ZHCSHN1A
August 2017 – February 2018
UCC24612
PRODUCTION DATA.
1
特性
2
应用
3
说明
Device Images
具有高侧 SR 的反激式
具有低侧 SR 的反激式
4
修订历史记录
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements
6.7
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Power Management
7.3.2
Synchronous Rectifier Control
7.3.3
Adaptive Blanking Time
7.3.3.1
Turn-On Blanking Timer (Minimum On Time)
7.3.3.2
Turn-Off Blanking Timer
7.3.3.3
SR Turn-on Re-arm
7.3.4
Gate Voltage Clamping
7.3.5
Standby Mode
7.4
Device Functional Modes
7.4.1
UVLO Mode
7.4.2
Standby Mode
7.4.3
Run Mode
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
SR MOSFET Selection
8.2.2.2
Bypass Capacitor Selection
8.2.2.3
Snubber design
8.2.2.4
High-Side Operation
8.2.3
Application Curves
8.2.3.1
Steady State Testing Low-Side Configuration
8.2.3.2
Steady State Testing High-Side Configuration
9
Power Supply Recommendations
10
PCB Layout
10.1
Layout Guidelines
10.2
Layout Example
11
器件和文档支持
11.1
社区资源
11.2
商标
11.3
静电放电警告
11.4
Glossary
12
机械、封装和可订购信息
封装选项
机械数据 (封装 | 引脚)
DBV|5
MPDS018T
散热焊盘机械数据 (封装 | 引脚)
订购信息
zhcshn1a_oa
1
特性
支持有源钳位反激式、QR、DCM、CCM 反激式和 LLC 等各种拓扑
MOSFET V
DS
感应高达 230V
工作频率高达 1MHz
UCC24612-1 为 1MHz
UCC24612-2 为 800kHz
宽 VDD 范围允许从 5V 至 28V 输出系统的直接偏置
具有比例栅极驱动器的 4A 灌电流、1A 拉电流栅极驱动器
自适应最短关闭时间,可提高抗噪能力
循环极限预关闭可提高 CCM 效率
高侧或低侧可配置
实现自动轻负载和睡眠模式管理,待机电流为 320µA
16ns 典型关闭传播延迟
9.5V 栅极驱动器钳位,可减少驱动损耗