TL598 PDF

Designed primarily for power-supply control, the TL provides the systems engineer with the flexibility to tailor the power-supply control circuits to a specific application. The TL contains two error amplifiers, an internal oscillator externally adjustable , a dead-time control DTC comparator, a pulse-steering flip-flop, a 5-V precision reference, undervoltage lockout control, and output control circuits. Two totem-pole outputs provide exceptional rise- and fall-time performance for power FET control. The outputs share a common source supply and common power ground terminals, which allow system designers to eliminate errors caused by high current-induced voltage drops and common-mode noise.

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Designed primarily for power-supply control, the TL provides the systems engineer with the flexibility to tailor the power-supply control circuits to a specific application. The TL contains two error amplifiers, an internal oscillator externally adjustable , a dead-time control DTC comparator, a pulse-steering flip-flop, a 5-V precision reference, undervoltage lockout control, and output control circuits. Two totem-pole outputs provide exceptional rise- and fall-time performance for power FET control.

The outputs share a common source supply and common power ground terminals, which allow system designers to eliminate errors caused by high current-induced voltage drops and common-mode noise. The error amplifier has a common-mode voltage range of 0 V to VCC?

The DTC comparator has a fixed offset that prevents overlap of the outputs during push-pull operation. A synchronous multiple supply operation can be achieved by connecting RT to the reference output and providing a sawtooth input to CT.

The TL device provides an output control function to select either push-pull or parallel operation. Circuit architecture prevents either output from being pulsed twice during push-pull operation. The output frequency 1. Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www. 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.

Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Supply voltage, VCC see Note 1. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. All voltage values, except differential voltages, are with respect to the signal ground terminal. The package thermal impedance is calculated in accordance with JESD NOTE 4: Pulse-testing techniques that maintain the junction temperature as close to the ambient temperature as possible must be used. NOTE 4. Pulse-testing techniques that maintain the junction temperature as close to the ambient temperature as possible must be used.

Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible. NOTE Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible. Output VC 16 15 50 k? Oscillator Frequency? F Amplifier Voltage Amplification? Timing Resistance? Frequency variation? 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. Samples may or may not be available. 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.

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. All linear dimensions are in inches millimeters.

This drawing is subject to change without notice. This package can be hermetically sealed with a metal lid. The terminals are gold plated. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.

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.

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Использование ИС семейства TL494 в преобразователях питания

Использование ИС семейства TL в преобразователях питания TL и ее последующие версии - наиболее часто применяемая микросхема для построения двухтаткных преобразователей питания. КЕУ4 - отечественный аналог TL TL - аналог TL c улучшенной точностью усилителей ошибки и компаратора TL - аналог TL c двухтактным pnp-npn повторителем на выходе Настоящий материал - обобщение на тему оригинального техдока Texas Instruments ищите документ slvaa. Следует сразу отметить, что точностные параметры, коэффициент усиления, токи смещения и прочие аналоговые показатели улучшались от ранних серий к более поздним, в тексте - как правило - используются наихудшие, ранних серий параметры. Вкратце, у почтеннейшей микросхемы есть и недостатки, и достоинства. Плюс: Развитые цепи управления, два дифференциальный усилителя могут выполнять и логические функции Минус: Однофазные выходы требуют дополнительной обвески по сравнению с UC Минус: Недоступно токовое управление, относительно медленная петля обратной связи не критично в автомобильных ПН Минус: Cинхронное включение двух и более ИС не так удобно, как в UC 1.

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Bauteil: TL598

Designed primarily for power-supply control, the TL provides the systems engineer with the flexibility to tailor the power-supply control circuits to a specific application. The TL contains two error amplifiers, an internal oscillator externally adjustable , a dead-time control DTC comparator, a pulse-steering flip-flop, a 5-V precision reference, undervoltage lockout control, and output control circuits. Two totem-pole outputs provide exceptional rise- and fall-time performance for power FET control. The outputs share a common source supply and common power ground terminals, which allow system designers to eliminate errors caused by high current-induced voltage drops and common-mode noise. The DTC comparator has a fixed offset that prevents overlap of the outputs during push-pull operation. A synchronous multiple supply operation can be achieved by connecting RT to the reference output and providing a sawtooth input to CT. The TL device provides an output control function to select either push-pull or parallel operation.

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