LM75BIMMX-5 datasheet(5/23 Pages) TI1

部品番号	LM75BIMMX-5

部品情報	LM75C Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface

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LM75B, LM75C

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SNIS153B – JULY 2009 – REVISED MARCH 2013

Logic Electrical Characteristics

DIGITAL DC CHARACTERISTICS

Unless otherwise noted, these specifications apply for +VS = +5 Vdc for LM75BIM-5, LM75BIMM-5, LM75CIM-5, and

LM75CIMM-5; and +VS = +3.3 Vdc for LM75BIM-3, LM75BIMM-3, LM75CIM-3, and LM75CIMM-3

(1). Boldface limits apply

for TA = TJ = TMIN to TMAX; all other limits TA = TJ = +25°C, unless otherwise noted.

Symbol

Parameter

Conditions

Typical(2)

Limits(3)

Units (Limit)

+VS × 0.7

V (min)

VIN(1)

Logical “1” Input Voltage

+VS + 0.3

V (max)

−0.3

V (min)

VIN(0)

Logical “0” Input Voltage

+VS × 0.3

V (max)

IIN(1)

Logical “1” Input Current

VIN = +VS

0.005

1.0

μA (max)

IIN(0)

Logical “0” Input Current

VIN = 0V

−0.005

−1.0

μA (max)

CIN

All Digital Inputs

5

pF

LM75B

VOH = 5V

10

μA (max)

IOH

High Level Output Current

LM75C

VOH = 5V

100

μA (max)

VOL

Low Level Output Voltage

IOL = 3 mA

0.4

V (max)

tOF

Output Fall Time

CL = 400 pF IO = 3 mA

250

ns (max)

(1)

All part numbers of the LM75 will operate properly over the +VS supply voltage range of 3V to 5.5V. The devices are tested and

specified for rated accuracy at their nominal supply voltage. Accuracy will typically degrade 1°C/V of variation in +VS as it varies from

the nominal value.

(2)

Typicals are at TA = 25°C and represent most likely parametric norm.

(3)

Limits are specified to AOQL (Average Outgoing Quality Level).

Logic Electrical Characteristics

I

2C Digital Switching Characteristics

Unless otherwise noted, these specifications apply for VS = +5 Vdc for LM75BIM-5, LM75BIMM-5, LM75CIM-5, and

LM75CIMM-5; and +VS = +3.3 Vdc for LM75BIM-3, LM75BIMM-3, LM75CIM-3, and LM75CIMM-3CL (load capacitance) on

output lines = 80 pF unless otherwise specified. Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ =

+25°C, unless otherwise noted.

Units

Symbol

Parameter

Conditions

Typical(1)

Limits(2)(3)

(Limit)

t1

SCL (Clock) Period

2.5

μs (min)

t2

Data in Set-Up Time to SCL High

100

ns (min)

t3

Data Out Stable after SCL Low

0

ns (min)

t4

SDA Low Set-Up Time to SCL Low (Start Condition)

100

ns (min)

t5

SDA High Hold Time after SCL High (Stop Condition)

100

ns (min)

75

ms (min)

LM75B

325

ms (max)

tTIMEOUT

SDA Time Low for Reset of Serial Interface(4)

LM75C

Not Applicable

(1)

Typicals are at TA = 25°C and represent most likely parametric norm.

(2)

Limits are specified to AOQL (Average Outgoing Quality Level).

(3)

Timing specifications are tested at the bus input logic levels (Vin(0)=0.3xVA for a falling edge and Vin(1)=0.7xVA for a rising edge) when

the SCL and SDA edge rates are similar.

(4)

Holding the SDA line low for a time greater than tTIMEOUT will cause the LM75B to reset SDA to the IDLE state of the serial bus

communication (SDA set High).

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Product Folder Links: LM75B LM75C

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