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LT8698SJV-1

更新时间： 2022-05-14 22:22:40
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
40页 4381K
描述
5V 3A Output, 42V Input USB Charger with Cable Drop Compensation and Dataline Protection

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LT8698SJV-1 数据手册

 浏览型号LT8698SJV-1的Datasheet PDF文件第2页浏览型号LT8698SJV-1的Datasheet PDF文件第3页浏览型号LT8698SJV-1的Datasheet PDF文件第4页浏览型号LT8698SJV-1的Datasheet PDF文件第5页浏览型号LT8698SJV-1的Datasheet PDF文件第6页浏览型号LT8698SJV-1的Datasheet PDF文件第7页 
LT8698S/LT8698S-1  
5V 3A Output, 42V Input USB Charger with  
Cable Drop Compensation and Dataline Protection  
FEATURES  
DESCRIPTION  
The LT®8698S is a compact, high efficiency, synchronous  
monolithic step-down switching regulator designed to  
n
Wide V Range Up to 42V  
IN  
n
Programmable Cable Drop Compensation Provides  
Accurate 5V Regulation to Remote USB Sockets  
High Speed USB 2.0 Compliant Dataline Switches  
Selectable Charger Profiles Including Major  
Vendors’ and USB BC 1.2 Profiles  
power the 5V USB V  
rail with up to 3A from an input  
BUS  
n
n
voltage as high as 42V. Programmable cable drop com-  
pensation maintains accurate 5V V regulation even for  
BUS  
USB sockets separated from the LT8698S by a long cable  
such as an automobile wiring harness. Silent Switcher  
Technology and selectable spread-spectrum modulation  
provide ultralow EMI/EMC.  
Silent Switcher®2 Technology and Selectable Spread-  
Spectrum Modulation Provide Ultralow EMI  
Robust Dataline Protection  
n
n
n
Tolerant of Short Condition Up to 20V  
The LT8698S supports a wide variety of portable device  
charger profiles including USB BC 1.2 CDP, DCP, and SDP  
as well as common proprietary profiles. Integrated V  
n
ESD Protected Up to IEC61000-4-2 8kV  
Contact Discharge and 15kV Air Discharge  
Available Status and Fault Output Pins  
Programmable and Synchronizable Switching  
Frequency 300kHz to 3MHz  
Selectable Forced Continuous or Pulse-Skipping Modes  
Small 4mm × 6mm × 0.94mm LQFN Package with  
BUS  
n
n
reset and V  
regulator disable functions support USB  
BUS  
OTG functionality.  
n
n
The LT8698S’s robust high speed USB 2.0 data line  
switches protect the upstream USB host µController  
from short-circuit conditions up to 20V and ESD events  
up to IEC61000-4-2 8kV contact discharge and 15kV air  
0.75mm Spacing from V to GND Pins  
AEC-Q100 Qualified for Automotive Applications  
IN  
n
discharge levels. Further V  
monitor and fault protec-  
BUS  
tion features eliminate the need for a USB power switch.  
The LT8698S includes two parallel 10nF capacitors from  
IN  
APPLICATIONS  
n
Automotive USB  
V
to PGND for improved EMI/EMC performance. The  
n
Industrial USB  
LT8698S-1 does not include these capacitors.  
All registered trademarks and trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
Automotive Charger with High Speed Dataline Protection and Cable Drop Compensation  
USB BC1.2 CDP Session  
V
IN  
6V TO 42V  
V
IN  
EN/UV  
SW  
INTV  
CC  
LT8698S  
ꢀ
BUS  
ꢀ.ꢁꢂꢃꢄꢅꢂ  
ꢀꢁꢂꢃ  
ꢀAꢁꢂꢃꢄ  
FLT  
STATUS  
OUT/ISP  
BUS/ISN  
USB5V  
HIGH SPEED  
USB 2.0 HOST  
µCONTROLLER  
3 METER  
USB  
USB CABLE  
SOCKET  
SEL1-3  
0.1Ω  
ꢁ
ꢂ
V
D
BUS  
ꢀ ꢂ ꢀ  
+
+
–
+
LD  
D
D
+
ꢀꢁꢂꢃꢄꢁ  
HD  
–
–
–
D
LD  
HD  
0.1Ω  
CLAMP  
GND PGND  
RCBL  
RT  
ꢀꢁAꢁꢂꢀ  
ꢀꢁꢂꢃꢄꢁ  
GND  
ꢀꢁꢂꢀꢃ ꢄAꢅꢆꢇ  
IMON  
ꢀꢁꢁꢂꢃꢄꢅꢆꢇ  
8698S TA01  
Rev. A  
1
Document Feedback  
For more information www.analog.com  
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