L9788

L9788 Multifunction IC for automotive engine management system Data brief  1 channel LS main relay driver (MRD) with internal diode for reverse battery protection  5 channels pre-drivers for external FET drivers - Predriver 1&3 configurable for O2H load with external Rshunt-on the source of Ext. N-Channel Mos  6 channels pre-drivers for internal or external igniter drivers /4)3[[PP H[SRVHGSDGGRZQ  1 K-Line ISO9141/LIN 2.1 compliant *$'*36  Integrated charge-pump  VRS-interface Features  Watchdog  AEC-Q100 qualified  Pin Wake-up  Engineered for ISO26262 compliant system  Temperature sensor and monitoring  1 pre boost regulator and 1 pre buck regulator  Stop-counter with Wake-up  1 linear 5 V regulator with 1 A output current  Dual bandgap reference & oscillator  3 independent self-protection 5 V tracking regulator with 150 mA output.  Micro-second-channel MSC for differential single ended mode  1 input voltage pin for monitor external tracking.  SEO function  Coordinated soft start-up of all regulators  Package LQFP100 exposed pad  CAN-FD with wake up by CAN function  4 channels LS injector LS drivers  2 channels LS drivers for O2H load with current sense  2 channels LS camshaft or solenoid drivers  5 channels LS relay drivers Description The L9788 is an integrated circuit designed for automotive engine management system. L9788 is a device realized in ST BCD proprietary technology, able to provide the full set of power supplies and signal preprocessing peripherals needed to control a 4 cylinders internal combustion engine.  2 channels LS LED drivers  3 channels LS/HS drivers with low battery function for smart start Table 1. Device summary Order code Package Packing L9788 LQFP100 14x14x1.4 mm (Exposed pad down 7.6x7.6 mm) Tube L9788TR October 2017 DocID031109 Rev 1 For further information contact your local STMicroelectronics sales office. Tape & Reel 1/12 www.st.com Contents L9788 Contents 1 2 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.1 LQFP100 (14x14x1.4 mm exp. pad down) package information . . . . . . . . 8 2.1.1 3 2/12 Exposed pad size option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 DocID031109 Rev 1 L9788 Block diagram and pin description 1 Block diagram and pin description 1.1 Block diagram Figure 1. Block diagram *$'*36 DocID031109 Rev 1 3/12 12 Block diagram and pin description 1.2 L9788 Pin description %RRVWB*  9%$7B6HQVH  9%B,1  &3  %XFNB&B%67  9%B,1B6:  %XFNB6:  &855B6HQVHB2+  2+B3*1'%  2+%  2+B3*1'$  2+$  2+B3*1'% &$1+  2+% &$1/  2+$ &$1B5;  2+B3*1'$ *1'  &855B6HQVHB2+ &$1B7;   9''B&$1 9%B&$1 *1'B&$1 Figure 2. Pin connection diagram (top view)         96(16( :DNHLQ   96(16( 05'   62/ ,1-   62/B3*1' ,1-B3*1'   62/ ,1-   ,*1 675B'51   ,*1 675B65&   35'B'51 675B65&   35'B*$7( 675B'51   35'B*$7( 675B'51   35'B'51 675B65&   35'B'51 /('   35'B*$7( /('   35'B*$7( *1'   35'B'51 :'$   35'B'51 5671   35'B*$7(                          *1'  06&B',B1 96(16( .H\LQ 06&B',B3  06&B&.B3  06&B&.B1 935( 96(16(B021 06&B(1  ,*1  ,*1 3'5B*1' 9%B67%< 5/