Rainbow-electronics LM77 Manual do Utilizador descarregar pdf (Página 4)

Absolute Maximum Ratings (Note 1)

Supply Voltage −0.3V to 6.5V

Voltage at any Pin −0.3V to (+V

+ 0.3V )

Input Current at any Pin 5 mA

Package Input Current (Note 2) 20 mA

T_CRIT_A and INT Output Sink

Current 10 mA

T_CRIT_A and INT Output

Voltage 6.5V

Storage Temperature −65˚C to +125˚C

Soldering Information, Lead

Temperature

SOP and MSOP Package (Note 3)

Vapor Phase (60 seconds) 215˚C

Infrared (15 seconds) 220˚C

ESD Susceptibility (Note 4)

Human Body Model 2500V

Machine Model 250V

Operating Ratings (Notes 1, 5)

Specified Temperature Range T

MIN

to T

MAX

(Note 6) −55˚C to +125˚C

Supply Voltage Range (+V

)(Note 7) +3.0V to +5.5V

Temperature-to-Digital Converter Characteristics

Unless otherwise noted, these specifications apply for +V

=+5 Vdc

10% for LM77CIM-5, LM77CIMM-5 and +V

=+3.3 Vdc

10% for LM77CIM-3, LM77CIMM-3 (Note 7). Boldface limits apply for T

MIN

to T

MAX

; all other limits T

=+25˚C, unless otherwise noted.

Parameter Conditions

Typical

(Note 8)

Limits

(Note 9)

Units

(Limit)

Accuracy T

= −10˚C to +65˚C

1.5

˚C (max)T

= −25˚C to +100˚C

2.0

= −55˚C to +125˚C

3.0

Resolution (Note 10) 10

0.5

Bits

˚C

Temperature Conversion Time (Note 11) 70 125 ms

Quiescent Current I

C Inactive 0.25 mA

C Active 0.25 0.5 mA (max)

Shutdown Mode 5 10 µA

HYST

Default Temperature (Notes 13, 14) 2 ˚C

LOW

Default Temperature (Note 14) 10 ˚C

HIGH

Default Temperature (Note 14) 64 ˚C

Default Temperature (Note 14) 80 ˚C

Logic Electrical Characteristics

DIGITAL DC CHARACTERISTICS Unless otherwise noted, these specifications apply for +V

=+5 Vdc

10% for LM77CIM-5,

LM77CIMM-5 and +V

=+3.3 Vdc

10% for LM77CIM-3, LM77CIMM-3. Boldface limits apply for T

MIN

to T

MAX

; all

other limits T

=+25˚C, unless otherwise noted.

Symbol Parameter Conditions

Typical

(Note 8)

Limits

(Note 9)

Units

(Limit)

IN(1)

SDA and SCL Logical “1” Input

Voltage

x 0.7 V (min)

+0.3 V (max)

IN(0)

SDA and SCL Logical “0” Input

Voltage

−0.3 V (min)

x 0.3 V (max)

IN(1)

A0 and A1 Logical “1” Input

Voltage

2.0 V (min)

+0.3 V (max)

IN(0)

A0 and A1 Logical “0” Input

Voltage

−0.3 V (min)

0.8 V (max)

IN(1)

Logical “1” Input Current V

=+V

0.005 1.0 µA (max)

IN(0)

Logical “0” Input Current V

= 0V −0.005 −1.0 µA (max)

Capacitance of All Digital Inputs 20 pF

LM77

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