ACDC控制器
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ETA(钰泰半导体)
ACDC控制器
ETA8051
ETA8051 is a high performance peak current mode PWM controller. It integrates a 1.3Ω/700V high reliability and high stability N-channel Power Mosfet. ETA8051 employs Quasi-Resonant and frequency fold-back technique to reduce EMI and improve average efficiency and meets the latest Level VI efficiency standard with enough margins.
ETA8051 is a multi-mode QR/CCM controller. In full load conditions, ETA8051 can work in both CCM mode and DCM mode to meet different types of applications. Quasi-Resonant (QR) function works all the time in DCM modes. Its burst mode operation enables low standby power with small output voltage ripple. And it achieves very low standby power, good dynamic response and accurate voltage regulation with an opto-coupler and the secondary side control circuit.
With build-in fast start process, ETA8051 can get output voltage very short rise time even with a big capacitive load. And a soft start circuit keeps output voltage no overshoot at power up.
ETA8051 integrates comprehensive protection. In case of over temperature, input/output over voltage, winding short, current sense resistor short, over load and over current and output short conditions, it would enter into auto restart if recovering from fault mode. Cycle-by-Cycle current limiting ensures safe operation even during fault mode and recovering.
ETA8051 is for applications up to 15 Watts.
FEATURES
Integrated 1.3Ω/700V high voltage N-channel Power Mosfet
Quasi-Resonant and CCM Operation
7-37V VCC Widely Operation Voltage Range
Built-in Adjustable Line Compensation
Current Sense Resistor Short Protection
Transformer Winding Short Protection
Integrates Comprehensive Protection
Built-in Soft-Start and Fast-Start Circuit
Very Low Standby Power Consumption
Complies with DOE VI and CEC V5 Average Efficiency Standards
Standard SOP-7 Package
APPLICATIONS
Smart Power Meters
Conventional Adapter
System Standby Powers
Replacements for linear transformers and RCC SMPS
需要样品测试或详细资料请联系：18126521362（点击复制微信号）
