emc2106 Standard Microsystems Corp., emc2106 Datasheet - Page 17

• Manufacturer Part Number: emc2106
• Description: Emc2106 Dual Rpm-based Linear Fan Controller With Hardware Thermal Shutdown
• Manufacturer: Standard Microsystems Corp.

Dual RPM-Based Linear Fan Controller with Hardware Thermal Shutdown
Datasheet
SMSC EMC2106
VDD = 3V to 3.6V, VDD_5V = 4.5V to 5.5V, T
DC Short Circuit
Current Limit
Short circuit delay
Output Capacitive
Load
DAC Output High
Voltage
DAC Output Low
Voltage
Output Voltage
Accuracy
Fan Drive Current
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
V
SYMBOL
V
TSD
T
the device. The internal temperature sensor will return T
Δ
I
DAC2_OH
TSD
C
DAC2_OL
Δ
Δ
TACH
SHORT
DIE
I
I
V
t
DAC2
V
V
LEAK
LOAD
V
DFS
TACH
TACH
V
DAC2
OH
OL
HYST
IH
IL
TH
refers to the internal die temperature and may not match T
Table 3.2 Electrical Specifications (continued)
VDD -
V
MIN
480
0.2
2.0
0.4
DD
-1
RPM Based Fan Controller
-
Linear DAC Fan Driver
A
= -40°C to 85°C, all Typical values at T
Thermal Shutdown
DATASHEET
Digital I/O pins
TYP
±2.5
700
150
±1
50
2
noted.
17
16000
MAX
100
0.3
0.8
0.4
±2
±5
±5
2
1
UNIT
RPM
mA
mA
uF
uA
°C
°C
%
%
%
V
V
V
V
V
V
s
Sourcing current, Thermal
shutdown not triggered,
FAN_OUT = 0V
Z
I
I
Measured at 3/4 full scale -
Direct Setting Mode
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
DAC2
DAC2
ESR
.
A
< 100m
= 1mA current source
= -1mA current sink
= 27°C unless otherwise
CONDITIONS
DIE
A
due to self heating of
Revision 1.74 (05-08-08)
< 100°C
Ω
at 10kHz