ST L6370 handbook
Contents
1. D95IN211A Voth2 Voth1 Vout Figure 4 _Undervoltage comparator hysteresis Vsth2 Vsthi P95IN212 Figure 5 Switching waveforms o 8 18 Doc ID 4282 Rev 8 q L6370 Circuit description 3 1 Diagnostic truth table Table 7 Diagnostic truth table Diagnostic conditions Input Output Diag1 Diag2 Normal operation b S R p H H H H L L H H Open load condition I lt lola 4 H L 4 L H L H hort to V sn H H L H Short circuit to ground lo lgc H X H H pin ON DELAY grounded L L H H L L H H tput DM Outpu OS open H L L H Overtemperature 5 d H L H L L L L L Supply undervoltage Vs lt Vsth2 H L L L 1 Acold lamp filament or a capacitive load may activate the current limiting circuit of the IPS when the IPS is initially turned on 3 2 Input section The input section is an high impedance differential stage with high common and differential mode range There s built in offset of 1 4 V typical value and an hysteresis of 400 mV maximum value to ensure high noise immunity 3 3 Diagnostic logic The operating conditions of the device are permanently monitored and the following occurrences are signalled via the DIAG1 DIAG2 open drain output pins Short circuit versus ground A current limiting circuit fixes at lse 3 2 A typical value the maximum current that can be sourced from the OUTPUT pin for more details see short cir2. kyy L6370 2 5 A high side driver industrial intelligent power switch Features 2 5 A output current 9 5 V to 35 V supply voltage range Internal current limiting Thermal shutdown Open ground protection Internal negative voltage clamping to Vs 50 V for fast demagnetization Differential inputs with large common mode range and threshold hysteresis Undervoltage lockout with hysteresis Open load detection Two diagnostic outputs Output status led driver Non dissipative short circuit protection Protection against and surge transient IEC 61000 4 5 m Immunity against burst transient IEC 61000 4 4 m ESD protection human body model 2kV PowerSO 20 Description The L6370 is a monolithic intelligent power switch in Multipower BCD Technology for driving inductive or resistive loads An internal clamping diode enables the fast demagnetization of inductive loads Diagnostic for CPU feedback and extensive use of electrical protections make this device extremely rugged and specially suitable for industrial automation applications Table 1 Device summary Part number Op temp range C Package Packaging L6370D 25 to 85 PowerSO 20 Tube L6370D013TR 25 to 85 PowerSO 20 Tape and reel July 2010 Doc ID 4282 Rev 8 1 18 www st com Contents L6370 Contents 1 Block diagram and pin description 3 1 1 Pimdescription pegamos dtes 4 2
3. 1 4 5 5 55 V voltage Output status threshold 2 Voth2 voltage See Figure 3 4 4 5 5 0 V Output status threshold Vohys hysteresis 300 500 700 mV losd Output status source current Vout gt Voth1 Vos 2 5V 2 4 mA V Active output status driver drop Va Vos log 2MA 15 3 V osd voltage Tamb 0 to 85 C i i Output status driver leakage Vout lt Voth2 Vos OV 25 A osk current Vs 9 5 to 35V d f D1 D2 L Idiag 0 5mA 40 Vagl Diagnostic drop voltage D1 D2 L Idiag 3mA 250 mv D1 D2 H 0 lt Vdg lt V lagik Diagnostic leakage current Vg 9 5 to 35V 5 pA Source drain NDMOS diode Visa Forward on voltage lisa 2 5A 1 1 5 lip Forward peak current tz 10ms d 20 6 tr Reverse recovery time l 2 5A di dt 25A us 200 ns ter Forward recovery time 100 ns Thermal characteristics OLim Junction temp protect 135 150 C OTH Thermal hysteresis 20 C Note Vi lt 0 8V Vp 2 2V V In gt V In 2 4 AC operation Table 6 AC operation Symbol Parameter Test condition Min Typ Max Unit tr t Rise or fall time Vs 24V Ry 709 Rj to ground 20 us td Delay time 5 us dV dt Slew rate rise and fall edge 0 7 1 1 5 V us On time during short circuit ton condition 50pF lt CpoN 2nF 1 28 us pF t Of time during short circuit 64 t OFF condition ON fmax Maximum operating frequency 25 KHz ky Doc ID 4282 Rev 8 7 18 Circuit description L6370 3 Circuit description Figure 3 Output status hysteresis
4. C Vano Undervoltage threshold 2 8 8 5 9 V Vath3 Supply voltage hysteresis 300 500 700 mV Vs 9 5 to 35V Hj 20 5kO 15 Rgc kQ A lsc Short circuit current Rsc lt 30kQ 0 lt Rsc lt 5KQ 2 6 3 2 4 A lout 2 0A Tj 25 C 200 280 mV Tj 125 C 320 440 Vgon Output voltage drop lout 2 5A T 25 C 250 350 mV Tj 125 C 400 550 losik Output leakage current Vi Vi Vo OV 500 uA Vol Low state out voltage Vi Vi RL o 0 8 1 5 V Internal voltage clamp lo 1A V 48 53 58 V el oa Single pulsed Tp 300 us loid Open load detection current Vi Vin Tamb 0 to 85 C 1 3 6 mA Vig Common mode input voltage Vg 18 to 35V 25 15 V range operative lib Input bias current Vi 7 to 15V In OV 250 250 uA Vith Input threshold voltage V In gt V In 0 8 1 4 2 V Vins Input threshold hysteresis Valo ven 50 400 mV voltage re 0 lt In lt 16V In OV 400 Rig Diff input resistance 7 lt In lt OV In OV 150 KQ V In V In li 20 20 OV lt Vi lt 5 5V li 75 25 l Input offset current MARN i pu m A ik d OV lt V Hn lt 5 5V i 250 125 In GND li 100 30 OV lt V In lt 5 5V li 50 15 6 18 Doc ID 4282 Rev 8 ky L6370 Electrical specifications Table 5 Electrical characteristics continued Symbol Parameter Test condition Min Typ Max Unit Voin Output status threshold
5. Electrical specifications llllleseeeeeeee 5 2 1 Absolute maximum ratings llle 5 2 2 Thermal data T issa sanga kase ane gus opkuskasag 5 2 3 Electrical characteristics Roe mh ki ewes ik a do 6 24 ACODEIONOM 2 0 ke kaosu oka s hie ER ba ION Edd Yd fric 7 3 Circuit description os isse e a mmm mE EE Renee C9 wee ea cee 8 3 1 Diagnostic truth table ius usus ss er m ROC ERE ee Seba deem an 9 3 2 Inp t Sectio una acte p Ere pb dox e kk ea d a s Pedo ees deve e aria 9 3 3 Diagnostic logic cepe ud CES ee take Glee x bet Reeders ee a gada 9 3 4 Short circuit operation _ 0 e 10 3 5 Overtemperature protection OVT n s anaana aae 10 3 6 Undervoltage protection UV nnana anaa aaea 10 3 7 Demagnetization of inductive loads lille 11 4 Package mechanical data lelllleeeeess 12 4 1 PowerSO 20 mechanical data and package dimensions 13 4 2 PowerSO 20 packing information liliis 14 5 Revision history gasa keca ara s e RCRCRCRC ga e GE CN UO RC kana va 17 2 8 Doc ID 4282 Rev 8 ky L6370 Block diagram and pin description XI Block diagram and pin description Figure 1 Block diagram UNDER CHARGE VOLTAGE PUMP ON DELAY OUTSTATUS DIAGNOSTIC THERMAL S PROTECTION Q DIAG2 O OUTPUT STATUS D95IN208D D95IN210B Note Output pins must be connected externally to the package to use all le
6. IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE ST PRODUCTS ARE NOT RECOMMENDED AUTHORIZED OR WARRANTED FOR USE IN MILITARY AIR CRAFT SPACE LIFE SAVING OR LIFE SUSTAINING APPLICATIONS NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY DEATH OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ST PRODUCTS WHICH ARE NOT SPECIFIED AS AUTOMOTIVE GRADE MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER S OWN RISK Resale of ST products with provisions different from the statements and or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever any liability of ST ST and the ST logo are trademarks or registered trademarks of ST in various countries Information in this document supersedes and replaces all information previously supplied The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2010 STMicroelectronics All rights reserved STMicroelectronics group of companies Australia Belgium Brazil Canada China Czech Republic Finland France Germany Hong Kon
7. Inn nin IT m Ly m ES uL 1 j1 0 T i t UTILE ATTI n PSO2 D1 a 1 OMEC gt hx45 0056635 q Doc ID 4282 Rev 8 13 18 Package mechanical data L6370 4 2 14 18 PowerSO 20 packing information Figure 9 PowerSO 20 tube shipment information f i HL ie i NN m Ay i P L C e z jan B a n TUBE MECHANICAL DATA mm inch A 18 80 0 740 B 17 2 0 2 0 677 0 008 C 8 20 0 2 0 323 0 008 D 10 90 0 2 0 429 0 008 E 2 90 0 2 0 114 0 008 F 0 40 0 016 G 0 80 0 031 H 6 30 0 248 I 4 30 0 2 0 165 0 008 J 3 7 0 2 0 146 0 008 K 9 4 0 370 L 0 40 0 016 M 0 80 0 031 N 3 50 0 2 0 138 0 008 BASE QUANTITY 31 pes BULK QUANTITY 310 pes Doc ID 4282 Rev 8 4 L6370 Package mechanical data 4 Figure 10 PowerSO 20 tape shipment specification oooo0o0oO0OO0O000 TAPE MECHANICAL DATA mm inch D 1 50 0 1 0 0 059 0 004 0 E 1 75 20 4 0 069 0 004 Po 4 00 0 1 0 157 0 004 T max 0 40 0 016 D1 min 1 50 0 059 F 11 5 0 05 0 453 0 002 K max 6 50 0 256 P2 2 00 0 1 0 079 0 004 R 50 1 968 W 24 00 0 30 0 945 0 012 P1 24 00 0 945 Ao Bo Ko 0 05 min to 1 0 max 0 002 min to 0 039 max BASE QUANTITY 600 pcs BULK QUANTITY 60
8. 0 pcs Doc ID 4282 Rev 8 15 18 Package mechanical data L6370 Figure 11 PowerSO 20 reel shipment specification gt T 40mm 1 575in min access hole at slot location y A Ao b eui enu S Usa eM EIQUE IN i measured Full radius perom Tape slot in core for tape start 2 5mm 0 098in min width REEL MECHANICAL DATA mm inch Tape size 24 0 0 30 0 945 0 012 A max 330 0 12 992 B min 1 5 0 059 C 13 0 0 20 0 512 0 008 D min 20 2 0 795 N min 60 2 362 G 24 4 2 0 0 960 0 079 0 T max 30 4 1 197 Figure 12 Footprint recommended data 1 1I JUI UL jail B C D 71 Y UL X FOOTPRINT DATA mm inch A 9 5 0 374 B 14 7 15 0 0 579 0 591 C 12 5 12 7 0 492 0 500 D 6 3 0 248 E 0 64 0 026 F 0 71 0 028 G 1 27 0 050 16 18 Doc ID 4282 Rev 8 4 L6370 Revision history q Revision history Table 8 Revision history Date Revision Changes 10 Aug 2003 3 Initial release Applied new Look amp Feel Style Sheet 12 Dec 2005 4 Added L6370D013TR part number Updated Package and Packing section 26 Apr 2006 5 Document has been reformatted 19 Feb 2007 6 Typo in Figure 2 on page 3 19 Jun 2007 7 Truth table updated deleted Multiwatt m
9. ads for the output current Pin 2 3 8 and 9 for PowerSO20 package Figure 2 Pin connection top view GND 1 GND OUTPUT 2 OUTPUT STATUS OUTPUT 8 INPUT ON DELAY 4 INPUT SUPPLY VOLTAGE 5 N C PowerSO 20 SUPPLY VOLTAGE 6 DIAGNOSTIC 2 N C 7 DIAGNOSTIC 1 OUTPUT 8 RSC OUTPUT 9 N C GND 10 GND Doc ID 4282 Rev 8 3 18 Block diagram and pin description L6370 1 1 4 18 Pin description Table 2 Pin description Pin N Pin name Function 14 DIAG1 DIAGNOSTIC 1 output This open drain reports the IC working conditions See diagnostic truth Table 7 15 DIAG2 DIAGNOSTIC 2 output This open drain reports the IC working conditions See diagnostic truth Table 7 18 IN Comparator non inverting input 17 IN Comparator inverting input This current source output is capable of driving a LED to signal the 19 OUTSTATUS status of the output pin The pin is active source current when the output pin is considered high See Figure 3 1 10 11 20 GND Ground 4 ON DELAY _ Programmable ON time interval duration during short circuit operation 13 RSC Current limitation setting 8 9 OUTPUT High side output with built in current limitation 5 6 V Supply Voltage Input the value of the supply voltage is monitored to S detect under voltage condition 4 Doc ID 4282 Rev 8 L6370 Electrical specifications 2 1 2 2 q Electrical specifications Absolut
10. cuit operation section Short circuit versus Vs Under voltage UV Over temperature OVT Open load if the output current is less than 3 mA typical value Output DMOS open according to the diagnostic truth Table 7 Doc ID 4282 Rev 8 9 18 Circuit description L6370 3 4 3 5 3 6 10 18 Short circuit operation In order to minimize the power dissipation when the output is shorted to grounded an innovative non dissipative short circuit protection patent pending is implemented avoiding thus the intervention of the thermal protection in most cases Whenever the output is shorted to ground or generally speaking an overcurrent is sink by the load the output devices is driven in linear mode sourcing the Isc current typically 3 2 A for a time interval ton defined by means of the external CON capacitor connected between the ONDELAY pin and GND Whether the short circuit crease within the ton interval the DIAG2 output status is not affected acting as a programmable diagnostic delay This function allow the device to drive a capacitive load or a filament lamp that exhibits a very low resistance during the initial heading phase without the intervention of the diagnostic If the short circuit lasts for the whole toy interval the output DMOS is switched OFF and the DIAG2 goes low for a time interval torr lasting 64 times ton At the end of the tor interval if the short circuit condition is still present the o
11. e maximum ratings Table 3 Absolute maximum ratings Symbol Parameter Value Unit Vs Supply voltage Tw lt 10ms 50 V _ Supply to output differential voltage Vs Vo See also Vo internally limited V Vod Externally forced voltage 0 3 to 7 V log Externally forced current 1 mA Vi Input voltage 10 to Vg 10 V Vi Differential input voltage 43 V li Input current 20 mA lo Output current see also ISC internally limited A Power dissipation ee PTOT see also thermal characteristics internally inked w Top Operating temperature range Tamb 25 to 85 C TsrG Storage temperature 55 to 150 C Ej Energy induct load Ty 85 C 1 J Thermal data Table 4 Thermal data Symbol Description Value Unit RthuA Thermal resistance junction to case Thermal resistance junction to ambient Max Doc ID 4282 Rev 8 5 18 Electrical specifications L6370 2 3 Electrical characteristics Vs 24V Ty 25 to 125 C unless otherwise specified Table 5 Electrical characteristics Symbol Parameter Test condition Min Typ Max Unit Supply voltage for valid a Vamin diagnostics ldiag 0 5mA Vagi7 1 5V 4 35 V Vs Supply voltage operative 9 5 24 35 V i Vi 0 8 1 4 lg Quiescent current il mA lout los 0 Vin 3 4 Vsth1 Undervoltage threshold 1 See Figure 4 Tamb 0 to 8 5 9 9 5 V 85
12. echanical information 20 Jul 2010 8 Updated Table 3 on page 5 and Table 5 on page 6 Doc ID 4282 Rev 8 17 18 L6370 Please Read Carefully Information in this document is provided solely in connection with ST products STMicroelectronics NV and its subsidiaries ST reserve the right to make changes corrections modifications or improvements to this document and the products and services described herein at any time without notice All ST products are sold pursuant to ST s terms and conditions of sale Purchasers are solely responsible for the choice selection and use of the ST products and services described herein and ST assumes no liability whatsoever relating to the choice selection or use of the ST products and services described herein No license express or implied by estoppel or otherwise to any intellectual property rights is granted under this document If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein UNLESS OTHERWISE SET FORTH IN ST S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION
13. fixed by the Vsth1 9 V typ and Vago 8 5 V typ Doc ID 4282 Rev 8 ky L6370 Circuit description 3 7 The hysteresis see Figure 4 ensures a non intermittent behavior at low supply voltage with a superimposed ripple The under voltage status is signalled via the DIAG1 and DIAG2 outputs see the Diagnostic Truth Table 7 Demagnetization of inductive loads An internal zener diode limiting the voltage across the Power MOS to between 50 and 60 V Va provides safe and fast demagnetization of inductive loads without external clamping devices The maximum energy that can be absorbed from an inductive load is specified as 1J at T 85 C see Table 3 Figure 6 L6370 short circuit operation waveforms OUTPUT GURRENT torr Time tOFF ton DI LI 1 1 1 1 1 tuit 1 i 1 1 i 1 Os NT Time Figure 7 Inductive load equivalent circuit Vs OUTPUT Q D95IN215A Doc ID 4282 Rev 8 11 18 Package mechanical data L6370 4 12 18 Package mechanical data In order to meet environmental requirements ST offers these devices in different grades of ECOPACK packages depending on their level of environmental compliance ECOPACK specifications grade definitions and product status are available at www st com ECOPACK is an ST trademark Doc ID 4282 Rev 8 ky L6370 Package mechanical data 4 1 PowerSO 20 mechanical data and package di
14. g India Israel Italy Japan Malaysia Malta Morocco Philippines Singapore Spain Sweden Switzerland United Kingdom United States of America www st com 18 18 Doc ID 4282 Rev 8 ky
15. mensions Figure 8 _PowerSO 20 mechanical data and package dimensions DIM mm inch MIN TYP MAX MIN TYP MAX OUTLINE AND A 3 6 0 142 MECHANICAL DATA al 0 1 0 3 0 004 0 012 a2 3 3 0 130 a3 0 0 1 0 000 0 004 b 0 4 0 53 0 016 0 021 Weight 1 9gr c 0 23 0 32 0 009 0 013 D 1 15 8 16 0 622 0 630 D1 2 9 4 9 8 0 370 0 386 13 9 14 5 0 547 0 570 e 1 27 0 050 e3 11 43 0 450 E1 1 10 9 11 1 0 429 0 437 E2 2 9 0 114 E3 5 8 6 2 0 228 0 244 G 0 0 1 0 000 0 004 H 15 5 15 9 0 610 0 626 h a 9 043 JEDEC MO 166 L 0 8 1 4 0 031 0 043 N S T 10 0 394 UE EM LU PowerSO 20 Critical dimensions E G and a3 2 For subcontractors the limit is the one quoted in jedec MO 166 N N R i N 2 i i c b E ait gt DETAIL A ES DETAIL B E e3 s H M DETAIL A lead D ter b I a a3 slug i DETAIL B ry 20 1 0 35 Gage Plane Y ET ts L pum PLANE CN G C e 9 nap nane l pits E1 BOTTOM VIEW COPLANARITY i
16. utput DMOS is turned ON and the DIAG2 goes high see Figure 7 for another toy interval and the sequence starts again or whether not the normal condition operation is resumed The toy interval can be set to lasts between 64 ms and 2 56 ms for a Coy capacitor value ranging between 50 pF and 2 nF to have ton us 1 28 Con pF If the ON DELAY pin is grounded the non dissipative short circuit protection is disabled and the Isc current is delivered until the overtemperature protection shuts the device off The behaviour of the DIAG2 output is in this situation showed in the Diagnostic Truth Table 7 Overtemperature protection OVT If the chip temperature exceeds Qlim measured in a central position in the chip the chip deactivates itself The following actions are taken all the output stage is switched off the signal DIAG2 is activated active low Normal operation is resumed as soon as typically after some seconds the chip temperature monitored goes back below j Oy The different thresholds with hysteretic behavior assure that no intermittent conditions can be generated Undervoltage protection UV The supply voltage is expected to range from 9 5 V to 35 V even if its reference value is considered to be 24 V In this range the device operates correctly Below 9 5 V the overall system has to be considered not reliable Protection will thus shut off the output whenever the supply voltage falls below the mask
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ST L6370 handbook