资料下载
×
LM5027,pdf datasheet (Voltage
消耗积分:2 |
格式:rar |
大小:550 |
2009-10-06
马占云
分享资料个
The LM5027 pulse-width modulation (PWM) controller contains
all of the features necessary to implement power converters
utilizing the Active Clamp / Reset technique. With the
active clamp technique, higher efficiencies and greater power
densities can be realized compared to conventional catch
winding or RDC clamp / reset techniques. Three control outputs
are provided: the main power switch control (OUTA), the
active clamp switch control (OUTB), and secondary side synchronous
rectifier control (OUTSR). The timing between the
control outputs is adjustable with external resistors that program
internal precision timers. This controller is designed for
high-speed operation including an oscillator frequency range
up to 1 MHz and total PWM propagation delays less than 50
ns. The LM5027 includes a high-voltage startup regulator with
a maximum input voltage rating of 105V. Additional features
include Line Under Voltage Lockout (UVLO), separate softstart
of main and synchronous rectifier outputs, a timer for
hiccup mode current limiting, a precision reference, and thermal
shutdown.
all of the features necessary to implement power converters
utilizing the Active Clamp / Reset technique. With the
active clamp technique, higher efficiencies and greater power
densities can be realized compared to conventional catch
winding or RDC clamp / reset techniques. Three control outputs
are provided: the main power switch control (OUTA), the
active clamp switch control (OUTB), and secondary side synchronous
rectifier control (OUTSR). The timing between the
control outputs is adjustable with external resistors that program
internal precision timers. This controller is designed for
high-speed operation including an oscillator frequency range
up to 1 MHz and total PWM propagation delays less than 50
ns. The LM5027 includes a high-voltage startup regulator with
a maximum input voltage rating of 105V. Additional features
include Line Under Voltage Lockout (UVLO), separate softstart
of main and synchronous rectifier outputs, a timer for
hiccup mode current limiting, a precision reference, and thermal
shutdown.
声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
评论(0)
发评论
- 相关下载
- 相关文章
