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TL594: PWM Controller

Overview
Specifications
Packages
Datasheet: PWM Control Circuit (up to 300 kHz)
Rev. 5 (145.0kB)
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Product Overview
产品说明
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.
特性   优势
     
  • 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
   
应用   终端产品
  • Off-line power supply
  • Buck converter
 
  • VPA (Vehicle Power Adapter)
  • LED Lighting
技术文档及设计资源
数据表 (1) 封装图纸 (3)
供货情况和样品
产品
状况
Compliance
具体说明
封装
MSL*
容器
预算价格 (1千个数量的单价)
类型
外形
类型
数量
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  
表面贴装器件的潮湿敏感度等级(MSL)(260°C回流温度时测量无铅,235°C回流温度时测量含铅)
市场订货至交货的时间(周) : Contact Factory
PandS   (2015-07-09) : <100
市场订货至交货的时间(周) : 2 to 4
Arrow   (Sat Jul 11 15:51:35 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
市场订货至交货的时间(周) : Contact Factory
Mouser   (2015-07-09) : <1K
市场订货至交货的时间(周) : 13 to 16
ON Semiconductor   (2015-07-08) : 2,500
市场订货至交货的时间(周) : 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)
»浏览可靠性数据
»查看材料成分
»产品更改通知 (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 
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