Rainbow-electronics MAX6692 Manual do Utilizador descarregar pdf (Página 2)

MAX6648/MAX6692

Precision SMBus-Compatible Remote/Local

Temperature Sensors with Overtemperature Alarms

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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 Referenced to GND

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

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

+ 0.3V)

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

SCLK, SDA, ALERT, OVERT.....................................-0.3V to +6V

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

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

Continuous Power Dissipation (T

= +70°C)

8-Pin µMAX (derate 5.9mW/°C above +70°C) .............471mW

8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW

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

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

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

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

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

ELECTRICAL CHARACTERISTICS

= 3.0V to 5.5V, T

= -55°C to +125°C, unless otherwise specified. Typical values are at V

= 3.3V and T

= +85°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage V

3.0 5.5 V

0.125

°C

Temperature Resolution

10 Bits

= 3.3V,

= +85°C

= +25°C to +125°C -0.8 +0.8

= +60°C to +100°C -1.0 +1.0

= 3.3V,

+60°C ≤ T

≤

+100°C

= 0°C to +125°C

-1.6 +1.6

Remote Temperature Error

= 3.3V, +0°C

≤ T

≤ +100°C

= 0°C to +125°C

-3.0 +3.0

°C

= +60°C to +100°C

-2.0 +2.0

Local Temperature Error V

= 3.3V

= 0°C to +125°C

-3.0 +3.0

°C

Supply Sensitivity of Temperature

Error

±0.2

°C/V

Undervoltage Lockout (UVLO)

Threshold

UVLO Falling edge of V

disables ADC 2.4 2.7

2.95

UVLO Hysteresis 90 mV

Power-On-Reset (POR) Threshold

falling edge 2.0 V

POR Threshold Hysteresis 90 mV

Standby Supply Current SMBus static 3.5 12 µA

Operating Current During conversion

0.45

0.8 mA

0.25 conversions per second 40 80

Average Operating Current

2 conversions per second

250

400

µA

Conversion Time t

CONV

From stop bit to conversion completion 95

125

156 ms

Conversion Time Error -25

+25

DXP and DXN Leakage Current Standby mode 100 nA

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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