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L9966

STMicroelectronics
Part Number L9966
Manufacturer STMicroelectronics
Description automotive grade-IC
Published Mar 6, 2023
Detailed Description L9966 Datasheet FlexInput IC for automotive applications Product status link L9966 Product summary Order code L9966C...
Datasheet PDF File L9966 PDF File

L9966
L9966

Overview
L9966 Datasheet FlexInput IC for automotive applications Product status link L9966 Product summary Order code L9966CB-TR Package TQFP48 Packing Tape and reel Features • AEC-Q100 qualified • 12 V and 24 V systems compatible (operating battery supply voltage 5.
5 V-36 V) • Programmable interface with 15 total inputs: – 12 for connection to external analog loads (with connection to VVAR, VDD5 and clamped battery VPRE, with resistance measurement) ◦ 4 with also λ sensor functionality ◦ 4 with also SENT functionality – 3 for connection to external digital switches (with connection to VPRE) • Programmable pull-up/down current sources • Integrated precise resistance measurements • 12-bit ADC for voltage measurements • 15-bit ADC for resistance measurements • Variable reluctance sensor / Hall sensor Interface • 1 analog output channel + 4 digital output channels • SPI interface for device configuration and data communication • Overtemperature protection • Thermal resistance Rth(j-c) = 3 K/W Description The L9966 is an automotive grade IC designed to be used as sensors interface.
Up to 15 channels are available for analog sensing, resistance measurement and digital sensing (e.
g.
temperature, lambda, pressure, position sensors).
The L9966 allows replacing a number of discrete components and it gives the possibility to change the sensors across different applications without modifying the PCB hardware.
Target applications are Engine Control Units and Body/Chassis Modules.
DS12459 - Rev 10 - September 2022 For further information contact your local STMicroelectronics sales office.
www.
st.
com 1 Block diagram Figure 1.
Block diagram L9966 Block diagram DS12459 - Rev 10 GADG0401180943PS page 2/122 2 Pin description Figure 2.
Pin connection diagram L9966 Pin description UBSW WAKE IO_5 IO_6 IO_7 IO_8 IO_9 IO_10 IO_11 IO_12 nc nc RR3 1 RR2 2 RR1 3 R_GND 4 VRSP 5 VRSN 6 GND 7 VDD5REF 8 AOX 9 VT5V 10 VRS_OUT 11 VI5V 12 48 47 46 45 44 43 42 41 40 39 38 37 13 14 15...


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