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FN8808 데이터시트(PDF) 7 Page - Renesas Technology Corp

부품명 FN8808
상세설명  2-Phase Boost Controller with Integrated Drivers
PDF  44 Pages
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제조업체  RENESAS [Renesas Technology Corp]
홈페이지  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

FN8808 데이터시트(HTML) 7 Page - Renesas Technology Corp

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Block Diagram
FIGURE 3. BLOCK DIAGRAM
5.2V
LDO
VIN
PVCC
VCC
SS
1.2*VREF_1.6V
0.8*VREF_1.6V
PGOOD
Gm1
ATRK/DTRK
VREF_1.6V
FB
COMP
CLKOUT
PLLCOMP
FSYNC
SLOPE
R2
Q
S
R1
CSA
ISEN1P
ISEN1N
BOOT1
UG1
PH1
LG1
DE/PHDRP
DUPLICATE FOR EACH PHASE
ISEN1
105µA
OC2_PEAK_PH1
ISEN1
DROP_PHASE2
SGND
(BOTTOM PAD)
5µA
FAULT
FAULT LOGIC
PLLCOMP_SHORT
VOUT_OV
PVCC
PGND
PGND
OC_AVG
VREF_TRK
DE MODE
AND PHASE DROP MODE
SELECTION
IMON
2V
OC_AVG
Gm2
PROGRAMMABLE
ADAPTIVE DEAD
TIME
RDT
RBLANK
HIC/LATCH
LP
Filter
TRACK
VREF_2.5V
1k
M
U
X
SS
CLOCK
VRAMP
80µA
OC1_PH1
-48µA
OC_NEG_PH1
ISEN1
ISEN1
2µA
ISEN1
VCO
PLL
CLOCK
SLOPE
COMPENSATION
VIN_OV
OC2_PEAK_PH1
OC2_PEAK_PH2
ATRAK/
DTRK
÷ 48
POR
1.21V
EN
EN
EN
VIN/48
OTP
PLL
SOFT-START
DELAYAND
LOGIC
EN_SS
PWM CONTROL
ZCD_PH1
17µA
3.47V
VREF_TRK
0.3V
SS
HICCUP
/LATCHOFF
1.1V
PHASE_DROP
VREF_CC(1.6V)
1.21V
112µA
112µA
÷ 8
÷ 8
IOUT
VIMON
VFB
VFB
VIN_OV
FAULT
INITIALIZATION
DELAY
EN_DE
PHASE DROP
CONTROL
EN_PHASE_DROP
HICCUP
RETRY
DELAY
LATCH-OFF
LOGIC
SS_DONE
EN_HICCP
EN_LATCHOFF
ISEN1
ISEN2
(PHASE1)
(PHASE2)
PWM
COMPARATOR
CMP_PD
CMP_OCAVG
DCC
VOUT_OV
VOUT_UV
DELAY
EN
PLL_LOCK
+
+
+
-
+
-
+
-
+
-
+
-



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