MAX1617 データシートの表示（PDF） - ON Semiconductor

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MAX1617

SMBus Temperature Sensor with Internal and External Diode Input

ON Semiconductor 

MAX1617

DC ELECTRICAL CHARACTERISTICS (VDD = 3.3 V, –55°C ≤ TA ≤ 125°C, unless otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

Power Supply

Power Supply Voltage

VDD Undervoltage Lockout Threshold

Power–On Reset Threshold (VDD Falling Edge)

Operating Current

0.25 Conv./Sec Rate SMBus Inactive (1)

VDD

VUV–LOCK

VPOR

IDD

3.0

–

5.5

V

2.4

2.80

2.95

V

1.0

1.7

2.3

V

mA

–

–

70

Operating Current

2 Conv./Sec Rate SMBus Inactive (1)

IDD

mA

–

–

180

Standby Supply Current (SMBus Active)

Standby Supply Current (SMBus Inactive)

ADD[1:0] Bias Current (Power–Up Only)

ALERT Output

Output Low Voltage (IOL = 1.0 mA) (3)

ADD[1:0] Inputs

Logic Input Low

Logic Input High

STBY Input

Logic Input Low

Logic Input High

Temp–to–Bits Converter

Basic Temperature Resolution

Internal Diode Temperature

+60°C ≤ TA ≤ +100°C

0°C ≤ TA ≤ +125°C

–55°C ≤ TA ≤ 0°C

External Diode Temperature

+60°C ≤ TA ≤ +100°C

0°C ≤ TA ≤ +125°C

–55°C ≤ TA ≤ 0°C

External Diode High Source Current

(D+) – (D–) ~ 0.65 V

IDD–STANDBY

IDD–STANDBY

IADD–BIAS

VOL

VIL

VIH

VIL

VIH

TRES

TIERR

TEERR

IDIODE–HIGH

–

–

–

–

–

VDD x 0.7

–

VDD x 0.7

–

–2.0

–3.0

–

–3.0

–5.0

–

–

–

–

160

–

–

–

–

–

1.0

–

–

±3.0

–

–

±5.0

100

100

mA

10

mA

–

mA

0.4

V

VDD x 0.3

V

–

V

VDD x 0.3

V

–

V

–

°C

°C

+2.0

+3.0

–

°C

+3.0

+5.0

–

–

mA

External Diode Low Source Current

(D+) – (D–) ~ 0.65 V

IDIODE–LOW

–

10

–

mA

Source Voltage

Conversion Time

From CHIP STOP to Conv. Complete (2)

VD–SOURCE

–

0.7

–

V

tCONV

54

83

112

msec

Conversion Rate Accuracy

(See Conversion Rate Register Desc.)

DCR

–35

–

+35

%

2–Wire SMBus Interface

Logic Input High

VIH

2.2

–

–

V

Logic Input Low

VIL

–

–

0.8

V

SDA Output Low

IOL = 2 mA (3)

IOL = 4 mA (3)

VOL

V

–

–

0.4

–

–

0.6

Input Capacitance SDA, SCL

CIN

–

5.0

–

pF

I/O Leakage

ILEAK

–1.0

0.1

1.0

mA

1. Operating current is an average value (including external diode injection pulse current) integrated over multiple conversion cycles. Transient

current may exceed this specification.

2. For true recurring conversion time see Conversion Rate register description.

3. Output current should be minimized for best temperature accuracy. Power dissipation within the MAX1617 will cause self–heating and

temperature drift error.

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