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#
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Rev. VOLTAGE SENSORING CIRCUIT 0.6: W83L784AR application circuit.
-34
: 12-34
-
5 -6'

-
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- #
#/ ;;:
# # #:
0$ 0$$4? &
-
-
-0
1 : .'.1$9 2&'9 4C$869 $89 : #
: #
:
.'6' .'6'# 831$ 831$#
: 869 3-$9 & # / ;
.'6'7@3 .'6'#7@3# 831$ 831$# .'.1$97@3 2&'9 869 3-$9 & - #;
: -4.
:> 66&5 -$766
- 1$766 1$#766# -4. -6' 44$9 -6'#A5 -6'B -6' A-0$B @'& 1$#.1$97@3 #
; / # -$766 -$#766# -4. -34 5 -6' -0$ 44$9
eg: TO PIIX4
TEMPERATURE SENSORING CIRCUIT
1$#.1$9
SMARTFAN1 Speed Control Circuit
./- # :
66&D ./- -4.
:>
: # #: .'6' ;
:
# :
:
= ;
< #
& '
$486$3 -$#766#
831$ PWMOUT1 is open-drain default.
;
:
= 83.4$'

+
Signal Power GND
Note: is for CPU1 temperature and SMARTFAN 1 1. CPUT1
2. CPUT2 is for CPU2 temperature and SMARTFAN 2
4&4
When 784 is power-down, Fan5VCC should be turned off.
- :
/ : 8&$ 8:
&

SMARTFAN2 Speed Control Circuit
./- : : =# ;
./-
#
# :
&# ' <# # 4&4
: ## #: .'6'# /
:
uP
831$#
#
:
= 83.4$'
/
+
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44$9 .'.1$9 1$#.1$9 $
2&'9
PWMOUT2 is open-drain default. When 784 is power-down, Fan5VCC should be turned off.
6'03'&44$3'63 &'( !"
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