UCC3570N - 

制造商：

TEXAS INSTRUMENTS TEXAS INSTRUMENTS

制造商产品编号：

UCC3570N

仓库库存编号：

1755684

技术数据表：

(EN)

The UCC3570N is a Pulse Width Modulation (PWM) Controller intended for application in isolated switching supplies using primary side control and a voltage mode feedback loop. Made with a BiCMOS process, these devices feature low startup current for efficient off-line starting with a bootstrapped low voltage supply. Operating current is also very low; yet these devices maintain the ability to drive a power MOSFET gate at frequencies above 500kHz. Voltage feed forward provides fast and accurate response to wide line voltage variation without the noise sensitivity of current-mode control. Fast current limiting is included with the ability to latch off after a programmable number of repetitive faults have occurred. This allows the power supply to ride through a temporary overload, while still shutting down in the event of a permanent fault.

• Voltage feed forward compensation
• Programmable duty cycle clamp
• Optocoupler interface
• Soft-start
• Fault counting shutdown
• Fault latch off or automatic restart
• 85uA Start-up current
• 1mA Run current
• 1A Peak gate drive output

参考价格及参考库存