explain

Iso774x-q1 device is a high-performance four channel digital isolator, which can provide 5000vrms (DW package) and 3000vrms (DBQ package) isolation ratings in accordance with UL 1577. This series of devices have enhanced isolation ratings that meet VDE, CSA, TUV, and CQC standards.

When isolating CMOS or lvcmos digital i/o, iso774x-q1 devices can provide high electromagnetic immunity, low radiation, and low power consumption. The logic input and output buffers of each isolation channel are isolated by silicon dioxide (SiO2) insulated gate phase. The device is equipped with an enable pin, which can be used to place the corresponding output in multi master drive applications in a high impedance state, and can also be used to reduce power consumption. Iso7740-q1 device has four channels in the same direction, iso7741-q1 device has three forward channels and one reverse channel, and iso7742-q1 device has two forward channels and two reverse channels. If the input power or signal is lost, the device without suffix f outputs high level by default, and the device with suffix f outputs low level by default.

When used in combination with an isolated power supply, the device helps prevent the noise current in the data bus or other circuits from entering the local ground terminal, thereby interfering with or damaging the sensitive circuit. With innovative chip design and layout technology, the electromagnetic compatibility of iso774x-q1 devices has been significantly enhanced, which can easily meet the compliance of system level ESD, EFT, surge and radiation. Iso774x-q1 series devices are packaged in 16 pin SOIC and qsop.

characteristic

• applications that meet automotive applications

• it has the following characteristics in accordance with aec-q100 standard:

– device temperature class 1: ambient operating temperature range – 40 ° C to 125 ° C

• signal transmission rate: up to 100Mbps

• wide power supply voltage range: 2.25V to 5.5V

• 2.25V to 5.5V level conversion

• default output high and low level options

• low power consumption, typical current value is 1.5ma/ channel (at 1Mbps)

• low propagation delay: typical value is 10.7ns (powered by 5V power supply)

• high CMTI: ± 100kV/ μ S (typical)

• excellent electromagnetic compatibility (EMC)

– system level ESD, EFT and surge immunity

– low radiation

• barrier life: > 40 years

• wide body SOIC (dw-16) and qsop (dbq-16) packaging options

• safety related certification:

–

DIN V VDE V 0884-11:2017-01

–

UL 1577 component certification program

–

CSA component acceptance notice 5a, IEC 60950-1 and IEC

60601-1 terminal equipment standard

– CQC certification in accordance with gb4943.1-2011

– TUV certification according to en 60950-1 and en 61010-1

–

Except for CQC certification of dbq-16 packaged devices, all

All certificates have been completed

application

• hybrid electric vehicle

• motor control

• power supply

• photovoltaic inverter

• medical equipment