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LTC3900ES8

更新时间： 2024-01-22 17:42:40
品牌 Logo 应用领域
凌特 - Linear 驱动器
页数 文件大小 规格书
12页 200K
描述
Synchronous Rectifier Driver for Forward Converters

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中文翻译

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LTC3900ES8 技术参数

是否Rohs认证： 不符合生命周期：Active
包装说明：SOP,Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.11模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE最大输入电压：11 V
最小输入电压：4.5 V标称输入电压：5 V
JESD-30 代码：R-PDSO-G8JESD-609代码：e0
长度：4.9025 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：
最大输出电流：2 A封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：255
认证状态：Not Qualified座面最大高度：1.752 mm
表面贴装：YES切换器配置：PUSH-PULL
温度等级：Commercial Extended端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：40
宽度：3.899 mmBase Number Matches：1

LTC3900ES8 数据手册

 浏览型号LTC3900ES8的Datasheet PDF文件第2页浏览型号LTC3900ES8的Datasheet PDF文件第3页浏览型号LTC3900ES8的Datasheet PDF文件第4页浏览型号LTC3900ES8的Datasheet PDF文件第5页浏览型号LTC3900ES8的Datasheet PDF文件第6页浏览型号LTC3900ES8的Datasheet PDF文件第7页 
Final Electrical Specifications  
LTC3900  
Synchronous Rectifier  
Driver for Forward Converters  
November 2003  
U
DESCRIPTIO  
FEATURES  
The LTC®3900 is a secondary-side synchronous rectifier  
driver designed to be used in isolated forward converter  
power supplies. The chip drives N-channel rectifier  
MOSFETs and accepts pulse sychronization from the  
primary-side controller via a pulse transformer.  
■
N-Channel Synchronous Rectifier MOSFET Driver  
■
Programmable Timeout  
■
Reverse Inductor Current Sense  
■
Pulse Transformer Synchronization  
■
Wide VCC supply range: 4.5V to 11V  
■
15ns Rise/Fall Times at VCC = 5V, CL = 4700pF  
TheLTC3900incorporatesafullrangeofprotectionforthe  
external MOSFETs. A programmable timeout function is  
included that disables both drivers when the synchroniza-  
tion signal is missing or incorrect. Additionally, the chip  
senses the output inductor current through the drain-  
source resistance of the catch MOSFET, shutting off the  
MOSFET if the inductor current reverses. The LTC3900  
also shuts off the drivers if the supply voltage is low.  
■
Undervoltage Lockout  
■
Small SO-8 PackUage  
APPLICATIO S  
■
48V Input Isolated DC/DC Converters  
■
Isolated Telecom Power Supplies  
■
Distributed Power Step-Down Converters  
■
Industrial Control System Power Supplies  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
■
Automotive and Heavy Equipment  
U
TYPICAL APPLICATIO  
ISOLATION  
BARRIER  
L0  
Z
V
V
OUT  
3.3V  
IN  
36V TO 72V  
+
D3  
C
OUT  
BG  
T1  
C
R
Z
Q
REG  
R
Q1  
CS2  
R
Z
B
R
D
CS1  
Q3  
+
CS  
LTC1693-2  
CG  
Q4  
V
CC  
–
CS  
R
TMR  
R
LTC3900  
CS3  
C
TIMER  
VCC  
FG  
C
SG  
C
TMR  
SYNC  
LTC1693-2  
GND  
GATE  
T2  
SG  
R
SYNC  
R1  
C
F
LT1950  
FORWARD CONTROLLER  
R
F
270Ω  
GND COMP  
–
+
R2  
LT1797  
V
R
3900 F01  
OC1  
Figure 1. Simplified Isolated Forward Converter  
3900i  
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.  
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-  
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.  
1
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中文翻译

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LTC3900ES8 替代型号

型号 品牌 替代类型 描述 数据表
LTC3900IS8#PBF Linear

完全替代

 LTC3900 - Synchronous Rectifier Driver for Forward Converters; Package: SO; Pins: 8; Tempe
LTC3900ES8#PBF Linear

完全替代

 LTC3900 - Synchronous Rectifier Driver for Forward Converters; Package: SO; Pins: 8; Tempe

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LTC3900ES8#PBF Linear

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 		LTC3900 - Synchronous Rectifier Driver for Forward Converters; Package: SO; Pins: 8; Tempe
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LTC3900HS8#PBF Linear

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 		LTC3900 - Synchronous Rectifier Driver for Forward Converters; Package: SO; Pins: 8; Tempe
LTC3900HS8#TR Linear

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 		IC SWITCHING REGULATOR, PDSO8, PLASTIC, SOP-8, Switching Regulator or Controller
LTC3900HS8#TRPBF Linear

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 		LTC3900 - Synchronous Rectifier Driver for Forward Converters; Package: SO; Pins: 8; Tempe
LTC3900IS8#PBF Linear

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 		LTC3900 - Synchronous Rectifier Driver for Forward Converters; Package: SO; Pins: 8; Tempe
LTC3900MPS8 Linear

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 		IC SWITCHING REGULATOR, PDSO8, PLASTIC, SOP-8, Switching Regulator or Controller
LTC3900MPS8#TR Linear

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 		IC SWITCHING REGULATOR, PDSO8, PLASTIC, SOP-8, Switching Regulator or Controller
LTC3900MPS8#TRPBF Linear

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 		LTC3900 - Synchronous Rectifier Driver for Forward Converters; Package: SO; Pins: 8; Tempe
LTC3901 Linear

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 		Secondary Side Synchronous Driver for Push-Pull and Full-Bridge Converters

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