开关控制器 Secondary Side Post Reg/Syn Buck
The LM5115A controller contains all of the features necessary to produce multiple tracking outputs using the Secondary Side Post Regulation SSPR technique. The SSPR technique develops a highly efficient and well regulated auxiliary output from the secondary side switching waveform of an isolated power converter. LM5115A can be also used as a standalone DC/DC synchronous buck controller Refer to section. Regulation of the auxiliary output voltage is achieved by leading edge pulse width modulation PWM of the main channel duty cycle. Leading edge modulation is compatible with either current mode or voltage mode control of the main output. The LM5115A drives external high-side and low-side NMOS power switches configured as a synchronous buck regulator. A current sense amplifier provides overload protection and operates over a wide common mode input range. Additional features include a low dropout LDO bias regulator, error amplifier, precision reference, adaptive dead time control of the gate signals and thermal shutdown.
输出接口数 1
输出电压 0.75V ~ 13.5V
输出电流 20 A
供电电流 4 mA
调节输出数 1
输出功率 300 W
开关频率 1 MHz
占空比 85 %
输入电压Max 75 V
输入电压Min 4.5 V
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 5V ~ 7.5V
输入电压 4.5V ~ 75V
安装方式 Surface Mount
引脚数 16
封装 TSSOP-16
封装 TSSOP-16
工作温度 -40℃ ~ 125℃
产品生命周期 Active
包装方式 Tube
RoHS标准 RoHS Compliant
含铅标准 Lead Free
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LM5115AMT/NOPB TI 德州仪器 | 当前型号 | 当前型号 |
LM5115AMTX/NOPB 德州仪器 | 类似代替 | LM5115AMT/NOPB和LM5115AMTX/NOPB的区别 |