ISO7740

Part: ISO774x — Texas Instruments

Type: High-Speed, Robust-EMC Reinforced and Basic Quad-Channel Digital Isolators

Description: Quad-channel digital isolators with up to 5000VRMS isolation rating, 100Mbps data rate, wide 2.25V to 5.5V supply range, and robust electromagnetic compatibility.

Operating Conditions:

• Supply voltage: 2.25–5.5 V
• Operating temperature: -55 to 125 °C
• Data Rate: 0–100 Mbps

Absolute Maximum Ratings:

• Max supply voltage: 6 V
• Max continuous current: 15 mA (output)
• Max junction/storage temperature: 150 °C

Key Specs:

• Data rate: 100 Mbps
• Isolation rating (DW package): 5000 VRMS
• Isolation rating (DBQ package): 3000 VRMS
• Common-mode transient immunity (CMTI): ±100 kV/μs typical
• Low power consumption: 1.5 mA per channel at 1 Mbps (typical)
• Low propagation delay: 10.7 ns typical (5V Supplies)
• ESD protection (contact discharge across barrier): ±8 kV IEC 61000-4-2
• Max surge isolation voltage (ISO774x, DW): 12800 VPK

Features:

• 2.25V to 5.5V level translation
• Default output high (ISO774x) and low (ISO774xF) options
• System-level ESD, EFT, and surge immunity
• Low emissions
• Automotive version available: ISO774x-Q1
• Safety-related certifications: DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, GB 4943.1

Applications:

• Industrial automation
• Motor control
• Power supplies
• Solar inverters
• Medical equipment

Package:

• SOIC (DW-16)
• QSOP (DBQ-16)

• 100Mbps data rate
• Robust isolation barrier:
• ->30-year projected lifetime at 1500VRMS working voltage
• -Up to 5000VRMS isolation rating
• -Up to 12.8kV surge capability
• -±100kV/μs typical CMTI
• Wide supply range: 2.25V to 5.5V
• 2.25V to 5.5V level translation
• Default output high (ISO774x ) and low (ISO774xF) options
• Wide temperature range: -55°C to 125°C
• Low power consumption, typical 1.5mA per channel at 1Mbps
• Low propagation delay: 10.7ns typical (5V Supplies)
• Robust electromagnetic compatibility (EMC)
• -System-level ESD, EFT, and surge immunity
• -±8kV IEC 61000-4-2 contact discharge protection across isolation barrier
• -Low emissions
• Wide-SOIC (DW-16) and QSOP (DBQ-16) package options
• ·
• Automotive version available: ISO774x-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

• Industrial automation
• Motor control
• Power supplies
• Solar inverters
• Medical equipment

Figure 4-1. ISO7740 DW and DBQ Packages 16-Pin SOIC-WB and QSOP Top View

Figure 4-2. ISO7741 DW and DBQ Packages 16-Pin SOIC-WB and QSOP Top View

Figure 4-3. ISO7742 DW and DBQ Packages 16-Pin SOIC-WB and QSOP Top View

VCC1 = VCC2 = 5 V ±10% (over recommended operating conditions unless otherwise noted)

See (1)

over operating free-air temperature range (unless otherwise noted)

The ISO774x devices are high-performance, quad-channel digital isolators. These devices come with enable pins on each side which can be used to put the respective outputs in high impedance for multi-controller driving applications and reduce power consumption. The ISO774x devices use single-ended CMOS-logic switching technology. The voltage range is from 2.25 V to 5.5 V for both supplies, VCC1 and VCC2. When designing with digital isolators, keep in mind that because of the single-ended design structure, digital isolators do not conform to any specific interface standard and are only intended for isolating single-ended CMOS or TTL digital signal lines. The isolator is typically placed between the data controller (that is, μC or UART), and a data converter or a line transceiver, regardless of the interface type or standard.

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