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參數資料
| 型號： | MAX6665ASA70+T |
| 廠商： | Maxim Integrated |
| 文件頁數： | 1/6頁 |
| 文件大小： | 130K |
| 描述： | IC FAN CNTRL/DRVR 8-SOIC |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 功能： | 風扇控制，溫度監控器 |
| 傳感器類型： | 內部 |
| 感應溫度： | 70°C 分界點 |
| 精確度： | ±3°C（最小值） |
| 拓撲： | 風扇控制 |
| 輸出類型： | 邏輯 |
| 輸出警報： | 無 |
| 輸出風扇： | 是 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm Width）裸露焊盤 |
| 供應商設備封裝： | 8-SOICN 裸露焊盤 |
| 包裝： | 帶卷 (TR) |
General Description
The MAX6665 is a fully integrated thermal switch with
an internal power transistor for driving a cooling fan
rated up to 24V and 250mA. When the MAX6665s tem-
perature rises above a factory-programmed threshold,
the FANOUT pin becomes active and powers the fan.
The MAX6665 is available with factory-programmed fan
activation threshold temperatures from +40癈 to +70癈
in 5癈 increments. Accuracy of the fan activation trip
point is ?癈 (typ) and ?癈 (max). The trip points hys-
teresis is pin selectable to 1癈, 4癈, or 8癈. Two open-
drain logic outputs indicate overtemperature con-
ditions: WARN is activated when the temperature is
15癈 above the fan activation threshold, and OT is acti-
vated when the temperature is 30癈 above the thresh-
old. These features can be used to safely power down
systems that are overheated.
The MAX6665 operates from a +2.7V to +5.5V power
supply, and the associated fan can be powered from
4.5V to 24V. It is available in an 8-pin SO package and
operates from -40癈 to +125癈.
Applications
Notebook and Desktop Computers
Servers
PC Power Supplies
Laboratory Instruments
Card Racks
Features
o On-Chip 250mA Fan Switch
o No External Components Required
o Factory-Programmed Thresholds
o Two Overtemperature Warning Signals
o Pin-Selectable 1?/SPAN>C, 4?/SPAN>C, and 8?/SPAN>C Hysteresis
o Low 65?/SPAN>A Supply Current
Fan Controller/Driver with Factory-
Programmed Temperature Thresholds
________________________________________________________________ Maxim Integrated Products 1
FANON
1
2
8
7 V
DD
HYST
GND
SO
TOP VIEW
3
4
6
5
MAX6665
FORCEON
FANOUT
WARN
OT
Pin Configuration
V
DD
FANON
GND
HYST
V
DD
+3.3V
+4.5V TO +24V
100mA TO 250mA
COOLING FAN
100k&
1礔
MAX6665
FORCEON
FANOUT
WARN
OT
V
DD
100k&
Typical Operating Circuit
19-2056; Rev 0; 5/01
Ordering Information
PART
TEMP.
RANGE
PIN-
PACKAGE
THRESHOLD
MAX6665ASA40
-40癈 to
+125癈
8 SO-EP*
40癈
MAX6665ASA45
-40癈 to
+125癈
8 SO-EP*
45癈
MAX6665ASA50
-40癈 to
+125癈
8 SO-EP*
50癈
MAX6665ASA55
-40癈 to
+125癈
8 SO-EP*
55癈
MAX6665ASA60
-40癈 to
+125癈
8 SO-EP*
60癈
MAX6665ASA65
-40癈 to
+125癈
8 SO-EP*
65癈
MAX6665ASA70
-40癈 to
+125癈
8 SO-EP*
70癈
*Exposed paddle
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxims website at www.maxim-ic.com.
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