器件名称: TPS40211
功能描述: 4.5-V TO 52-V INPUT CURRENT MODE BOOST CONTROLLER
文件大小: 1338.71KB 共45页
简 介:TPS40210, TPS40211
www.ti.com ......................................................................................................................................................... SLUS772A – MARCH 2008 – REVISED APRIL 2008
4.5-V TO 52-V INPUT CURRENT MODE BOOST CONTROLLER
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FEATURES
For Boost, Flyback, SEPIC, LED Drive Apps 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 External Synchronization Capable Reference700-mV (TPS40210), 263-mV (TPS40211) Low Current Disable Function
CONTENTS
Device Ratings Electrical Characteristics Typical Characteristics Terminal Information Application Information Additional References Design Examples 2 3 5 10 12 25 26
DESCRIPTION
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.
APPLICATIONS
LED Lighting Indust……
