The LM5022 device is a high-voltage, low-side, N-channel MOSFET controller ideal for use in boost and SEPIC regulators. It contains all of the features required to implement single-ended primary topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent input voltage feedforward. The LM5022 includes a start-up regulator that operates over a wide input range of 6 V to 60 V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 2.2 MHz and total propagation delays less than 100 ns. Additional features include an error amplifier, precision reference, line undervoltage lockout, cycle-by-cycle current limit, slope compensation, soft start, external synchronization capability, and thermal shutdown. The LM5022 is available in the 10-pin VSSOP package.
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LM5022 60-V Low-Side Controller for Boost and SEPIC datasheet (Rev. J) | PDF | HTML | 2018年 5月 21日 |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Technical article | What is behind isolated DC/DC converter voltage regulation? | PDF | HTML | 2015年 8月 31日 | |
| White paper | How to design boost, SEPIC or flyback regulators with wide VIN power ICs | 2014年 7月 29日 | ||
| Application note | Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co | 2014年 7月 11日 | ||
| EVM User's guide | AN-1557 LM5022 Evaluation Board (Rev. C) | 2013年 5月 6日 | ||
| EVM User's guide | AN-1605 LM5022 Boost LED Driver Evaluation Board (Rev. A) | 2013年 5月 6日 | ||
| Application note | AN-1696 Designing a Boost LED Driver Using the LM5022 (Rev. B) | 2013年 5月 6日 | ||
| Application note | AN-1656 Design Challenges of Switching LED Drivers (Rev. A) | 2013年 5月 3日 |
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The LM5022EVM evaluation module (EVM) is a fixed frequency (500-kHz) non-synchronous boost converter providing fixed 40.0-V output at up to 500 mA from a 9-V to 16-V input. The EVM is designed to start up from a single supply, with no additional bias voltage required for start-up. The module uses (...)
This tool helps a power supply engineer to select the right isolated DC-DC topology based on the specifications. Depending on the topology chosen, the calculator also recommends the right IC for the design.
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSSOP (DGS) | 10 | Ultra Librarian |