OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

ADT7486AARMZ-REEL7

P1-P3P4-P6P7-P9P10-P12P13-P14
Semiconductor Components Industries, LLC, 2012
July, 2012 − Rev. 5
1 Publication Order Number:
ADT7484A−86A/D
ADT7484A/ADT7486A
Digital Temperature Sensor
with SST Interface
The ADT7484A/ADT7486A are simple digital temperature sensors
for use in PC applications with a Simple Serial Transport (SST)
interface. These devices can monitor their own temperature as well as
the temperature of one (ADT7484A) or two (ADT7486A) remote
sensor diodes. The ADT7484A/ADT7486A are controlled by a single
SST bidirectional data line. The devices are fixed-address SST clients
where the target address is chosen by the state of the two address pins,
ADD0 and ADD1.
Features
1 On-Chip Temperature Sensor
1 or 2 Remote Temperature Sensors
Simple Serial Transport (SST) Interface Rev 1 Compliant
These Devices are Pb-Free and are RoHS Compliant
Applications
Personal Computers
Portable Personal Devices
Industrial Sensor Nets
Figure 1. Functional Block Diagram
GND
D1−
D1+
D2−
D2+
ANALOG
MUX
ON-CHIP
TEMPERATURE
SENSOR
A/D
CONVERTER
LOCAL TEMP
VALUE REGISTER
REMOTE TEMP
VALUE REGISTER
ADDRESS
SELECTION
OFFSET
REGISTERS
SST
INTERFACE
DIGITAL MUX
ADT7484A/
ADT7486A
V
CC
ADD0 ADD1 SSTRESERVED
ADT7486A ONLY
MARKING DIAGRAMS
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
ORDERING INFORMATION
MSOP−10
CASE 846AC
SOIC−8
CASE 751
T7484A
ALYWG
G
1
8
MSOP−8
CASE 846AB
PIN ASSIGNMENTS
T22
AYWG
G
1
10
1
8
T20
AYWG
G
T2x = Specific Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb-Free Package
(Note: Microdot may be in either location)
T7484A = Specific Device Code
A = Assembly Location
L = Wafer Lot
Y = Year
W = Work Week
G = Pb-Free Package
RESERVED
SST
ADD0
ADD1
V
CC
GND
D1+
D1−
10
9
8
7
6
5
4
3
2
1
ADT7486A
(Top View)
D2+ D2−
RESERVED
SST
ADD0
ADD1
V
CC
GND
D1+
D1−
8
7
6
54
3
2
1
ADT7484A
(Top View)
MSOP−10
SOIC−8
MSOP−8
ADT7484A/ADT7486A
http://onsemi.com
2
Table 1. ADT7484A PIN ASSIGNMENT
Pin No. Mnemonic Type Description
1 V
CC
Power Supply 3.3 V 10%
2 GND Ground Ground Pin
3 D1+ Analog Input Positive Connection to Remote Temperature Sensor
4 D1− Analog Input Negative Connection to Remote Temperature Sensor
5 ADD1 Digital Input SST Address Select
6 RESERVED Reserved Connect to Ground
7 ADD0 Digital Input SST Address Select
8 SST Digital Input/Output SST Bidirectional Data Line
Table 2. ADT7486A PIN ASSIGNMENT
Pin No. Mnemonic Type Description
1 V
CC
Power Supply 3.3 V 10%.
2 GND Ground Ground Pin
3 D1+ Analog Input Positive Connection to Remote 1 Temperature Sensor
4 D1− Analog Input Negative Connection to Remote 1 Temperature Sensor
5 D2+ Analog Input Positive Connection to Remote 2 Temperature Sensor
6 D2− Analog Input Negative Connection to Remote 2 Temperature Sensor
7 ADD1 Analog Input SST Address Select
8 RESERVED Analog Input Connect to Ground
9 ADD0 Digital Input SST Address Select
10 SST Digital Input/Output SST Bidirectional Data Line
Table 3. ABSOLUTE MAXIMUM RATINGS
Parameter Rating Unit
Supply Voltage (V
CC
) 3.6 V
Voltage on Any Other Pin (Including SST Pin) 3.6 V
Input Current at Any Pin 5.0 mA
Package Input Current 20 mA
Maximum Junction Temperature (T
J
MAX
) 150 C
Storage Temperature Range −65 to +150 C
Lead Temperature, Soldering
IR Reflow Peak Temperature
Lead Temperature, Soldering (10 sec)
260
300
C
ESD Rating 1,500 V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NOTE: This device is ESD sensitive. Use standard ESD precautions when handling.
Table 4. THERMAL CHARACTERISTICS (Note 1)
Package Type
q
JA
q
JC
Unit
8-lead MSOP and 8-lead SOIC NB Packages (ADT7484A) 206 44 C/W
10-lead MSOP (ADT7486A) 206 44 C/W
1. q
JA
is specified for the worst-case conditions, that is, a device soldered in a circuit board for surface-mount packages.
ADT7484A/ADT7486A
http://onsemi.com
3
Table 5. ELECTRICAL CHARACTERISTICS
(T
A
=T
MIN
to T
MAX
, V
CC
=V
MIN
to V
MAX
, unless otherwise noted)
Parameter
Conditions Min Typ Max Unit
Power Supply
Supply Voltage, V
CC
3.0 3.3 3.6 V
Undervoltage Lockout Threshold − 2.8 − V
Average Operating Supply
Current, I
DD
Continuous Conversions − 3.8 5.0 mA
Temperature-to-Digital Converter
Local Sensor Accuracy 40C T
A
70C, V
CC
= 3.3 V 5%
−40C T
A
+100C
−
−
+1.0
−
1.75
4.0
C
Remote Sensor Accuracy −40C T
D
+125C; T
A
=25C; V
CC
=3.3V
−40C T
D
+125C; −40 T
A
70C,
V
CC
=3.3V 5%
−40C T
D
+125C; −40 T
A
+100C
−
−
−
−
+1.0
−
1.0
1.75
4.0
C
Remote Sensor Source Current Low Level
Mid Level
High Level
−
−
−
12
80
204
−
−
−
mA
Resolution − 0.016 − C
Series Resistance Cancellation The ADT7484A and ADT7486A Cancel
1.5 kW in Series with the Remote Thermal
Diode
− 1.5 −
kW
Conversion Time
(Local Temperature) (Note 1)
Averaging Enabled − 12 12 ms
Conversion Time
(Remote Temperature) (Note 1)
Averaging Enabled − − 38 ms
Total Monitoring Cycle Time
(Note 1)
Averaging Enabled − − 50 ms
Digital Inputs (ADD0, ADD1)
Input High Voltage, V
IH
2.3 − − V
Input Low Voltage, V
IL
− − 0.8 V
Input High Current, I
IH
V
IN
=V
CC
−1.0 − −
mA
Input Low Current, I
IL
V
IN
=0 − − 1.0
mA
Pin Capacitance − 5.0 − pF
Digital I/O (SST Pin)
Input High Voltage, V
IH
1.1 − − V
Input Low Voltage, V
IL
− − 0.4 V
Hysteresis (Note 1) Between Input Switching Levels − 150 − mV
Output High Voltage, V
OH
I
SOURCE
= 6 mA (maximum) 1.1 − 1.9 V
High Impedance State Leakage,
I
LEAK
Device Powered On SST Bus;
V
SST
= 1.1 V, V
CC
= 3.3 V
− − 1.0
mA
High Impedance State Leakage,
I
LEAK
Device Unpowered On SST Bus;
V
SST
= 1.1 V, V
CC
=0V
− − 10
mA
Signal Noise Immunity, V
NOISE
Noise Glitches from
10 MHz to 100 MHz; Width Up to 50 ns
300 − − mV
p-p
P1-P3P4-P6P7-P9P10-P12P13-P14

ADT7486AARMZ-REEL7

Mfr. #:
Buy ADT7486AARMZ-REEL7
Manufacturer:
ON Semiconductor
Description:
SENSOR DIGITAL -40C-125C 10MSOP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet