ISO7841x High-Performance, 8000V_PK Reinforced Quad-Channel Digital Isolator

1 Features

Signaling Rate: Up to 100Mbps
Wide Supply Range: 2.25V to 5.5V
2.25V to 5.5V Level Translation
Wide Temperature Range: –55°C to 125°C
Low-Power Consumption, Typical 1.7mA per Channel at 1Mbps
Low Propagation Delay: 11ns Typical
(5V Supplies)
Industry leading CMTI (Min): ±100kV/μs
Robust Electromagnetic Compatibility (EMC)
System-Level ESD, EFT, and Surge Immunity
Low Emissions
Isolation Barrier Life: >40 Years
Wide Body SOIC-16 Package and Extra-Wide Body SOIC-16 Package Options
Safety and Regulatory Approvals:
- 8000V_PK Reinforced Isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 5.7kV_RMS Isolation for 1 Minute per UL 1577
- CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 End Equipment Standards
- CQC Certification per GB4943.1
- TUV Certification per EN 61010-1 and EN 62368-1

2 Applications

3 Description

The ISO7841x device is a high-performance, quad-channel digital isolator with a 8000V_PK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, CQC, and TUV. The isolator provides 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 silicon-dioxide (SiO₂) insulation barrier.

This device comes with enable pins that can be used to put the respective outputs in high impedance for multi-controller driving applications and to reduce power consumption. The ISO7841 device has three forward and one reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7841 device and low for the ISO7841F device. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, this device helps prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO7841 device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance.

The ISO7841 device is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.

Package Information

PART NUMBER	PACKAGE⁽¹⁾	PACKAGE SIZE⁽²⁾	BODY SIZE (NOM)
ISO7841 ISO7841F	DW (16)	10.30mm × 10.30mm	10.30mm × 7.50mm
ISO7841 ISO7841F	DWW (16)	10.30mm × 17.25mm	10.30mm × 14.0mm

(1) For all available packages, see the orderable addendum at the end of the data sheet.

(2) The package size (length × width) is a nominal value and includes pins, where applicable.

V_CCI and GNDI are supply and ground connections respectively for the input channels.

V_CCO and GNDO are supply and ground connections respectively for the output channels.

Simplified Schematic