ISO774X-Q1

Part: ISO7740DBQR — Texas Instruments (ISO774x family)

Type: Quad-Channel Digital Isolator (4/0 channel direction, QSOP-16 package)

Description: 100 Mbps, 2.25–5.5 V quad-channel capacitive digital isolator with default-high output, 3000 VRMS (DBQ package) isolation per UL 1577, and ±100 kV/μs typical CMTI.

Operating Conditions:

• Supply voltage (VCC1, VCC2): 2.25–5.5 V
• Operating temperature: -55 to 125 °C (ambient)
• Data rate: up to 100 Mbps per features list; the recommended operating table lists 50 Mbps
• Output drive: IOH of -4 mA at 5 V, -2 mA at 3.3 V, -1 mA at 2.5 V

Absolute Maximum Ratings:

• Supply voltage (VCC1, VCC2): -0.5 to 6 V
• Voltage at INx, OUTx, ENx: -0.5 to VCCX + 0.5 V
• Output current (IO): ±15 mA
• Junction temperature: 150 °C
• Storage temperature: -65 to 150 °C

Key Specs:

• UVLO rising threshold: 2 V typ, 2.25 V max; falling threshold: 1.8 V typ, 1.7 V min; hysteresis 200 mV typ
• Input thresholds: VIH ≥ 0.7 × VCCI, VIL ≤ 0.3 × VCCI
• Propagation delay: 10.7 ns typ (5 V supplies)
• Supply current: 1.5 mA per channel typ at 1 Mbps
• DBQ-16 isolation (UL 1577): 3000 VRMS; VIOTM 4242 VPK; VIORM 566 VPK; VIOSM 10000 VPK
• DBQ-16 clearance and creepage: >3.7 mm
• Thermal resistance RθJA (DBQ): 109 °C/W
• ESD: HBM ±6000 V, CDM ±1500 V, IEC 61000-4-2 contact across the barrier ±7000 V

Features:

• 100 Mbps data rate
• ±100 kV/μs typical CMTI
• Greater than 30-year projected lifetime at 1500 VRMS working voltage (per features list)
• 2.25–5.5 V level translation
• Default output high (ISO774x) or low (ISO774xF) on loss of input power or signal
• Output enable pins for high-impedance outputs
• System-level ESD, EFT and surge immunity with low emissions
• Safety certifications: VDE 0884-17, UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, GB 4943.1
• Automotive version available (ISO774x-Q1)

Applications:

• Energy storage systems
• Industrial automation
• Motor control
• Power supplies
• Solar inverters
• Medical equipment

Package:

• QSOP (DBQ), 16-pin, 4.90 mm × 6.0 mm package size, 4.90 mm × 3.90 mm body
• Other family packages: SOIC (DW) 16-pin

• 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
• -For Ultra-wide package options, supporting >21.2mm Creepage, refer to ISO7741U and ISO7742U
• -For smaller, cost-optimized packages (up to 50% smaller for reinforced isolation), further improved noise immunity (up to 250kV/us CMTI) and higher data rate support (up to 150Mbps), refer to ISO644x
• 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

• Energy storage systems
• 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

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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.