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MIC280_14 Datasheet, PDF (3/28 Pages) Micrel Semiconductor – Precision IttyBitty™ Thermal Supervisor
Micrel, Inc.
MIC280
Absolute Maximum Ratings(2)
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 (Ts).........................–65°C to +150°C
ESD Ratings(4)
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(3)
Power Supply Voltage (VDD) ........................ +3.0V to +3.6V
Ambient Temperature Range (TA) ............ –55°C to +125°C
Junction Temperature .............................................. +150°C
Junction Thermal Resistance
SOT23-6 (JA) ..................................................230°C/W
Electrical Characteristics(5, 6)
VDD = 3.3V; TA = 25°C, unless noted. Bold values indicate –55°C ≤ TA ≤ +125°C, 3.0V ≤ VDD ≤ 3.6V, unless noted(3).
Symbol Parameter
Condition
Min. Typ. Max.
Power Supply
/INT, T1 open; CLK = DATA = High;
Normal mode
0.23
0.4
IDD
Supply Current
Shutdown mode; /INT, T1 open; Note 7
CLK = 100kHz, DATA = High
9
Shutdown mode; /INT, T1 open;
CLK = DATA = High
6
tPOR
Power-on Reset Time, Note 7 VDD > VPOR
200
VPOR
Power-on Reset Voltage
All registers reset to default values;
A/D conversions initiated
2.65 2.95
VHYST
Power-on Reset Hysteresis
Voltage, Note 7
300
Temperature-to-Digital Converter Characteristics
Accuracy, Remote Temperature
Notes 3, 9, 12, 13
Accuracy, Local Temperature
Notes 3, 12
60°C ≤ TD ≤ 100°C
3.15V < VDD < 3.45V, 25°C < TA < 85°C
0°C ≤ TD ≤ 100°C
3.15V < VDD < 3.45V, 25°C < TA < 85°C
–55°C ≤ TD ≤ 125°C
3.15V < VDD < 3.45V, 25°C < TA < 85°C
0°C ≤ TA ≤ 100°C, 3.15V < VDD < 3.45V
–55°C ≤ TA ≤ 125°C, 3.15V < VDD < 3.45V
RES[1:0]=00 (9 bits)
±0.25 ±1
±1
±2
±2
±4
±1
±2
±1.5 ±2.5
200
240
tCONV
Conversion Time
Notes 3, 10
RES[1:0]=01 (10 bits)
RES[1:0]=10 (11 bits)
330
390
570
670
RES[1:0]=11 (12 bits)
1000 1250
Units
mA
µA
µA
µs
V
mV
°C
°C
°C
°C
°C
ms
ms
ms
ms
May 5, 2014
3
Revision 2.0