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参数资料
| 型号： | CMX644AD2 |
| 厂商： | CML MICROSYSTEMS PLC |
| 元件分类： | 调制器/解调器 |
| 英文描述： | 1.2 kbps DATA, MODEM, PDSO24 |
| 封装： | SOIC-24 |
| 文件页数： | 7/34页 |
| 文件大小： | 1174K |
| 代理商： | CMX644AD2 |
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RPM-Based Fan Controller with HW Thermal Shutdown
Datasheet
SMSC EMC2103
15
Revision 0.90 (08-19-08)
DATASHEET
3.1
Electrical Specifications
Table 3.2 Electrical Specifications
VDD = 3V to 3.6V, TA = -40°C to 125°C, all Typical values at TA = 27°C unless otherwise noted.
CHARACTERISTIC
SYMBOL
MIN
TYP
MAX
UNIT
CONDITIONS
DC Power
Supply Voltage
VDD
33.3
3.6
V
Supply Current
IDD
1.3
1.8
mA
4 Conversions / second, Fan
Driver active at maximum PWM
frequency, Dynamic Averaging
Enabled (EMC2103-2)
11.5
mA
4 Conversions / second, Fan
Driver active at maximum PWM
frequency, Dynamic Averaging
Enabled (EMC2103-1)
450
750
uA
1 Conversions / second, Fan
Driver not active, Dynamic
Averaging Disabled
First Conversion
Ready
tCONV_T
175
300
ms
Time after power up before all
channels updated
SMBus Delay
tSMB_D
10
15
ms
Time before SMBus
communications should be sent
by host
External Temperature Monitors
Temperature
Accuracy
±0.5
±1
°C
60°C < TDIODE < 125°C
30°C < TA < 100°C
±1
±2
°C
-40°C < TDIODE < 125°C
Temperature
Resolution
0.125
°C
Diode decoupling
capacitor
CFILTER
2200
2700
pF
Connected across external
diode, CPU, GPU, or AMD diode
Resistance Error
Corrected
RSERIES
100
Ohm
Sum of series resistance in both
DP and DN lines
Internal Temperature Monitor
Temperature
Accuracy
TDIE
±1
±2
°C
-40°C < TA < 125°C
TDIE
±1.5
°C
0°C < TA < 85°C
Temperature
Resolution
0.125
°C
PWM Fan Driver
PWM Resolution
PWM
256
Steps
PWM Duty Cycle
DUTY
0
100
%
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