ISO7831DWR

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Texas Instruments

HIGHEST ISOLATION RATING, TRIPLE-CHANNEL, 2/1, REINFORCED DIGITAL ISOLATOR

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ISO7831DWR

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Texas Instruments

HIGHEST ISOLATION RATING, TRIPLE-CHANNEL, 2/1, REINFORCED DIGITAL ISOLATOR

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Description Specifications Series Pricing CAD Documents

Description

General part information

ISO7831 Series

The ISO7831x device is a high-performance, 3-channel digital isolator with 8000-VPKisolation 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 ishighfor the ISO7831 device andlowfor the ISO7831F device. SeeDevice Functional Modesfor 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.

Technical Specifications

Parameters and characteristics for this part

Specification	ISO7831DWR

Channel Type	Unidirectional
Common Mode Transient Immunity (Min)	70 kV/µs
Data Rate	100 Mbps
Fall Time (Typ)	1.9 ns
Inputs - Side 1	2
Inputs - Side 2	1
Isolated Power	No
Mounting Type	Surface Mount
Number of Channels	3
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-55 °C
Package Length	0.295 in
Package Name	16-SOIC
Package Width	7.5 mm
Propagation Delay tpHL (Max)	16 ns
Propagation Delay tpLH (Max)	16 ns
Pulse Width Distortion (Max)	4.1 ns
Rise Time (Typ)	1.7 ns
Technology	Capacitive Coupling
Type	General Purpose
Voltage - Isolation	5.7 kV
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	2.25 V

ISO7831 Series

Part	Operating Temperature (Max)	Operating Temperature (Min)	Channel Type	Fall Time (Typ)	Rise Time (Typ)	Package Name	Voltage - Isolation	Isolated Power	Number of Channels	Common Mode Transient Immunity (Min)	Propagation Delay tpLH (Max)	Propagation Delay tpHL (Max)	Pulse Width Distortion (Max)	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Type	Inputs - Side 1	Inputs - Side 2	Data Rate	Package Length	Package Width	Mounting Type	Technology
Texas Instruments ISO7831FDW	125 °C	-55 °C	Unidirectional	1.9 ns	1.7 ns	16-SOIC	5.7 kV	No	3	70 kV/µs	16 ns	16 ns	4.1 ns	5.5 V	2.25 V	General Purpose	2	1	100 Mbps	0.295 in	7.5 mm	Surface Mount	Capacitive Coupling
Texas Instruments ISO7831FDWWR	125 °C	-55 °C	Unidirectional	1.9 ns	1.7 ns	16-SOIC	5.7 kV	No	3	100 kV/µs	16 ns	16 ns	4.1 ns	5.5 V	2.25 V	General Purpose	2	1	100 Mbps	0.551 in	14 mm	Surface Mount	Capacitive Coupling
Texas Instruments ISO7831DWWR	125 °C	-55 °C	Unidirectional	1.9 ns	1.7 ns	16-SOIC	5.7 kV	No	3	100 kV/µs	16 ns	16 ns	4.1 ns	5.5 V	2.25 V	General Purpose	2	1	100 Mbps	0.551 in	14 mm	Surface Mount	Capacitive Coupling
Texas Instruments ISO7831DWW	125 °C	-55 °C	Unidirectional	1.9 ns	1.7 ns	16-SOIC	5.7 kV	No	3	100 kV/µs	16 ns	16 ns	4.1 ns	5.5 V	2.25 V	General Purpose	2	1	100 Mbps	0.551 in	14 mm	Surface Mount	Capacitive Coupling
Texas Instruments ISO7831FDWW	125 °C	-55 °C	Unidirectional	1.9 ns	1.7 ns	16-SOIC	5.7 kV	No	3	100 kV/µs	16 ns	16 ns	4.1 ns	5.5 V	2.25 V	General Purpose	2	1	100 Mbps	0.551 in	14 mm	Surface Mount	Capacitive Coupling
Texas Instruments ISO7831FDWR	125 °C	-55 °C	Unidirectional	1.9 ns	1.7 ns	16-SOIC	5.7 kV	No	3	70 kV/µs	16 ns	16 ns	4.1 ns	5.5 V	2.25 V	General Purpose	2	1	100 Mbps	0.295 in	7.5 mm	Surface Mount	Capacitive Coupling
Texas Instruments ISO7831DW	125 °C	-55 °C	Unidirectional	1.9 ns	1.7 ns	16-SOIC	5.7 kV	No	3	70 kV/µs	16 ns	16 ns	4.1 ns	5.5 V	2.25 V	General Purpose	2	1	100 Mbps	0.295 in	7.5 mm	Surface Mount	Capacitive Coupling
Texas Instruments ISO7831DWR	125 °C	-55 °C	Unidirectional	1.9 ns	1.7 ns	16-SOIC	5.7 kV	No	3	70 kV/µs	16 ns	16 ns	4.1 ns	5.5 V	2.25 V	General Purpose	2	1	100 Mbps	0.295 in	7.5 mm	Surface Mount	Capacitive Coupling