ats177 single output hall effect latch ats177 rev. 5 1 of 9 september 2009 ds31055 www.diodes.com ? diodes incorporated ? 3.5v to 20v dc operation voltage ? temperature compensation ? wide operating voltage range ? open-collector pre-driver ? 25ma maximum sinking output current ? reverse polarity protection ? lead free package: sip-3l ? lead free finish/ rohs compliant (note 1) ats177 is an integrated hall effect latched sensor designed for electronic commutation of brush-less dc motor applications. the device includes an on-chip hall voltage generator for magnetic sensing, a comparator that amplifies the hall voltage, and a schmitt trigger to provide switching hysteresis for noise rejection, and open-collector output. an internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. if a magnetic flux density larger than threshold bop, do is turned on (low). the output state is held until a magnetic flux density reversal falls below brp causing do to be turned off (high). applications ? brush-less dc motor ? brush-less dc fan ? revolution counting ? speed measurement typical circuit +12v u1 ats177 vcc 1 gnd 2 output 3 q1 npn q2 npn r1 2k r2 3k d1 + c1 0.47uf + c2 0.47uf l1 l2 brush-less dc fan features general description
ats177 single output hall effect latch ats177 rev. 5 2 of 9 september 2009 ds31055 www.diodes.com ? diodes incorporated lead-free lead-free lead-free lead-free ats177 - p l - x - x packing b : bulk (note 3) p : sip-3l package lead free l : lead free magnetic a or b a : ammo box (note 4) characteristics notes: 1. eu directive 2002/95/ec (rohs). all applicable rohs exemptions applied, please visit our website at http://www.diodes.com/products/lead_free.html . 2. pad layout as shown on diodes inc. suggested pad layout document ap02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf . 3. bulk is for sip-3l straight lead. 4. ammo box is for sip-3l spread lead. pin assignments 1. vcc 2. gnd (top view) 3. do sip-3l pin descriptions pin name p/i/o pin # description vcc p 1 positive power supply gnd p 2 ground do o 3 digital output ordering information device package code packaging (note 2) bulk a mmo box magnetic characteristics quantity part number suffix quantity part number suffix ats177-pl-a-a p sip-3l na na 4000/box -a a ats177-pl-a-b p sip-3l na na 4000/box -a b ATS177-PL-B-A p sip-3l 1000 -b na na a ats177-pl-b-b p sip-3l 1000 -b na na b
ats177 single output hall effect latch ats177 rev. 5 3 of 9 september 2009 ds31055 www.diodes.com ? diodes incorporated regulator hall plate amp 2 gnd do 3 2 vcc 1 symbol parameter rating unit v cc supply voltage 20 v v rcc reverse v cc polarity voltage -20 v b magnetic flux density unlimited v ce output off voltage 30 v p d package power dissipation sip-3l 550 mw i c output ?on? current continuous 25 ma t j ( max ) maximum junction temperature 150 c t st storage temperature range -65~+150 c recommended oper ating conditions symbol paramete r conditions min max unit v cc supply voltage operating 3.5 20 v t a operating ambient temperature (note 5) operating -20 85 c notes: 5. shall not exceed p d and safety operation area. functional block diagrams absolute maximum ratings (at ta = 25 o c)
ats177 single output hall effect latch ats177 rev. 5 4 of 9 september 2009 ds31055 www.diodes.com ? diodes incorporated electrical characteristics (t a = + 25 c) symbol characteristic test conditions min typ. max unit v ce (sat) output saturation voltage v cc = 14v, ic = 20ma - 300 700 mv icex output leakage current v ce = 14v, v cc = 14v - < 0.1 10 ua icc supply current v cc = 20v, output open - 5 10 ma tr output rise time v cc = 14v, rl = 820 ? , cl = 20pf - 0.3 1.5 us tf output falling time v cc = 14v, rl = 820 ? , cl = 20pf - 0.3 1.5 us cl 14v do rl=820 ohm cl=20 pf rl test circuit test circuit
ats177 single output hall effect latch ats177 rev. 5 5 of 9 september 2009 ds31055 www.diodes.com ? diodes incorporated magnetic characteristics (t a = 25 o c, note 6) (1mt=10 gauss) a grade symbol parameter min typ. max unit bops(south pole to brand side) operation point 5 - 70 gauss brps(south pole to brand side) release point -70 - -5 gauss bhy( brpx bopx ? ) hysteresis - 80 - gauss b grade (for sip-3l only) symbol parameter min typ. max unit bops(south pole to brand side) operation point - - 100 gauss brps(south pole to brand side) release point -100 - - gauss bhy( brpx bopx ? ) hysteresis - 80 - gauss notes: 6. magnetic characteristics are for design information, which will vary with supply voltage, operating temperature an d after soldering. 12 10 8 6 4 2 op on off rp output voltage in volts -200 200100 -100 0 magnetic flux density in gauss do vsat typical magnetic switch point vs. temperuture -50 0 50 100 -20 25 80 100 temperature ( o c) flux density (b) bop brp bhys
ats177 single output hall effect latch ats177 rev. 5 6 of 9 september 2009 ds31055 www.diodes.com ? diodes incorporated performance characteristics t a ( c) 25 50 60 70 80 85 90 95 100 p d (mw) 550 440 396 352 308 286 264 242 220 t a ( c) 105 110 115 120 125 130 135 140 150 p d (mw) 198 176 154 132 110 88 66 44 0 power dissipation curve 0 100 200 300 400 500 600 0 25 50 75 100 125 150 t a ( o c) p d (mw) 85 -40 marking information (1) sip-3l 177 part number ( top view ) x : internal code : a~z : lead free y : year : 0~9 ww : week : 01~52, "52" represents 52 and 53 week y ww x
ats177 single output hall effect latch ats177 rev. 5 7 of 9 september 2009 ds31055 www.diodes.com ? diodes incorporated package information (all dimensions in mm) (1) package type: sip-3l for bulk pack active area depth sensor location 123 2.00 +/- 0.10mm 1.15 +/- 0.10mm 0.51mm nom branded surface package dimension
ats177 single output hall effect latch ats177 rev. 5 8 of 9 september 2009 ds31055 www.diodes.com ? diodes incorporated package information (continued) (2) package type: sip-3l for ammo pack-only
ats177 single output hall effect latch ats177 rev. 5 9 of 9 september 2009 ds31055 www.diodes.com ? diodes incorporated important notice diodes incorporated makes no warranty of any kind, express or implied, with regards to this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose (and their equivalents under the laws of any jurisdiction). diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or ot her changes without further notice to this document and any product described herein. diodes incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does diodes incorpora ted convey any license under its patent or trademark rights, nor the rights of others. any customer or user of this document or pr oducts described herein in such applications shall assume all risks of such use and will agree to hold diodes incorporated and all the companies whose products are represented on diodes incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthoriz ed sales channel. should customers purchase or use diodes incorporated products for any unintended or unauthorized application, customers shall indemnify and hold diodes incorporated and its representatives harmless against all claims, damages, expenses, and attorney fee s arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application. products described herein may be covered by one or more united states, international or foreign patents pending. product names and markings noted herein may also be covered by one or more united states, international or foreign trademarks. life support diodes incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the chief executive officer of diodes incorporated. as used herein: a. life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. b. a critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support dev ices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of diodes incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by diodes incorporated. further, customers must fully indemnify diodes incorporated and its representatives against any damages arising out of the use of diodes incorporated products in such safety-critical, life support devices or systems. copyright ? 2009, diodes incorporated www.diodes.com
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