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NE1617
Datasheet
General description
The NE1617 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 rate-the 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 over or under temperature 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 NE1617 on the SMBus.
It can also be put in a standby mode (in order to save power). This can be done either with software (over the SMBus) or with hardware (using the STANDBY pin).
Features
- Replacement for Maxim MAX1617 and Analog Devices ADM1021
- Monitors local and remote temperature
- Accuracy
- +- 2 Cel local (on-chip) sensor
- +- 3 Cel remote sensor
- No calibration required
- Programmable over/under temperature alarm
- SMBus 2-wire serial interface
- 3 V to 5.5 V supply range
- 70 uA supply current in operating mode
- 3 uA (typical) supply current in standby mode
- Small 16-lead SSOP package
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| NE1617DS | NE1617DS | 9352 633 84112 | Volume production | SOT519-1
(SSOP16) | Tube | Standard Marking | NE1617DS
| week 13, 2005 |
| NE1617DS | NE1617DS-T | 9352 633 84118 | Volume production | SOT519-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | NE1617DS
| week 13, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online |
|---|---|---|---|---|---|---|---|
| NE1617DS | 9352 633 84112 | 1.9600 | |||||
| NE1617DS | 9352 633 84118 | 1.9600 |
Applications
- Desktop computers
- Notebook computers
- Smart battery packs
- Industrial controllers
- Telecom equipment
Related applications
LCD display - discretes focus
PDA - discretes focus
Motherboard components
50-60 Hz CRT integrated DTV (TV210D)
Mid-range integrated DTV (TV810)
Intelligent washing machine
Transceiver board
Power amplifier board
Main CPU board
LCD TV - MMS functionality
Technical documents
Application Notes
AN10216_1;
I2C manual (27-Mar-03)
Support Documents
75011212;
I2C 2002-1A Evaluation Board Kit (01-Mar-03)
75012744;
I2C Bus Solutions 2004 (2004-02-01)
UM10204_3;
I2C-bus specification and user manual (26-Jun-07)
75016533;
NXP temperature sensors NE1617A & NE1619 (2008-08-01)
75010346;
PMU+ laptop and notebooks (2002-10-01)
Parametrics/similar products
| Type number | Package | Standby current(uA) | Operating temp.(Cel) | Accuracy on-chip( ±°C) | Accuracy remote( ±°C) | Assignable Addresses | Over Temperature Alert | Remote Temperature Monitor | SMBus Clock (max)(kHz) | Under Temperature Alert | Operating voltage(VDC) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NE1617DS | SOT519-1
(SSOP16) | 10 | 0~120 | 1@+60~100 | 3@+60~100 | 9 | yes | yes | 100 | yes | 3.0~5.5 |
Similar products
NE1617 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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