TPS40200-EP中文资料增强型产品宽输入范围非同步电压模式控制器数据手册TI规格书

描述 Description

The TPS40200 is a flexible nonsynchronous controller with a built-in 200-mA driver for P-channel FETs. The circuit operates with inputs up to 52 V, with a power-saving feature that turns off driver current once the external FET has been fully turned on. This feature extends the flexibility of the device, allowing it to operate with an input voltage up to 52 V, without dissipating excessive power. The circuit operates with voltage-mode feedback and has feed-forward input-voltage compensation that responds instantly to input-voltage change. The integral 700-mV reference is trimmed to 2%, providing the means to accurately control low voltages. The TPS40200 is available in an 8-pin SOIC, and supports many of the features of more complex controllers. Clock frequency, soft start, and overcurrent limit each are easily programmed by a single, external component. The part has undervoltage lockout, and can be easily synchronized to other controllers or a system clock to satisfy sequencing and/or noise-reduction requirements.

特性 Features

• Controlled Baseline
• Extended Temperature Performance of –55°C to 125°C
• Enhanced Product-Change Notification
• Input Voltage Range 4.5 V to 52 V
• 200-mA Internal P-Channel FET Driver
• Undervoltage Lockout
• Programmable Short-Circuit Protection
• Programmable Closed-Loop Soft Start
• External Synchronization
• Small 8-Pin Small-Outline Integrated Circuit (SOIC) (D) Package