參數(shù)資料
型號(hào): MAX6684
廠商: Maxim Integrated Products, Inc.
英文描述: QUADRUPLE 2-INPUT POSITIVE-OR GATES 14-CDIP -55 to 125
中文描述: 風(fēng)扇失效檢測(cè)器,集成電源開(kāi)關(guān)
文件頁(yè)數(shù): 3/7頁(yè)
文件大小: 168K
代理商: MAX6684
M
Fan-Failure Detector with Integrated
Power Switch
_______________________________________________________________________________________
3
R
DSON
vs. TEMPERATURE
M
TEMPERATURE (
°
C)
R
D
(
)
60
35
10
-15
0.4
0.8
1.2
1.6
2.0
0
-40
85
V
CC
= 3V
I
SENSE
= 300mA
V
CC
= 5.5V
SUPPLY CURRENT vs. TEMPERATURE
M
TEMPERATURE (
°
C)
S
μ
A
60
35
10
-15
225
250
275
300
200
-40
85
V
CC
= 3V
NO LOAD
V
CC
= 5.5V
OVERCURRENT OPERATION
M
20ms/div
0
0A
I
SENSE
500mA/div
V
5V/div
V
SENSE
2V/div
0
Typical Operating Characteristics
(V
CC
= 3.3V, T
A
= +25
°
C, unless otherwise noted.)
Pin Description
PIN
NAME
FUNCTION
1
SENSE
Positive Current-Sensing Terminal. Connect SENSE to low side of fan.
2
FAIL
Active-Low, Open-Drain Fan-Failure Output
3
GND
Ground
4
FC-
Connect to 0.1μF capacitor for most locked-rotor detection applications. To detect minimum speed,
select C
F
according to
Minimum Speed and Locked-Rotor Detection.
Connect to 0.1
μ
F capacitor for most locked-rotor detection applications. To detect minimum speed,
select C
F
according to
Minimum Speed and Locked-Rotor Detection.
5
FC+
6
V
CC
Supply Voltage Input. Bypass V
CC
to GND with a 1μF capacitor.
7
OFF
Acti ve- Low Fan- C ontr ol Inp ut. D ve
O FF
hi g h or l eave fl oati ng to tur n fan on. D ve
O FF
l ow to tur n fan off.
8
PGND
Power Ground. Connect to GND.
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