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LM27222M PDF预览

LM27222M

更新时间： 2024-10-28 02:58:51
品牌 Logo 应用领域
德州仪器 - TI 驱动光电二极管接口集成电路驱动器
页数 文件大小 规格书
16页 843K
描述
LM27222 High-Speed 4.5A Synchronous MOSFET Driver

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LM27222M 技术参数

生命周期：Not Recommended零件包装代码：SOIC
包装说明：SOP, SOP8,.25针数：8
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.15Samacsys Confidence：3
Samacsys Status：ReleasedSamacsys PartID：588835
Samacsys Pin Count：8Samacsys Part Category：Integrated Circuit
Samacsys Package Category：Small Outline PackagesSamacsys Footprint Name：D
Samacsys Released Date：2017-01-11 19:09:53Is Samacsys：N
高边驱动器：YES接口集成电路类型：HALF BRIDGE BASED MOSFET DRIVER
JESD-30 代码：R-PDSO-G8JESD-609代码：e0
长度：4.9 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：125 °C最低工作温度：-40 °C
输出特性：TOTEM-POLE最大输出电流：4.5 A
标称输出峰值电流：3.2 A封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：235电源：5 V
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：MOSFET Drivers最大压摆率：0.825 mA
最大供电电压：7 V最小供电电压：4 V
标称供电电压：5 V表面贴装：YES
温度等级：AUTOMOTIVE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：NOT SPECIFIED
宽度：3.9 mmBase Number Matches：1

LM27222M 数据手册

 浏览型号LM27222M的Datasheet PDF文件第2页浏览型号LM27222M的Datasheet PDF文件第3页浏览型号LM27222M的Datasheet PDF文件第4页浏览型号LM27222M的Datasheet PDF文件第5页浏览型号LM27222M的Datasheet PDF文件第6页浏览型号LM27222M的Datasheet PDF文件第7页 
LM27222  
www.ti.com  
SNVS306B –SEPTEMBER 2004–REVISED MARCH 2013  
LM27222 High-Speed 4.5A Synchronous MOSFET Driver  
Check for Samples: LM27222  
1
FEATURES  
DESCRIPTION  
The LM27222 is a dual N-channel MOSFET driver  
designed to drive MOSFETs in push-pull  
configurations as typically used in synchronous buck  
regulators. The LM27222 takes the PWM output from  
a controller and provides the proper timing and drive  
levels to the power stage MOSFETs. Adaptive shoot-  
through protection prevents damaging and efficiency  
reducing shoot-through currents, thus ensuring a  
robust design capable of being used with nearly any  
MOSFET. The adaptive shoot-through protection  
circuitry also reduces the dead time down to as low  
as 10ns, ensuring the highest operating efficiency.  
The peak sourcing and sinking current for each driver  
of the LM27222 is about 3A and 4.5Amps  
respectively with a Vgs of 5V. System performance is  
also enhanced by keeping propagation delays down  
to 8ns. Efficiency is once again improved at all load  
2
•
•
•
•
•
•
•
•
•
Adaptive Shoot-through Protection  
10ns Dead Time  
8ns Propagation Delay  
30ns Minimum On-time  
0.4Ω Pull-down and 0.9Ω Pull-up Drivers  
4.5A Peak Driving Current  
MOSFET Tolerant Design  
5µA Quiescent Current  
30V Maximum Input Voltage in Buck  
Configuration  
•
•
4V to 6.85V Operating Voltage  
SOIC-8 and WSON Packages  
APPLICATIONS  
currents  
by  
supporting  
synchronous,  
non-  
synchronous, and diode emulation modes through the  
LEN pin. The minimum output pulse width realized at  
the output of the MOSFETs is as low as 30ns. This  
enables high operating frequencies at very high  
conversion ratios in buck regulator designs. To  
support low power states in notebook systems, the  
LM27222 draws only 5µA from the 5V rail when the  
IN and LEN inputs are low or floating.  
•
High Current Buck And Boost Voltage  
Converters  
•
•
•
Fast Transient DC/DC Power Supplies  
Single Ended Forward Output Rectification  
CPU And GPU Core Voltage Regulators  
Typical Application  
VCC  
D1  
4V to 6.85V  
C2  
V
IN  
up to 30V  
Q1  
R1  
0.33 mF  
+
U1  
V
C3  
C1  
6
5
3
2
1
7
CB  
HG  
CC  
(to controller)  
(to controller)  
L1  
V
OUT  
LEN  
LM27222  
0.5V to  
Vin - 0.5V  
4
8
+
Q2  
IN  
SW  
C4  
GND  
LG  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
All trademarks are the property of their respective owners.  
2
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2004–2013, Texas Instruments Incorporated  
 
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LM27222M 替代型号

型号 品牌 替代类型 描述 数据表
LM27222MX/NOPB TI

完全替代

 LM27222 High-Speed 4.5A Synchronous MOSFET Driver
LM27222M/NOPB TI

类似代替

 LM27222 High-Speed 4.5A Synchronous MOSFET Driver

与LM27222M相关器件

型号 品牌 获取价格 描述 数据表
LM27222M/NOPB NSC

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 		IC HALF BRDG BASED MOSFET DRIVER, PDSO8, ROHS COMPLIANT, SOP-8, MOSFET Driver
LM27222M/NOPB TI

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 		LM27222 High-Speed 4.5A Synchronous MOSFET Driver
LM27222MX NSC

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 		High-Speed 4.5A Synchronous MOSFET Driver
LM27222MX/NOPB TI

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 		LM27222 High-Speed 4.5A Synchronous MOSFET Driver
LM27222SD NSC

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 		High-Speed 4.5A Synchronous MOSFET Driver
LM27222SD TI

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 		LM27222 High-Speed 4.5A Synchronous MOSFET Driver
LM27222SD/NOPB NSC

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 		IC 3.2 A HALF BRDG BASED MOSFET DRIVER, DSO8, LEAD FREE, LLP-8, MOSFET Driver
LM27222SD/NOPB TI

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 		LM27222 High-Speed 4.5A Synchronous MOSFET Driver
LM27222SDX NSC

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 		High-Speed 4.5A Synchronous MOSFET Driver
LM27222SDX/NOPB TI

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 		IC,DUAL MOSFET DRIVER,LLCC,8PIN,PLASTIC

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