The use of satellite collision sensors in airbag systems is increasing, with the goal of providing a higher level of passenger safety in the event of an accident. Microcontrollers (MCUs) must deliver powerful performance in order to be able to process at high speed the large volume of data input by these sensors. There is also a need for flexible peripheral interfaces such as high-speed SPIs* for communication with peripheral devices, timer modules for cooperative control with other ECUs, and CAN modules.

Based on an extensive product lineup ranging from the low to the high end of the market, Renesas offers solutions for all sorts of safety systems, from passenger detection to airbag unit control. We also supply squib drivers and sensor ASICs based on analog products that have an extensive track record in automotive applications conforming to a system approach.

*SPI: Serial Peripheral Interface

Airbag System Block Diagram

Related Products

Microcontrollers

Recommended Product ROM
(Bytes)
RAM
(Bytes)
Operating
Frequency
(MHz)
Package
(Pin Count)
Features
RH850/F1KH-D8 6144-8192 896 2x240 176-324 CAN/CAN FD 12ch, LIN, FlexRay 2ch, Ethernet 2ch, ICU *1
RH850/F1KM-S4 3072-4096 384-512 240 100-272 CAN/CAN FD 8ch, LIN, FlexRay, Ethernet, ICU *1
RH850/F1KM-S1 512-1024 64-128 120 48-100 CAN/CAN FD 6ch, LIN, ICU *1
RH850/F1K 768-2048 96-192 120 100-176 CAN/CAN FD 6ch, LIN, ICU *1
RH850/F1H

3072-6144

320-576

2x120

176-272

CAN 7ch, LIN, FlexRay, Ethernet, ICU *1

RH850/F1L

256-2048

32-192

96

48-176

CAN 6ch, LIN, ICU *1

*1 ICU: Intelligent Cryptographic Unit

Analog/Power Devices

Analog/Power Device Recommended
Product
Features
EPS
Motor Drive MOSFET
for 3-Phase Brushless Motors
NP180N04TUK 40V/1.05mΩ, TO-263 7-pin
NP160N04TUK 40V/1.5mΩ, TO-263 7-pin
NP109N04PUK 40V/1.75mΩ, TO-263
NP110N04PUK 40V/1.4mΩ, TO-263
EPS
Motor Drive MOSFET for H-bridge Motors
NP89N04PUK 40V/2.95mΩ, TO-263
NP89N04PDK 40V/2.95mΩ, TO-263
NP60N04PDK 40V/3.95mΩ, TO-263
NP90N04VUK 40V/2.8mΩ, TO-252
NP75N04YUG 40V/4.8mΩ, 8-pin HSON
Brake System
Motor Drive MOSFET
NP110N04PUK 40V/1.4mΩ, TO-263
NP109N04PUK 40V/1.75mΩ, TO-263
NP100N04PUK 40V/2.3mΩ, TO-263
Brake System
Hydraulic Solenoid Drive MOSFET
NP75N04YUG 40V/4.8mΩ, 8-pin HSON
NP33N06YDG 60V/14mΩ, 8-pin HSON
Air-bag System
MOSFET and IPD for Failsafe Switches
UPD166033T1U 42V/6mΩ, TO-252 7-pin, single-channel, high-side IPD, protection function, load current sensor
UPD166034T1U 42V/8mΩ, TO-252 7-pin, single-channel, high-side IPD, protection function, load current sensor
UPD166031AT1U 42V/10mΩ, TO-252 7-pin, single-channel, high-side IPD, protection function, load current sensor
UPD166032T1U 42V/12mΩ, TO-252 7-pin, single-channel, high-side IPD, protection function, load current sensor
RJE0603JPE -60V/15mΩ, thermal FET
Op-Amp READ2351JSP Full range input/output, low power consumption
READ2352JSP Full range input/output, high slew rate
UPC1251/UPC451 Low power consumption
UPC842/UPC844 High slew rate
Comparator UPC277/UPC177 Low power consumption

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