UCC25706

所属类别：ACDC-和-DCDC-电源
产品名称：高速电压模式脉宽调制器
厂商：TI
生产批号：08+
封装：8MSOP, 8PDIP, 8SOIC
库存状态：有库存
库存量：6000
最低订购量：1
详细资料：

Product Introduction

The UCC35705 and UCC35706 devices are the main terminal controllers with 8-pin voltage mode and fast overcurrent protection. These devices are the core of high-speed, high-performance isolated and non-isolated power converters.

The UCC35705/UCC35706 device features an integrated feedforward compensation to improve the converter's performance with a high-speed oscillator. A typical current-sense output delay time of 25 ns provides a fast response to overload cases. The IC also provides an accurate increase in protection that can also be used for disabled operation of the oscillator at the maximum possible maximum duty cycle programmable duty cycle clamp position.

Two UVLO options are available: The lower on-voltage is deliberately UCC35705 for DC-to-DC converters, while the higher on-voltage and wider undervoltage lockout range UCC35706 are ideal for better off-line applications.

characteristic

Greater than 4 - MHz operation
Integrated oscillator/voltage feedforward compensation
> 4:1 input voltage range
25 - ns current limit delay
Programmable maximum duty cycle clamping
Optocoupler interface
50μA start-up current
4.2 mA operating current @ 1 MHz
The smallest 8-pin MSOP package size is minimized
Board area and height

parameter

	UCC25706
topology	Boost, reverse, forward
Control method	Voltage mode
Duty Cycle (Max) (%)	93
Frequency (max) (kHz)	4000
On/off of undervoltage lockout threshold (5)	12 / 8
Pin/Pack	8MSOP，8PDIP，8SOIC
(#) Regulated output	One
Operating Temperature Range (°C)	-40 to 85

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UCC25706

parameter

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