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Lista de partido
LTC3774
Dual, Multiphase Current Mode Synchronous Controller
Linear Technology
LTC3774 Datasheet PDF : 38 Pages
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FUNCTIONAL BLOCK DIAGRAM
PHSMD
MODE/PLLIN
ITEMP
HIZB
FREQ
PLL-SYNC
MODE/SYNC
DETECT
TEMPSNS
0.6V
F
V
IN
5.5V
REG
INTV
CC
CLKOUT
I
COMP
OSC
S
RQ
–
+
I
REV
ILIM
SLOPE
COMPENSATION
INTV
CC
UVLO
1
R
I
THB
ACTIVE CLAMP
FCNT
ON
BURST EN
INTV
CC
SWITCH
LOGIC
AND
ANTISHOOT-
THROUGH
RUN
OV
PWM
PWMEN
SNSA
+
SNS
–
PGOOD
0.555V
UV
SLEEP
V
IN
0.6V
REF
0.55V
SS
RUN
EA
0.5V
1.22V
OV
1.25µA
0.645V
GND
ITH
R
C
C
C1
RUN
TK/SS C
SS
1µA/5µA
LTC3774
SNSD
+
AMP
DIFFAMP
V
OUT
1/2
V
OSNS+
20k
20k
V
OSNS–
3774 BD
NOTE: FUNCTIONAL BLOCK DIAGRAM SHOWS 1 CHANNEL ONLY. THE 2 CHANNELS ARE IDENTICAL.
3774f
For more information
www.linear.com/LTC3774
9
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