TI公司的TPS40210和TPS40211是宽输入电压(4.5V-52V)电流模式异步升压控制器，具有可编程软起动特性，带自动重起的过流保护和可编程的振荡频率，广泛应用于LED照明，工业控制系统以及以电池为能源的系统。本文介绍了TPS40210和TPS40211的主要特性，功能方框图以及几种设计案例和相应的所用材料清单(BOM)。

　　TPS40210, TPS40211 4.5-V TO 52-V INPUT CURRENT MODE BOOST

　　ONTROLLER

　　The TPS40210 and TPS40211 are wide-input voltage (4.5 V to 52

　　V), non-synchronous boost controllers. They are suitable for

　　topologies which require a grounded source N-channel FET

　　including boost, flyback, SEPIC and various LED Driver

　　applications. The device features include programmable soft

　　start, overcurrent protection with automatic retry and

　　programmable oscillator frequency. Current mode control

　　provides improved transient response and simplified loop

　　compensation. The main difference between the two parts is the

　　reference voltage to which the error amplifier regulates the

　　FB pin.

　　主要特性：

　　Suitable for Boost, Flyback, SEPIC, and LED Driver Topologies

　　Wide Input Operating Voltage: 4.5 V to 52 V

　　Adjustable Oscillator Frequency

　　Fixed Frequency Current Mode Control

　　Internal Slope Compensation

　　Integrated Low-Side Driver

　　Programmable Closed Loop Soft Start

　　Overcurrent Protection

　　700-mV Reference (TPS40210)

　　263-mV Reference (TPS40211)

　　Low Current Disable Function

　　应用：

　　LED Lighting

　　Industrial Control Systems

　　Battery Powered Systems

　　图1. TPS40210/1 功能方框图

　　图2.12V到24V异步升压稳压器

　　12-V to 24-V Non-Synchronous Boost Regulator

　　The following example illustrates the design process and

　　component selection for a 12-V to 24-V non-synchronous boost

　　regulator using the TPS40210 controller.

　　图3.TPS40210 设计案例： 8V 到 24V，电流 2A

　　图3所用材料清单(BOM)：

　　图4.12V输入， 700mA LED 驱动器，高达35V LED串

　　图4所用材料清单(BOM)：