Rainbow-electronics MAX6681 Bedienungsanleitung PDF herunterladen (Seite 2)

MAX6680/MAX6681

±1°C Fail-Safe Remote/Local Temperature

Sensors with SMBus Interface

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(Circuit of Typical Operating Circuit, V

= 3.0V to 5.5V, T

= -25°C to +125°C, unless otherwise specified. Typical values are at V

= 3.3V and T

= +25°C.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

...........................................................................-0.3V to +6V

DXP.............................................................-0.3V to (V

+ 0.3V)

DXN ......................................................................-0.3V to +0.8V

SMBCLK, SMBDATA, ALERT, OVERT .....................-0.3V to +6V

RESET, INT_SEL, STBY, ADD0, ADD1.....................-0.3V to +6V

CRIT1, CRIT0, SENS_SEL ........................................-0.3V to +6V

SMBDATA, ALERT, OVERT, Current ..................-1mA to +50mA

DXN Current ......................................................................±1mA

Continuous Power Dissipation (T

= +70°C)

16-Pin QSOP (derate 8.3mW/°C above +70°C) ..........664mW

Junction Temperature .....................................................+150°C

Storage Temperature Range ............................-65°C to +150°C

Lead Temperature (soldering, 10s) ................................+300°C

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

1 °C

Temperature Resolution,

Legacy Mode

8 Bits

0.125 °C

Temperature Resolution,

Extended Mode

11 Bits

= +60°C to +100°C, V

= 3.3V -1.0 +1.0

= +50°C to +120°C, V

= 3.3V -2.0 +2.0Rem ote Tem p er atur e E r r or ( N ote 1)

= -55°C to +125°C, V

= 3.3V -3.0 +3.0

°C

= +60°C to +100°C, V

= 3.3V -1.5 +1.5

= 0°C to +125°C, V

= 3.3V -3.0 +3.0

Local Temperature Error

= -55°C to +125°C, V

= 3.3V (Note 2) -5.0 +5.0

°C

Line Regulation 3.0V ≤ V

≤ 5.5V 0.2 0.6 m°C/V

Supply Voltage Range V

3.0 5.5 V

Undervoltage Lockout Threshold UVLO Falling edge of V

disables ADC 2.60 2.80 2.95 V

Undervoltage Lockout Hysteresis 90

Power-On Reset (POR)

Threshold

, falling edge 1.5 2.0 2.5 V

POR Threshold Hysteresis 90 mV

Legacy 62.5

Conversion Time

Extended 125

Standby Supply Current SMBus static 3 10 µA

Operating Current During conversion 0.55 1.0 mA

0.25 conversions/s 35 70

Average Operating Current

(Note 3)

2 conversions/s 120 180

µA

DXP and DXN Leakage Current In standby mode 2 µA

High level 80 100 120

Remote-Diode Source Current I

Low level 8 10 12

µA

1 2 3 4 5 6 7 ... 16 17

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