ADT6501ARJP045 AD [Analog Devices], ADT6501ARJP045 Datasheet

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ADT6501ARJP045

Manufacturer Part Number
ADT6501ARJP045
Description
Low Cost, 2.7 V to 5.5 V, Micropower Temperature Switches in SOT-23
Manufacturer
AD [Analog Devices]
Datasheet
1.ADT6501ARJP045.pdf (16 pages)
Preliminary Technical Data
FEATURES
±0.5°C (typ) accuracy over temperature range
Factory set trip points from −45°C to +15°C in 10°C
Factory set trip points from +35°C to +115°C in 10°C
No external components required
Max temperature of +125°C
Open-drain output (ADT6501/ADT6503)
Push-pull output (ADT6502/ADT6504)
Pin selectable hysteresis of 2°C and 10°C
Supply current of 30 μA (typ)
Space saving 5-lead SOT23 package
APPLICATIONS
Medical equipment
Automotive
Cell phone
Hard disk drives
Personal computers
Electronic test equipment
Domestic appliances
Process control
GENERAL DESCRIPTION
The ADT6501/ADT6502/ADT6503/ADT6504 are trip point
temperature switches available in a 5-lead SOT23 package. It
contains an internal band gap temperature sensor for local
temperature sensing. When the temperature crosses the trip
point setting, the logic output is activated. The ADT6501/
ADT6503 logic output is active low and open-drain. The
ADT6502/ADT6504 logic output is active high and push-pull.
The temperature is digitized to a resolution of +0.0625°C
(12 bit). The factory settings are 10°C apart starting from −45°C
to +15°C for the cold threshold models and from +35°C to
+115°C for the hot threshold models.
These devices require no external components and typically
consume 30μA supply current. Hysteresis is pin selectable at
2°C and 10°C. The temperature switch is specified to operate
over the supply range of 2.7 V to 5.5 V.
ADT6501 and ADT6502 are used for monitoring temperatures
from +35°C to +115°C only. Hence, the logic output pin
Rev. PrA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
increments
increments
ADT6501/ADT6502/ADT6503/ADT6504
Low Cost, 2.7 V to 5.5 V, Micropower
Temperature Switches in SOT-23
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
becomes active when the temperature goes higher than the
selected trip point temperature. The ADT6503 and ADT6504
are used for monitoring temperatures from −45°C to +15°C
only. Hence, the logic output pin becomes active when the
temperature goes lower than the selected trip point
temperature.
PRODUCT HIGHLIGHTS
1.
2.
3.
4.
5.
6.
7.
TEMPERATURE
REFERENCE
GENERATION
CLK AND
SENSOR
TIMING
±0.5°C typical from −55°C to +125°C.
Factory threshold settings from −45°C to +115°C in 10°C
increments
Supply voltage is 2.7 V to 5.5 V.
Supply current of 30 μA.
Space-saving 5-lead SOT23 package.
Pin selectable temperature hysteresis of 2°C or 10°C.
Temperature resolution of 0.0625°C.
FUNCTIONAL BLOCK DIAGRAM
–
+
Σ-Δ
1-BIT
DAC
FACTORY PRESET
DECIMATOR
© 2006 Analog Devices, Inc. All rights reserved.
TRIP POINT
REGISTER
LPF
1-BIT
GND
V
CC
4
1
Figure 1.
GND
2
12-BIT
HYST
3
2°C/10°C
DIGITAL
COMPARATOR
www.analog.com
5
TOVER

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ADT6501ARJP045 Summary of contents

Page 1

Preliminary Technical Data FEATURES ±0.5°C (typ) accuracy over temperature range Factory set trip points from −45°C to +15°C in 10°C increments Factory set trip points from +35°C to +115°C in 10°C increments No external components required Max temperature of +125°C ...

Page 2

ADT6501/ADT6502/ADT6503/ADT6504 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Specifications..................................................................................... 3 Absolute Maximum Ratings ....................................................... 4 ESD Caution.................................................................................. 4 Pin Configuration and Function Descriptions............................. 5 Typical Performance ...

Page 3

Preliminary Technical Data SPECIFICATIONS 2 5.5 V. All specifications for −45°C to +115°C, unless otherwise noted. Open-drain R A MIN MAX DD Table 1. Parameter TEMPERATURE SENSOR AND ADC Threshold ...

Page 4

ADT6501/ADT6502/ADT6503/ADT6504 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter V to GND CC HYST Input Voltage to GND Open Drain Output Voltage to GND Push-Pull Output Voltage to GND Input Current on All Pins Output Current on All Pins Operating Temperature Range ...

Page 5

Preliminary Technical Data PIN CONFIGURATION AND FUNCTION DESCRIPTIONS ADT6501/ ADT6502 GND 1 TOP VIEW GND 2 (Not to Scale) HYST 3 Figure 3. ADT6501/ADT6502 Pin Configuration Table 3. Pin Function Descriptions ADT6501/ADT6502 ADT6503/ADT6504 Pin No. Pin No ...

Page 6

ADT6501/ADT6502/ADT6503/ADT6504 TYPICAL PERFORMANCE CHARACTERISTICS Figure 5. Figure 6. Figure 7. Preliminary Technical Data Rev. PrA | Page Figure 8. Figure 9. Figure 10. ...

Page 7

Preliminary Technical Data Figure 11. Figure 12. ADT6501/ADT6502/ADT6503/ADT6504 Rev. PrA | Page Figure 13. ...

Page 8

Preliminary Technical Data THEORY OF OPERATION CIRCUIT INFORMATION The ADT6501/ADT6502/ADT6503/ADT6504 are 12-bit digital th temperature sensors with the 12 bit acting as the sign bit. An on- board temperature sensor generates a voltage precisely proportional to absolute temperature that is ...

Page 9

Preliminary Technical Data FUNCTIONAL DESCRIPTION The conversion clock for the part is generated internally. No external clock is required. The internal clock oscillator runs an automatic conversion sequence. During this automatic conversion sequence, a conversion is initiated every 600 ms. ...

Page 10

ADT6501/ADT6502/ADT6503/ADT6504 APPLICATION INFORMATION THERMAL RESPONSE TIME The time required for a temperature sensor to settle to a specified accuracy is a function of the thermal mass of the sensor and the thermal conductivity between the sensor and the object being ...

Page 11

Preliminary Technical Data TEMPERATURE MONITORING The ADT6501/ADT6502/ADT6503/ADT6504 are ideal for monitoring the thermal environment within electronic equipment. For example, the surface-mount package accurately reflects the exact thermal conditions that affect nearby integrated circuits. The ADT650x measure and convert the temperature ...

Page 12

... ADT6501/ADT6502/ADT6503/ADT6504 OUTLINE DIMENSIONS 1.60 BSC 1.30 1.15 0.90 0.15 MAX ORDERING GUIDE Model Threshold Temperature ADT6501ARJP035 +35°C ADT6501ARJP045 +45°C ADT6501ARJP055 +55°C ADT6501ARJP065 +65°C ADT6501ARJP075 +75°C ADT6501ARJP085 +85°C ADT6501ARJP095 +95°C ADT6501ARJP105 +105°C ADT6501ARJP115 +115°C ADT6502ARJP035 +35°C ADT6502ARJP045 +45°C ADT6502ARJP055 +55°C ADT6502ARJP065 +65°C ADT6502ARJP075 +75°C ADT6502ARJP085 +85° ...

Page 13

Preliminary Technical Data NOTES ADT6501/ADT6502/ADT6503/ADT6504 Rev. PrA | Page ...

Page 14

ADT6501/ADT6502/ADT6503/ADT6504 NOTES Preliminary Technical Data Rev. PrA | Page ...

Page 15

Preliminary Technical Data NOTES ADT6501/ADT6502/ADT6503/ADT6504 Rev. PrA | Page ...

Page 16

ADT6501/ADT6502/ADT6503/ADT6504 NOTES 2 Purchase of licensed I C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I 2 Rights to use these components system, ...

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