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

Complete PWM Power-Control Circuitry
Uncommitted Outputs for 200-mA Sink orSource Current
Output Control Selects Single-Ended or Push-Pull Operation
Internal Circuitry Prohibits Double Pulse at Either Output
Variable Dead Time Provides Control Over Total Range
Internal Regulator Provides a Stable 5-V Reference Supply Trimmed to 1%
Circuit Architecture Allows Easy Synchronization
Undervoltage Lockout for Low-VCC Conditions

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

TL594 数据资料 dataSheet 下载.PDF
TI 德州仪器AC/DC 和 DC/DC 电源产品选型与价格参考 . xls
Dual MOSFET Driver (PDF 498 KB)
标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
所选封装材料的热学和电学性质 (PDF 645 KB)
高速数据转换 (PDF 1967 KB)
Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
Principles of Data Acquisition and Conversion (PDF 50 KB)
Interleaving Analog-to-Digital Converters (PDF 64 KB)
What Designers Should Know About Data Converter Drift (PDF 95 KB)
Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
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