???脉冲SIDTH调制控制电路 PULSE-SIDTH-MODULATION CONTROL CIRCUIT
description
The TL5002 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 TL5002 contains an error amplifier, a regulator, an oscillator, a PWM comparator with a dead-time-control input, undervoltage lockout UVLO, and an open-collector output transistor. The error-amplifier input common-mode voltage ranges from 0.9 V to 1.5 V. 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 TL5002 is characterized for operation from –40°C to 85°C.
Complete PWM Power Control
3.6-V to 40-V Operation
Internal Undervoltage-Lockout Circuit
Oscillator Frequency . . . 20 kHz to 500 kHz
Variable Dead Time Provides Control Over Total Range
Ideal Controller for DDR Memory Application
Uncommitted Error Amplifier Inputs
输出接口数 1
输出电压 2.5V ~ 40V
输出电流 21 mA
耗散功率 725 mW
开关频率 20kHz ~ 500kHz
输入电压Max 40 V
输入电压Min 3.6 V
输出电流Max 0.02 A
最大占空比 1
工作温度Max 85 ℃
工作温度Min -40 ℃
耗散功率Max 725 mW
输入电压 3.6V ~ 40V
安装方式 Surface Mount
引脚数 8
封装 SOIC-8
封装 SOIC-8
工作温度 -40℃ ~ 85℃ TA
产品生命周期 Active
包装方式 Tube
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
TL5002IDG4 TI 德州仪器 | 当前型号 | 当前型号 |
TL5002IDR 德州仪器 | 类似代替 | TL5002IDG4和TL5002IDR的区别 |
TL5002IDRG4 德州仪器 | 类似代替 | TL5002IDG4和TL5002IDRG4的区别 |