ISO7231A - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ISO7231A
Manufacturer

TI
ChipWorker Part#

CW392928835
RoHS

Lead free / RoHS Compliant
Description

Triple Channel, 2/1, 1Mbps, Digital Isolator 16-SOIC -40℃ to 125℃
Documentation

Datasheet

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ISO7231A Specifications

Attribute	Attribute Value

Part Number	ISO7231A
Manufacturer	TI
ChipWorker Part#	CW392928835
Documentation	Datasheet
	expand all
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

See the Product Notification section. The ISO7230A and ISO7231A are triple-channel digital isolators each with multiple channel configurations and output-enable functions. These devices have logic input and output buffers separated by TIs silicon dioxide (SiO2) isolation barrier. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.
The ISO7230 triple-channel device has all three channels in the same direction while the ISO7231 has two channels in one direction and one channel in opposition. These devices have an active-high output enable that when driven to a low level, places the output in a high-impedance state.
The ISO7230A and ISO7231A have TTL input thresholds and a noise-filter at the input that prevents transient pulses of up to 2ns in duration from being passed to the output of the device.
In each device a periodic update pulse is sent across the isolation barrier to ensure the proper dc level of the output. If this dc-refresh pulse is not received, the input is assumed to be unpowered or not being actively driven, and the failsafe circuit drives the output to a logic high state. (Contact TI for a logic low failsafe option).
These devices require two supply voltages of 3.3V, 5V, or any combination. All inputs are 5V tolerant when supplied from a 3.3V supply and all outputs are 4mA CMOS. These devices are characterized for operation over the ambient temperature range of 40°C to 125°C.
1Mbps Signaling Rate
Low Channel-to-Channel Output Skew; 2ns Maximum (5V-Operation)
Low Pulse-Width Distortion (PWD); 10ns Maximum (5V-Operation)
Typical 25-Year Life at Rated Working Voltage
4000Vpeak Isolation, 560Vpeak VIORM
UL 1577, IEC 60747-5-2 (VDE 0884, Rev 2), IE 61010-1 and CSA Approved,
IEC 60950-1
4kV ESD Protection
Operate With 3.3V or 5V Supplies
High Electromagnetic Immunity (See Application note SLLA181)
40°C to 125°C Operating Range
APPLICATIONS
Industrial Fieldbus
Computer Peripheral Interface
Servo Control Interface
Data Acquisition

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