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NE1617A

Selection guide

Datasheet

(Product Specification)
v.4, 30-Jul-09, 27 pages, 165 kB

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Temperature monitor for microprocessor systems

General description
Features
Products/packages
Quality/reliability/chemical content
Pricing/ordering/availability
Samples
Discontinued information
Applications
Block diagrams/pinning
Design support
Parametrics/similar products
Print/email
Disclaimers
All information hereunder is subject to the subsequent disclaimers

General description

The NE1617A is an accurate two-channel temperature monitor. It measures the temperature of itself and the temperature of a remote sensor. The remote sensor is a diode connected transistor. This can be in the form of either a discrete NPN/PNP, such as the 2N3904/2N3906, or a diode connected PNP built into another die, such as is done on some Intel microprocessors.

The temperature of both the remote and local sensors is stored in a register that can be read via a 2-wire SMBus. The temperatures are updated at a rate that is programmable via the SMBus (the average supply current is dependent upon the update ratethe faster the rate, the higher the current).

In addition to the normal operation, which is to update the temperature at the programmed rate, there is a one-shot mode that will force a temperature update.

There is also an alarm that senses either an overtemperature or undertemperature condition. The trip points for this alarm are also programmable.

The device can have 1 of 9 addresses (determined by 2 address pins), so there can be up to 9 of the NE1617A on the SMBus.

It can also be put in standby mode (in order to save power). This can be done either with software (over the SMBus) or with hardware (using the STBY pin).

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Features

  • Replacement for Maxim MAX1617 and Analog Devices ADM1021
  • Monitors local and remote temperature
  • Local (on-chip) sensor accuracy:
    • +-2 Cel at 60 Cel to 100 Cel
    • +-3 Cel at -40 Cel to 125 Cel
  • Remote sensor accuracy:
    • +-3 Cel at 60 Cel to 100 Cel
    • +-5 Cel at -40 Cel to 125 Cel
  • No calibration required
  • Programmable overtemperature/undertemperature alarm
  • SMBus 2-wire serial interface up to 100 kHz
  • 3 V to 5.5 V supply range; 5.5 V tolerant
  • 70 uA supply current in operating mode
  • 3 uA (typical) supply current in standby mode
  • ESD protection exceeds 2000 V HBM per JESD22-A114, 250 V MM per JESD22-A115, and 1000 V CDM per JESD22-C101
  • Latch-up testing is done to JEDEC standard JESD78, which exceeds 100 mA
  • Small 16-lead SSOP (QSOP) package

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Products/packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
NE1617ADSNE1617ADS,1129352 681 19112Volume productionSOT519-1
(SSOP16) 		TubeStandard Marking
NE1617ADSNE1617ADS,1189352 681 19118Volume productionSOT519-1
(SSOP16) 		Reel Pack, SMD, 13"Standard Marking
NE1617ADS/01NE1617ADS/01,1129352 769 75112DevelopmentSOT519-1
(SSOP16) 		TubeStandard Marking
NE1617ADS/01NE1617ADS/01,1189352 769 75118DevelopmentSOT519-1
(SSOP16) 		Reel Pack, SMD, 13"Standard Marking
NE1617ADS/CD8458/NNE1617ADS/CD8458N,9352 785 17112DevelopmentSOT519TubeStandard Marking
NE1617ADS/CD8458/NNE1617ADS/CD8458/N9352 785 17118DevelopmentSOT519Reel Pack, SMD, 13"Standard Marking
NE1617ADS/GNE1617ADS/G,1129352 787 13112Volume productionSOT519-1
(SSOP16) 		TubeStandard Marking
NE1617ADS/GNE1617ADS/G,1189352 787 13118Volume productionSOT519-1
(SSOP16) 		Reel Pack, SMD, 13"Standard Marking

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Quality/reliability/chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree Conversion dateRHFIRF (FIT)MTBF (hours)MSL Lead-free
NE1617ADSNE1617ADS,112NE1617ADS
week 13, 2005
NE1617ADSNE1617ADS,118NE1617ADS
week 13, 2005
NE1617ADS/01NE1617ADS/01,112NE1617ADS_01
NE1617ADS/01NE1617ADS/01,118NE1617ADS_01
NE1617ADS/CD8458/NNE1617ADS/CD8458N,Not available
NE1617ADS/CD8458/NNE1617ADS/CD8458/NNot available
NE1617ADS/GNE1617ADS/G,112NE1617ADS_G
Always Pb-free
NE1617ADS/GNE1617ADS/G,118NE1617ADS_G
Always Pb-free

Quality and reliability disclaimer

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Pricing/ordering/availability

Type numberOrdering code(12NC)Orderable part numberIndicative price/unit($)RegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
NE1617ADS9352 681 19112  NE1617ADS,112  1.0800NAARROW ELECTRONICS118 3/18/2010Buy onlinenot available
    JAPANCHIP ONE STOPno 03/19/2010Buy online 
NE1617ADS9352 681 19118  NE1617ADS,118  1.0800NAARROW ELECTRONICS118 3/18/2010Buy onlineOrder samples
    NAFUTURE ELECTRONICS5,000 3/17/2010Buy online 
    JAPANCHIP ONE STOPyes 03/19/2010Buy online 
    ASIAWPI15,000250003/18/2010Buy online 
NE1617ADS/019352 769 75112  NE1617ADS/01,112        not available
NE1617ADS/019352 769 75118  NE1617ADS/01,118        not available
NE1617ADS/CD8458/N9352 785 17112  NE1617ADS/CD8458N,        not available
NE1617ADS/CD8458/N9352 785 17118  NE1617ADS/CD8458/N        not available
NE1617ADS/G9352 787 13112  NE1617ADS/G,112  JAPANCHIP ONE STOPno 03/19/2010Buy onlinenot available
NE1617ADS/G9352 787 13118  NE1617ADS/G,118  JAPANCHIP ONE STOPno 03/19/2010Buy onlineOrder samples
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Applications

  • Desktop computers
  • Notebook computers
  • Smart battery packs
  • Industrial controllers
  • Telecommunications equipment


Related applications
Intelligent washing machine
Transceiver board
Power amplifier board
Main CPU board
LCD TV - MMS functionality

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Parametrics/similar products

Type numberPackageStandby
current(uA)		Operating
temp.(Cel)		Accuracy on-chip( ±°C)Accuracy remote( ±°C)Assignable AddressesOver Temperature AlertRemote Temperature MonitorSMBus Clock (max)(kHz)Under Temperature AlertOperating voltage(VDC)
NE1617ADSSOT519-1
(SSOP16)		100~1201@+60~100
2@0~125		3@+60~100
5@0~125		9yesyes100yes3.0~5.5
NE1617ADS/01SOT519-1
(SSOP16)		100~1201@+60~100
2@0~125		3@+60~100
5@0~125		9yesyes100yes3.0~5.5
NE1617ADS/CD8458/NSOT519
100~1201@+60~100
2@0~125		3@+60~100
5@0~125		9yesyes100yes3.0~5.5
NE1617ADS/GSOT519-1
(SSOP16)		100~1201@+60~100
2@0~125		3@+60~100
5@0~125		9yesyes100yes3.0~5.5


Similar products
NE1617A links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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