MAX1617(2000) 查看數據表（PDF） - ON Semiconductor

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MAX1617
(Rev.:2000)

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.)

Symbol

Characteristic

Min

Typ

Max

Unit

Power Supply

VDD

VUV–LOCK

VPOR

IDD

IDD

IDD–STANDBY

IDD–STANDBY

IADD–BIAS

Power Supply Voltage

VDD Undervoltage Lockout Threshold

Power–On Reset Threshold (VDD Falling Edge)

Operating Current

0.25 Conv./Sec Rate SMBus Inactive (1)

Operating Current

2 Conv./Sec Rate SMBus Inactive (1)

Standby Supply Current (SMBus Active)

Standby Supply Current (SMBus Inactive)

ADD[1:0] Bias Current (Power–Up Only)

3.0

—

5.5

V

2.4

2.80

2.95

V

1.0

1.7

2.3

V

mA

—

—

70

mA

—

—

180

—

—

100

mA

—

—

10

mA

—

160

—

mA

ALERT Output

VOL

ADD[1:0] Inputs

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

—

—

0.4

V

VIL

Logic Input Low

VIH

Logic Input High

—

—

VDD x 0.3

V

VDD x 0.7

—

—

V

STBY Input

VIL

Logic Input Low

VIH

Logic Input High

Temp–to–Bits Converter

—

—

VDD x 0.3

V

VDD x 0.7

—

—

V

TRES

TIERR

TEERR

IDIODE–HIGH

IDIODE–LOW

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

External Diode Low Source Current

(D+) – (D–) ~ 0.65 V

—

1.0

—

°C

°C

–2

—

+2

–3

—

+3

—

±3

—

°C

–3

—

+3

–5

—

+5

—

±5

—

—

100

—

mA

—

10

—

mA

VD–SOURCE

tCONV

DCR

Source Voltage

Conversion Time

From CHIP STOP to Conv. Complete (2)

Conversion Rate Accuracy

(See Conversion Rate Register Desc.)

—

0.7

—

V

54

83

112

msec

–35

—

+35

%

2–Wire SMBus Interface

VIH

Logic Input High

2.2

—

—

V

VIL

Logic Input Low

—

—

0.8

V

VOL

SDA Output Low

IOL = 2 mA (3)

IOL = 4 mA (3)

V

—

—

0.4

—

—

0.6

CIN

ILEAK

Input Capacitance SDA, SCL

I/O Leakage

—

5.0

–1.0

0.1

—

pF

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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