Datasheet

MCP9843/98243
DS22153C-page 8 © 2009 Microchip Technology Inc.
Note: Unless otherwise indicated, V
DD
= 2.7V to 5.5V, GND = Ground, SDA/SCL pulled-up to V
DD
, and
T
A
= -40°C to +125°C.
FIGURE 2-7: Event and SDA V
OL
vs.
Temperature.
FIGURE 2-8: Conversion Rate vs.
Temperature.
FIGURE 2-9: Power Supply Rejection vs.
Frequency.
FIGURE 2-10: SDA I
OL
vs. Temperature.
FIGURE 2-11: Temperature Accuracy vs.
V
DD
.
FIGURE 2-12: Package Thermal
Response.
0
0.1
0.2
0.3
0.4
-40 -20 0 20 40 60 80 100 120
T
A
(°C)
SDA and Event Output (V)
Event V
OL
SDA V
OL
I
OH
= I
OL
= 3 mA
Event (V
DD
- V
OH
)
35
50
65
80
95
110
125
-40 -20 0 20 40 60 80 100 120
T
A
(°C)
t
CONV
(ms)
-1.0
-0.5
0.0
0.5
1.0
100 1,000 10,000 100,000 1,000,000
Frequency (Hz)
Normalized Temp. Error (°C)
Δ°C/ΔV
DD
, V
DD
= 3.3V + 150 mV
PP (AC)
1k 10k 100k 1M100k 1M10k 100k 1M1k 10k 100k 1M
100 1k 10k 100k 1M
T
A
= 25°C
No decoupling capacitor
6
12
18
24
30
36
42
48
-40 -20 0 20 40 60 80 100 120
T
A
(°C)
SDA I
OL
(mA)
V
OL
= 0.6V
-3.0
-2.0
-1.0
0.0
1.0
2.0
3.0
-40 -20 0 20 40 60 80 100 120
T
A
(°C)
Temperature Accuracy (°C)
Δ°C/ΔV
DD
= 0.4°C/
V
V
DD
= 2.7V
V
DD
= 3.0V
V
DD
= 3.6V
V
DD
= 5.5V
0%
20%
40%
60%
80%
100%
120%
-2 0 2 4 6 8 10 12 14 16
Time (s)
Thermal Response (%)
22°C (Air) to 125°C (Oil bath)
TSSOP-8
DFN-8