UCC38050

所属类别：ACDC-和-DCDC-电源
产品名称：转换模式 PFC 控制器
厂商：TI
生产批号：10+
封装：8PDIP, 8SOIC
库存状态：有库存
库存量：40000
最低订购量：1
详细资料：

Product Introduction

UCC38050 UCC38051 are PFC controllers for low to medium power applications that require conformance to IEC 1000-3-2 harmonic suppression standards. It is designed to control a business mode in transition with a boost preconditioner (also known as boundary conduction mode or critical conduction mode operation). It employs a feedback error handling, a transconductance amplifier, a simple voltage generation current instruction proportional to the input voltage, a multiplier, a current detector (PWM) comparator, PWM logic, and a totem pole driver for driving external FETs.

In transition mode operation, the PWM circuit self-oscillates and conducts by an inductor zero current detector (ZCD PIN) and shutdown by the current sense comparator.

characteristic

Low conversion mode PFC controller
Cost in the implementation stage
Industrial compatible with improved pins
Feature set
Improved transient response
Comparison of swing rates
Prevents overvoltage protection during zero power detection
Light load conditions
Accurate and strict output internal V-number
Regulations
Two UVLO options:
Overvoltage Protection (OVP)
Feedback open circuit protection and enablement
circuit
± 750 mA peak gate drive current
Low start-up and operating current
Lead-free (Pb) - Lead-free package
apply
- desktop switch-mode power supply,
  Monitors, TVs, and set-top boxes (set-top boxes)
- AC adapter front-end power supply
- Electronic ballast

parameter


On/off of undervoltage lockout threshold (5)
Working power supply (max) (five)
Starting Current (mA)
Operating Supply Current (mA)
Actual operating frequency (max) (MHz)
Pin/Pack

UCC38050-related ICs include:

Model	Manufacturers	lot number	encapsulation	illustrate
UCC38050	TI	10+	8PDIP, 8SOIC	Conversion mode PFC controller
UCC38050D	TI	0739+	SOIC-8

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UCC38050

parameter

UCC38050-related ICs include:

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