MIC280 datasheet(3/23 Pages) MICREL

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November 2004

MIC280

Micrel

Absolute Maximum Ratings (Note 1)

Power Supply Voltage, VDD.....................................................3.8V

Voltage on T1 ........................................–0.3V to VDD+0.3V

Voltage on CLK, DATA, /INT..............................–0.3V to 6V

Current Into Any Pin ................................................. ±10mA

Power Dissipation, TA = 125°C................................109mW

Storage Temperature................................ –65°C to +150°C

ESD Ratings,

Note 3

Human Body Model ................................................ 1.5kV

Machine Model ........................................................ 200V

Soldering (SOT23-6 Package)

Vapor Phase (60s).....................................220°C +5/-0°C

Infrared (15s) .............................................235°C +5/-0°C

Operating Ratings (Note 2)

Power Supply Voltage, VDD............................ +3V to +3.6V

Ambient Temperature Range (TA) .......... –55°C to +125°C

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

Package Thermal Resistance (θJA)

SOT23-6 ............................................................230°C/W

Electrical Characteristics

For typical values TA = 25°C, VDD = 3.3V, unless otherwise noted.

Bold values indicate –55°C ≤ TA ≤ 125°C, 3.0V ≤ VDD ≤ 3.6V, unless otherwise noted. Note 2

Symbol

Parameter

Conditions

Min.

Typ

Max

Units

Power Supply

IDD

Supply Current

/INT, T1 open; CLK=DATA=High;

0.23

0.4

Normal Mode

Shutdown Mode; /INT, T1 open;

Note 5

CLK=100kHz, DATA=High

Shutdown Mode; /INT, T1 open;

[TBD]

CLK=DATA=High

tPOR

Power-on Reset Time,

Note 5

VDD > VPOR

200

VPOR

Power-on Reset Voltage

All registers reset to default values;

2.65

2.95

A/D conversions initiated

VHYST

Power-on Reset Hysteresis Voltage

300

Note 5

Temperature-to-Digital Converter Characteristics

Accuracy, Remote Temperature

60°C ≤ TD ≤ 100°C,

±0.25

±1

°C

Notes 2, 7, 10, 11

3.15V < VDD < 3.45V, 25°C < TA < 85°C

0°C ≤ TD ≤ 100°C,

±1

±2

°C

3.15V < VDD < 3.45V, 25°C < TA < 85°C

–55°C ≤ TD ≤ 125°C,

±2

±4

°C

3.15V < VDD < 3.45V, 25°C < TA < 85°C

Accuracy, Local Temperature

0°C ≤ TA ≤ 100°C, 3.15V < VDD < 3.45V

±1

±2

°C

Note 2, 10

–55°C ≤ TA ≤ 125°C, 3.15V < VDD < 3.45V

±1.5

±2.5

°C

tCONV

Conversion Time, Notes 2, 8

RES[1:0]=00 (9 bits)

200

240

RES[1:0]=01 (10 bits)

330

390

RES[1:0]=10 (11 bits)

570

670

RES[1:0]=11 (12 bits)

1000

1250

Remote Temperature Input, T1

Current into External Diode

T1 forced to 1.0V, High level

192

400

Note 5

Low level

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