THMC50 Datasheet, PDF (5/32 Pages) Texas Instruments – REMOTE/LOCAL TEMPERATURE MONITOR AND FAN CONTROLLER WITH SMBus INTERFACE

THMC50
REMOTE/LOCAL TEMPERATURE MONITOR AND
FAN CONTROLLER WITH SMBus INTERFACE
SLIS090 – JULY 1999
dc electrical characteristics, V_CC3 = V_(VCC3AUX) = 3.3 V, T_A = 25°C (unless otherwise noted)
(continued)
digital output: ADD/NTEST_OUT
PARAMETER
VOH
VOL
Logical 1 output voltage
Logical 0 output voltage
TEST CONDITIONS
IOUT = –3 mA at V(VCC3AUX) = 2.85 V
IOUT = 3 mA at V(VCC3AUX) = 3.8 V
MIN TYP MAX UNITS
2.4
V
0.4 V
open-drain digital outputs: THERM, INT
PARAMETER
VOL
IOH
Logical 0 output voltage
High level output current
TEST CONDITIONS
IOUT = 3 mA at V(VCC3AUX)= 3.8 V
VOUT = V(VCC3AUX) = 3.8 V
MIN TYP MAX UNITS
0.4 V
0.1 100 µA
open-drain digital outputs: RST, AUXRST
PARAMETER
VOL
IOH
Logical 0 output voltage
High level output current
TEST CONDITIONS
IOUT = 3 mA at V(VCC3AUX) = 3.8 V
IOUT = 3 mA at V(VCC3AUX) = 1 V
VOUT = V(VCC3AUX) = 3.8 V
MIN TYP MAX UNITS
0.4
V
0.4
0.1 100 µA
open-drain digital output: FAN_OFF
PARAMETER
VOL
IOH
Logical 0 output voltage
High level output current
TEST CONDITIONS
IOUT = 6 mA at V(VCC3AUX) = 3.8 V
VOUT = V(VCC3AUX) = 3.8 V
MIN TYP MAX UNITS
0.4 V
0.1 100 µA
open-drain SMBus output: SDA
PARAMETER
VOL
IOH
Logical 0 output voltage
High level output current
TEST CONDITIONS
IOUT = 3 mA at V(VCC3AUX)= 3.8 V
VOUT = V(VCC3AUX) = 3.8 V
MIN TYP MAX UNITS
0.4 V
0.1 100 µA
SMBus digital inputs: SCL, SDA
PARAMETER
VIH
Logical 1 input voltage
VIL
Logical 0 input voltage
TEST CONDITIONS
MIN
0.7 × V(VCC3AUX)
TYP
MAX
0.3 × V(VCC3AUX)
UNITS
V
V
digital inputs: FAN_SPD/NTEST_IN, ADD/NTEST_OUT, MR, GPI
PARAMETER
TEST CONDITIONS
VIH
Logical 1 input voltage (5 V)
VIL
Logical 0 input voltage (5 V)
VIH
Logical 1 input voltage (3.3 V)
VIL
Logical 0 input voltage (3.3 V)
IIH
Logical 1 input current
Logical 0 input current (except MR)
IIL
Logical 0 input current (MR)
VIN = V(VCC3AUX)
VIN = 0 V dc
C(IN) Digital input terminal capacitance
Design parameter only – not tested
MIN TYP
2.4
2
–0.005
0.005
165
20
MAX
0.8
0.4
–1
1
250
UNITS
V
V
V
V
mA
mA
µA
pF
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