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HV9989 датащи(PDF) 13 Page - Microchip Technology

номер детали HV9989
подробное описание детали  Three-Channel CCM/DCM Boost LED Driver
PDF  21 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

HV9989 датащи(HTML) 13 Page - Microchip Technology

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2014-2026 Microchip Technology Inc. and its subsidiaries
DS20005296C-page 13
HV9989
FIGURE 3-6:
INTERNAL BLOCK DIAGRAM
1/12
CLKA
CLKB
CLKC
CLK
FLG
PWMD1
FLT1
OVP1
PWMD2
FLT2
OVP2
SKIP
SC
PWMD3
FLT3
OVP3
+
-
Blanking
CLKA
Linear
Regulator
VIN
UVLO
POR
AGND
GATE1
CS1
PGND1
REF1
FDBK1
COMP1
GATE2
CS2
PGND2
REF2
FDBK2
COMP2
GATE3
CS3
PGND3
REF3
FDBK3
COMP3
+
-
PWMDA
+
-
2
SCDA
+
-
CLKB
+
-
+
-
1
11R
R
PWMDB
+
-
2
SCDB
REF
Bandgap
+
-
3
+
-
FCC
1
11R
R
PWMDC
PWMDC
+
-
2
SCDC
DIS
REF
VDD
EN
PWMDC
0
120
240
POR
+
-
REF
POR
+
-
REF
S
R
Q
Q
POR
OVC
FCA
FCB
FCC
Timer
OVC
PWMDA_dly
Td
PWMDC_dly
VIN_SNS
FG3
IN
IN
PWMDA
1
CLKA
RC = 50ns
RC = 50ns
I(SC)
VDD1
VDD2
VDD3
OVC
S
R
Q
Q
S
R
Q
Q
OVB
S
R
Q
Q
OVA
S
R
Q
Q
S
R
Q
Q
MAXDUTYC
FCB
OVB
MAXDUTYB
FCA
OVA
MAXDUTYA
CLKA
S
R
Q
Q
CLKC
S
R
Q
Q
PWMDB
PWMDC
2
1
Blanking
CLKB
CLKC
Blanking
PWMDC
Blanking
PWMDB
Blanking
PWMDA
FG1
FG2
FG3
FCC
Td
PWMDB_dly
Td
PWMDA_dly
PWMDB
OVB
FCB
PWMDA
OVA
FCA
2
CLKB
2
CLKB
1
CLKA
3
CLKC
3
CLKC
RC = 50ns
Blanking
I(SC)*k
I(SC)*k
I(SC)*k
1
11R
R
1
DIS
2
DIS
3
MAXDUTYA
CLKA
CLKA
PWMDA
D
MAX
Logic A
MAXDUTYB
CLKB
CLKB
PWMDB
MAXDUTYC
CLKC
CLKC
PWMDC
S
R
Q
Q
PWMDB_dly
PWMDC_dly
FG2
FG1
IN
PWMDB
PWMDA
Current
Mirror
D
MAX
Logic B
D
MAX
Logic C



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