ASC7531A ETC2 [List of Unclassifed Manufacturers], ASC7531A Datasheet - Page 2

• Manufacturer Part Number: ASC7531A
• Description: LOW-VOLTAGE 1-WIRE DIGITAL TEMPERATURE SENSOR AND VOLTAGE MONITOR
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

Absolute Maximum Ratings
Electrical Characteristics
© Andigilog, Inc. 2006
Supply Voltage, V
Voltage on any Digital Input or Output
Voltage on 12V Analog Input
Voltage on 5V Analog Input
Voltage on Other Analog Inputs
Input Current on any pin
Package Input Current
Relative Humidity (non-operating)
Maximum Junction Temperature, TJmax
Storage Temperature Range
IR Reflow Peak Temperature
Lead Soldering Temperature (10 sec.)
ESD
Supply Voltage
SST Signal
Local Sensor Accuracy
Local Sensor Resolution
Remote Diode Sensor Accuracy
Remote Diode Sensor Resolution
Temperature Monitor Cycle Time
ADC Total Unadjusted Error
ADC Differential Nonlinearity
ADC Power Supply Sensitivity
ADC Resolution
ADC Total Monitoring Cycle Time
ADC Input Resistance
Notes:
(- 40°C ≤ T
6.
7.
8.
9.
10. Total monitoring cycle time for all temperature and analog input voltage measurements is 0.2 second.
11. TUE includes Offset, Gain and Linearity errors of the ADC.
5
These specifications are guaranteed only for the test conditions listed.
Accuracy (expressed in °C) = Difference between the aSC7531 reported temperature and the device temperature.
The aSC7531 can be read at any time without interrupting the temperature conversion process.
For the aSC7531A, calibration of the remote diode sensor input is set to meet the accuracy limits with a diode-connected 2N3904 that has
a non-ideality factor of 1.0046 with a series resistance of 0.6Ω. For the aSC7531B, calibration of the remote diode sensor input is set to
meet the accuracy limits with a CPU substrate diode that has a non-ideality factor of 1.009 with a series resistance of 4.52Ω.
A
≤ +125°C, V
Parameter
Parameter
Charged-Device Model
DD
Human Body Model
Machine Model
3
7, 8
3
D D
1
= 3 . 3 V unless otherwise noted. Specifications subject to change without notice)
3
11
3
3
7, 8, 9
10
10
6
3
-60°C to +150°C
@ 25°C to 70°C
TUE
DNL
PSS
V
-0.3V to V
5% - 85% RH
t
t
-0.3, +3.63V
DD
C
C
V
Rating
>1000 V
DD
2000 V
±20mA
150°C
260°C
300°C
±5mA
250 V
0.3V
6.5V
16V
+ 0.3V
DD
www.andigilog.com
+
- 40°C ≤ T
-40°C≤T
40°C ≤ T
0°C ≤ T
0°C ≤ T
50°C≤T
- 2 -
Conditions
Notes:
D
A
A
A
D
A
≤+125°C
≤ +125°C
≤ 70°C,
≤ 70°C,
1.
2.
3.
4.
5.
≤70°C
≤ 70°C
Absolute maximum ratings are limits beyond which operation
may cause permanent damage to the device. These are
stress ratings only; functional operation at or above these
limits is not implied. For guaranteed specifications and test
conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some
performance characteristics may degrade when the device is
not operated under the listed test conditions.
All voltages are measured with respect to GND, unless
otherwise specified.
When the input voltage (VIN) at any pin exceeds the power
supplies (VIN< (GND or GNDA) or VIN>V+, except for SST
and analog voltage inputs), the current at that pin should be
limited to 5mA. The 20mA maximum package input current
rating limits to number of pins that can safely exceed the
power supplies with an input current of 5mA to four.
The maximum power dissipation must be de-rated at elevated
temperatures and is dictated by TJmax, θ
temperature, T
any temperature is PD = (TJmax - TA) / θ
into account self-heating that can adversely affect the
accuracy of internal sensors.
Human Body Model: 100pF capacitor discharged through a
1.5kΩ resistor into each pin. Machine Model: 200pF capacitor
discharged directly into each pin. Charged-Device Model is
per JESD22-C101C.
aSC7531A / aSC7531B
A
. The maximum allowable power dissipation at
Meets SST Specification Version 1.0
Min
3.0
0.125
0.125
for 1.5V interface
Typ
140
3.3
7.8
±1
±1
December 2006 - 70A05012
≥100
Max
JA
JA
3.6
0.2
0.2
±3
±2
±3
±1
2
. It must also take
and the ambient
Units
% FS
% / V
LSB
Sec
Sec
mV
kΩ
°C
°C
°C
°C
°C
°C
V