ZHCSFM4B september 2016 – december 2021 UCC21521
PRODUCTION DATA
- 1 特性
- 2 應(yīng)用
- 3 說(shuō)明
- 4 Revision History
- 5 Pin Configuration and Functions
-
6 Specifications
- 6.1 Absolute Maximum Ratings
- 6.2 ESD Ratings
- 6.3 Recommended Operating Conditions
- 6.4 Thermal Information
- 6.5 Power Ratings
- 6.6 Insulation Specifications
- 6.7 Safety-Related Certifications
- 6.8 Safety-Limiting Values
- 6.9 Electrical Characteristics
- 6.10 Switching Characteristics
- 6.11 Insulation Characteristics Curves
- 6.12 Typical Characteristics
- 7 Parameter Measurement Information
- 8 Detailed Description
-
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 Designing INA/INB Input Filter
- 9.2.2.2 Select External Bootstrap Diode and its Series Resistor
- 9.2.2.3 Gate Driver Output Resistor
- 9.2.2.4 Gate to Source Resistor Selection
- 9.2.2.5 Estimate Gate Driver Power Loss
- 9.2.2.6 Estimating Junction Temperature
- 9.2.2.7 Selecting VCCI, VDDA/B Capacitor
- 9.2.2.8 Dead Time Setting Guidelines
- 9.2.2.9 Application Circuits with Output Stage Negative Bias
- 9.2.3 Application Curves
- 10Power Supply Recommendations
- 11Layout
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DW|16
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
- DW|16
訂購(gòu)信息
3 說(shuō)明
UCC21521 是一款隔離式雙通道柵極驅(qū)動(dòng)器，具有 4A 峰值拉電流和 6A 峰值灌電流。該器件設(shè)計(jì)用于驅(qū)動(dòng)高達(dá) 5MHz 的功率 MOSFET、IGBT 和 SiC MOSFET，具有一流的傳播延遲和脈寬失真度。
輸入側(cè)通過(guò)一個(gè) 5.7kVRMS 增強(qiáng)型隔離層與兩個(gè)輸出驅(qū)動(dòng)器隔離，共模瞬態(tài)抗擾度 (CMTI) 的最小值為 100V/ns。兩個(gè)二次側(cè)驅(qū)動(dòng)器之間采用內(nèi)部功能隔離，支持高達(dá) 1500 VDC 的工作電壓。
每個(gè)驅(qū)動(dòng)器可配置為兩個(gè)低側(cè)驅(qū)動(dòng)器、兩個(gè)高側(cè)驅(qū)動(dòng)器或一個(gè)死區(qū)時(shí)間 (DT) 可編程的半橋驅(qū)動(dòng)器。EN 引腳拉低時(shí)會(huì)同時(shí)關(guān)閉兩個(gè)輸出，懸空或拉高時(shí)可使器件恢復(fù)正常運(yùn)行。作為一種失效防護(hù)機(jī)制，初級(jí)側(cè)邏輯故障會(huì)強(qiáng)制兩個(gè)輸出為低電平。
此器件接受高達(dá) 25V 的 VDD 電源電壓。3V 到 18V 的寬輸入電壓 VCCI 范圍使得該驅(qū)動(dòng)器適用于連接數(shù)字和模擬控制器。所有電源電壓引腳都具有欠壓鎖定 (UVLO) 保護(hù)功能。
憑借所有這些高級(jí)特性，UCC21521 能夠滿足各類電源應(yīng)用中對(duì)于高效率、高電源密度和穩(wěn)健性的需求。
| 器件型號(hào) | 封裝 | 封裝尺寸（標(biāo)稱值） |
|---|---|---|
| UCC21521ADW | DW SOIC (16) | 10.30mm x 7.50mm |
| UCC21521DW | DW SOIC (16) | 10.30mm x 7.50mm |
| UCC21521CDW | DW SOIC (16) | 10.30mm x 7.50mm |
功能方框圖