ISO150AU

ISO150 ISO 15 0 www.ti.com .......................................................................................................................................... SBOS032D – SEPTEMBER 2000 – REVISED AUGUST 2008 DUAL, ISOLATED, BIDIRECTIONAL DIGITAL COUPLER FEATURES 1 • • • • • • • • • Replaces High-Performance Optocouplers Data Rate: 80 M Baud, Typ Low Power Consumption: 25 mW Per Channel, Max Two Channels, Each Bidirectional, Programmable by User Partial Discharge Tested: 2400 Vrms Creepage Distance of 7,2 mm Low Cost Per Channel Available in SO Package UL 1577 Certified APPLICATIONS • • • • • • • • Digital Isolation for A/D, D/A Conversion Isolated RS-485 Interface Multiplexed Data Transmission Isolated Parallel to Serial Interface Test Equipment Microprocessor System Interface Isolated Line Receiver Ground Loop Elimination DESCRIPTION The ISO150 is a 2-channel, galvanically-isolated data coupler capable of data rates of 80M Baud, typical. Each channel can be individually programmed to transmit data in either direction. Data is transmitted across the isolation barrier by coupling complementary pulses through high voltage 0.4 pF capacitors. Receiver circuitry restores the pulses to standard logic levels. Differential signal transmission rejects isolation-mode voltage transients up to 1.6 kV/µs The ISO150 avoids problems commonly associated with optocouplers. Optically isolated couplers require high current pulses and allowance must be made for LED aging. The ISO150's Bi-CMOS circuitry operates at 25 mW per channel. The ISO150 is available in an SO-28 and is specified for operation from –40°C to 85°C. 28 27 26 17 16 15 D2A R/T2A GA VSB R/T2B D2B Channel 2 Side A Side B Channel 1 D1A R/T1A VSA GB R/T1B D1B 1 2 3 12 13 14 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2000–2008, Texas Instruments Incorporated ISO150 SBOS032D – SEPTEMBER 2000 – REVISED AUGUST 2008 .......................................................................................................................................... www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ORDERING INFORMATION (1) (1) PRODUCT PACKAGE LEAD PACKAGE DESIGNATOR SPECIFIED TEMPERATURE RANGE PACKAGE MARKING ISO150AU SO-28 DVB –40°C to 85°C ISO150AU TRANSPORT MEDIA, QUANTITY ORDERING NUMBER ISO150AU Rails, 28 ISO150AU/1K Tape and Reel, 1000 For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com. ABSOLUTE MAXIMUM RATINGS over operating free-air temperature range (unless otherwise noted) (1) (2) UNIT Storage temperature –40°C to 125°C VS Supply voltage VI Transmitter input voltage –0.5 V to VS + 0.5 V –0.5 V to 6 V VO Receiver output voltage –0.5 V to VS + 0.5 V R/Tx inputs –0.5 V to VS + 0.5 V VISO Isolation voltage dV/dt 500 kV/µs Dx Short to ground Continuous TJ Junction temperature 125°C Lead temperature (soldering, 10s) 260°C (1) (2) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. This isolator is suitable for basic insulation applications within the safety limiting data. Maintenance of the safety data must be ensured by means of protective circuitry. REGULATORY INFORMATION UL Recognized under 1577 Component Recognition Program (1) File Number: E181974 (1) 2 Production tested at 2400 VRMS for 1 second in accordance with UL 1577. Submit Documentation Feedback Copyright © 2000–2008, Texas Instruments Incorporated Product Folder Link(s): ISO150 ISO150 www.ti.com .......................................................................................................................................... SBOS032D – SEPTEMBER 2000 – REVISED AUGUST 2008 ELECTRICAL CHARACTERISTICS At TA = 25°C and VS = 5 V (unless otherwise noted) PARAMETER TEST CONDITIONS ISO150AU MIN TYP MAX UNIT ISOLATION PARAMETERS Rated Voltage, Continuous 60 Hz 1500 Partial Discharge, 100% Test (1) 1s, 5pC 2400 Creepage distance (external) SO-U Package Vrms Vrms 7.2 Internal isolation distance Isolation voltage transient immunity (2) Barrier impedance Leakage current 240 Vrms, 50 Hz mm 0.10 mm 1.6 kV/µs >1014 || 7 Ω || pF 0.6 µArms DC PARAMETERS Logic output voltage HIGH, VOH IOH = 6 mA VS –1 VS LOW, VOL IOL = 6 mA 0 0.4 Logic output short-circuit current Logic input voltage Source or sink 30 mA HIGH (3) 2 VS LOW (3) 0 0.8 Logic input capacitance Logic input current Power-supply voltage range (3) 3 DC Transmit mode Power-supply current (4) Receive mode V V 5 pF