Features

 AEC-Q100 qualified

 Full ISO26262 compliant, ASIL-D systems

ready

 Integrated boost regulator, 9 V, 300 mA,

2 MHz (opt. populated diode & inductor) for

deep cranking pulse (Stop&Start) & weak

battery conditions

 Integrated buck pre-regulator, 6.5 V / 7.2 V,

1 A, 465 kHz

 Integrated LDO, 5 V, 250 mA for μC I/O and

ADC supply

 Integrated configurable LDO, 3.3 V / 5 V,

100 mA for μC I/O supply

 Configurable and programmable regulator with

external FET, 0.8 V to 5 V for μC core supply

– up to 1 A in buck configuration

– up to 750 mA in linear configuration

 Spread spectrum approach to reduce EMC

emissions

 Four channels configurable remote sensor

interface

– wheel speed sensor protocol

– tracking regulator supply (3.3 V - 5 V)

– reverse battery protection and integrated

digital decoding

 High-side pre-drivers for fail safe (On/off

control) and for motor pump (PWM control)

 SPI communication bus

 Configurable 3.3 V / 5 V I/O level

 Configurable and programmable double

watchdog (Q&A WD and time-windowed WD)

 Double voltage reference for regulated rail

reference and monitoring

 Configurable Fail-Safe Functionality (Mode /

Safe Delay)

 Fail-Safe Output (FSN)

 Wake-up input

 Low-side general purpose output with

programmable PWM control

 Integrated 10-bits ADC with system

diagnostics

 Discrete analog inputs for integrated ADC

measurement (3 ch.)

 Voltage monitoring UV/OV on all regulated rails

 Temperature monitoring and thermal shutdown

 Operating voltage: VBATP: 4.5 V to 19 V with

boost; 6 V to 19 V without boost

 Ambient temperature range: -40 °C to 135 °C

 Package: TQFP64EP (10x10x1mm)

Description

The L9396 is an integrated power management System Basis Chip targeting a large spectrum of automotive electronics applications, in particular ABS, EPS and Transmission, compatible with single (12 V) battery system.

It combines a switched mode power supply for pre-regulation along with 3 independent integrated linear regulators and a powerful configurable regulator for μC supply that can operate either in buck or linear mode with an external FET.

The device also integrates a 4-channel flexible interface for Wheel Speed Sensor or tracking regulation, 2 configurable pre-drivers for fail safe and motor pump, 1 configurable general purpose outputs, wake-up detection circuitry, advanced fail-safe functionality, watchdog control and system monitoring.

The boost regulator (optionally enabled) is intended to sustain cold cranking pulses, stop & start and weak battery conditions, while the buck pre-regulator drastically improves the power efficiency and CO2 emissions.

Different combinations enable to supply the system microcontroller and external peripheral loads and sensors with wide current ranges and adjustable voltage levels.

In addition, the L9396 provides enhanced system standby functionalities.