LM5020 - 13-100V 宽输入电压、电流模式 PWM 升压控制器

LM5020是TI德州仪器公司的一款控制器（外部开关）产品，LM5020是13-100V 宽输入电压、电流模式 PWM 升压控制器，本站介绍了LM5020的封装应用图解、特点和优点、功能等，并给出了与LM5020相关的TI元器件型号供参考。

LM5020 - 13-100V 宽输入电压、电流模式 PWM 升压控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The LM5020 high voltage pulse-width-modulation (PWM) controller contains all of the features needed to implement single ended primary power converter topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent line feed-forward. The LM5020 includes a high-voltage start-up regulator that operates over a wide input range up to 100V. The PWM controller is designed for high speed capability including an oscillator frequency range to 1MHz and total propagation delays less than 100ns. Additional features include an error amplifier, precision reference, line under-voltage lockout, cycle-by-cycle current limit, slope compensation, softstart, oscillator synchronization capability and thermal shutdown. The controller is available in both MSOP-10 and LLP-10 packages.

产品特性

Internal Start-up Bias Regulator
Error Amplifier
Precision Voltage Reference
Programmable Softstart
1A Peak Gate Driver
Maximum Duty Cycle Limiting (80% for LM5020-1 or 50% for LM5020-2)
Programmable Line Under Voltage Lockout (UVLO) with Adjustable Hysteresis
Cycle-by-Cycle Over-Current Protection
Slope Compensation (LM5020-1)
Programmable Oscillator Frequency with Synchronization Capability
Current Sense Leading Edge Blanking
Thermal Shutdown Protection

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