adt6402 Analog Devices, Inc., adt6402 Datasheet
adt6402
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adt6402 Summary of contents
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... When the temperature crosses the trip point setting, the logic output is activated. The ADT6401 logic output is active low and open-drain. The ADT6402 logic output is active high and push-pull. The temperature is digitized to a resolution of 0.125°C (11-bit). The pin-selectable trip point settings are 10° ...
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... ADT6401/ADT6402 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Absolute Maximum Ratings ............................................................ 4 ESD Caution .................................................................................. 4 Pin Configurations and Function Descriptions ........................... 5 Typical Performance Characteristics ............................................. 6 Typical Application Circuits ............................................................ 8 REVISION HISTORY 5/08—Revision 0: Initial Version Theory of Operation .........................................................................9 Circuit Information .......................................................................9 ...
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... − 1 2.7 5 μA Rev Page ADT6401/ADT6402 Test Conditions/Comments T = −45°C to −25° −15°C to +15° 35°C to 65° 75°C to 115°C A Time necessary to complete a conversion Conversion started every 600 ms Pin selectable, depends on S0, S1, S2 settings ...
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... ADT6401/ADT6402 ABSOLUTE MAXIMUM RATINGS Table 2. Parameter V to GND CC S0, S1, S2 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 ESD rating (HBM) Operating Temperature Range Storage Temperature Range Maximum Junction Temperature, T ...
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... (Not to Scale Figure 4. ADT6402 Pin Configuration Description Select Pin for Trip Point and Hysteresis Values. Select Pin for Trip Point and Hysteresis Values. Select Pin for Trip Point and Hysteresis Values. Supply Input (2 5.5 V). Ground. Open-Drain, Active Low Output. Pull-up resistor required. This pin goes low when the temperature of the part exceeds the pin-selectable threshold ...
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... TEMPERATURE (°C) Figure 6. Operating Supply Current vs. Temperature 180 160 140 2.7V 120 3.3V 100 –80 –60 –40 – TEMPERATURE (°C) Figure 7. ADT6402 Output Source Resistance vs. Temperature 0.2 0.3 0.4 0.5 3.3V 80 100 120 140 5. 100 120 140 Rev Page 2.7V 3. ...
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... Figure 12. ADT6401 Start-Up and Power-Down Delay 1 2 CH1 2.4 20.0ns/pt Figure 14. Operating Supply Current vs. Voltage Over Temperature Rev Page ADT6401/ADT6402 V CC TOVER 2.0V CH2 2.0V M 10.0ms 50.0kS/s 20.0µs/pt A CH1 1.68V Figure 13. ADT6401 Start-Up Delay 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 V (V) CC –40ºC –10ºC +25ºC +75º ...
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... HYSTERESIS = +2° ADT6402 S2 TUNDER S1 S0 GND TRIP POINT = –35°C HYSTERESIS = +2°C Figure 17. Temperature Window Alarms Rev Page 3.3V 12V 0.1µ ADT6402 TOVER GND TRIP POINT = 65°C HYSTERESIS = 10°C Figure 16. Overtemperature Fan Control OVER TEMPERATURE OUT OF RANGE UNDER TEMPERATURE ...
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... The ADT6401/ADT6402 decode the inputs on S0, S1, and S2 to determine the temperature trip point and hysteresis value, as outlined in Table 4. The ADT6401 overtemperature/undertemperature output is intended to interface to reset inputs of microprocessors. The ADT6402 is intended for driving circuits of applications, such as fan control circuits. Table 4. Selecting Trip Points and Hysteresis S2 S1 ...
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... HOT TEMP TUNDER HOT TEMP Rev Page TUNDER HOT COLD TTH 10°C HYSTERESIS 2°C HYSTERESIS Figure 20. ADT6401 TUNDER Transfer Function V COLD HOT TTH 10°C HYSTERESIS 2°C HYSTERESIS Figure 21. ADT6402 TUNDER Transfer Function TEMP TEMP ...
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... ADT6401/ADT6402 package, the mounting technique, and the effects of airflow. At 25°C, static dissipation in the ADT6401/ ADT6402 is typically 99 μW operating at 3 the 6-lead SOT-23 package mounted in free air, this accounts for a tempera- ture increase due to self-heating of Δ ...
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... INDICATOR 1.30 1.15 0.90 0.15 MAX ORDERING GUIDE Temperature Model Range ADT6401SRJZ-RL7 1 −55°C to +125°C 1 ADT6402SRJZ-RL7 −55°C to +125° RoHS Compliant Part. ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 2.90 BSC 2.80 BSC ...