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TL594 脉冲宽度调制 (Pwm) 控制电路

TL594 描述
TL594
Topology Boost, Flyback, Forward
Control Method Voltage Mode
Duty Cycle(Max)(%) 45
Frequency(Max)(kHz) 300
UVLO Thresholds On/Off(V) 6.1/6
Pin/Package 16PDIP, 16SO, 16SOIC, 16TSSOP
Regulated Outputs(#) 2
Operating Temperature Range(°C) -40 to 85,0 to 70
Rating Catalog

The TL594 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 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%, 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 TL594C is characterized for operation from 0°C to 70°C. The TL594I is characterized for operation from -40°C to 85°C.

TL594 特性
TL594 芯片订购指南
器件 状态 温度 (oC) 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
TL594CD ACTIVE 0 to 70 0.41 | 1ku SOIC (D) | 16 40 | TUBE TL594C
TL594CDE4 ACTIVE 0 to 70 0.41 | 1ku SOIC (D) | 16 2000 | LARGE T&R TL594C
TL594CDG4 ACTIVE 0 to 70 0.41 | 1ku SOIC (D) | 16 2000 | LARGE T&R TL594C
TL594CDR ACTIVE 0 to 70 0.41 | 1ku SOIC (D) | 16 2000 | LARGE T&R TL594C
TL594CDRE4 ACTIVE 0 to 70 0.41 | 1ku SOIC (D) | 16 40 | TUBE TL594C
TL594CDRG3 PREVIEW 0 to 70 SOIC (D) | 16 40 | TUBE TL594C
TL594CDRG4 ACTIVE 0 to 70 0.41 | 1ku SOIC (D) | 16 2500 | LARGE T&R TL594C
TL594CN ACTIVE 0 to 70 0.46 | 1ku PDIP (N) | 16 2500 | LARGE T&R TL594CN
TL594CNE4 ACTIVE 0 to 70 0.46 | 1ku PDIP (N) | 16 2500 TL594CN
TL594CNSR ACTIVE 0 to 70 0.46 | 1ku SO (NS) | 16 2500 | LARGE T&R TL594
TL594CNSRE4 ACTIVE 0 to 70 0.46 | 1ku SO (NS) | 16 TL594
TL594CNSRG4 ACTIVE 0 to 70 0.46 | 1ku SO (NS) | 16 25 | TUBE TL594
TL594CPW ACTIVE 0 to 70 0.46 | 1ku TSSOP (PW) | 16 25 | TUBE T594
TL594CPWE4 ACTIVE 0 to 70 0.46 | 1ku TSSOP (PW) | 16 2000 | LARGE T&R T594
TL594CPWG4 ACTIVE 0 to 70 0.46 | 1ku TSSOP (PW) | 16 2000 | LARGE T&R T594
TL594CPWR ACTIVE 0 to 70 0.41 | 1ku TSSOP (PW) | 16 90 | TUBE T594
TL594CPWRE4 ACTIVE 0 to 70 0.41 | 1ku TSSOP (PW) | 16 90 | TUBE T594
TL594CPWRG4 ACTIVE 0 to 70 0.41 | 1ku TSSOP (PW) | 16 90 | TUBE T594
TL594ID ACTIVE -40 to 85 0.41 | 1ku SOIC (D) | 16 TL594I
TL594IDE4 ACTIVE -40 to 85 0.41 | 1ku SOIC (D) | 16 2000 | LARGE T&R TL594I
TL594IDG4 ACTIVE -40 to 85 0.41 | 1ku SOIC (D) | 16 2000 | LARGE T&R TL594I
TL594IDR ACTIVE -40 to 85 0.41 | 1ku SOIC (D) | 16 2000 | LARGE T&R TL594I
TL594IDRE4 ACTIVE -40 to 85 0.41 | 1ku SOIC (D) | 16 40 | TUBE TL594I
TL594IDRG4 ACTIVE -40 to 85 0.41 | 1ku SOIC (D) | 16 40 | TUBE TL594I
TL594IN ACTIVE -40 to 85 0.46 | 1ku PDIP (N) | 16 40 | TUBE TL594CN
TL594INE4 ACTIVE -40 to 85 0.46 | 1ku PDIP (N) | 16 2500 | LARGE T&R TL594CN
TL594INSR ACTIVE -40 to 85 0.46 | 1ku SO (NS) | 16 2500 | LARGE T&R TL594
TL594INSRG4 ACTIVE -40 to 85 0.46 | 1ku SO (NS) | 16 2500 | LARGE T&R TL594
TL594IPWR ACTIVE -40 to 85 0.41 | 1ku TSSOP (PW) | 16 25 | TUBE T594
TL594IPWRE4 ACTIVE -40 to 85 0.41 | 1ku TSSOP (PW) | 16 25 | TUBE T594
TL594IPWRG4 ACTIVE -40 to 85 0.41 | 1ku TSSOP (PW) | 16 T594
TL594 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
TL594CD Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594CD
TL594CDE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594CDE4
TL594CDG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL594CDG4 TL594CDG4
TL594CDR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594CDR
TL594CDRE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594CDRE4
TL594CDRG3   TL594CDRG3
TL594CDRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL594CDRG4 TL594CDRG4
TL594CN Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type   TL594CN
TL594CNE4 Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type   TL594CNE4
TL594CNSR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594CNSR
TL594CNSRE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594CNSRE4
TL594CNSRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL594CNSRG4 TL594CNSRG4
TL594CPW Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594CPW
TL594CPWE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594CPWE4
TL594CPWG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL594CPWG4 TL594CPWG4
TL594CPWR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594CPWR
TL594CPWRE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594CPWRE4
TL594CPWRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL594CPWRG4 TL594CPWRG4
TL594ID Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594ID
TL594IDE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594IDE4
TL594IDG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL594IDG4 TL594IDG4
TL594IDR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594IDR
TL594IDRE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594IDRE4
TL594IDRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL594IDRG4 TL594IDRG4
TL594IN Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type   TL594IN
TL594INE4 Pb-Free (RoHS) CU NIPDAU N/A for Pkg Type   TL594INE4
TL594INSR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594INSR
TL594INSRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL594INSRG4 TL594INSRG4
TL594IPWR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594IPWR
TL594IPWRE4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   TL594IPWRE4
TL594IPWRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM TL594IPWRG4 TL594IPWRG4
TL594 应用技术支持与电子电路设计开发资源下载
  1. TL594 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器AC/DC 和 DC/DC 电源产品选型与价格参考 . xls
  3. Dual MOSFET Driver (PDF 498 KB)
  4. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
  5. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  6. 所选封装材料的热学和电学性质 (PDF 645 KB)
  7. 高速数据转换 (PDF 1967 KB)
  8. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  9. Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
  10. Principles of Data Acquisition and Conversion (PDF 50 KB)
  11. Interleaving Analog-to-Digital Converters (PDF 64 KB)
  12. What Designers Should Know About Data Converter Drift (PDF 95 KB)
  13. Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
  14. Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)
TL594 工具与软件
名称 型号 公司 工具/软件类型
音频的快速搜索选择工具 AUDIO_SELECTION_TOOL Texas Instruments 免费评估工具
TL594 评估模块 TL594EVM Texas Instruments 开发电路板/EVM
用于音频转换器的软件驱动程序 CODECDRIVERS-SW Texas Instruments 应用软件