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Tag Archives: automotive

Electronica: ASIL D vehicle battery safety monitor and pyrotechnic trigger

NXP MC33777 battery box monitor IC

NXP is aiming at ASIL D safety approval with a vehicle battery junction box controller IC, intended to fire the pyrotechnic disconnect switch during a serious fault, as well as report faults over a serial bus. MC33777A, as it will be known, redundantly measures currents, voltages and temperatures, then deduces situations – a short circuit or a crash, for example ...

Small-signal mosfets in 1.1x1mm and 1.4×1.2mm DFN packaging

Nexperia DFN1110D-3 DFN1412-6

Nexperia has put more single and dual small-signal mosfets into DFN1110D-3 (SOT8015) and DFN1412-6 (SOT1268) packages, with side-wettable flanks for automated optical inspection. “The 1.1 x 1mm DFN1110D-3 package has seen increasingly wide adoption, and is quickly becoming the de-facto industry standard package for small-signal mosfets and bipolar transistors intended for use in automotive applications,” according to the company. “Superior ...

Metal lead-frame MLCCs for automotive power trains

TDK metal frame automotive MLCC 3chip

TDK has introduced a series of high-value metal-framed multi-chip ceramic capacitors for automotive electric power trains, on-board chargers and wireless power transfer systems, where the capacitors must handle high currents or voltages, or have high capacity. “To meet these needs, TDK developed the CA series, the largest MLCCs in the industry [6 x 5.6 x 6.4mm] with a metal frame ...

When vehicle radar becomes part of the MOT

automotive-radest-rohde-schwarz 854

Rohde & Schwarz is looking forward to times when nations mandate radar testing as part of annual vehicle inspections. It has created RadEst, a radar target simulator intended to function in the tough world of vehicle workshops. As well as simulating targets, the unit can measure radar parameters such as EIRP (equivalent isotropic radiated power) and occupied bandwidth. “With an ...

Haptic actuators come with Immersion Corp license

Vishay haptic transducers

Vishay has added five solenoid-based haptic actuators to its IHPT range, which come with operation licenses from Immersion Corporation. There are four sizes, from 29 x 21mm to 44 x 37mm, that can provide forces up to 120N. Not immediately obvious from the photo, each transducer us in two parts: the top left part is a separate laminated metal bar ...

AEC-Q200 transformer isolates battery management signals

bourns SM91872AL automotive transformer

Bourns has created an AEC-Q200 compliant 1:1 signal isolation transformer for automotive battery management systems. SM91872AL is surface-mount and will fit into a 17.4 x 10.6 x 8.1 envelope – including its visible legs. Inductance is 150 to 450µH (100kHz 100mV) across its -40 to +125°C operation range, and leakage inductance is 1µH max. Both sides have a maximum resistance ...

Automotive CXPI interface has GPIO, ADC and PWMs

Toshiba VQFN package

Toshiba is developing an interface IC for the automotive CXPI (clock extension peripheral interface) bus whose hardware logic “can control data communication by CXPI protocol and GPIO, eliminating the need for dedicated software development”, according to the company. Not a lot more has been revealed about the function of the IC, called TB9033FTG, except that it has 16 GPIO pins, ...

Protection diode for OPEN Alliance 100Base-T1 and 1000Base-T1

Vishay Ethernet ESD diodes

VETH100A1DD1 is a bidirectional ESD protection diode for automotive Ethernet, compliant with OPEN Alliance 100Base-T1 and 1000Base-T1. Made by Vishay, it comes in a wettable flank DFN1006-2B package  measuring 1 x 0.6 x 0.45mm. Working range is ±24V, and clamping is typically at 31V for 1A, “a result of its snap-back technology with a trigger voltage >100V”, said the company. ...

SMD resistors to AEC-Q200

Bourns-CRT-A-automotive-smd-resistors

Bourns has created a surface-mount thin-film resistor series with AEC-Q200 compliance for automotive use. Model CRT-A resistors are available with tolerance of ±0.1, ±0.25, ±0.5 or ±1%, and temperature coefficients of ±50, ±25, ±15 or ±10ppm/°C. These compact, yet high power-rated resistors offering accurate resistance levels are increasingly required in space-constrained applications such as mobile phones, SD cards, DDR memory ...

Automotive voltage regulator with reset and watchdog

Infineon TLS820F3ELV50 linear regulator

Infineon has introduced six automotive linear regulators, protected against 40 or 45V, and supplying 3.3 or 5V at up 500mA, some with enable, watchdog or reset circuits (see the table below). Picking the TLS820F3ELV50 as an example, it has an input range of 3 to 42V (45V abs max) and outputs 5V ±2% at up to 200mA. “These regulators are ...