LINEAR TECHNOLOGY LT1244CS8#PBF 控制器, PWM, 25V-12V电源, 500 kHz, 5V/200mA输出, SOIC-8
The is a high speed current-mode Pulse Width Modulator, an improved plug compatible versions of the industry standard UC1842 series. It has both improved speed and lower quiescent current. The LT1241 series is optimized for off-line and DC/DC converter applications. It contains a temperature-compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output stage ideally suited to driving power MOSFETs. Start-up current has been reduced to less than 250µA. Cross-conduction current spikes in the output stage have been eliminated, making 500kHz operation practical. Several new features have been incorporated. Leading edge blanking has been added to the current sense comparator. Trims have been added to the oscillator circuit for both frequency and sink current and both of these parameters are tightly specified. The output stage is clamped to a maximum VOUT of 18V in the on-state.
频率 500 kHz
电源电压DC 12.0V min
输出接口数 1
输入电压DC 15.0 V
输出电压 5 V
输出电流 200 mA
针脚数 8
耗散功率 1 W
静态电流 170 µA
上升时间 50 ns
开关频率 500kHz MAX
占空比 48 %
输出电流Max 1 A
最大占空比 48 %
下降时间 30 ns
工作温度Max 100 ℃
工作温度Min 0 ℃
耗散功率Max 1000 mW
电源电压 11V ~ 25V
电源电压Max 25 V
电源电压Min 12 V
输入电压 15 V
安装方式 Surface Mount
引脚数 8
封装 SOIC-8
高度 1.5 mm
封装 SOIC-8
工作温度 0℃ ~ 100℃
产品生命周期 Unknown
包装方式 Each
制造应用 Industrial, 工业
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC标准 No SVHC
REACH SVHC版本 2015/12/17
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
LT1244CS8#PBF Linear Technology 凌力尔特 | 当前型号 | 当前型号 |
UC3845BN 意法半导体 | 类似代替 | LT1244CS8#PBF和UC3845BN的区别 |
LT1244CS8#TRPBF 凌力尔特 | 类似代替 | LT1244CS8#PBF和LT1244CS8#TRPBF的区别 |
UC2843BD1R2G 安森美 | 功能相似 | LT1244CS8#PBF和UC2843BD1R2G的区别 |