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TL594: PWM Controller

Overview
Specifications
Packages
Datasheet: PWM Control Circuit (up to 300 kHz)
Rev. 5 (145.0kB)
»Показать данные по надёжности
»Показать химический состав
»Уведомление об обновлениях схем (6)
Product Overview
Описание продукта
The TL594 PWM Controller incorporates all the functions required in the construction of a pulse width modulation (PWM) control circuit on a single chip. Designed primarily for power-supply control, this device offers the systems engineer the flexibility to tailor the power-supply control circuitry to a specific application.

The TL594 PWM Controller contains two error amplifiers, an on-chip adjustable oscillator, a dead-time control (DTC) comparator, a pulse-steering control flip-flop, a 5-V regulator with a precision of 1.5%, an undervoltage lockout control circuit, and output control circuitry.

The error amplifiers have a common-mode voltage range of -0.3 V to VCC-2 V. The DTC comparator has a fixed offset that provides approximately 5% dead time. The on-chip oscillator can be bypassed by terminating RT to the reference output and providing a sawtooth input to CT, or it can be used to drive the common circuitry in synchronous multiple-rail power supplies.

The uncommitted output transistors provide either common-emitter or emitter-follower output capability. Each device provides for push-pull or single-ended output operation, with selection by means of the output-control function. The architecture of these devices prohibits the possibility of either output being pulsed twice during push-pull operation. The undervoltage lockout control circuit locks the outputs off until the internal circuitry is operational.
The TL594CD, CN, CDTB are characterized for operation from -40C to 85C.
Отличительные черты   Benefits
     
  • PWM Buck Controller Configuration
 
  • Simple to use in buck configuration
  • Variable Frequency Operation (up to 300 KHz)
 
  • Optimize system size and efficiency
  • Complete Pulse Width Modulation Control Circuitry
   
  • On-Chip Oscillator with Master or Slave Operation
   
  • On-Chip Error Amplifiers
   
  • On-Chip 5.0 V Reference, 1.5% Accuracy
   
  • Adjustable Deadtime Control
   
  • Uncommitted Output Transistors Rated to 500 mA Source or Sink
   
  • Output Control for Push-Pull or Single-Ended Operation
   
  • Undervoltage Lockout
   
  • Pb-Free Packages are Available
   
Применения   End Products
  • Off-line power supply
  • Buck converter
 
  • VPA (Vehicle Power Adapter)
  • LED Lighting
Технические информацие
Спецификацие (1) Типы корпусов (3)
Наличие и образцы
Продукт
Состояние
Compliance
Описание
Корпус
MSL*
Контейнер
Бюджетная цена единицы
Тип
Размеры
Тип
Кол.
TL594CDG Last Shipments 
Pb-free
PWM Controller SOIC-16 751B-05 1 Tube 48  
TL594CDR2G Active
Pb-free
PWM Controller SOIC-16 751B-05 1 Tape and Reel 2500 $0.56
TL594CDTBG Last Shipments 
Pb-free
Halide free
PWM Controller TSSOP-16 948F-01 1 Tube 96  
TL594CDTBR2G Active
Pb-free
Halide free
PWM Controller TSSOP-16 948F-01 1 Tape and Reel 2500 Contact Sales Office
TL594CNG Last Shipments 
Pb-free
Halide free
PWM Controller PDIP-16 648-08 NA Tube 500  
* Уровень чувствительности компонента к влажности
Market Leadtime (weeks) : Contact Factory
PandS   (2015-07-09) : <100
Market Leadtime (weeks) : 2 to 4
Arrow   (Sat Jul 11 09:20:03 MST 2015) : 2500
Avnet   (2015-07-09) : >1K
Digikey   (2015-07-09) : >1K
Mouser   (2015-07-09) : >1K
ON Semiconductor   (2015-07-08) : 2,500
PandS   (2015-07-09) : <1K
Market Leadtime (weeks) : Contact Factory
Mouser   (2015-07-09) : <1K
Market Leadtime (weeks) : 13 to 16
ON Semiconductor   (2015-07-08) : 2,500
Market Leadtime (weeks) : Contact Factory
ON Semiconductor   (2015-07-08) : 3,025
PandS   (2015-07-09) : <1K
Datasheet: PWM Control Circuit (up to 300 kHz)
Rev. 5 (145.0kB)
»Показать данные по надёжности
»Показать химический состав
»Уведомление об обновлениях схем (6)
Product Overview

Product Compliance Status Description Topology Phases Control Mode VCC Min (V) VCC Max (V) fSW Typ (kHz) tres Typ (ns) Package Type
 Pb-free   Active     PWM Controller 
 Flyback 
 Forward 
 Push-Pull 
 1   Voltage Mode   6   42   Up to 300   100   SOIC-16 
 Pb-free 
 Halide free 
 Active     PWM Controller 
 Flyback 
 Forward 
 Push-Pull 
 1   Voltage Mode   6   42   Up to 300   100   TSSOP-16 
Ранее просмотренные схемы
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