ISO7831DWW中文资料德州仪器数据手册PDF规格书

1 Features

1• Signaling Rate: Up to 100 Mbps

• Wide Supply Range: 2.25 V to 5.5 V

• 2.25 V to 5.5 V Level Translation

• Wide Temperature Range: –55°C to 125°C

• Low Power Consumption, Typical 1.7 mA per

Channel at 1 Mbps

• Low Propagation Delay: 11 ns Typical

(5-V Supplies)

• Industry leading CMTI (min): ±100 kV/μs

• Robust Electromagnetic Compatibility (EMC)

• System-Level ESD, EFT, and Surge Immunity

• Low Emissions

• Isolation Barrier Life: > 40 Years

• SOIC-16 Wide Body (DW) and Extra-Wide Body

(DWW) Package Options

• Safety-Related Certifications:

– 8000 VPK Reinforced Isolation per DIN V VDE

V 0884-10 (VDE V 0884-10):2006-12

– 5.7 kVRMS Isolation for 1 Minute per UL 1577

– CSA Component Acceptance Notice 5A, IEC

60950-1 and IEC 60601-1 End Equipment

Standards

– CQC Certification per GB4943.1-2011

– TUV Certification per EN 61010-1 and EN

60950-1

– All DW Package Certifications Complete;

DWW Package Certifications Complete per

UL, VDE, TUV and Planned for CSA and CQC

2 Applications

• Industrial Automation

• Motor Control

• Power Supplies

• Solar Inverters

• Medical Equipment

• Hybrid Electric Vehicles

3 Description

The ISO7831x device is a high-performance, 3-

channel digital isolator with 8000-VPK isolation

voltage. This device has reinforced isolation

certifications according to VDE, CSA, TUV and CQC.

The isolator provides high electromagnetic immunity

and low emissions at low power consumption, while

isolating CMOS or LVCMOS digital I/Os.

Each isolation channel has a logic input and output

buffer separated by silicon dioxide (SiO2) insulation

barrier. This device comes with enable pins which

can be used to put the respective outputs in high

impedance for multi-master driving applications and

to reduce power consumption. The ISO7831x device

has two forward and one reverse-direction channels.

If the input power or signal is lost, the default output

is high for the ISO7831 device and low for the

ISO7831F device. See Device Functional Modes for

further details.

Used in conjunction with isolated power supplies, this

device helps prevent noise currents on a data bus or

other circuits from entering the local ground and

interfering with or damaging sensitive circuitry.

Through innovative chip design and layout

techniques, electromagnetic compatibility of

ISO7831x has been significantly enhanced to ease

system-level ESD, EFT, surge, and emissions

compliance. ISO7831x is available in a 16-pin SOIC

wide-body (DW) and extra-wide body (DWW)

packages.