Datasheet

© 2011 Microchip Technology Inc. DS25095A-page 3
MCP9808
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
V
DD
.................................................................................. 6.0V
Voltage at All Input/Output Pins .............. GND – 0.3V to 6.0V
Storage Temperature ....................................-65°C to +150°C
Ambient Temperature with Power Applied ....-40°C to +125°C
Junction Temperature (T
J
) ..........................................+150°C
ESD Protection on All Pins (HBM:MM) ................ (4 kV:400V)
Latch-up Current at Each Pin (+25°C) ..................... ±200 mA
†Notice: Stresses above those listed under “Maximum
ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated in the operational listings of this specification
is not implied. Exposure to maximum rating conditions
for extended periods may affect device reliability.
TEMPERATURE SENSOR DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, V
DD
= 2.7V to 5.5V, GND = Ground and
T
A
= -40°C to +125°C.
Parameters Sym Min Typ Max Unit Conditions
Temperature Sensor Accuracy
-20°C < T
A
≤ +100°C T
ACY
T
ACY
-0.5 ±0.25 +0.5 °C V
DD
= 3.3V
-40°C < T
A
≤ +125°C -1.0 ±0.25 +1.0 °C V
DD
= 3.3V
Temperature Conversion Time
0.5°C/bit t
CONV
— 30 — ms 33s/sec (typical)
0.25°C/bit — 65 — ms 15s/sec (typical)
0.125°C/bit — 130 — ms 7s/sec (typical)
0.0625°C/bit — 250 — ms 4s/sec (typical)
Power Supply
Operating Voltage Range V
DD
2.7 — 5.5 V
Operating Current I
DD
—200 400 µA
Shutdown Current I
SHDN
—0.1 2 µA
Power-on Reset (POR) V
POR
— 2.2 — V Threshold for falling V
DD
Power Supply Rejection Δ°C/ΔV
DD
—-0.1 — °C/VV
DD
= 2.7V to 5.5V, T
A
= +25°C
Alert Output (open-drain output, external pull-up resistor required), see Section 5.2.3 “Alert Output Configuration”
High-Level Current (leakage) I
OH
—— 1 µAV
OH
= V
DD
(Active-Low, Pull-up Resistor)
Low-Level Voltage V
OL
—— 0.4 VI
OL
= 3 mA (Active-Low, Pull-up Resistor)
Thermal Response, from +25°C (air) to +125°C (oil bath)
8L-DFN t
RES
— 0.7 — s Time to 63% (+89°C)
8L-MSOP — 1.4 — s