数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

LTM4676A 数据表(PDF) 38 Page - Linear Technology

部件名 LTM4676A
功能描述  Dual 13A or Single 26A 關Module Regulator with Digital Power System Management
Download  136 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTM4676A 数据表(HTML) 38 Page - Linear Technology

Back Button LTM4676A Datasheet HTML 34Page - Linear Technology LTM4676A Datasheet HTML 35Page - Linear Technology LTM4676A Datasheet HTML 36Page - Linear Technology LTM4676A Datasheet HTML 37Page - Linear Technology LTM4676A Datasheet HTML 38Page - Linear Technology LTM4676A Datasheet HTML 39Page - Linear Technology LTM4676A Datasheet HTML 40Page - Linear Technology LTM4676A Datasheet HTML 41Page - Linear Technology LTM4676A Datasheet HTML 42Page - Linear Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 38 / 136 page
background image
LTM4676A
38
4676afa
For more information www.linear.com/LTM4676A
sequence is started. The resolution of the TON_MAX_
FAULT_LIMITn is 10µs. If the VOUT_UV_FAULT_LIMITn
is not reached within the TON_MAX_FAULT_LIMITn time,
the response of this fault is determined by the value of
theTON_MAX_FAULT_RESPONSEncommandvalue.This
response may be one of the following:
n
Ignore
n
Shut Down (Stop Switching) Immediately—Latch Off
n
Shut Down Immediately—Retry Indefinitely using the
Time Interval Specified in MFR_RETRY_DELAYn
This fault response is not deglitched. A value of 0 in
TON_MAX_FAULT_LIMITnmeansthefaultisignored.The
TON_MAX_FAULT_LIMITn should be set longer than the
TON_RISEn time. It is recommended TON_MAX_FAULT_
LIMITn always be set to a non-zero value, otherwise the
outputmaynevercomeupandnoflagwillbesettotheuser.
See Table 28.
RESPONSES TO SVIN OV FAULTS
SVIN overvoltage is measured with the ADC; therefore,
the response is naturally deglitched by up to the 90ms
typical response time of the ADC. The fault responses are:
n
Ignore
n
Shut Down Immediately—Latch Off
n
Shut Down Immediately—Retry Indefinitely using the
Time Interval Specified in MFR_RETRY_DELAYn
See Table 28.
RESPONSES TO OT/UT FAULTS
Internal Overtemperature Fault/Warn Response
An internal temperature sensor protects against EEPROM
damage. Above 85°C, no writes to EEPROM are recom-
mended. Above 130°C, the internal over temperature warn
thresholdisexceededandthepartdisablesEEPROMwrites
and does not re-enable until the temperature has dropped
to 125°C. When the die temperature exceed 160°C the
operaTion
internal over temperature fault response is enabled and
the PWM is disabled until the die temperature drops below
150°C. Temperature is measured by the ADC. Internal
temperaturefaultscannotbeignored.Internaltemperature
limits cannot be adjusted by the user.
See Table 27.
External Overtemperature and Undertemperature
Fault Response
Two temperature sensors within the LTM4676A are
used to sense power stage temperature. The OT_FAULT_
RESPONSEnandUT_FAULT_RESPONSEncommandsare
used to determine the appropriate response to an over-
temperatureandundertemperaturecondition,respectively.
The fault responses are:
n
Ignore
n
Shut Down Immediately—Latch Off
n
Shut Down Immediately—Retry Indefinitely using the
Time Interval Specified in MFR_RETRY_DELAYn
See Table 28.
RESPONSES TO EXTERNAL FAULTS
When either GPIOn pin is pulled low, the OTHER bit is set
intheSTATUS_WORDcommand,theappropriatebitisset
in the STATUS_MFR_SPECIFC command, and the ALERT
pinispulledlow.Responsesarenotdeglitched.Eachchan-
nel can be configured to ignore or shut down then retry
in response to its GPIOn pin going low by modifying the
MFR_GPIO_RESPONSEn command. To avoid the ALERT
pin asserting low when GPIO is pulled low, assert bit 1
of MFR_CHAN_CONFIGn, or mask the ALERT using the
SMBALERT_MASK command.
FAULT LOGGING
The LTM4676A has fault logging capability. Data is logged
into memory in the order shown in Table 30. The data to
be stored in the fault log is being continuously stored in


类似零件编号 - LTM4676A

制造商部件名数据表功能描述
logo
Linear Technology
LTM4676A LINER-LTM4676A Datasheet
695Kb / 34P
   25A DC/DC Step-Down 關Module Regulator
logo
Analog Devices
LTM4676A AD-LTM4676A Datasheet
2Mb / 116P
   60V Dual Output Step-Up Controller with Digital Power System Management
logo
Linear Technology
LTM4676A LINER-LTM4676A Datasheet
1Mb / 34P
   30A DC/DC Step-Down 關Module Regulator
logo
Analog Devices
LTM4676A AD-LTM4676A Datasheet
3Mb / 118P
   Dual Loop 8-Phase Step-Down DC/DC Controller with Digital Power System Management
Rev. B
logo
Linear Technology
LTM4676A LINER-LTM4676A Datasheet
911Kb / 22P
   PolyPhase Step-Down Slave Controller for Digital Power System Management
More results

类似说明 - LTM4676A

制造商部件名数据表功能描述
logo
Linear Technology
LTM4676 LINER-LTM4676_15 Datasheet
1Mb / 78P
   Dual 13A or Single 26A Module Regulator with Digital Power System Management
LTM4676A LINER-LTM4676A_15 Datasheet
1Mb / 130P
   Dual 13A or Single 26A Module Regulator with Digital Power System Management
LTM4620 LINER-LTM4620 Datasheet
2Mb / 36P
   Dual 13A or Single 26A DC/DC 關Module Regulator
LTM4620 LINER-LTM4620_15 Datasheet
657Kb / 40P
   Dual 13A or Single 26A DC/DC Module Regulator
LTM4620A LINER-LTM4620A_15 Datasheet
716Kb / 40P
   Dual 13A or Single 26A DC/DC Module Regulator
LTM4620A LINER-LTM4620A Datasheet
554Kb / 36P
   Dual 13A or Single 26A DC/DC 關Module Regulator Frequency Synchronization
logo
Analog Devices
LTM4678 AD-LTM4678 Datasheet
6Mb / 124P
   Dual 25A or Single 50A 關Module Regulator with Digital Power System Management
LTM4686B AD-LTM4686B Datasheet
3Mb / 130P
   Ultrathin Dual 14A or Single 28A 關Module Regulator with Digital Power System Management
Rev. 0
logo
Linear Technology
LTM4676EY LINER-LTM4676EY Datasheet
2Mb / 10P
   26A Step-Down 關Module Regulator with PMBus Power System Management
LTM4675 LINER-LTM4675_15 Datasheet
2Mb / 128P
   Dual 9A or Single 18A Module Regulator with Digital Power System Management
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com