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See Technical Specifications

ISO7721BDWR

Robust EMC, dual-channel, 1/1, reinforced digital isolator

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

ISO7721BDWR
Datasheet:

ISO7721BDWR Datasheet (PDF)
Rating:

Catalog
Integrated isolated power:

No
Isolation rating:

Basic, Reinforced
Number of channels:

2

Email: [email protected]

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Tel: +852 95804164

ISO7721BDWR General Description

The ISO772x devices are high-performance, dual-channel digital isolators with 5000 V RMS (DW and DWV packages) and 3000 V RMS (D package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC. The ISO7721B device is designed for applications that require basic insulation ratings only.

The ISO772x devices provide 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 a double capacitive silicon dioxide (SiO 2) insulation barrier. The ISO7720 device has both channels in the same direction while the ISO7721 device has both channels in the opposite direction. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, these devices help prevent noise currents on data buses, such as RS-485, RS-232, and CAN , from damaging sensitive circuitry. Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO772x devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO772x family of devices is available in 16-pin SOIC wide-body (DW) , 8-pin SOIC wide-body (DWV), and 8-pin SOIC narrow-body (D) packages.

Key Features

100 Mbps data rate
Robust isolation barrier:
- >100-Year projected lifetime at 1.5 kV RMS working voltage
- Up to 5000 V RMS Isolation Rating
- Up to 12.8 kV surge capability
- ±100 kV/µs Typical CMTI
Wide supply range: 2.25 V to 5.5 V
2.25-V to 5.5-V level translation
Default output High (ISO772x) and Low (ISO772xF) Options
Wide temperature range: –55°C to +125°C
Low power consumption, typical 1.7 mA per channel at 1 Mbps
Low propagation delay: 11 ns typical
Robust electromagnetic compatibility (EMC)
- System-Level ESD, EFT, and surge immunity
- ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
- Low emissions
Wide-SOIC (DW-16 , DWV-8) and Narrow-SOIC (D-8) package options
Automotive Version Available: ISO772x-Q1
Safety-Related Certifications
- DIN EN IEC 60747-17 (VDE 0884-17)
- UL 1577 component recognition program
- IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications

Specifications

Rating	Catalog	Integrated isolated power	No
Isolation rating	Basic, Reinforced	Number of channels	2
Forward/reverse channels	1 forward / 1 reverse	Default output	High, Low
Data rate (max) (MBps)	100	Surge isolation voltage (VIOSM) (VPK)	8000, 12800
Transient isolation voltage (VIOTM) (VPK)	4242, 7071, 8000	Withstand isolation voltage (VISO) (Vrms)	3000, 5000
CMTI (min) (V/µs)	85000	Operating temperature range (°C)	-55 to 125
Supply voltage (max) (V)	5.5	Supply voltage (min) (V)	2.25
Propagation delay time (typ) (µs)	0.0107	Current consumption per channel (DC) (typ) (mA)	1
Current consumption per channel (1 Mbps) (typ) (mA)	1.6	Creepage (min) (mm)	4, 8, 8.5
Clearance (min) (mm)	4, 8, 8.5	feature-number-of-channels-per-chip	2
feature-maximum-data-rate	100Mbps	feature-maximum-rise-time-ns	3.9
feature-maximum-fall-time-ns	3.9	feature-minimum-pulse-width-ns
feature-maximum-pulse-width-distortion-ns	4.9	feature-minimum-operating-supply-voltage-v	2.25
feature-maximum-propagation-delay-skew-ns		feature-output-type	CMOS
feature-maximum-operating-supply-voltage-v	5.5	feature-maximum-propagation-delay-time-tphl-ns	16
feature-maximum-propagation-delay-time-tplh-ns	16	feature-maximum-quiescent-supply-current-ma
feature-maximum-power-dissipation-mw	100	feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	16
feature-cecc-qualified		feature-esd-protection	Yes
feature-military	No	feature-aec-qualified	No
feature-aec-qualified-number		feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No