NE1617DS NXP Semiconductors, NE1617DS Datasheet - Page 2

• Manufacturer Part Number: NE1617DS
• Description: Board Mount Temperature Sensors I2C LOC +/- 2OC AND REM +/- 3OC TS
• Manufacturer: NXP Semiconductors

Specifications of NE1617DS

• Full Temp Accuracy: +/- 3 C, +/- 5 C
• Package / Case: SSOP-16
• Digital Output - Bus Interface: 2-Wire
• Maximum Operating Temperature: + 120 C
• Minimum Operating Temperature: 0 C
• Output Type: Digital
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: NE1617DS,112

Philips Semiconductors
FEATURES
APPLICATIONS
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).
2004 Oct 06
Replacement for Maxim MAX1617 and Analog Devices ADM1021
Monitors local and remote temperature
Accuracy
–
–
No calibration required
Programmable over/under temperature alarm
SMBus 2-wire serial interface
3 V to 5.5 V supply range
70 A supply current in operating mode
3 A (typical) supply current in standby mode
Small 16–lead SSOP package
Desktop computers
Notebook computers
Smart battery packs
Industrial controllers
Telecom equipment
Temperature monitor for microprocessor systems
2 C local (on-chip) sensor
3 C remote sensor
2
1. These pins should either float or be tied to ground.
2. V
PIN CONFIGURATION
PIN FUNCTION DESCRIPTION
NOTES:
PIN #
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
DD
pin should be decoupled by a 0.1 F capacitor.
FUNCTION
ALERT
SDATA
ADD1
ADD0
SCLK
STBY
TEST
TEST
TEST
TEST
TEST
GND
GND
V
TEST1
TEST5
D+
D–
ADD1
Figure 1. Pin configuration
DD
GND
GND
V
D+
D–
DD
1
2
3
4
5
6
7
8
Factory use only
Positive supply
Positive side of remote sensor
Negative side of remote sensor
Factory use only
Device address pin (3-State)
Ground
Ground
Factory use only
Device address pin (3-State)
Open drain output used as
interrupt or SMBus alert
SMBus serial data input/output
open drain
Factory use only
SMBus clock input
Hardware standby input pin
Factory use only
DESCRIPTION/COMMENTS
HIGH = normal operating mode
LOW = standby mode
SL01202
16
15
14
13
12
11
10
9
TEST16
STBY
SCLK
TEST13
SDATA
ALERT
ADD0
TEST9
Product specification
2
1
1
1
1
1
NE1617