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0722 TI1

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Technical content

SBVS016B - SEPTEMBER 1978 – REVISED JULY 2008 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 © 1978-2008, 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 All trademarks are the property of their respective owners. www.ti.com

SBVS016Bwww.ti.com SPECIFIED PACKAGE TEMPERATURE PACKAGE ORDERING TRANSPORT PRODUCT PACKAGE-LEAD DESIGNATOR 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 (1) NOTES: (1) 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. (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.

SBVS016B 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 16.6 ✽✽ ✽ ✽ 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.

SBVS016Bwww.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

SBVS016B 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

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) 0722BG NRND CDIP JND 20 TBD Call TI Call TI 0722MG NRND CDIP JND 20 TBD Call TI Call TI 722G OBSOLETE CDIP JND 20 TBD Call TI Call TI (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. (2)Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontentfor the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS):TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt):This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br):TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. PACKAGE OPTION ADDENDUM www.ti.com 3-Aug-2009 Addendum-Page 1

MCDI035 – MARCH 2001 1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 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.

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