ISO7742-Q1 Series

Automotive, robust EMC, quad-channel, 2/2, reinforced digital isolator

Catalog

Automotive, robust EMC, quad-channel, 2/2, reinforced digital isolator

Part	Mounting Type	Technology	Inputs - Side 1/Side 2 [custom]	Inputs - Side 1/Side 2 [custom]	Voltage - Supply [Max]	Voltage - Supply [Min]	Propagation Delay tpLH / tpHL (Max) [Max] [custom]	Propagation Delay tpLH / tpHL (Max) [Max] [custom]	Common Mode Transient Immunity (Min) [Min]	Pulse Width Distortion (Max) [Max]	Package / Case	Package / Case	Package / Case	Voltage - Isolation	Qualification	Operating Temperature [Max]	Operating Temperature [Min]	Grade	Data Rate	Type	Supplier Device Package	Number of Channels	Channel Type	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Package / Case [x]	Package / Case [y]
Texas Instruments ISO7742QDBQRQ1	Surface Mount	Capacitive Coupling	2	2	5.5 V	2.25 V	16 ns	16 ns	85 kV/Ás	4.9 ns	0.154 in	16-SSOP	3.9 mm	2500 Vrms	AEC-Q100	125 °C	-40 °C	Automotive	100 Mbps	General Purpose	16-SSOP	4	Unidirectional	2.4 ns	2.4 ns
Texas Instruments ISO7742DBQ	Surface Mount	Capacitive Coupling	2	2	5.5 V	2.25 V	16 ns	16 ns	85 kV/Ás	4.9 ns	0.154 in	16-SSOP	3.9 mm	3000 VAC		125 °C	-55 °C		100 Mbps	General Purpose	16-SSOP	4	Unidirectional	3.9 ns	3.9 ns
Texas Instruments ISO7742QDBQQ1	Surface Mount	Capacitive Coupling	2	2	5.5 V	2.25 V	16 ns	16 ns	85 kV/Ás	4.9 ns	0.154 in	16-SSOP	3.9 mm		AEC-Q100	125 °C	-40 °C	Automotive	100 Mbps	General Purpose	16-SSOP	4	Unidirectional	2.4 ns	2.4 ns
Texas Instruments ISO7742DW	Surface Mount	Capacitive Coupling	2	2	5.5 V	2.25 V	16 ns	16 ns	85 kV/Ás	4.9 ns		16-SOIC				125 °C	-55 °C		100 Mbps	General Purpose	16-SOIC	4	Unidirectional	2.4 ns	2.4 ns	0.295 in	7.5 mm
Texas Instruments ISO7742DWR	Surface Mount	Capacitive Coupling	2	2	5.5 V	2.25 V	16 ns	16 ns	85 kV/Ás	4.9 ns		16-SOIC				125 °C	-55 °C		100 Mbps	General Purpose	16-SOIC	4	Unidirectional	2.4 ns	2.4 ns	0.295 in	7.5 mm
Texas Instruments ISO7742FDBQ	Surface Mount	Capacitive Coupling	2	2	5.5 V	2.25 V	16 ns	16 ns	85 kV/Ás	4.9 ns	0.154 in	16-SSOP	3.9 mm	3000 VAC		125 °C	-55 °C		100 Mbps	General Purpose	16-SSOP	4	Unidirectional	3.9 ns	3.9 ns
Texas Instruments ISO7742FDW	Surface Mount	Capacitive Coupling	2	2	5.5 V	2.25 V	16 ns	16 ns	85 kV/Ás	4.9 ns		16-SOIC				125 °C	-55 °C		100 Mbps	General Purpose	16-SOIC	4	Unidirectional	2.4 ns	2.4 ns	0.295 in	7.5 mm
Texas Instruments ISO7742DBQR	Surface Mount	Capacitive Coupling	2	2	5.5 V	2.25 V	16 ns	16 ns	85 kV/Ás	4.9 ns	0.154 in	16-SSOP	3.9 mm	2500 Vrms		125 °C	-55 °C		100 Mbps	General Purpose	16-SSOP	4	Unidirectional	2.4 ns	2.4 ns
Texas Instruments ISO7742QDWQ1	Surface Mount	Capacitive Coupling	2	2	5.5 V	2.25 V	16 ns	16 ns	40 kV/µs	4.9 ns		16-SOIC			AEC-Q100	125 °C	-40 °C	Automotive	100 Mbps	General Purpose	16-SOIC	4	Unidirectional	2.4 ns	2.4 ns	0.295 in	7.5 mm
Texas Instruments ISO7742FQDBQRQ1	Surface Mount	Capacitive Coupling	2	2	5.5 V	2.25 V	16 ns	16 ns	85 kV/Ás	4.9 ns	0.154 in	16-SSOP	3.9 mm	2500 Vrms	AEC-Q100	125 °C	-40 °C	Automotive	100 Mbps	General Purpose	16-SSOP	4	Unidirectional	2.4 ns	2.4 ns

Catalog

Automotive, robust EMC, quad-channel, 2/2, reinforced digital isolator

Key Features

• Qualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature Grade 1: –40°C to 125°C ambient operating temperatureFunctional Safety-CapableDocumentation available to aid functional safety system design:ISO7740-Q1,ISO7741-Q1,ISO7742-Q1100Mbps data rateRobust isolation barrier:>30-year projected lifetime at 1500VRMS working voltageUp to 5700VRMS isolation ratingUp to 12.8kV surge capability±100kV/µs typical CMTIWide supply range: 2.25V to 5.5V2.25V to 5.5V level translationDefault output high (ISO774x) and low (ISO774xF) optionsLow power consumption, typical 1.5mA per channel at 1MbpsLow 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 barrierLow emissionsExtra-wide SOIC (DWW-16), wide-SOIC (DW-16) and QSOP (DBQ-16) package optionsSafety-related certifications:DIN EN IEC 60747-17 (VDE 0884-17)UL 1577 component recognition programIEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certificationsQualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature Grade 1: –40°C to 125°C ambient operating temperatureFunctional Safety-CapableDocumentation available to aid functional safety system design:ISO7740-Q1,ISO7741-Q1,ISO7742-Q1100Mbps data rateRobust isolation barrier:>30-year projected lifetime at 1500VRMS working voltageUp to 5700VRMS isolation ratingUp to 12.8kV surge capability±100kV/µs typical CMTIWide supply range: 2.25V to 5.5V2.25V to 5.5V level translationDefault output high (ISO774x) and low (ISO774xF) optionsLow power consumption, typical 1.5mA per channel at 1MbpsLow 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 barrierLow emissionsExtra-wide SOIC (DWW-16), wide-SOIC (DW-16) and QSOP (DBQ-16) package optionsSafety-related certifications:DIN EN IEC 60747-17 (VDE 0884-17)UL 1577 component recognition programIEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1 certifications

Description

The ISO774x devices are high-performance, quad-channel digital isolators with 5000VRMS (DW package) and 3000VRMS (DBQ package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC. The ISO7741B device is designed for applications that require basic insulation ratings only. The ISO774x 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. These devices come with enable pins which can be used to put the respective outputs in high impedance for multi-controller driving applications and to reduce power consumption. The ISO7740 device has all four channels in the same direction, the ISO7741 device has three forward and one reverse-direction channels, and theISO7742device has two forward and two reverse-direction channels. If the input power or signal is lost, 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 RS-485, RS-232, and CAN, or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through remarkable chip design and layout techniques, electromagnetic compatibility of the ISO774x devices significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO774x devices are available in 16-pin SOIC and QSOP packages. The ISO774x devices are high-performance, quad-channel digital isolators with 5000VRMS (DW package) and 3000VRMS (DBQ package) isolation ratings per UL 1577. This family includes devices with reinforced insulation ratings according to VDE, CSA, TUV and CQC. The ISO7741B device is designed for applications that require basic insulation ratings only. The ISO774x 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. These devices come with enable pins which can be used to put the respective outputs in high impedance for multi-controller driving applications and to reduce power consumption. The ISO7740 device has all four channels in the same direction, the ISO7741 device has three forward and one reverse-direction channels, and theISO7742device has two forward and two reverse-direction channels. If the input power or signal is lost, 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 RS-485, RS-232, and CAN, or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through remarkable chip design and layout techniques, electromagnetic compatibility of the ISO774x devices significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO774x devices are available in 16-pin SOIC and QSOP packages.