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ISOW7844DWER Datasheet(PDF) 1 Page - Texas Instruments |
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ISOW7844DWER Datasheet(HTML) 1 Page - Texas Instruments |
1 / 38 page DC-DC Primary DC-DC Secondary VCC VISO INx OUTx VSI VSO Isolation Capacitor Isolation Transformer GNDI GNDO Product Folder Order Now Technical Documents Tools & Software Support & Community An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. ISOW7840, ISOW7841, ISOW7842, ISOW7843, ISOW7844 SLLSEY2 – MARCH 2017 ISOW784x High-Performance, 5000-VRMS Reinforced Quad-Channel Digital Isolators With Integrated High-Efficiency, Low-Emissions DC-DC Converter 1 1 Features 1 • Integrated High-Efficiency DC-DC Converter With On-Chip Transformer • 3-V to 5.5-V Wide Input Supply Range • Regulated 5-V or 3.3-V Output • Up to 0.65-W Output Power • 5 V to 5 V; 5 V to 3.3 V: Available Load Current ≥ 130 mA • 3.3 V to 3.3 V: Available Load Current ≥ 75 mA • Soft-Start to Limit Inrush Current • Overload and Short-Circuit Protection • Thermal Shutdown • Default Output: High and Low Options • Signaling Rate Up to 100 Mbps • Low Propagation Delay: 13 ns Typ (5-V Supply) • High CMTI: ±100 kV/µs Minimum • Robust Electromagnetic Compatibility (EMC) – System-Level ESD, EFT, and Surge Immunity – Low Emissions • 16-pin Wide SOIC Package • Extended Temperature Range: –40°C to +125°C • Safety-Related Certifications: – 7071-VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 – 5000-VRMS Isolation for 1 Minute per UL 1577 – CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 End Equipment Standards – CQC Approval per GB4943.1-2011 – TUV Certification According to EN 60950-1 and EN 61010-1 – All Agency Certifications are Planned 2 Applications • Industrial Automation • Motor Control • Grid Infrastructure • Medical Equipment • Test and Measurement 3 Description The ISOW784x is a family of high-performance, quad-channel reinforced digital isolators with an integrated high-efficiency power converter. The integrated DC-DC converter provides up to 650 mW of isolated power at high efficiency and can be configured for various input and output voltage configurations. Therefore these devices eliminate the need for a separate isolated power supply in space- constrained isolated designs. The ISOW784x family of devices provide high electromagnetic immunity and low emissions while isolating CMOS or LVCMOS digital I/Os. The signal- isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier, whereas, power isolation uses on-chip transformers separated by thin film polymer as insulating material. Various configurations of forward and reverse channels are available. If the input signal is lost, the default output is high for the ISOW784x devices and low for the devices with the F suffix (see the Device Features). Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) ISOW7840 ISOW7841 ISOW7842 ISOW7843 ISOW7844 SOIC (16) 10.30 mm × 7.50 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Schematic VCC is the primary supply voltage referenced to GND1. VISO is the isolated supply voltage referenced to GND2. VSI and VSO can be either VCC or VISO depending on the channel direction. VSI is the input-side supply voltage referenced to GNDI and VSO is the output- side supply voltage referenced to GNDO. |
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