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ISOW7842DWE

Name: ISOW7842DWE
Rating: 4.7 (12 reviews)

DGTL ISOLTR 5KV 4CH GP 16-SOIC

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規格

Part Status	Active
Base Product Number	ISOW7842
Technology	Capacitive Coupling
Type	General Purpose
Isolated Power	Yes
Number of Channels	4
Inputs - Side 1/Side 2	2/2
Channel Type	Unidirectional
Voltage - Isolation	5000Vrms
Common Mode Transient Immunity (Min)	100kV/µs
Data Rate	100Mbps
Propagation Delay tpLH / tpHL (Max)	17.6ns, 17.6ns
Pulse Width Distortion (Max)	4.7ns
Rise / Fall Time (Typ)	2ns, 2ns
Voltage - Supply	3V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
Package	16-SOIC (0.295", 7.50mm Width)
Supplier Device Package	16-SOIC
Packaging	Tube

概述

Description

ISOW7842DWE is a Texas Instruments isolated dual-channel digital isolator in an 8-pin DWE package. It provides galvanic isolation between the logic (input) side and the driven (output) side, enabling safe interfacing across voltage differences in mixed-voltage systems.
Key points:
- Two independent data channels across a barrier
- Separate input and output supply rails
- Reinforced isolation suitable for industrial/automotive environments
- Fast data transfer with low propagation delay and good noise immunity
- Features like undervoltage lockout and fault protection
- Commonly used for isolated microcontroller I/O, sensor/actuator interfaces, motor drive control, and power electronics
Note: consult the datasheet for exact electrical specs, isolation rating, temperature range, and pinout.

Features

ISOW7842DWE features (concise):
- Dual-channel isolated RS-485/RS-422 transceiver
- Galvanic isolation between logic side and bus side
- Two independent channels with separate DE/RE control
- Supports RS-485 and RS-422 signaling
- Failsafe receivers (known output on open/short/idle lines)
- Bus-side and logic-side supply operation (typical 5V on bus, 3.3V logic)
- Robust protection: ESD on I/O pins and bus fault/short-circuit protection
- Suitable for high-speed data transfer (tens of Mbps range)
- Industrial temperature range and RoHS-compliant package (DWE)
Note: For exact electrical specs (isolation voltage, data rate, supply ranges, current consumption), please consult the official datasheet.

Package

ISOW7842DWE uses an 8-pin SOIC package (DWE variant).

Pinout

- Pin count: 16 pins (16-pin package, e.g., SOIC-16/TSSOP-16)
- Function: Dual-channel galvanically isolated digital isolator for SPI-style communication (isoSPI). Provides isolation between two power domains (logic side and isolated side) with two independent data channels and separate supplies.

Manufacturer

Manufacturer: Renesas Electronics Corporation (formerly Intersil).
What kind of company: A Japanese multinational semiconductor company that designs and manufactures integrated circuits, microcontrollers, analog and power devices, and related semiconductor products.

Application

Common applications include:
- Industrial automation and process control (isolated sensors/actuators)
- Motor drives and power electronics
- Data acquisition and instrumentation
- Medical equipment requiring patient isolation
- Automotive electronics for isolated control and sensing

Equivalent

Equivalents (dual-channel isolated RS-485/RS-422 transceivers) include:
- Texas Instruments ISO7842 family (ISO7842 in 8-pin package)
- Analog Devices ADM2482/ADM2483 family
- Maxim Integrated MAX14850/MAX14852 family
Note: verify isolation voltage, Vcc1/Vcc2, data rate, and package to ensure true cross‑reference for your design.