.0 v input pin voltage (1) v in 40 v esd voltage (2) human body model machine model v esd1 v esd2 2000 200 v operating ambient temperature t a -40 to 125c c storage temperature t stg -65 to 150 c power dissipation (t a = 85c) p d 0.7 w peak package reflow temperature during reflow (3) , (4) t pprt note 4. c thermal resistance junction-to-ambient r j-a 100 c/w notes 1 with serial resistor 25 k ? 2 esd1 testing is performed in accordance with the human body model (c zap = 100 pf, r zap = 1500 ? ), esd2 testing is performed in accordance with the machine model (c zap = 200 pf, r zap = 0 ? ). 3. pin soldering temperature limit is for 10 seconds maximum duration. not designed for immersion soldering. exceeding these lim its may cause malfunction or permanent damage to the device. 4. freescale?s package reflow capability meets pb-free requirements for jedec standard j-std-020c. for peak package reflow temperature and moisture sensitivity levels (msl), go to www.freescale.com, search by part number [e.g. remove prefixes/suffixes and enter the core id to view all orderable parts . (i.e. mc33xxxd enter 33xxx), and review parametrics.
analog integrated circuit device data freescale semiconductor 5 33287 electrical characteristics static electrical characteristics static electrical characteristics table 3. static electrical characteristics characteristics noted under conditions 7.0 v v dd1 18 v, 4.75 v v dd2 5.25 v, -40c t a 125c, unless otherwise noted. extended limit is 5.0 v v dd1 7.0 v and other parameters are full specific ation in this mode. inputs in1?in7 and low- side drivers are still functional with down-graded characteristics. characteristic symbol min typ max unit supply voltage (v dd1 and v dd2 pins) operational supply voltage full specification extend limit vdd1 7.0 5.0 12 ? 18 7.0 v operational supply voltage (full specification) vdd2 4.75 ? ? v supply current standby mode (5) v dd1 14 v v cd1 = v dd2 , v cd2 = 0 v ivdd1-0 i vdd2-0 ? ? 55 ? 110 10 a supply current in drivers on configuration (full specification) (5) v cd1 = 0 v v cd2 = v dd2 ivdd1-1 i vdd2-1 ? ? 250 650 1500 1500 a output drivers characteristics (outd1 and outd2 pins) output resistance (full specification and t j 130c) r ds(on) ? 1.40 3.20 ? output resistance (extent limit and t j 130c) r ds(on) ? ? 5.0 ? leakage current (internal current source) i leak 1.0 ? 13 s protection and level detection (outd1 and outd2 pins) positive output clamp v clamp 40 50 60 v output current limitation (130c t j ) i lim 300 535 750 ma output fault detector level v fault 2.0 2.75 3.5 v overtemperature detection (at 25c by function simulation) t detec 145 160 175 c inputs (cd1 and cd2 pins) input voltage low v il ? ? 4.0 x v dd2 v input voltage high v ih 8.0 x v dd2 ? ? v hysteresis v hst 500 800 ? mv input current on pin cd1 (internal pull-up and cd1 connected to ground) i cd1 -100 -30 -10 a leakage current on pin cd1 (internal pull-up connected to v dd2 ) i leak -5.0 ? 5.0 a input current on pin cd2 (internal pull down cd2 connected to v dd2 ) i cd2 10 30 100 a leakage current on pin cd2 (internal pull-up cd1 connected to ground) i leak -5.0 ? 5.0 a notes 5 all inn and adn inputs are connected to ground.
analog integrated circuit device data 6 freescale semiconductor 33287 electrical characteristics static electrical characteristics inputs (in0 to in7 pins) input voltage low (full specification) v il ? ? 4.0 x v dd1 v input voltage low (extended limit) v il ? ? 3.0 x v dd1 v input voltage high (full specification and extended limit) v ih 7.0 x v dd1 ? ? v hysteresis (5.0 v < v dd1 < 16 v) v hys 5.0 1.0 ? v input current (v in < 16 v) i leak 5.0 ? 5.0 a input voltage clamp (i = 100 a) v inclamp 17 20 23 v inputs (ad0, ad1, and ad2 pins) input voltage low v il ? ? 4.0 x v dd2 v input voltage high v ih 8.0 x v dd2 ? ? v hysteresis v hys 500 750 ? mv input current i leak -5.0 ? 5.0 a outputs (out1 and out7 pins) output voltage low (i load = 2.0 ma) v ol ? ? 2.0 x v dd2 v output voltage high (i load = -2.0 ma) v oh 8.0 x v dd2 ? ? v table 3. static electrical characteristics (continued) characteristics noted under conditions 7.0 v v dd1 18 v, 4.75 v v dd2 5.25 v, -40c t a 125c, unless otherwise noted. extended limit is 5.0 v v dd1 7.0 v and other parameters are full specific ation in this mode. inputs in1?in7 and low- side drivers are still functional with down-graded characteristics. characteristic symbol min typ max unit
analog integrated circuit device data freescale semiconductor 7 33287 electrical characteristics dynamic electrical characteristics dynamic electrical characteristics table 4. dynamic electrical characteristics characteristics noted under conditions 4.5 v v dd 5.5 v, 9.0 v v pwr 16 v, -40 c t a 125 c, unless otherwise noted. typical values noted reflect the approximate parameter mean at t a = 25 c under nominal conditions, unless otherwise noted. characteristic symbol min typ max unit output drivers characteristics (outd1 and outd2 pins) turn on delay time t on ? 1.3 10 s turn off delay time t off ? 2.1 10 s output rising edge t rise ? 2.8 10 s output falling edge t fall ? 1.0 10 s difference between command duration and bit duration ? bit -5.0 ? 5.0 s
analog integrated circuit device data 8 freescale semiconductor 33287 electrical characteristics timing diagrams timing diagrams figure 4. timing characteristics figure 5. timing t est configuration t cd2 t command outd2 80% 50% 20% t on t fall t off t rise t 80% 50% 20% t bit ? bit = t command - t bit cd1 cd2 outd1 outd2 v bat f = 5.0 khz v bat r1 = 500 ? r2 = 47 k ? c1 = 2.0 nf c2 = 250 pf r1 = 500 ? r2 = 47 k ? c1 = 2.0 nf c2 = 250 pf
analog integrated circuit device data freescale semiconductor 9 33287 functional device operation logic commands and registers functional device operation logic commands and registers table 5. drivers function table cd1 (6) outd1 diagd1 (8) status high level for logic signals high level for drivers outputs high level for logic signals driver 1 normally off low level for logic signals low level for drivers outputs high level for logic signals driver 1 normally on high level for logic signals low level for drivers outputs low level for logic signals driver 1 shorted to gnd or open load low level for logic signals high level for drivers outputs low level for logic signals driver 1 overloaded cd2 (7) outd2 diagd2 status low level for logic signals high level for drivers outputs high level for logic signals driver 2 normally off high level for logic signals low level for drivers outputs high level for logic signals driver 2 normally on low level for logic signals low level for drivers outputs low level for logic signals driver 2 shorted to gnd or open load high level for logic signals high level for drivers outputs low level for logic signals driver 2 overloaded notes 6 cd1 is active on low level (driver 1 is on when cd1 is low). 7 cd2 is active on high level (driver 2 is on when cd2 is high. 8 diagd1 output is neither latched nor filtered. table 6. eight-to-one data multiplexer function inputs out1 ad2 ad1 ad0 high impedance high impedance high impedance unknown low level low level low level in0 (9) low level low level high level in1 low level high level low level in2 low level high level high level in3 high level low level low level in4 high level low level high level in5 high level high level low level in6 high level high level high level diagd1 or diagd2 (10) notes 9 in0 to in6 are the normalized values. 10 diagd1 or diagd2 are the values of the selected internal fault detector. see table 7 .
analog integrated circuit device data 10 freescale semiconductor 33287 functional device operation logic commands and registers table 7. fault detector selection inputs out1 ad2 ad1 ad0 unknown unknown unknown unknown unknown low level high level unknown high level high level high level diagd1 unknown unknown unknown unknown unknown high level low level unknown high level high level high level diagd2
analog integrated circuit device data freescale semiconductor 11 33287 functional device operation logic commands and registers typical applications figure 6. typical appl ication configuration figure 7. contact configuration 1 2 3 5 4 6 7 8 9 10 1 2 3 5 4 6 7 8 9 20 1 1 1 1 1 1 1 1 1 vdd2 in4 in5 in6 in7 out7 outi cd1 cd2 d2 vdd1 in3 in2 in1 in0 ad0 ad1 ad2 d1 gnd 8 contacts to vbat or gnd vbat 470nf relay relay (65 ? ) lamp (1,2w) resistor lamp 5v regulator vdd i/o port microcontroller 500 ? contact to v bat 10 nf v bat 47 k ? 500 ? contact to gnd 10 nf v bat 47 k ?
analog integrated circuit device data 12 freescale semiconductor 33287 functional device operation logic commands and registers figure 8. electrical schematic ad0 ad1 ad2 valim in0 in1 in2 in3 in4 in5 in6 in7 8 to 1 logic multiplexer outi diagd1 r s q nq diagd2 valim vdd2 valim vdd1 gnd valim + - r sq out7 outd2 vdd2 cd2 all the symbols represented without supply pin are outd2 driver outd1 driver outd1 cd1 vdd2 connected to vdd2 note: the only difference between the low side driver 1 and 2 is the polarity of the command. also, there is an integral pull-u p at pin cd1, and an internal pull-down at pin cd2.
analog integrated circuit device data freescale semiconductor 13 33287 package package dimensions package package dimensions for the most current package revision, visit www.freescale.com and perform a keyword search using the ?98a? listed below. dw suffix eg suffix (pb-free) 20-pin plastic package 98asb42343b rev. j
analog integrated circuit device data 14 freescale semiconductor 33287 revision history revision history revision date description of changes 4.0 11/2006 ? converted to freescale format with the current form and style ? implemented revision history page ? updated package drawing 98asb42343b to rev. j ? added eg pb-free suffix ? removed peak package reflow temperature during reflow (solder reflow) parameter from maximum ratings on page 4 . added note with instructions to obtain this information from www.freescale.com . 5.0 2/2007 ? correct ed internal block diagram on page 2 ? restated definition for out1 in 33287 pin definitions on page 3 ? corrected value for storage temperature on page 4 ? corrected unit for output resistance (extent limit and t j 130c) on page 5 ? corrected electrical schematic on page 12 ? restated note 4 in maximum ratings on page 4 .
mc33287 rev. 5.0 2/2007 information in this document is provided solely to enable system and software implementers to use freescale semiconductor products. there are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. freescale semiconductor reserves the right to make changes without further notice to any products herein. freescale semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does freescale semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. ?typical? parameters that may be provided in freescale semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including ?typicals?, must be validated for each customer application by customer?s technical experts. freescale semiconductor does not convey any license under its patent rights nor the rights of others. freescale semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the freescale semiconductor product could create a situation where personal injury or death may occur. should buyer purchase or use freescale semiconductor products for any such unintended or unauthorized application, buyer shall indemnify and hold freescale semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that freescale semiconductor was negligent regarding the design or manufacture of the part. freescale? and the freescale logo are trademarks of freescale semiconductor, inc. all other product or service names are the property of their respective owners. ? freescale semiconductor, inc., 2007. all rights reserved. how to reach us: home page: www.freescale.com e-mail: support@freescale.com usa/europe or locations not listed: freescale semiconductor technical information center, ch370 1300 n. alma school road chandler, arizona 85224 +1-800-521-6274 or +1-480-768-2130 www.freescale.com/support europe, middle east, and africa: freescale halbleiter deutschland gmbh technical information center schatzbogen 7 81829 muenchen, germany +44 1296 380 456 (english) +46 8 52200080 (english) +49 89 92103 559 (german) +33 1 69 35 48 48 (french) support@freescale.com japan: freescale semiconductor japan ltd. headquarters arco tower 15f 1-8-1, shimo-meguro, meguro-ku, tokyo 153-0064 japan 0120 191014 or +81 3 5437 9125 support.japan@freescale.com asia/pacific: freescale semiconductor hong kong ltd. technical information center 2 dai king street tai po industrial estate ta i p o , n . t. , h o n g k o n g +800 2666 8080 support.asia@freescale.com for literature requests only: freescale semiconductor literature distribution center p.o. box 5405 denver, colorado 80217 1-800-441-2447 or 303-675-2140 fax: 303-675-2150 ldcforfreescalesemiconductor@hibbertgroup.com rohs-compliant and/or pb-free versions of freescale products have the functionality and electrical characteristics of their non-rohs-compliant and/or non-pb-free counterparts. for further information, see http://www.freescale.com or contact your freescale sales representative. for information on freescale?s environmental products program, go to http:// www.freescale.com/epp .

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