Controllers | TL594

PWM 控制器

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概览

TL594 PWM 控制器在一个片上结合了脉宽调制 (PWM) 控制电路所需的所有功能。此器件主要用于电源控制，为系统工程师提供了针对特定应用量身定制电源控制电路的灵活性。TL594 PWM 控制器包含两个误差放大器，一个片上可调振荡器，一个停滞时间控制 (DTC) 比较器，一个脉冲转向控制触发器，一个 5-V、5% 精度稳压器,一个欠压锁定控制电路,以及输出控制电路。误差放大器的共模电压范围为 -0.3 V 至 VCC -2 V。DTC 比较器具有固定偏移值，提供大约 5% 停滞时间。片上振荡器可以通过为参考输出端接 RT，并向 CT 提供锯齿输入进行旁路联接，它也可用于驱动同步多轨电源中的公共电路。无承诺输出晶体管可提供公共发射器或发射器-跟随器输出功能。每个器件均提供推拉或单端输出运行，可通过输出控制功能进行选择。此类器件的体系结构禁止了推拉操作期间任一输出脉冲两次的可能性。欠压锁定控制电路会一直锁闭输出，指导内部电路运行。TL594CD、CN、CDTB 的运行温度范围为 -40C 至 85C。

  • Off-line power supply
  • Buck converter

  • VPA (Vehicle Power Adapter)
  • LED Lighting

  • 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
  • PWM Buck Controller Configuration
  • Variable Frequency Operation (up to 300 KHz)

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TL594CDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-16

751B-05

1

260

REEL

2500

N

Push-Pull

1

Voltage Mode

6

42

40

$0.4569

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TL594CDTBR2G

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Active

CAD Model

Pb

A

H

P

TSSOP-16

948F-01

1

260

REEL

2500

N

Push-Pull

1

Voltage Mode

6

42

40

$0.5897

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可靠性数据

Die Related Summary Data

Device: TL594CDR2G

Equivalent to wafer fab process: BP STD LINEAR

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

BP STD LINEAR

10

12120914040

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Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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