ZHCSIB2B December 2017 – October 2019 UCC28064A
PRODUCTION DATA.
- 1 特性
- 2 應(yīng)用
- 3 說明
- 4 修訂歷史記錄
- 5 說明 （續(xù)）
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Principles of Operation
- 8.3.2 Natural Interleaving
- 8.3.3 On-Time Control, Maximum Frequency Limiting, Restart Timer and Input Voltage Feed-Forward compensation
- 8.3.4 Distortion Reduction
- 8.3.5 Zero-Current Detection and Valley Switching
- 8.3.6 Phase Management and Light-Load Operation
- 8.3.7 Burst Mode Operation
- 8.3.8 External Disable
- 8.3.9 Improved Error Amplifier
- 8.3.10 Soft Start
- 8.3.11 Brownout Protection
- 8.3.12 Line Dropout Detection
- 8.3.13 VREF
- 8.3.14 VCC
- 8.3.15
System Level Protections
- 8.3.15.1 Failsafe OVP - Output Over-voltage Protection
- 8.3.15.2 Overcurrent Protection
- 8.3.15.3 Open-Loop Protection
- 8.3.15.4 VCC Undervoltage Lock-Out (UVLO) Protection
- 8.3.15.5 Phase-Fail Protection
- 8.3.15.6 CS - Open, TSET - Open and Short Protection
- 8.3.15.7 Thermal Shutdown Protection
- 8.3.15.8 Fault Logic Diagram
- 8.4 Device Functional Modes
-
9 Application and Implementation
- 9.1 Application Information
- 9.2
Typical Application
- 9.2.1 Design Requirements
- 9.2.2
Detailed Design Procedure
- 9.2.2.1 Custom Design With WEBENCH® Tools
- 9.2.2.2 Inductor Selection
- 9.2.2.3 ZCD Resistor Selection RZA, RZB
- 9.2.2.4 HVSEN
- 9.2.2.5 Output Capacitor Selection
- 9.2.2.6 Selecting RS For Peak Current Limiting
- 9.2.2.7 Power Semiconductor Selection (Q1, Q2, D1, D2)
- 9.2.2.8 Brownout Protection
- 9.2.2.9 Converter Timing
- 9.2.2.10 Programming VOUT
- 9.2.2.11 Voltage Loop Compensation
- 9.2.3 Application Curves
- 10Power Supply Recommendations
- 11Layout
- 12Package Option Addendum
- 13器件和文檔支持
- 14機(jī)械、封裝和可訂購信息
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- D|16
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
訂購信息
7.6 Typical Characteristics
VVCC = 16 V, VAGND = VPGND = 0 V, VVINAC = 3 V, VVSENSE = 6 V, VHVSEN = 3 V, VPHB = 0 V, RTSET = 133 kΩ; all voltages are with respect to GND, all outputs unloaded, TJ = 25°C, and currents are positive into and negative out of the specified terminal, unless otherwise noted.
| CLOAD = 4.7 nF | ||
| CLOAD = 4.7 nF | |||
| Soft-start period completed |
| CLOAD = 4.7 nF | ||
| CLOAD = 4.7 nF | ||