ISO7420FCC Datasheet, PDF (1/21 Pages) Texas Instruments – Low-Power Dual Channel Digital Isolator

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ISO7420FCC
SLLSED3A – JUNE 2013 – REVISED JULY 2013
Low-Power Dual Channel Digital Isolator
Check for Samples: ISO7420FCC
FEATURES
1
•2 Signaling Rate: 50 Mbps (5V Supplies)
• Output is Low in Default Mode
• Integrated Noise Filter on the Input pins
• Low Power Consumption: Typical I_CC per
Channel
– 1.8 mA at 1 Mbps, 3.9 mA at 25 Mbps (5V
Supplies)
– 1.4 mA at 1 Mbps, 2.6 mA at 25 Mbps (3.3V
Supplies)
• Low Propagation Delay: 20 ns Typical (5V
Supplies)
• Channel-to-Channel Output Skew: 2ns
Maximum
• 3.3 V / 5 V Level Translation
• Wide T_A Range Specified: –40°C to 125°C
• 60 KV/μs Transient Immunity, Typical (5V
Supplies)
• Low Emissions
• Isolation Barrier Life: > 25 Years
• Operates from 2.7V to 5.5V Supply Levels
• Narrow Body SOIC-8 Package
APPLICATIONS
• Opto-Coupler Replacement in:
– Industrial FieldBus
– ProfiBus
– ModBus
– DeviceNet™ Data Buses
– Servo Control Interface
– Motor Control
– Power Supplies
– Battery Packs
SAFETY AND REGULATORY
APPROVALS
• 3 KV_RMS / 4242 V_PK Isolation per DIN EN 60747-
5-2 (VDE 0884 Part 2)
• 2.5 KV_RMS Isolation for 1 minute per UL 1577
• CSA Component Acceptance Notice #5A
• IEC 60950-1 and IEC 61010-1 End Equipment
Standards
• All Agencies Approvals Pending
DESCRIPTION
ISO7420FCC provides galvanic isolation up to 2500
V_RMS for 1 minute per UL and 4242 V_PK per VDE.
This device has two isolated channels. Each channel
has a logic input and output buffer separated by a
silicon dioxide (SiO₂) insulation barrier. Used in
conjunction with isolated power supplies,this device
prevents noise currents on a data bus or other circuit
from entering the local ground and interfering with or
damaging sensitive circuitry. The suffix F indicates
low-output option in fail-safe conditions (see Table 1).
This device has integrated noise filter for harsh
environments where short noise pulses may be
present at the device input pins.
These devices have TTL input thresholds and
operate from 2.7V to 5.5V supplies. All inputs are 5V
tolerant when supplied from a 2.7V or 3.3V supply.
1
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
DeviceNet is a trademark of Texas Instruments.
2
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information current as of publication date.
Products conform to specifications per the terms of Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated