MCP9805T-BE/ST Microchip Technology, MCP9805T-BE/ST Datasheet - Page 6

• Manufacturer Part Number: MCP9805T-BE/ST
• Description: IC,TEMPERATURE SENSOR,TSSOP,8PIN,PLASTIC
• Manufacturer: Microchip Technology

Specifications of MCP9805T-BE/ST

• Rohs Compliant: YES
• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Type: I²C™/SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP
• Temperature Threshold: Programmable
• Full Temp Accuracy: 3 C
• Digital Output - Bus Interface: I2C, SMBus
• Digital Output - Number Of Bits: 10 bit
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 20 C
• Supply Current: 500 uA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MCP9805
Note: Unless otherwise noted: V
FIGURE 2-7:
Ambient Temperature.
FIGURE 2-8:
Ambient Temperature.
FIGURE 2-9:
Frequency.
DS21977B-page 6
0.4
0.3
0.2
0.1
125
110
-0.5
-1.0
95
80
65
50
35
1.0
0.5
0.0
0
-40
-40
100
100
SDA, V
V
PSR
No decoupling capacitor
DD
-20
-20
V
V
= 3.0V to 3.6V
AC
DD
DD
DD
, V
= 3.0V
= 3.3V
= 3.6V
DD
0
0
1k
1k
1k
1,000
= 3.3V + 150mV
Event and SDA V
Conversion Rate vs.
Power Supply Rejection vs.
20
20
Frequency (Hz)
T
T
A
40
A
40
10,000
10k
10k
10k
10k
(°C)
(°C)
PP (AC)
Event, V
DD
60
60
= 3.0V to 3.6V, GND = Ground, C
DD
80
80
100k
100k
100k
100k
100k
100,000
= 3.0V to 3.6V
I
OL
T
T
100
100
OL
A
A
= 3mA
= 25°C
= +25°C
vs.
120
120
1,000,000
1M
1M
1M
1M
1M
FIGURE 2-10:
Temperature.
FIGURE 2-11:
V
FIGURE 2-12:
Response.
DD
.
120%
100%
-1.0
-2.0
-3.0
de_cap
48
42
36
30
24
18
12
3.0
2.0
1.0
0.0
80%
60%
40%
20%
6
0%
-40
-40
-2
V
V
V
V
V
DD
DD
DD
DD
DD
= 0.1 µF.
-20
-20
= 3.3V
= 3.0V
= 3.6V
= 3.0V
= 3.6V
0
0
0
2
SDA IOL vs. Ambient
Temperature Accuracy vs.
Package Thermal
20
20
4
© 2005 Microchip Technology Inc.
TSSOP-8
DFN-8
T
T
Time (s)
A
6
40
A
40
(°C)
(°C)
22°C (Air) to +125°C (Oil bath)
8
60
60
PSR
10
DC
80
80
= 0.3°C/V
V
12
OL
100
100
= 0.6V
14
120
120
16