描述The TPS40210 is a wide input voltage (5.5 V to 52 V) non-synchronous boost controller. It is suitable for topologies that require a grounded source N-channel FET, including boost, flyback, SEPIC, and various LED driver applications. 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.特性 For Boost, Flyback, SEPIC, LED Driver Applications Wide Input Operating Voltage: 5.5 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 Reference Voltage: 700 mVLow-Current Disable Function APPLICATIONS Down-Hole Drilling High Temperature Environments SUPPORTS EXTREME TEMPERATURE APPLICATIONS Controlled Baseline One Assembly/Test Site One Fabrication Site Available in Extreme (–55°C/210°C) Temperature Range(1) Extended Product Life Cycle Extended Product-Change Notification Product Traceability Texas Instruments high temperature products utilize highly optimized silicon (die) solutions with design and process enhancements to maximize performance over extended temperatures.(1) Custom temperature ranges available