TL5001A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

TL5001A属于集成电路（IC）的PMIC-稳压器-DCDC开关式控制器。由德州仪器制造生产的TL5001ADC-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。

1FEATURES

· Qualified for Automotive Applications

· Complete PWM Power Control

· 3.6-V to 40-V Operation

· Internal Undervoltage-Lockout Circuit

· Internal Short-Circuit Protection

· Oscillator Frequency: 20 kHz to 500 kHz

· Variable Dead Time Provides Control Over

Total Range

· ±3% Tolerance on Reference Voltage

· Available in Q-Temperature Automotive

– High-Reliability Automotive Applications

– Configuration Control / Print Support

– Qualification to Automotive Standards

DESCRIPTION

The TL5001A incorporates on a single monolithic chip all the functions required for a pulse-width-modulation

(PWM) control circuit. Designed primarily for power-supply control, the TL5001A contains an error amplifier, a

regulator, an oscillator, a PWM comparator with a dead-time-control input, undervoltage lockout (UVLO),

short-circuit protection (SCP), and an open-collector output transistor. The TL5001A has a typical reference

voltage tolerance of ±3%.

The error-amplifier common-mode voltage ranges from 0 V to 1.5 V. The noninverting input of the error amplifier

is connected to a 1-V reference. Dead-time control (DTC) can be set to provide 0% to 100% dead time by

connecting an external resistor between DTC and GND. The oscillator frequency is set by terminating RT with an

external resistor to GND. During low VCC conditions, the UVLO circuit turns the output off until VCC recovers to its

normal operating range.

The TL5001A is characterized for operation from –40°C to 125°C.