WHAT IS ABS?
ABS stands for Anti-lock Braking System, a key safety feature in most modern cars and trucks. Anti-lock brakes work with a car’s regular brake system by automatically pumping them in the event of a sudden stop.
HOW DOES ABS WORK?
When making a sudden stop, it is possible that one or more of your vehicle’s wheels could lock up, leaving you with little control of your vehicle. During wheel lock, the wheels of your vehicle stop rotating, causing your car to slide. For years, drivers were taught to pump the brakes when they felt their vehicle steering into a skid.
Today, ABS technology automates the brake pumping process so you can concentrate on steering the vehicle to safety during an emergency situation. By preventing your car’s wheels from locking, anti-lock brakes ensure that you are able to steer during a hard braking event.
In an anti-lock braking system, your car’s wheel speed is monitored and if wheel lock is detected, a sensor sends a message to a controller that releases and applies the brake up to 20 times per second, preventing a lock up and helping you maintain control of your vehicle.
In many of today’s newer cars and trucks, anti-lock brakes work in conjunction with other safety systems like traction control and electronic stability control to deliver a safer driving experience.
ARE ANTI-LOCK BRAKES DIFFERENT FROM CONVENTIONAL BRAKES?
Yes. When you press the brake pedal hard on conventional brakes, one or more of the wheels can lock up. Thanks to the automatic pumping action of anti-lock brakes, you can maintain control and steer to safety during a quick stop.
Anti-locking braking systems Design considerations
●To improve solenoid drop out time the body diode is avalanched, hence the MOSFET must be avalanche rugged
●The safety switch MOSFET is normally continuously ON
●Protect against EMI noise by ensuring sufficient suppression and filtering
Motor drive MOSFET: 40 V, LFPAK88
LFPAK88 MOSFETs
Driving power-density to the next level
Providing a true alternative to D²PAK, Nexperia’s LFPAK88 delivers industry leading power density in truly innovative 8mm x 8mm footprint. Delivering 2x higher continuous current rating, ultimate thermal performance and reliability, and up to 60% space saving efficiency, making LFPAK88 the MOSFET of choice for the most challenging new designs. Available in both automotive AEC-Q101 and industrial grades
Featured products
N-channel 40 V, 0.55 mOhm, 500 Amps continuous, standard level MOSFET in LFPAK88 using NextPowerS3 Technology
500 Amp continuous current, standard level gate drive, N-channel enhancement mode MOSFET in LFPAK88 package. NextPowerS3 family using Nexperia’s unique “SchottkyPlus” technology delivers high efficiency and low spiking performance usually associated with MOSFETs with an integrated Schottky or Schottky-like diode but without problematic high leakage current. NextPowerS3 is particularly suited to high efficiency applications at high switching frequencies, and also safe and reliable switching at high load-current.
Automotive qualified N-channel MOSFET using the latest Trench 9 low ohmic superjunction technology, housed in a copper-clip LFPAK88 package. This product has been fully designed and qualified to meet beyond AEC-Q101 requirements delivering high performance and reliability.
Automotive qualified N-channel MOSFET using the latest Trench 9 low ohmic superjunction technology, housed in a copper-clip LFPAK88 package. This product has been fully designed and qualified to meet beyond AEC-Q101 requirements delivering high performance and reliability.
Safety switch MOSFET: 40 V, LFPAK88
LFPAK88 MOSFETs
Providing a true alternative to D²PAK, Nexperia’s LFPAK88 delivers industry leading power density in truly innovative 8mm x 8mm footprint. Delivering 2x higher continuous current rating, ultimate thermal performance and reliability, and up to 60% space saving efficiency, making LFPAK88 the MOSFET of choice for the most challenging new designs. Available in both automotive AEC-Q101 and industrial grades
Solenoid drive MOSFET: 40 V, LFPAK56
Automotive MOSFETs
The world's largest portfolio of AEC-Q101 qualified power MOSFETs
An in-depth understanding of automotive system requirements and focused technical capability enables Nexperia to provide power semiconductor solutions across a wide spectrum of applications. From driving a simple lamp to the sophisticated needs of power control in engine, body or chassis applications, Nexperia power semiconductors can provide the answer to many automotive system power problems.
Products：
P-channel enhancement mode Field-Effect Transistor (FET) in a small SOT23 (TO-236AB) Surface-Mounted Device (SMD) plastic package using Trench MOSFET technology.
Dual N-channel enhancement mode Field-Effect Transistor (FET) in a very small SOT363 (SC-88) Surface-Mounted Device (SMD) plastic package using Trench MOSFET technology.
Solenoid drive MOSFET: 60 V, Automotive ASFETs for Repetitive Avalanche
Automotive ASFETs for Repetitive Avalanche
Guaranteed repetitive avalanche performance, automotive qualified
When using MOSFETs to power inductive loads such as driving solenoids, most circuit designs include additional components to protect the MOSFET when the load current continues to flow during switch off. This can range from highly efficient but expensive boost topologies that reuse the energy, to the less efficient but more cost-effective approach of using a freewheeling diode. The simple alternative option of a repetitive avalanche set-up has historically only been possible using planar technology. By optimizing MOSFETs to comfortably handle repetitive avalanche currents while maintaining a junction temperature below 175 °C, Nexperia offers a truly rugged device that delivers numerous system level savings.
Featured products
Dual, logic level N-channel MOSFET in an LFPAK56D package, using Application Specific (ASFET) repetitive avalanche silicon technology. This product has been designed and qualified to AEC-Q101 for use in repetitive avalanche applications.
Dual, logic level N-channel MOSFET in an LFPAK56D package, using Application Specific (ASFET) repetitive avalanche silicon technology. This product has been designed and qualified to AEC-Q101 for use in repetitive avalanche applications.
Dual, logic level N-channel MOSFET in an LFPAK56D package, using Application Specific (ASFET) repetitive avalanche silicon technology. This product has been designed and qualified to AEC-Q101 for use in repetitive avalanche applications.
Schottky rectifiers: 100 V
Schottky diodes and rectifiers IF ≥ 1 A
Space and performance benefits for DC/DC converters
Our PMEG family of Schottky diodes and rectifiers with a forward current of 1 A and above are ideal as reverse polarity protection or freewheeling diodes in DC/DC converters. They provide space and performance benefits. Package options include automotive qualified copper clip-bond CFP packages as well as standard SMD and leadless DFN packages.
Products：
Planar Schottky barrier rectifier with an integrated guard ring for stress protection, encapsulated in a leadless ultra small SOD1608 (DFN1608D-2) Surface-Mounted Device (SMD) plastic package with visible and solderable side pads.
Planar Maximum Efficiency General Application (MEGA) Schottky barrier rectifier in common cathode configuration with an integrated guard ring for stress protection, encapsulated in an ultra thin DFN2020D-3 (SOT1061D) leadless small Surface-Mounted Device (SMD) plastic package with visible and solderable side pads.
ESD: CAN / Flexray bus protection
LIN/CAN(FD)/FlexRay
Dedicated ESD protection devices to ensure safe operation
In-vehicle networks consists of multiple mircoprocessors communicating over different networks. LIN/CAN(FD)/FlexRay are highly reliable in-vehicle network protocols to handle the car's physically challenging environment. Nexperia offers dedicated ESD protection devices meeting emission, immunity and signal integrity requirements to ensure safe operation.
Products：
PESD1IVN24-LS
ESD protection device in a leadless ultra small DFN1006BD-2 (SOD882BD) Surface-Mounted Device (SMD) plastic package with side-wettable flanks, designed to protect automotive In-vehicle network bus lines from the damage caused by ElectroStatic discharge (ESD) and other transients.
PESD2CANFD24UU-Q
ESD protection device in a small SOT323 (SC-70) Surface-Mounted Device (SMD) plastic package, designed to protect two automotive in-vehicle network bus lines from the damage caused by ElectroStatic Discharge (ESD) and other transients.
ESD: TVS, 24 / 40 W
Automotive Transient Voltage Suppressors (TVS)
For outstanding protection against transient over-voltage
Housed in very flat SOD128 or SOD123W packages, these TVS diodes save board space while guaranteeing industry-leading surge protection up to 600 W.
Reverse battery: 40 V, LFPAK88
LFPAK88 MOSFETs
Driving power-density to the next level
Providing a true alternative to D²PAK, Nexperia’s LFPAK88 delivers industry leading power density in truly innovative 8mm x 8mm footprint. Delivering 2x higher continuous current rating, ultimate thermal performance and reliability, and up to 60% space saving efficiency, making LFPAK88 the MOSFET of choice for the most challenging new designs. Available in both automotive AEC-Q101 and industrial grades
WHAT ARE THE LIMITATIONS OF ABS BRAKES?
While ABS brakes are a breakthrough, don’t let them give you a false sense of security. To realize the full advantage of anti-lock brakes, it requires you to avoid negative behaviors like speeding, tailgating and driving while tired. Using safe driving practices will increase your reaction time, a key factor in being able to safely negotiate an emergency situation. Don’t expect ABS brakes to compensate for poor driving; a healthy dose of caution and good judgment ensures that safety features like anti-lock brakes work to their full potential.
Learn more about quality brake parts, find your car part, or find where to buy your auto part today.
The content contained in this article is for entertainment and informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or mechanic. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. Under no circumstances will we be liable for any loss or damage caused by your reliance on any content.
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