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ISO7721FQDWQ1

Automotive, robust EMC, dual-channel, 1/1, reinforced digital isolator

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

ISO7721FQDWQ1
Datasheet:

ISO7721FQDWQ1 Datasheet (PDF)
Rating:

Automotive
Integrated isolated power:

No
Isolation rating:

Basic, Reinforced
Number of channels:

2

Email: [email protected]

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Tel: +852 95804164

ISO7721FQDWQ1 General Description

The ISO772x-Q1 devices are high-performance, dual-channel digital isolators with 5000 V_RMS (DW package) 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 ISO772x-Q1 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 (SiO₂) insulation barrier. The ISO7720-Q1 device has both channels in the same direction while the ISO7721-Q1 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 CAN and LIN, from damaging sensitive circuitry. Through innovative chip design and layout techniques, the electromagnetic compatibility of the ISO772x-Q1 devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO772x-Q1 family of devices is available in 16-pin SOIC wide-body (DW) and 8-pin SOIC narrow-body (D) packages.

Key Features

Qualified for automotive applications
AEC-Q100 qualified With the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature range
- Device HBM ESD classification level 3A
- Device CDM ESD classification level C6
Functional Safety-Capable
- Documentation available to aid functional safety system design: ISO7720-Q1, ISO7721-Q1
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
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) and Narrow-SOIC (D-8) package options
Section 6.7
- DIN VDE V 0884-11:2017-01
- UL 1577 component recognition program
- IEC 60950-1, IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1-2011 certifications

Specifications

Rating	Automotive	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, 8000	Withstand isolation voltage (VISO) (Vrms)	3000, 5000
CMTI (min) (V/µs)	85000	Operating temperature range (°C)	-40 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
Clearance (min) (mm)	4, 8	TI functional safety category	Functional Safety-Capable