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ap91352 document number: ds 38109 rev. 1 - 2 1 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 sas disable +5v efuse with integrated isofet description the efuse is a 5v protection device with a bidirectional switch that incorporates input slew rate control to reduce input surge current and reverse current detection to prevent discha rge to v cc from v out . the efuse protection features include under voltage lockout, a fixed 2.5a current limit, trimmed fast response over voltage protection and thermal shutdown. the e n /f ault line is a tri - state bidirectional interface that can be used to disable the output by pulling the line low through an external open drain device. if a thermal fault occurs, the voltage on the pin will go to an intermediate voltage indicating a fault and it can be connected to another device to cause simultaneous shut d own. the sas pin is an esd protected interface that allows direct external control of the efuse. driving the sas pin high pulls the enable line low causing the efuse to shutdown and enter a low quiescent current state. the integrated isofet latches off w hen the reverse current is detected. this can be reset only by triggering the under voltage lock out, by e n /f ault pin or when voltage on the output pin (v out ) falls below the supply pin voltage (vcc) in ap91352 . the ap91352 is available in a standard gre en w - qfn3020 - 12 package and is rohs compliant. features ? sas d isable ? 2.1v s ignal d isables the efuse ? esd c ompliant to1kv hbm and 500v cdm ? integrated isofet that latches off when reverse current is detected. latch off is reset by ? sas pin ? uvlo t rigger ? e n /f aul t p in ? input t olerant of c ontinuous 12v ? 50 m ? t ypical t otal on r esistance ? fixed 2.5a over current protection (ocp) ? over voltage protection (ovp) ? trimmed 5.5v to 6.0v f ast r esponse ? 50 s l atch off ? fixed 13ms 20% slew rate control (src) ? over temperature protec tion (otp) ? under voltage lockout (uvlo) ? thermally efficient low profile package , w - qfn3020 - 12 ? totally lead - free & fully rohs c ompliant (notes 1 & 2) ? halogen and antimony free. green device (note 3) pin assignments appli cations ? hhd d rives ? ssd d rives ? mother b oard p ower m anagement ? printer l oad p ower m anagement ? fan drives notes: 1 . no purposely added lead. fully eu directive 2002/95/ec (rohs) & 2011/65/eu (rohs 2) compliant. 2. see http://www.diodes.com for more i nformation about diodes incorporateds definitions of hal ogen - and antimony - free, "green" and lead - f ree . 3. halogen - and antimony - free "green products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total br + cl) and <1000ppm antimony compounds. ( t o p v i e w ) w - q f n 3 0 2 0 - 1 2 6 1 1 1 0 9 8 7 1 2 1 2 3 4 5 v o u t v o u t v o u t n c n c v c c v c c v c c s a s e n / f a u l t n c g n d 1 3 g n d
ap91352 document number: ds 38109 rev. 1 - 2 2 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 typical applications circuit pin description s pin number pin name description 1, 2, 3 vcc supply input, a 1 f capacitor is needed to supply internal charge pump. the capacitor return should be c onnected directly to the gnd pin. 4 sas sas disable, when this pin is pulled high to a voltage greater then 2.1v, the efuse is turned off. 5 e n /f ault the en / fault pin is a tri?state, bidirectional interface. it can be used to enable or disable the output of the device by pulling it to ground using an open drain device. if a thermal fault occurs, the voltage on this pin will go to an intermediate state to signal a m onitoring circuit that the device is in thermal shutdown. it can also be connected to another device in this family to cause a simultaneous shutdown during thermal events. 6, 7, 8 nc do not connect on pcb, internally connected for production purpose 9, 10, 11 vout output: efuse controlled output; a 20 f capacitor is needed for over voltage protection stability. the capacitor return should be connected directly to the gnd pin. 12 gnd ground 13 gnd ground exposed pad en n
ap91352 document number: ds 38109 rev. 1 - 2 3 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 functional block diag ram absolute maximum ratings (note 4) (@ t a = +25c, unless otherwise specified.) symbol parameter ratings units vcc input voltage steady state - 0.3 to 12 v transient (100ms) - 0.3 to 15 en/fault enable voltage - 0.3 to 6 v sas sas disable vol tage - 0.3 to 3.6 v vout vout voltage - 0.3 to 7.0 v esd hbm human body esd protection jesd22 - a114 2000 v esd cdm charged device model esd protection jesd22 - c101 1000 v t a(max) maximum ambient temperature - 40 to + 125 c t j(max) maximum junction temperat ure + 150 c t st storage temperature - 65 to +150 c p d power dissipation (t a = + 25c) w - qfn3020 - 12 1.3 w r ja thermal resistance, junction to ambient (0.5 sq in) w - qfn3020 - 12 (note 5) 40 c/w notes: 4. stresses greater than the 'absolute maximum rating s' specified above may cause permanent damage to the device. these are stress ratings only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not im plied. device reliability may be af fected by exposure to absolute maximum rating conditions for extended periods of time. 5. for a device surface mounted on 25mm by 25mm by 1.6mm fr4 pcb with high coverage of single sided 2oz copper, in still air conditions; the device is measured wh en operating in a steady state condition. recommended operating conditions (all specifications are for - 10 c < t a < + 85c, v cc = 5 v , unless otherwise noted . ) symbol parameter min typ max units vcc input voltage range 3.6 C a operating ambient tem perature - 40 C
ap91352 document number: ds 38109 rev. 1 - 2 4 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 electrical characteristics (note 6) (all specifications are for - 10 c < t a < + 85c, v cc = 5 v , unless otherwise noted . ) symbol parameters conditions min typ max unit supply current i q v cc supply current en = high , sas = 0, i loa d = 0 a C C a C C a C C a power fet r ds (on) on resistance t a = + 25c C C m j = + 80c C C m on - dly turn - on delay e nable i d = 100ma, 1a r esistive l oad C C s dc continuous current t a = + 25c, 0.5 sq in copper C C off off state leakage v cc = 12v, en = low C C a slew rate control src slew rate control en to vout = 4.7v (note 7) 10.4 13.0 15.6 ms current protection i lim current limit C C short short circuit current C C ilim current limit response C C s reverse current limit / under voltage protection i qre verse fast reverse current limit (note 8) 1 C qreverse fast reverse current limit response time v cc dv/dt = - 5v/100s C s under v oltage lock out uvlo r ising 3.8 4.0 4.2 v uvlo - hys under voltage hysteresis C C C C C C C s over voltage protection ovp over voltage clamping C ovp over voltage response c out = 2 0 f , dv/dt ( v cc) = 0.5 v / s , v out < 6.5v C s thermal protection th sd shutdown temperature C enable/fault v l logic level low output disabled ( note 7 ) 0.35 C m logic level mid thermal fault, output disabled ( note 7 ) 0.9 C h logic level hi gh output enabled 2.1 C max maximum high state C C l logic low sink current en = 0v C a h logic level high en = 3.3v C C a C C C
ap91352 document number: ds 38109 rev. 1 - 2 5 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 electrical characteristics (cont . ) (note 6 ) (all specifications are for - 10 c < t a < + 85c, v cc = 5 v , unless otherwise noted . ) symbol parameters conditions min typ max unit sas disable sas l logic level low output enabled 0.35 C 0.7 v sas h logic level high output disabled 0.8 1.0 2.1 v sas h max maximum p in v oltage C C C 3.3 v sas - in input impedance to gnd 350 500 1000 k sas - tdly deglitch filter C 2 C C s C human body jesd22 - a114 C 1 C C kv C charged device jesd22 - c101 C 500 C C v notes: 6. typical data is measured at t a = +25 ? c, vcc = 5v. the maximum and minimum parameters v alues over operating temperature range are not tested in production, they are guaranteed by design, characterization and process control. 7. the slew rate control is held in reset until the input voltage is greater than the uvlo rising threshold and enab le = high. the slew rate control is reset when input voltage drops below uvlo falling threshold, enable changes from high to mid or low, sa = hig h or reverse current detection. 8. reverse current detection will latch off the isofet switch ; in ap 91352 , thi s condition can be reset by u nder voltage lock out, by e n /f ault and sas pin , when v out falls below the supply pin voltage (vcc) by 100mv typical at t a = +25 ? c, vcc = 5v .
ap91352 document number: ds 38109 rev. 1 - 2 6 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 performance characteristic uvl o vs . temperature uvlo response vs . temperature uvlo hysteresis vs . temperature o ver voltage clamping vs . tempe rature r ds ( on ) vs . temperature off s tate l eakage vs . temperature ( c ) ( c )
ap91352 document number: ds 38109 rev. 1 - 2 7 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 performance characteristic (cont.) slew rate vs . temperature current l imit vs . temperature s hort c ircuit c urrent vs . temperature i nput/ o utput t ransient r esponse w hen s hort c ircuit reverse current l imit vs . temperature reverse c urrent l imit r esponse time vs . temperature
ap91352 document number: ds 38109 rev. 1 - 2 8 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 application note theory of operation the ap91352 is a self protected, re settable electronic fuse. it monitors the input and output voltage, the output current and the die temperature. when the ap91352 is powered up it will ramp up the o utput voltage based on the fixed slew rate (see above electrical spec) and current will begi n t o flow . the overcurrent protection, overvoltage clamp, under voltage lockout and thermal protection are internally set. a lso, integrated reverse blocking mosfet would prevent back - drive from an active load inadvertently causing undetermined behavior i n the application . overvoltage clamping the ap91352 monito r the input voltage and clamp output voltage once it exceeds 6. 2 5 v (max) . this will allow for transient on the input for short periods of time. if the input voltage stays above 6. 2 5 v (max) for exte nded times the voltage drop across the fet with the load current will increase the die temperature and the thermal shutdown feature will protect the device and shut it down. under voltage lock out the input voltage of ap91352 is monitored by an uvlo circu it (under voltage lockout) if the input voltage drops below this threshold the output transistor will be pulled into a high impedance state. enable/fault the ap91352 has a tri state e n /f ault pin. it is used to turn on and off the device with high and low signals from a gpio, but can also indicate a thermal fault. when the e n /f ault pin is pulled low the output is turned off, when the e n /f ault pin is pulled high the output is turned on. a lso, the en/fault pin would be internally pulled high after v cc reach uvlo. in the event of a thermal fault the e n /f ault pin will be pulled low to an intermediate voltage by an internal circuit. t his can be used to chain up to 3 efuse together, like ap91352 , nis5132 (12v effuse ), or nis5135 (5v effuse ) together that durin g a thermal shut down the linked devices turn off as well. due to this fault indication capability it should not be connected to any type of logic with an internal pull up device. ap91352 connected to a 2 nd device will latch off until the e n /f ault pin h as been pulled to low and then allowed to go back up to a high signal, or sas pin has been toggled from high to low or if the power has been cycled. once the part starts up aga in it will go through the start - up ramp determined by the internal circuit , 13ms (typ). symbol description enable/fault efuse state latching uvlo under voltage lock out v l off no sas h sas disable = 1 v l off n/a th sd thermal shutdown v m off yes i reverse reverse current protection v m off ( note 8 ) sas o sas disable = open v h on n/ a sas l sas disable = 0 v h on n/a C vcc > uvlo, no fault v h on n/a table 1 . e n/ f ault signal levels & device status thermal protection the ap91352 has an integrated temperature sensing circuit that protects the die in the event of over temperature. the trip point has been intentionally set high a t + 150 ?c (typ) to allow for increase d trip times during high power transient events. the ap91352 will shut down current flow to the output when the die temperature reaches + 150 c (typ) . the ap91352 will restart a fter the enable pin has been toggled or the input power has been cycled. even though the thermal trip point has been set high to allow for high current transients the circuit design should accomplish best therm al performance with good thermal layout of t he pcb. it is not recommended to operate ap91352 above + 150 c over extended periods of time.
ap91352 document number: ds 38109 rev. 1 - 2 9 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 o rdering information part number package code packaging (note 9 ) identification code 7 tape and reel ap91352mn1 - dt8 - 7 dt8 w - q fn3020 - 12 p 9 300 0/tape & reel - 7 note 9 : 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 . marking information w - qfn3020 - 12 part number package identification code ap91352mn1 - dt8 - 7 w - q fn3020 - 12 p 9 a p 9 1 3 5 2 m n x - x x x - 7 p a c k i n g d t 8 : w - q f n 3 0 2 0 - 1 2 - 7 : t a p e & r e e l 1 : t h e r m a l o r r e v e r s e c u r r e n t l a t c h i n g ( n o t e 8 ) p a c k a g e f u n c t i o n v e r s i o n m n : p r o d u c t v e r s i o n y y x x w x x x x ( t o p v i e w ) y : y e a r : 0 ~ 9 x : i n t e r n a l c o d e x x : i d e n t i f i c a t i o n c o d e w : w e e k : a ~ z : 1 ~ 2 6 w e e k ; a ~ z : 2 7 ~ 5 2 w e e k ; z r e p r e s e n t s 5 2 a n d 5 3 w e e k y : i n t e r n a l c o d e
ap91352 document number: ds 38109 rev. 1 - 2 10 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 package outline dimensions (all d imensions in mm . ) please see ap02002 at http://www.diodes .com/datasheets/ap02002.pdf for the latest version. w - qfn3020 - 12 w - qfn3020 - 12 dim min max typ a 0.700 0.800 - a1 0 0.05 - a3 0.203ref b 0.200 0.300 - b1 0.350 0.450 - d 1.900 2.100 2.000 e 2.900 3.100 3.000 e - - 0.500 e1 - - 0.575 l 0.35 0 0.450 - l1 0.450 0.550 - l2 0.750 0.850 - all dimensions in mm suggested pad layout please see ap02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version. w - qfn3020 - 12 dimensions value (in mm) c 0.500 g 0.575 x 0.650 x 1 0.750 x2 0.350 x3 2.400 y 0.300 y1 0.450 y2 0.900 y3 1.050 y4 3.400 l l1 l2 e e1 b1 b b d e a a a3 pin#1 id y1 x2 x1 y c1 c x y2 y3 y4 x3
ap91352 document number: ds 38109 rev. 1 - 2 11 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 taping orientation w - qfn3020 - 12 note 1 0 : the taping orientation of the other package type can be found on our website at http://w ww.diodes.com/datasheets/ap02007.pdf .
ap91352 document number: ds 38109 rev. 1 - 2 12 of 12 www.diodes.com october 2015 ? diodes incorporated new product ap913 5 2 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 f itness 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 other 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 incorporated convey any license unde r its pate nt or trademark rights, nor the rights of others. any customer or user of this document or products described herein in such appli cations shall assume all risks of such use and will agree to hold diodes incorporated and all the companies whose products ar e 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 unauthor ized 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 fees a rising 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. pro duct names and markings noted herein may also be covered by one or more united states, international or foreign trademarks. this document is written in english but may be translated into multiple languages for reference. only the english version of this document is the final and determinative format released by diodes incorporated. life support diodes incorporated products are specifically not authorized for use as critical components in life support devices or system s without the express written approv al 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 prope rly 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 d evice s 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 system s, notwithstanding any devices - or systems - related information or support that may be provided by diodes incorporated. further, customers must fully indemnify diodes incorpora ted 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 ? 201 5 , diodes incorporated www.diodes.com

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