MIC281_14 Datasheet, PDF (3/14 Pages) Micrel Semiconductor – Low-Cost IttyBitty™ Thermal Sensor

Micrel, Inc.
MIC281
Absolute Maximum Ratings⁽²⁾
Power Supply Voltage (V_DD)........................................+3.8V
Voltage on T1 ....................................... –0.3V to V_DD + 0.3V
Voltage on CLK, DATA ..................................... –0.3V to 6V
Current into Any Pin ..................................................±10mA
Power Dissipation, T_A = +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 (V_DD) ........................ +3.0V to +3.6V
Ambient Temperature Range (T_A) ............ –55°C to +125°C
Package Thermal Resistance
SOT23-6 (_JA) ..................................................230°C/W
Electrical Characteristics⁽⁵⁾
VDD = 3.3V; TA = 25°C, unless noted. Bold values indicate TMIN ≤ TA ≤ TMAX, unless noted⁽³⁾.
Symbol Parameter
Condition
Power Supply
T1 open; CLK = DATA = High;
Normal mode
IDD
Supply Current
Shutdown mode; T1 open; Note 7
CLK = 100kHz
Shutdown mode; T1 open;
CLK = DATA = High
tPOR
Power-on Reset Time, Note 7 VDD > VPOR
VPOR
Power-on Reset Voltage
All registers reset to default values;
A/D conversions initiated
VHYST
Power-on Reset Hysteresis
Voltage, Note 7
Temperature-to-Digital Converter Characteristics
Accuracy, Notes 7, 8, 9
0°C ≤ TD ≤ 100°C, 0°C < TA < 85°C;
3.15V < VDD < 3.45V
–40°C ≤ TD ≤ 125°C, 0°C < TA < 85°C;
3.15V < VDD < 3.45V
tCONV
Conversion Time
Note 7
Remote Temperature Input, T1
IF
Current into External Diode,
Note 7
T1 forced to 1.0V, high level
Low level
Min. Typ. Max. Units
0.23
0.4
mA
9
µA
6
µA
200
µs
2.65 2.95
V
300
mV
±1
±3
°C
±2
±5
°C
200
240
ms
192
400
µA
7
12
µA
April 23, 2014
3
Revision 2.0