Rainbow-electronics MAX6690 Manual de usuario descargar pdf (Pagina 2)

MAX6690

2°C Accurate Remote/Local Temperature

Sensor with SMBus Serial Interface

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

= +3V to +5.5V, T

= -55°C to +125°C, unless otherwise noted. 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.

(All voltages are referenced to GND unless otherwise noted.)

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

DXP, ADD_ .................................................-0.3V to (V

+ 0.3V)

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

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

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

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

ESD Protection (all pins, Human Body Model). .................2000V

Continuous Power Dissipation (T

= +70°C)

16-Pin QSOP (derate 8.30mW/°C above +70°C).........667mW

Operating Temperature Range ........................-55°C to +125°C

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

Storage Temperature Range ............................-65°C to +165°C

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

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

TEMPERATURE-TO-DIGITAL CONVERTER

+60°C ≤ T

≤ +100°C, V

= +3.3V -2.5 +2.5

0°C ≤ T

≤ +100°C, V

= +3.3V -3.5 +3.5

Accuracy (Local Sensor)

-55°C ≤ T

≤ +120°C, V

= +3.3V -5.0 +5.0

°C

+70° C ≤ T

≤ + 100° C, V

= + 3.3V ( Note 1) -2 +2

0°C ≤ T

≤ +100°C, V

= +3.3V (Note 1) -3.5 +3.5Accuracy (Remote Sensor)

-55°C ≤ T

≤ +120°C, V

= + 3.3V ( Notes 1, 2) -5 +5

°C

Line Regulation 0.2 0.5 °C

+1 °C

Resolution (Legacy Mode) Conversion rate >1Hz

+8 Bits

+0.125 °C

Resolution (Extended Mode) Conversion rate ≤1Hz

+11 Bits

Undervoltage Lockout

Threshold

UVLO

input, disables A/D conversion,

rising edge

+2.60 +2.80 +2.95 V

Undervoltage Lockout

Hysteresis

+90 mV

Supply Voltage Range V

+3.0 +5.5 V

Pow er -On Reset ( POR) Thr eshol d V

, falling edge +1.5 +2.0 +2.5 V

POR Threshold Hysteresis +90 mV

Standby Current SMBus static +3 +10 µA

Operating Current During conversion +0.55 +1 mA

0.25 conversion/s (Note 3) +40 +70

Average Operating Current

2 conversion/s (Note 3) +150 +250

µA

Conversion Time t

CONV

From stop bit to conversion completed, in

legacy mode (Note 3)

+95 +125 +156 ms

Conversion Timing Error ±25 %

High level +80 +100 +120

Remote-Diode Current I

Low level +8 +10 +12

µA

1 2 3 4 5 6 7 ... 15 16

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Rainbow-electronics MAX6690 Manual de usuario Pagina 2

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