ST L9466 handbook
Contents
1. Table 2 Pin description N Pin Description 1 Veo Generator Output Voltage Sense and Power Supply to ASVR 2 F Field Driver High Side Drive Output 3 G Ground for ASVR Must be connected for Ground for ASVR 4 NC Not connected 5 Gnd Internally connected to the Tab or Slug in MW 8 6 DF Inverted Field Monitor Output 7 L Lamp Low Side Driver Relay High Side Driver 8 P Phase Sense Input Figure 2 Pin connection top view L Tab connected to pin 5 DO2AT5O2B L9466 Electrical specifications Electrical specifications 3 1 Absolute maximum ratings Table 3 Absolute maximum ratings Symbol Parameter Value Unit loc Output current capability Internally limited Piot Power dissipation 6 W Short circuit protected All terminal to VGO and ground 3 2 Thermal data Table 4 Thermal data Symbol Parameter Value Unit Tj Junction temperature 40 to 150 C Tstg Storage temperature 50 to 150 C Tod Thermal shut down 175 15 C Rin case Thermal resistance junction to case 1 5 C W 3 3 Electrical characteristics Table 5 Electrical characteristics Tease 35 C to 150 C continuous unless otherwise specified Symbol Parameter Test condition Min Typ Max Unit Vos Operating supply voltage Tease 25 C to 150 C 8 Vov V Vos Operating supply voltage Tease 40 C to 25 C2. Kyy L9466 Car alternator voltage regulator Features For air and liquid cooled applications DF output inverted field monitor Thermal protection Fleld driver lamp driver relay driver and DF field monitor short circuit protected m Load response control Multiwatt8 m Single phase autostart Description This All Silicon Voltage Regulator regulates the output of an automotive generator by controlling The L9466 is a monolithic multifunction generator Voltage regulator intended for use in automotive the field winding current by means of a variable charging applications frequency PWM high side driver Table 1 Device summary Order code Package Packing L9466N Multiwatt8 Tube October 2008 Rev 2 1 11 www st com Contents L9466 Contents 1 Block diagram so assar oa ad eae eee eee ee ee eae er a 3 2 Pin description cocaina 4 3 Electrical specifications 0 0 cee eee 5 3 1 Absolute maximum ratings 5 3 2 Thermal data spira aa PA La e 5 3 3 Electrical characteristics LL 5 4 Package information rei 9 5 Revision history incinta ea etna eee 10 2 11 Ti L9466 Block diagram 1 2 Block diagram Figure 1 Block diagram To ECM Field _ Rotor TA Starter Battery Q Stator VA Loads Rectifier gt Bridge 3 11 Pin description L9466 2 4 11 Pin description
3. SS LRC Rate VDF 32 35V at 2 2kO 16 1 The Field Drive capability shall not decrease as a function of temperature between 25 C and 150 C at a rate faster than 0 024A C for example Field Drive shall be capable of gt 7 2A at 100 C Figure 3 Set point voltage vs mounting tab temperature amp i s R S 4 13 5 s0 Temperature C 6 11 2 L9466 Electrical specifications Table 6 Diagnostic Tease 35 C to 150 C unless otherwise specified Symbol Parameter Conditions Min Typ Max Units Voy Over voltage Vop 1 o Vsp 2 V Vuv Under voltage Fp gt Fpirc 0 95 1 8 VL sar Lamp ON saturation voltage IL 0 5A sinked by ASVR gt VLacTt 1 33 1 45 V VL sarBo Lamp ON voltage ei open Teasa 3 8 5 V ais o drive be 750mA Sourced by ASVR 1 85 v ge vs B Tease lt 125 C TpeLay Fault indication delay time Delay before Lamp ON 0 9 1 1 1 3 s 1 This condition can happen when the connection between the battery and VGO or the output terminal of the generator is broken The 1 1 second delay is not required and current is sinked by ASVR 2 When no fault is detected the Lamp terminal is pulled up by ASVR Table 7 Fault indication table Conditions TDelay Initial KEY ON Bulb and Wiring Check Lamp ON for 1 sec 15 after initial KEY ON No Veo gt Vov Yes
4. 10 Vov V Veo 12 6V Tease 25 C 10kQ F G amp Tab Slug Isp Stand by current Grounded L DF amp P 300 pA unconnected Regulator not activated Vsp Regulator set point Curve shown in Figure 3 No battery lout 2A to 50 Vsp VnB Generator output no battery Max Load Vsp 2 2 V Tc Thermal compensation Voltage Veo Curve shown in Figure 3 VLR Load regulation 6500 grpm 10 to 95 load 300 mV Vsr Speed regulation 15A load 2000 to 20 000 grpm 100 mV Ve on Output saturation voltage p GA Veo STES 750 mV Toase 25 C Y 5 11 Electrical specifications L9466 Table 5 Electrical characteristics continued Tease 35 C to 150 C continuous unless otherwise specified Symbol Parameter Test condition Min Typ Max Unit Ir 5A Veo 13 5V Ve on Output saturation voltage Tease 125 C 850 mV Current F Terminal to Gnd lF Field limit current 9 0 A FEM O Tease lt 25 C Current F Terminal to Gnd lF Field limit current 6 0 A FLIM O Tease 150 C Ia min Min generator current load Cufani measured generator 0 5 A output Vp p Field discharge diode Ir 6A Tease 25 C 1 85 V lb r _ Diode reverse current Vp 20V 1 mA Fosc Oscillation frequency During LRC operation 340 400 460 Hz Vpr DF saturation voltage Ipr lt 10mA 0 8 V IpF LK DF output leakage current Vpr lt 25V 10 pA Frurso nternal clock frequency Vpr 32 35V at 2 2kO 4X Hz FTURBO IRD
5. CTS INCLUDING WITHOUT LIMITATION 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 2008 STMicroelectronics All rights reserved STMicroelectronics group of companies Australia Belgium Brazil Canada China Czech Republic Finla
6. Vp lt VP F AND Veo lt Vsp Yes Fp lt Fp tR VP TR Yes No Connection Between Battery and Veo No At Start Lamp ON until Fp gt Fp jp AND Vp gt Vp i e until Vp reaches 8V No Table 8 Regulation features Symbol Parameter Conditions Min Typ Max Unit L terminal regulator activate VL PpD threshold VGO 12 6V 0 8 1 1 15 V IL pp L terminal pull down current Vi VLact 0 09 0 78 mA VGO 12 6V Initiate regulation phase voltage VP IR threshold Regulator Activated 1 1 1 3 1 5 V Vp gt 1 5V and lt 12 6V I Phase terminal t sink 2 A P ase terminal current sin VGO 12 6V 0 25 3 5 m fr Initiate regulation phase 123 145 167 Hz frequency Fasi co regulation phase 59 72 86 Hz requency Regulator activated Vp jp and IRD Initiate regulation delay Fpp Conditions Met First Time 1 7 2 2 3 s 4 7 11 Electrical specifications L9466 Table 8 Regulation features continued Symbol Parameter Conditions Min Typ Max Unit Regulator activated AND FSDC Field strobe duty cycle regulation terminated OR 16 18 75 22 regulation NOT initiated LRC Load response control rate Field drive duty cycle increase 8 5 10 11 5 Vols Fpirc LRC transition frequency LRC enabled if Fp lt Fp LrRc 255 300 345 Hz SS Soft start PAS erat Uni Mep teamed gg 40 46 s regardless other conditions 8 11 IST L9466 Package information Package information In order t
7. ial release Revalidation document 21 Oct 2008 2 Document reformatted Updated Section 2 Pin description on page 4 L9466 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 PRODU
8. nd France Germany Hong Kong India Israel Italy Japan Malaysia Malta Morocco Singapore Spain Sweden Switzerland United Kingdom United States of America www st com 11 11 4
9. o meet environmental requirements ST also offers these devices in ECOPACK packages ECOPACK packages are lead free The category of second Level Interconnect is marked on the package and on the inner box label in compliance with JEDEC Standard JESD97 The maximum ratings related to soldering conditions are also marked on the inner box label ECOPACK is an ST trademark ECOPACK specifications are available at www st com Figure 4 Multiwatt8 mechanical data and package dimensions mm inch DIM Tain TYP MAX MIN TYP MAX OUTLINE AND A E 0 197 MECHANICAL DATA B 2 65 0 104 Cc 16 0 063 E 049 oss foots 0 022 F 078 0 85 0 030 0 033 G 240 2 54 268 0 094 0 10 0 105 GI 17 64 17 78 17 92 0 69 0 70 0 71 Hi 19 6 0 772 H2 20 2 0 795 L 20 35 20 65 0 80 0 81 L2 17 05 17 20 17 35 0 67 0 68 0 68 L3 17 25 17 5 17 75 0 679 0 689 0 699 L4 10 3 10 7 10 9 0 406 0 421 0 429 L7 2 65 2 9 0 104 0 114 s 19 26 0 075 0 102 st 19 2 6 0 075 0 102 u 0 40 0 55 0 015 0 022 z 070 0 85 0 028 0 034 Multiwatt8 Pin 5 GND Dial 3 65 3 85 0 144 0 152 0043696 F 9 11 Revision history L9466 5 10 11 Revision history Table 9 Document revision history Date Revision Changes 17 May 1994 1 Init
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ST L9466 handbook