Dual RPM-Based PWM Fan Controller with Hardware Thermal Shutdown
Datasheet
Table 3.2 Electrical Specifications (continued)
VDD = 3V to 3.6V, VDD_5V = 4.5V to 5.5V, T
A
= -40°C to 85°C, all Typical values at T
A
= 27°C unless otherwise
noted.
CHARACTERISTIC
Output High Voltage
Output Low Voltage
Leakage current
SYMBOL
V
OH
V
OL
I
LEAK
MIN
VDD -
0.4
0.4
±5
TYP
MAX
UNIT
V
V
uA
CONDITIONS
4 mA current drive
4 mA current sink
ALERT and SYS_SHDN pins
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3.2
SMBus Electrical Specifications (client mode)
Table 3.3 SMBus Electrical Specifications
VDD= 3V to 3.6V, T
A
= -40°C to 85°C Typical values are at T
A
= 27°C unless otherwise noted.
CHARACTERISTIC
SYMBOL
MIN
TYP
MAX
UNITS
CONDITIONS
SMBus Interface
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Input High/Low Current
Input Capacitance
V
IH
V
IL
V
OH
V
OL
I
IH /
I
IL
C
IN
5
SMBus Timing
Clock Frequency
Spike Suppression
Bus free time Start to
Stop
Setup Time: Start
Setup Time: Stop
Data Hold Time
Data Setup Time
f
SMB
t
SP
t
BUF
t
SU:STA
t
SU:STP
t
HD:DAT
t
SU:DAT
1.3
0.6
0.6
0.6
0.6
6
72
10
400
50
kHz
ns
us
us
us
us
us
VDD
- 0.4
0.4
±5
2.0
0.8
V
V
V
V
uA
pF
4 mA current sink
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Revision 1.74 (05-08-08)
16
SMSC EMC2104
DATASHEET
SMSC [ SMSC CORPORATION ]
