TEXAS INSTRUMENTS TL3843D-8 控制器, PWM, 25V-12V电源, 500 kHz, 30V/200mA输出, SOIC-8
The is a current-mode Pulse Width Modulation PWM Controller integrated provides the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. Some of the internally implemented circuits are an under voltage lockout UVLO, featuring a start-up current of less than 1mA and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation PWM comparator that also provides current-limit control and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state.
频率 500 kHz
电源电压DC 12.0V min
输出接口数 1
输入电压DC 5.50 V
输出电压 0V ~ 30V
输出电流 200 mA
供电电流 25 mA
针脚数 8
调节输出数 1
上升时间 50 ns
开关频率 500 kHz
拓扑结构 Boost, Flyback, Forward
占空比 100 %
最大占空比 97 %
下降时间 50 ns
工作温度Max 70 ℃
工作温度Min 0 ℃
电源电压 7.6V ~ 30V
电源电压Max 25 V
电源电压Min 12 V
输入电压 5.5 V
安装方式 Surface Mount
引脚数 8
封装 SOIC-8
封装 SOIC-8
工作温度 0℃ ~ 70℃
产品生命周期 Active
包装方式 Tube
制造应用 工业, 电源管理
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC标准 No SVHC
REACH SVHC版本 2015/06/15
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
TL3843D-8 TI 德州仪器 | 当前型号 | 当前型号 |
TL2843DR-8 德州仪器 | 完全替代 | TL3843D-8和TL2843DR-8的区别 |
TL2843P 德州仪器 | 完全替代 | TL3843D-8和TL2843P的区别 |