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See Technical Specifications

ISO7831FDWW

Highest isolation rating, triple-channel, 2/1, reinforced digital isolator

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

ISO7831FDWW
Datasheet:

ISO7831FDWW Datasheet (PDF)
Technology:

Capacitive Coupling
Type:

General Purpose
Isolated Power:

No
Number of Channels:

3
EDA/CAD Models:

Request Free CAD Models for ISO7831FDWW

Email: [email protected]

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Tel: +852 95804164

ISO7831FDWW General Description

The ISO7831x device is a high-performance, 3-channel digital isolator with 8000-V_PK 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.

Key Features

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 V_PK Reinforced Isolation per DIN V VDE
  V 0884-10 (VDE V 0884-10):2006-12
- 5.7 kV_RMS 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

Specifications

Category	IsolatorsDigital Isolators	Series	-
Technology	Capacitive Coupling	Type	General Purpose
Isolated Power	No	Number of Channels	3
Inputs - Side 1/Side 2	2/1	Channel Type	Unidirectional
Voltage - Isolation	5700Vrms	Common Mode Transient Immunity (Min)	100kV/µs
Data Rate	100Mbps	Propagation Delay tpLH / tpHL (Max)	16ns, 16ns
Pulse Width Distortion (Max)	4.1ns	Rise / Fall Time (Typ)	1.7ns, 1.9ns
Voltage - Supply	2.25V ~ 5.5V	Operating Temperature	-55°C ~ 125°C
Mounting Type	Surface Mount	Base Product Number	ISO7831