0722BG

722BG BURR-BROWN | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 10

Technical content

SBVS016A - SEPTEMBER 1978 – REVISED JANUARY 2003 www.ti.com

DESCRIPTION

The 722 converts a single 5VDC to 16VDC input into a pair of bipolar output voltages of the same value as the input voltage. The converter is capable of providing a total output current of 64mA at rated voltage accuracy and up to 200mA without damage. The two output channels are isolated from the input and from each other. They may be connected independently, in series for higher output voltage or in parallel for higher output current, as a single channel isolated DC/DC converter. Integrated circuit construction of the 722 reduces size and cost. High isolation breakdown voltages and low leakage currents are assured by special design and construction that includes use of a high dielectric strength, low leakage coating used on the internal assembly. A self-contained 900kHz oscillator drives switching circuitry, which is designed to eliminate the common problem of input current spiking due to transformer saturation or crossover switching.

FEATURES

G DUAL ISOLATED ±5V TO ±16V OUTPUTS G HIGH BREAKDOWN VOLTAGE: 8000V Test G LOW LEAKAGE CURRENT: < 1µA at 240V/60Hz G LOW COST PER ISOLATED CHANNEL G SMALL SIZE: 27.9mm x 27.9mm x 7.6mm

APPLICATIONS

G INDUSTRIAL PROCESS CONTROL G TEST EQUIPMENT G DATA ACQUISITION SYSTEMS G NUCLEAR INSTRUMENTATION PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2003, Texas Instruments Incorporated DUAL ISOLATED DC/DC CONVERTER 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. Oscillator and Switch Drivers +V O1 C 1 –VO1 E 20V+ V– 16 Rectifiers and Filters +V O2 C 2 –VO2 Rectifiers and Filters

SBVS016Awww.ti.com SPECIFIED PACKAGE TEMPERATURE PACKAGE ORDERING TRANSPORT PRODUCT PACKAGE-LEAD DESIGNATOR (1) RANGE (2) MARKING NUMBER MEDIA, QUANTITY

722 DIP-20 JND –25°C to +85°C 722 722G Rails, 17

722BG DIP-20 JND –25°C to +85°C 722BG 722BG Rails, 17 722MG DIP-20 JND –25°C to +85°C 722MG 722MG Rails, 17 PACKAGE/ORDERING INFORMATION NOTES: (1) For the most current specifications, and package information, refer to our web site at www.ti.com. (2) –25°C to +60°C for 16mA ≤ ILOAD ≤ 40mA per output. NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied. ABSOLUTE MAXIMUM RATINGS (1) ELECTROSTATIC DISCHARGE SENSITIVITY This integrated circuit can be damaged by ESD. Texas Instru- ments 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.

SBVS016A www.ti.com

ELECTRICAL CHARACTERISTICS

At TA = +25°C, VIN = 15VDC, C = 0.47µF, and R1 selected per typical characteristic, unless otherwise noted. 722 722BG 722MG PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS INPUT Rated Input Voltage 15 ✽✽ VDC Input Voltage Range(1) 51 6 ✽✽ ✽ ✽ VDC Input Current Total Output Current = 12mA 50 ✽✽ mA Total Output Current = 64mA 105 120 ✽✽ ✽ ✽ mA Total Output Current = 64mA at TA = +85°C 120 ✽✽ mA Total Output Current = 160mA —— 225 275 —— mA Input Ripple(2) Total Output Current = 12mA 3 ✽✽ mA, pk Total Output Current = 64mA 6 ✽✽ mA, pk Total Output Current = 160mA — 12 — mA, pk ISOLATION Test Voltages Input-to-Output, 5 seconds, min 8000 ✽✽ Vpk Input-to-Output, 1 minute, min —— 2500 Vrms Channel-to-Channel, 5 seconds, min 5000 ✽✽ Vpk Rated Voltages Input-to-Output, continuous 3500 ✽✽ V Channel-to-Channel, continuous 2000 ✽✽ ✽ V Isolation Impedance Input-to-Output 10 || 6 ✽✽ G Ω || pF Leakage Current(3) Input-to-Output, 240V, 60Hz 1 ✽✽ µA OUTPUT Rated Output Voltages(4) ILOAD = 3mA per Output 15.4 16.2 ✽✽ ✽ ✽ VDC ILOAD = 16mA per Output 14.3 16.2 ✽✽ ✽ ✽ VDC ILOAD = 40mA per Output ——— 13.0 14.2 16.2 —— — VDC Output Current Total of All Outputs 200 ✽✽ mA Any One Output(5) 3 100 ✽✽ ✽ ✽ mA Load Regulation (5) ✽✽ Ripple Voltage I LOAD = 3mA per Output 15 ✽✽ mVpk ILOAD = 16mA per Output 35 100 ✽✽ ✽ ✽ mVpk ILOAD = 40mA per Output — 50 ✽ mVpk Tracking Error between Balanced Loads ±200 ✽✽ mVDC Dual Outputs Sensitivity to Input Voltage Changes 1.13 ✽✽ V/V Output Voltage Temperature T A = TSPECIFICATION RANGE ±0.02 ✽✽ %/°C Coefficient TEMPERATURE Specification I LOAD ≤ 16mA per Output –25 +85 ✽✽ ✽ ✽ °C ILOAD ≤ 40mA per Output –25 +60 ✽✽ ✽ ✽ °C Storage –55 +125 ✽✽ ✽ ✽ °C Junction Temperature +125 ✽✽ °C ✽ Specifications same as 722. NOTES: (1) For ambient temperature above +70°C, the input voltage is 12.5V (max). The input voltage remains 16V (max) if case temperature is kept below +85°C. (2) External capacitor across P+ to V– pins and 12" of #24 wire to VIN. (3) Reference UL544, paragraph 27.5, Leakage Current. (4) See Typical Characteristics. (5) A minimum output current of 3mA at each output is recommended to maintain output voltage accuracy.

SBVS016Awww.ti.com TYPICAL CHARACTERISTICS At TA = +25°C, VIN = 15VDC, C = 0.47µF, and R1 selected per typical characteristic, unless otherwise noted. MAXIMUM OUTPUT CURRENT FROM ANY SINGLE OUTPUT 16mA to <16mA 30mA 30mA >13 1.3k Ω 820Ω 510Ω 11 to 13 820 Ω 510Ω 200Ω 9 to 11 510 Ω 200Ω 0Ω 8 to 9 200 Ω 0Ω — <8 0 Ω —— V+ EXT 6.5V 7.5V 9.0V Input Voltage (V) SELECTION OF R 1 OR EXTERNAL VOLTAGE V+ FOR MINIMUM INTERNAL POWER DISSIPATION NOTES: (1) Using a 104mm x 19mm x 1.6mm aluminum strip mounted to the bottom of the case with heat sink compound. (2) Total output current is the sum of the currents for each individual output. MAXIMUM SAFE OPERATING TEMPERATURE vs TOTAL OUTPUT CURRENT Total Output Current (2) (mA) 125 100 0 50 100 150 200 125 100 Maximum Ambient Temperature °C Maximum Case Temperature(1) (°C)Case Ambient OUTPUT VOLTAGE vs INPUT VOLTAGE Input Voltage (V) Output Voltage (V) 81 2 1 6 Total Output Current = 64mA Total Output Current = 12mA Total Output Current = 200mA SINGLE-CHANNEL LOAD REGULATION Output Load Current |IL| (mA) Output Load Voltage, |VLOAD | (V) 0 20 40 60 80 100 VO VO IF V V LoadLoad IF IL IL IF = 3mA = 16mA IF IF = 50mA SINGLE OUTPUT LOAD REGULATION Output Load Current |IL| (mA) Output Load Voltage, |VLOAD | (V) 0 20 40 60 80 100 VO VO IF V VO Load IF ILIF = 3mA IF = 16mA IF = 50mA IF CHANNEL-TO-CHANNEL INTERACTION Output Load Current |IL| (mA) Opposite Channel, Output Voltage, |VN | (V) 0 20 40 60 80 100 VN VN IF V V Load IF IL IF IF = 3mA IF = 16mA IF = 50mA

SBVS016A www.ti.com TYPICAL CHARACTERISTICS (Cont.) At TA = +25°C, VIN = 15VDC, C = 0.47µF, and R1 selected per typical characteristic, unless otherwise noted. PARALLEL OUTPUT BALANCED LOAD REGULATION Output Load Current |IL| (mA) Output Load Voltage, |VLOAD | (V) 0 20 40 60 80 100 V LoadLoad IL IL V VV PARALLEL OUTPUT UNBALANCED LOAD REGULATION Output Load Current |IL| (mA) Output Load Voltage, |VLOAD | (V) 0 40 80 120 160 200 V Load IL IF V VOVO IF = 100mA IF = 6mA IF = 32mA OUTPUT-TO-OUTPUT INTERACTION Output Load Current |IL| (mA) Opposite Output, Output Voltage, |VN | (V) 0 40 80 120 160 200 V Load IL IF V VNVN IF = 100mA IF = 6mA IF = 32mA

SBVS016Awww.ti.com PACKAGE DRAWING JND (R-CDIP–P20) CERAMIC DUAL-IN-LINE 4202121/A 03/01 11 0 1.080 (27,43) 1.120 (28,45) 1.080 (27,43) 1.120 (28,45) Area 0.285 (7,24) 0.235 (5,97) 0.350 (8,89) 0.150 (3,81) 0.010 (0,25) 0.002 (0,05) 0.021 (0,53) 0.018 (0,46) 0.035 (0,89) 0.050 (1,27) Index Seating Plane 0.100 (2,54) 0.100 (2,54) NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice. C. Leads in true position within 0.010 (0,25) R @ MMC at seating plane. D. Pin numbers shown for reference only. Numbers may not be marked on package. E. A visual index feature must be located within the cross–hatched area.

ORDERABLE DEVICE STATUS(1) PACKAGE TYPE PACKAGE DRAWING PINS PACKAGE QTY 0722BG NRND CDIP JND 20 17 0722MG NRND CDIP JND 20 17 722G ACTIVE CDIP JND 20 17 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. PACKAGE OPTION ADDENDUM www.ti.com 3-Oct-2003

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Applications Amplifiers amplifier.ti.com Audio www.ti.com/audio Data Converters dataconverter.ti.com Automotive www.ti.com/automotive DSP dsp.ti.com Broadband www.ti.com/broadband Interface interface.ti.com Digital Control www.ti.com/digitalcontrol Logic logic.ti.com Military www.ti.com/military Power Mgmt power.ti.com Optical Networking www.ti.com/opticalnetwork Microcontrollers microcontroller.ti.com Security www.ti.com/security Telephony www.ti.com/telephony Video & Imaging www.ti.com/video Wireless www.ti.com/wireless Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright  2003, Texas Instruments Incorporated