LM25037
- Qualified for Automotive Applications
- AEC-Q100 Qualified With
the Following Results:
- Device Temperature Grade 1: -40°C to +125°C Operating Junction Temperature
- Device HBM ESD Classification Level 2
- Device CDM ESD Classification Level C4B
- Alternating Outputs for Double-Ended Topologies
- Ultra Wide Input Operating Range from 5.5 V to 75 V
- Current-Mode or Feed-Forward Voltage-Mode Control
- Programmable Maximum Duty Cycle Limit
- 2% Feedback Reference Accuracy
- High Gain-Bandwidth Error Amplifier
- Programmable Line Undervoltage Lockout (UVLO) With Adjustable Hysteresis
- Versatile Dual Mode Overcurrent Protection With Hiccup Delay Timer
- Programmable Soft-Start
- Precision 5-V Reference Output
- Current Sense Leading Edge Blanking
- Resistor Programmed 2-MHz Capable Oscillator
- Oscillator Synchronization Capability With Low-Frequency Lockout Protection
- 16-Pin TSSOP
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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LM25037/-Q1 Dual-Mode PWM Controller With Alternating Outputs datasheet (Rev. E) | PDF | HTML | 2016/1/15 | ||
| 應用說明 | Designing High Voltage Power Supply for Ultrasound Smart Probes (Rev. A) | PDF | HTML | 2023/5/16 | |||
| 應用說明 | Topology Selection for Isolated Power Supplies in Patient Monitor (Rev. A) | PDF | HTML | 2020/9/2 | |||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | An Alternative Approach to Higher-Power Boost Converters | 2009/11/30 |
設計與開發
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LM25037EVAL — 適用於具有交流輸出的 LM25037 雙 PWM 控制器的評估板
LM25037 評估板旨在為設計工程師提供基於推拉拓撲結構的全功能電源轉換器，以評估 LM25037 控制器。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 16 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。