TL1453CD集成电路（IC）的PMIC-稳压器-DCDC开关式控制器规格书PDF中文资料

TL1453CD属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由美国德州仪器公司制造生产的TL1453CDDC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。

Complete PWM Power Control Circuitry

Completely Synchronized Operation

Internal Undervoltage Lockout Protection

Wide Supply Voltage Range

Oscillator Frequency . . . 500 kHz Max

Variable Dead Time Provides Control

Over Total Range

Internal Regulator Provides a Stable 2.5-V

Reference Supply

description

The TL1453C incorporates the functions required in the construction of two pulse-width-modulation control

circuits on a single monolithic chip. Designed primarily for power supply control, the TL1453C contains an

on-chip 2.5-V regulator, two error amplifiers, an adjustable oscillator, two dead-time comparators, undervoltage

lockout circuitry, and dual common-emitter output transistor circuits.

The uncommitted output transistors provide common-emitter output capability for each controller. The internal

amplifiers exhibit a common-mode voltage range from 1.05 V to 1.45 V. The dead-time control comparator has

no offset unless externally altered and may be used to provide 0% to 100% dead time. The on-chip oscillator

may be operated by terminating RT (pin 2) and CT (pin 1). During low-VCC conditions, the undervoltage lockout

control circuit feature inhibits the output until the internal circuitry is operational.

The TL1453C is characterized for operation from –20°C to 85°C.