TL598 - 脉宽调制 (Pwm) 控制电路

TL598是TI德州仪器公司的一款PWM与谐振控制器产品，TL598是脉宽调制 (Pwm) 控制电路，本站介绍了TL598的封装应用图解、特点和优点、功能等，并给出了与TL598相关的TI元器件型号供参考。

TL598 - 脉宽调制 (Pwm) 控制电路 - PWM与谐振控制器 - 离线隔离型DC/DC控制器和转换器 - 德州仪器

产品描述

The TL598 incorporates all the functions required in the construction of pulse-width-modulated (PWM) controlled systems on a single chip. Designed primarily for power-supply control, the TL598 provides the systems engineer with the flexibility to tailor the power-supply control circuits to a specific application.

The TL598 contains two error amplifiers, an internal oscillator (externally adjustable), a dead-time control (DTC) comparator, a pulse-steering flip-flop, a 5-V precision reference, undervoltage lockout control, and output control circuits. Two totem-pole outputs provide exceptional rise- and fall-time performance for power FET control. The outputs share a common source supply and common power ground terminals, which allow system designers to eliminate errors caused by high current-induced voltage drops and common-mode noise.

The error amplifier has a common-mode voltage range of 0 V to VCC - 2 V. The DTC comparator has a fixed offset that prevents overlap of the outputs during push-pull operation. A synchronous multiple supply operation can be achieved by connecting RT to the reference output and providing a sawtooth input to CT.

The TL598 device provides an output control function to select either push-pull or parallel operation. Circuit architecture prevents either output from being pulsed twice during push-pull operation. The output frequency for push-pull applications is one-half the oscillator frequency (fo=1/2 RT CT). For single-ended applications: (fo=1/RT CT)

产品特性

Complete PWM Power-Control Function
Totem-Pole Outputs for 200-mA Sink or Source Current
Output Control Selects Parallel 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% Tolerance
On-Board Output Current-Limiting Protection
Undervoltage Lockout for Low VCC Conditions
Separate Power and Signal Grounds

下面可能是您感兴趣的TI德州仪器公司PWM与谐振控制器元器件

TI公司产品现货专家，订购TI公司产品不限最低起订量，TI芯片大陆现货即时发货，香港库存3-5天发货，海外库存7-10天发货

寻找全球TI代理商现货货源 - TI公司（德州仪器）电子元件在线订购