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ADP1850ACPZ-R7 Arkusz danych(PDF) 6 Page - Analog Devices

Numer części ADP1850ACPZ-R7
Szczegółowy opis  Wide Range Input, Dual/Two-Phase, DC-to-DC Synchronous Buck Controller
PDF  32 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
Logo AD - Analog Devices

ADP1850ACPZ-R7 Arkusz danych(HTML) 6 Page - Analog Devices

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ADP1850
Data Sheet
Rev. C | Page 6 of 32
SIMPLIFIED BLOCK DIAGRAM
DUPLICATE FOR
CHANNEL 2
BST1
PGND1
+
–
+
–
+
–
+
–
+
–
+
–
FB1
0.6V
OV
UV
PGOOD1
CURRENT SENSE
AMPLIFIER
DH1
DL1
ILIM1
SW1
VREF = 0.6V
6.5µA
+
+
–
ERROR
AMPLIFIER
FB1
COMP1
SS1
PWM
COMPARATOR
SLOPE COMP AND
RAMP GENERATOR
CURRENT
LIMIT
CONTROL
VDL
RAMP1
50µA
5V
Gm
OV1
+
TRK1
CS GAIN
DRIVER LOGIC
CONTROL AND
STATE
MACHINE
OVER_LIM1
PULSE SKIP
OVER_LIM1
LDO
LOGIC
EN1
EN2
VIN
UVLO
OSCILLATOR
FREQ
SYNC
PH1
PH2
REF
VCCO
OV
UV
0.6V
THERMAL
SHUTDOWN
AGND
0.6V
+
–
+
–
VCCO
VDL
FAULT
OV1
LOGIC
OVER_LIM1
OV1
EN1
EN1_SW
LOGIC
UV1
1kΩ
0.9V
DCM
ZERO CROSS
DETECT
12kΩ
AV = 3, 6, 12, 24
VCCO
SYNC
EN1_SW
EN2_SW
1MΩ
–
+
Figure 2.



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