emc2105 Standard Microsystems Corp., emc2105 Datasheet - Page 16

• Manufacturer Part Number: emc2105
• Description: Emc2105 Rpm-based High Side Fan Controller With Hardware Thermal Shutdown
• Manufacturer: Standard Microsystems Corp.

Revision 1.74 (05-08-08)
VDD = 3V to 3.6V, VDD_5V = 4.5V to 5.5V, T
Output Capacitive
Load
Tachometer Range
Tachometer Setting
Accuracy
Thermal Shutdown
Threshold
Thermal Shutdown
Hysteresis
Output High Voltage
Output Low Voltage
Leakage current
CHARACTERISTIC
Input High Voltage
Input Low Voltage
Note 3.4
SYMBOL
TSD
T
the device. The internal temperature sensor will return T
TSD
C
Δ
Δ
TACH
DIE
I
V
V
LEAK
LOAD
V
TACH
TACH
V
OH
OL
HYST
IH
IL
TH
refers to the internal die temperature and may not match T
Table 3.2 Electrical Specifications (continued)
VDD -
MIN
480
2.0
0.4
RPM Based Fan Controller
A
= -40°C to 85°C, all Typical values at T
Thermal Shutdown
DATASHEET
Digital I/O pins
RPM-Based High Side Fan Controller with Hardware Thermal Shutdown
TYP
±2.5
150
±1
50
noted.
16
16000
MAX
100
0.8
0.4
±2
±5
±5
UNIT
RPM
uF
uA
°C
°C
%
%
V
V
V
V
Z
External oscillator 32.768kHz
Internal Oscillator
40°C < T
4 mA current drive
4 mA current sink
ALERT and SYS_SHDN pins
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DIE
ESR
.
A
< 100m
= 27°C unless otherwise
CONDITIONS
DIE
A
due to self heating of
< 100°C
Ω
at 10kHz
SMSC EMC2105
Datasheet