LM5041
- Internal Start-up Bias Regulator
- Programmable Line Under-Voltage Lockout (UVLO) with Adjustable Hysteresis
- Current Mode Control
- Internal Error Amplifier with Reference
- Dual Mode Over-Current Protection
- Leading Edge Blanking
- Programmable Push-Pull Overlap or Dead Time
- Internal 1.5A Push-Pull Gate Drivers
- Programmable Soft-start
- Programmable Oscillator with Sync Capability
- Precision Reference
- Thermal Shutdown
Packages
- TSSOP-16
- WSON-16 (5x5 mm) Thermally Enhanced
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The LM5041 PWM controller contains all of the features necessary to implement either current-fed or voltage-fed push-pull or bridge power converters. These “Cascaded” topologies are well suited for multiple output and higher power applications. The LM5041’s four control outputs include: the buck stage controls (HD and LD) and the push-pull control outputs (PUSH and PULL). Push-pull outputs are driven at 50% nominal duty cycle at one half of the switching frequency of the buck stage and can be configured for either a specified overlap time (for current-fed applications) or a specified both-off time (for voltage-fed applications). Push-pull stage MOSFETs can be driven directly from the internal gate drivers while the buck stage requires an external driver such as the LM5102. The LM5041 includes a high-voltage start-up regulator that operates over a wide input range of 15V to 100V. The PWM controller is designed for high-speed capability including an oscillator frequency range up to 1 MHz and total propagation delays of less than 100ns. Additional features include: line Under-Voltage Lockout (UVLO), soft-start, an error amplifier, precision voltage reference, and thermal shutdown.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LM5041 Cascaded PWM Controller 数据表 (Rev. D) | 2013年 3月 25日 | |||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
EVM 用户指南 | AN-1299 LM5041 Evaluation Board (Rev. A) | 2013年 5月 6日 | ||||
应用手册 | DC - DC Converter Featuring the Cascaded Power Converter Topology | 2007年 3月 21日 | ||||
白皮书 | Communications System Power Supply Designs | 2004年 1月 1日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
封装 | 引脚 | 下载 |
---|---|---|
TSSOP (PW) | 16 | 查看选项 |
WSON (NHQ) | 16 | 查看选项 |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点