AMC80 Datasheet, PDF (4/23 Pages) Texas Instruments – System Hardware Monitor with Two-Wire/SMBus Serial Interface

AMC80
SBOS559 – MAY 2011
ELECTRICAL CHARACTERISTICS (continued)
At T_A –40°C to +125°C and V+ = 3 V to 5.5 V, unless otherwise noted.
PARAMETER
FAN RPM-TO-DIGITAL CONVERTER
FAN_ERR Fan RPM error
f_CLK
Internal clock frequency
FAN_RPM FAN1 and FAN2 nominal input RPM
FSC
Full-scale count
POWER SUPPLY
V+
Specified voltage range
I_QA
Quiescent current, average
I_QSD
Quiescent current, shutdown mode
TEMPERATURE
T_A
Specified range
TEST CONDITIONS
Divisor = 1, fan count = 153
Divisor = 2, fan count = 153
Divisor = 3, fan count = 153
Divisor = 4, fan count = 153
V+ = 5.5 V
V+ = 3.8 V
V+ = 5.5 V
V+ = 3.8 V
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AMC80
MIN
TYP
–10
20.2
22.5
8800
4400
2200
1100
+3
-40
MAX UNIT
10 %
24.8 kHz
RPM
RPM
RPM
RPM
255 Counts
+5.5 V
100 µA
25 µA
100 µA
25 µA
+125 °C
PIN CONFIGURATION
PW PACKAGE
TSSOP-24
(TOP VIEW)
INT_IN 1
SDA 2
SCL 3
FAN1 4
FAN2 5
BTI 6
GPI/CI 7
GND 8
V+ 9
INT 10
GPO 11
NTEST_IN/RESET_IN 12
AMC80
24 A2
23 A1
22 A0/NTEST_OUT
21 CH0
20 CH1
19 CH2
18 CH3
17 CH4
16 CH5
15 CH6
14 AGND
13 RST_OUT/OS
4
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