LM25037中文资料具有交替输出、工作温度范围为 -40°C 至 125°C 的 5.5V 至 75V、1.2A 栅极驱动器、双模式 PWM 控制器数据手册TI规格书

描述 Description

The LM25037 PWM controller contains all the features necessary to implement balanced double-ended power converter topologies, such as push-pull, half-bridge and full-bridge. These double-ended topologies allow for higher efficiencies and greater power densities compared to common single-ended topologies such as the flyback and forward. The LM25037 can be configured for either voltage mode or current mode control with minimum external components. Two alternating gate drive outputs are provided, each capable of 1.2-A peak output current. The LM25037 can be configured to operate directly from the input voltage rail over an ultra-wide range of 5.5 V to 75 V. Additional features include programmable maximum duty cycle limit, line undervoltage lockout, cycle-by-cycle current limit and a hiccup mode fault protection with adjustable timeout delay, soft-start and a 2-MHz capable oscillator with synchronization capability, precision reference and thermal shutdown.

特性 Features

• Qualified for Automotive Applications
• Device Temperature Grade 1: -40°C to +125°C Operating Junction Temperature
• Device CDM ESD Classification Level C4B
• Alternating Outputs for Double-Ended Topologies
• Current-Mode or Feed-Forward Voltage-Mode Control
• 2% Feedback Reference Accuracy
• Programmable Line Undervoltage Lockout (UVLO) With Adjustable Hysteresis
• Programmable Soft-Start
• Current Sense Leading Edge Blanking
• Oscillator Synchronization Capability With Low-Frequency Lockout Protection
• 16-Pin TSSOP