Zenode.ai Logo
ISO7631FCDW

ISO7631FCDW

Active
Texas Instruments

TRIPLE-CHANNEL, 2/1, 25-MBPS, DEFAULT OUTPUT LOW DIGITAL ISOLATOR

Find alt
ISO7631FCDW

ISO7631FCDW

Active
Texas Instruments

TRIPLE-CHANNEL, 2/1, 25-MBPS, DEFAULT OUTPUT LOW DIGITAL ISOLATOR

Find alt

Description

General part information

ISO7631 Series

The ISO7631F and ISO7641F devices provide galvanic isolation up to 4242 VPKper VDE. The ISO7631F device has three channels, two of which operate in the forward direction and one which operates in the reverse direction. The ISO7641F device has 4 channels, three of which operate in the forward direction and one of which operates in the reverse direction. Suffix F indicates that output defaults to low-state in fail-safe conditions (see ). M-Grade devices are high-speed isolators capable of up to150-Mbps data rates with fast propagation delays, whereas C-Grade devices are capable of up to 25-Mbps data rates with low power consumption and integrated filters for noise-prone applications. C-Grade devices are recommended for lower-speed applications where input noise pulses of less than 6 ns duration must be suppressed, or when low-power consumption is critical.

Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The devices have TTL input thresholds and can operate from 2.7-V (M-Grade), 3.3-V and 5-V supplies. All inputs are 5-V tolerant when supplied from 3.3-V or 2.7-V supplies.

The ISO7631F and ISO7641F devices provide galvanic isolation up to 4242 VPKper VDE. The ISO7631F device has three channels, two of which operate in the forward direction and one which operates in the reverse direction. The ISO7641F device has 4 channels, three of which operate in the forward direction and one of which operates in the reverse direction. Suffix F indicates that output defaults to low-state in fail-safe conditions (see ). M-Grade devices are high-speed isolators capable of up to150-Mbps data rates with fast propagation delays, whereas C-Grade devices are capable of up to 25-Mbps data rates with low power consumption and integrated filters for noise-prone applications. C-Grade devices are recommended for lower-speed applications where input noise pulses of less than 6 ns duration must be suppressed, or when low-power consumption is critical.

Technical Specifications

Parameters and characteristics for this part

SpecificationISO7631FCDW
Channel TypeUnidirectional
Common Mode Transient Immunity (Min)25 kV/µs
Data Rate25 MBd
Fall Time (Typ)2.9 ns
Inputs - Side 12
Inputs - Side 21
Isolated PowerNo
Mounting TypeSurface Mount
Number of Channels3
Operating Temperature (Max)125 °C
Operating Temperature (Min)-40 °C
Package Length0.295 in
Package Name16-SOIC
Package Width7.5 mm
Propagation Delay tpHL (Max)28 ns
Propagation Delay tpLH (Max)28 ns
Pulse Width Distortion (Max)3 ns
Rise Time (Typ)2.8 ns
TechnologyCapacitive Coupling
TypeGeneral Purpose
Voltage - Isolation2500 Vrms
Voltage - Supply (Maximum)5.5 V
Voltage - Supply (Minimum)3 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Sign in to see pricing

Create a free account to access distributor pricing data.

CAD

3D models and CAD resources for this part