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ISOW7721DFMR

Low emissions, dual-channel, 1/1, reinforced digital isolator with integrated power

Manufacturer:

Texas Instruments
Mfr.Part #:

ISOW7721DFMR
Datasheet:

ISOW7721DFMR Datasheet (PDF)
Series:

ISOW7721
Mounting Style:

SMD/SMT
Number of Channels:

2 Channel
Data Rate:

100 Mb/s

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

ISOW7721DFMR General Description

The ISOW7721 device is a galvanically-isolated dual-channel digital isolator with an integrated high-efficiency power converter with low emissions. The integrated DC-DC converter provides up to 550 mW of isolated power, eliminating the need for a separate isolated power supply in space-constrained isolation designs. If additional power is needed, the ISOW7721 supports multi-device chaining, increasing the integrated power output to > 1 W using two devices in a system.

Key Features

100 Mbps data rate
Integrated DC-DC converter with low-emissions, low-noise
- Emissions optimized to meet CISPR 32 and EN 55032 Class B with >5 dB margin on 2 layer board
- Low frequency power converter at 25 MHz enabling low noise performance
- Low output ripple: 24 mV
High efficiency output power
- Efficiency at max load: 46%
- Up to 0.55-W output power
- V_ISOOUT accuracy of ± 5%
- 5 V to 5 V: Max available load current = 110 mA
- 5 V to 3.3 V: Max available load current = 140 mA
- 3.3 V to 3.3 V: Max available load current = 60 mA
Support for multi-ISOW7721 chain to increase system power output to > 1-W and > 200 mA
Independent power supply for channel isolator & power converter
- Logic supply (V_IO): 1.71-V to 5.5-V
- Power converter supply (V_DD): 3-V to 5.5-V
Robust electromagnetic compatibility (EMC)
- System-level ESD, EFT, and surge immunity
- ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
Reinforced and Basic isolation options
High CMTI: 100-kV/µs (typical)
Safety Related Certifications (Planned):
- VDE reinforced and basic insulation per DIN VDE V 0884-11:2017-01
- UL 1577 component recognition program
- IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1-2011 certifications
Extended temperature range: –40°C to +125°C
20-pin wide body SOIC package

Specifications

Product Category	Digital Isolators	Series	ISOW7721
Mounting Style	SMD/SMT	Number of Channels	2 Channel
Data Rate	100 Mb/s	Isolation Voltage	5000 Vrms
Isolation Type	Galvanic Isolation	Supply Voltage - Max	3.63 V
Supply Voltage - Min	2.97 V	Propagation Delay Time	10.7 ns
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 125 C
Development Kit	ISOW7741DFMEVM	Forward Channels	1 Channel
Maximum Fall Time	3.5 ns	Maximum Rise Time	3.6 ns
Moisture Sensitive	Yes	Pd - Power Dissipation	1.48 W
Product Type	Digital Isolators	Pulse Width Distortion	5.1 ns
Reverse Channels	1 Channel	Shutdown	Shutdown
Factory Pack Quantity	850	Subcategory	Interface ICs