1、2022-6-7BEL training seminar1半導體元器件介紹及選擇半導體元器件介紹及選擇Prepared By: May ChenDate:2009-7-15選擇器件基本要點電氣性能封裝 功耗工作溫度及電性能隨溫度的變化器件離散性無鉛器件優(yōu)選BEL庫中已有器件首選廠家 Project filesMaster BomKey Components listProject filesMaster BomBel Power Preferred Vendor List-2008.xls選擇器件基本要點常用半導體器件種類 Diode Zener Transistor Mosfet OPTO-

2、Coupler Logic component OP-AMPComparator PWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator Diode 介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator Diode 介紹關鍵電氣性能

3、參數(shù)：正向壓降 VF正向電流 IF反向壓降 VR反向恢復時間 Trr反向恢復電荷 Qrr功耗Diode 介紹應用場合：副邊整流管輔助源信號回路驅(qū)動回路Diode 介紹Zener 介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator Zener 介紹關鍵電氣性能參數(shù)：反向穩(wěn)定壓降 VZ反向電流 IZT正向壓降 VF正向電流 IF功耗應用

4、場合：輔助源驅(qū)動回路Zener 介紹常用封裝：SOD系列及SOT-23Zener 介紹Transistor 介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator Transistor 介紹關鍵電氣性能參數(shù)：NPN管or PNP管集電級發(fā)射級擊穿電壓 Vceo集電級電流 Ic功耗集電級發(fā)射級飽和電壓 VCE(sat)集電極漏電流頻率特性

5、Transistor 介紹應用場合：輔助源信號回路功率計算公式：P = Vbe * Ib + Vce * IcMosfet 介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator Mosfet 介紹關鍵電氣性能參數(shù)：P溝道管or N溝道管漏源級擊穿電壓 VDS門級漏級擊穿電壓 VGS漏源級飽和導通電阻 RDS(on)漏級電流 ID功耗門

6、級電荷 QgOPTO-Coupler介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator OPTO-Coupler介紹關鍵電氣性能參數(shù)：變換比例 CTR集電級發(fā)射級電壓 Vceo二極管正向?qū)娏?IF功耗溫度原副邊隔離電壓 VISOOPTO-Coupler介紹應用場合：原副邊信號傳遞常用封裝： SOP-4Logic componen

7、t介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator Logic component介紹關鍵電氣性能參數(shù)：邏輯關系 Function Table供電電壓輸出電壓范圍 常用封裝：MICORPAK8、SC70-5、SOT353-5、US8OP-AMP介紹 Diode Zener Transistor Mosfet OPTO-Couple

8、r Logic component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator OP-AMP介紹關鍵電氣性能參數(shù)：供電電壓頻率特性 帶寬輸出電壓范圍 增益 m、Gm轉(zhuǎn)換速度 SROP-AMP介紹應用場合：反饋回路誤差信號放大用作比較器電路用作保護電路常用封裝：MSO-8、SC70-5、SO-8、SOT23-5、TSSOP-14Comparator介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic

9、 component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator Comparator介紹關鍵電氣性能參數(shù)：供電電壓輸出電壓范圍 功耗常用封裝：MSO-8，SC70-5，SO-8，SOT23-5，TSSOP-14PWM Controller介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microcontro

10、ller Driver Voltage Referance LDO Frequency Generator PWM Controller介紹關鍵電氣性能參數(shù)：供電電壓應用于哪一類電路拓撲閉環(huán)調(diào)節(jié)原理集成哪些保護功能 是否集成驅(qū)動功能是否可編程、可通訊Microcontroller介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator M

11、icrocontroller介紹關鍵電氣性能參數(shù)：I/O端口數(shù)量PWM波輸出存儲器大小比較器數(shù)量 常用封裝：QFN系列、SO-8、SOT23-6、TSSOP-14、SSOP20Driver介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator Driver介紹關鍵電氣性能參數(shù)：供電電壓應用于哪一類電路拓撲驅(qū)動電流、驅(qū)動電阻驅(qū)動邏輯靜態(tài)損

12、耗功耗Voltage Referance介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microcontroller Driver Voltage Referance LDO Frequency Generator Voltage Referance介紹關鍵電氣性能參數(shù)：穩(wěn)定電壓陰極電壓 VZ陰極持續(xù)電流 IZ功耗 調(diào)節(jié)精度常用封裝： SOT系列LDO介紹 Diode Zener Transistor Mosfet OPTO-Coupler Logic component OP-AMP ComparatorPWM Controller Microc