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
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM25037/-Q1 Dual-Mode PWM Controller With Alternating Outputs datasheet (Rev. E) | PDF | HTML | 2016年 1月 15日 |
| White paper | Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) | PDF | HTML | 2024年 4月 30日 | |
| Application note | Designing High Voltage Power Supply for Ultrasound Smart Probes (Rev. A) | PDF | HTML | 2023年 5月 16日 | |
| Application note | Topology Selection for Isolated Power Supplies in Patient Monitor (Rev. A) | PDF | HTML | 2020年 9月 2日 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| EVM User's guide | AN-1861 LM25037 Evaluation Board (Rev. C) | 2013年 5月 5日 | ||
| Application note | An Alternative Approach to Higher-Power Boost Converters | 2009年 11月 30日 |
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
The LM25037 evaluation board is designed to provide the design engineer with a fully functional power converter based on push-pull topology to evaluate the LM25037 controller.
| 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
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點