AMC6821-Q1 Datasheet, PDF (6/54 Pages) Texas Instruments – INTELLIGENT TEMPERATURE MONITOR AND PWM FAN CONTROLLER

AMC6821-Q1
SBAS475 – JUNE 2009 ...................................................................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS
T_A = 25°C, V_DD = 5 V (unless otherwise noted)
REMOTE CHANNEL ERROR vs REMOTE TEMPERATURE
3
LOCAL CHANNEL ERROR FROM CALIBRATED BATH
3
2
Remote Error, V_DD = 3V
1
2
V_DD = 5V
1
0
0
-1
-1
Remote Error, V_DD = 5V
-2
-2
V_DD = 3V
-3
-40 -20
0 20 40 60 80
Remote Temperature (°C)
Figure 2.
100 120
TEMPERATURE ERROR vs
POWER-SUPPLY NOISE FREQUENCY
20
15
250mV_PP
10
5
0
-5
100mV_PP
-10
-15
-20
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Frequency (MHz)
Figure 4.
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
2.7
SUPPLY CURRENT vs V_DD
3.3
3.9
4.5
5.1
V_DD (V)
Figure 6.
-3
-40 -20
0
20
40
60
Local Temperature (°C)
Figure 3.
80 100
5
4
3
2
1
0
-1
-2
-3
-4
-5
10k
TEMPERATURE ERROR vs
COMMON-MODE NOISE FREQUENCY
50mV_PP
20mV_PP
100k
1M
10M
Frequency (Hz)
Figure 5.
100M
SUPPLY CURRENT vs TEMPERATURE
1.4
I_DD 5V (mA)
1.2
1.0
0.8
0.6
I_DD 3V (mA)
0.4
0.2
0
-40 -20 0
20 40 60 80
Temperature (°C)
Figure 7.
100 120
6
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