改进的电流模式 PWM 控制器
The UC2856 is a high performance version of the popular UC2846 series of current mode controllers, and is intended for both design upgrades and new applications where speed and accuracy are important. All input to output delays have been minimized, and the current sense output is slew rate limited to reduce noise sensitivity. Fast 1.5-A peak output stages have been added to allow rapid switching of power FETs.
A low impedance TTL compatible sync output has been implemented with a 3-state function when used as a sync input.
Internal chip grounding has been improved to minimize internalOther features include a trimmed oscillator current 8% for accurate frequency and dead time control; a 1 V, 5% shutdown threshold; and 4 kV minimum ESD protection on all pins.
Outputs and 50-ns Typical Delay From
Sync to Outputs
Reduced Noise Sensitivity
Common Mode Range
Accurate Deadband Control
Outputs 1.5-A peak
Thresholds
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
UC2856Q TI 德州仪器 | 当前型号 | 当前型号 |
UC2856DWTR 德州仪器 | 功能相似 | UC2856Q和UC2856DWTR的区别 |
UC3856DWTR 德州仪器 | 功能相似 | UC2856Q和UC3856DWTR的区别 |
UC3856DWTRG4 德州仪器 | 功能相似 | UC2856Q和UC3856DWTRG4的区别 |