Pioneer PDP-427XD - Block Diagram

PDP-427XD
204
1234
1234
C
D
F
A
B
E
• Regulator IC
LTC3414EFE (MAIN ASSY: IC4102)
Block Diagram
Pin Arrangement (Top view)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PGND
RT
SYNC/MODE
RUN/SS
SGND
NC
SW
SW
PGND
PGND
PGOOD
NC
SW
SW
PGND
21
V
FB
I TH
SV IN
PV IN
PV IN
16
19
17
4
2
5 18
7
14
OSCILLATOR
LOGIC
3
0.74V
0.86V
RUN
13
12
9
8
SGND
21
BCLAMP
RUN/SS
PGOOD
SYNC/MODE
PGND
PGND
PGND
PGND
SW
SW
SW
SW
10
11
20
1
SYNC/MODE
+
V
0.8V
SVIN ITH
EXPOSED PAD
VOLTAGE
REFERENCE
SLOPE
COMPENSATION
RECOVERY
PMOS CURRENT
COMPARATOR
SLOPE
COMPENSATION
BURST
COMPARATOR
ERROR
AMPLIFIER
VFB
NMOS CURRENT
COMPARATOR
P-CH
N-CH
CURRENT
REVERSAL
COMPARTOR
PVIN PVIN
RT
Pin Function
No. Pin Name I/O Pin Function No. Pin Name I/O Pin Function
1 PGND − Power Ground. 12 SW − Switch Node Connection to Inductor.
2RTIOscillator Resistor Input. 13 SW − Switch Node Connection to Inductor.
3 SYNC/MODE I
Mode Select and External Clock
Synchronization Input.
14 PVIN −
Power Input Supply.
4 RUN/SS I Run Control and Soft-Start Input. 15 NC − Open. No internal connection.
5 SGND − Signal Ground. 16 SVIN I
Signal Input Supply.
6NC − Open. No internal connection. 17 PGOOD O Power Good Output.
7 PVIN −
Power Input Supply
18 ITH − Error Amplifier Compensation Point.
8SW − Switch Node Connection to Inductor. 19 VFB I Feedback Pin.
9SW − Switch Node Connection to Inductor. 20 PGND − Power Ground.
10 PGND − Power Ground.
21 Exposed Pad −
Should be connected to SGND and
soldered to the PCB.
11 PGND − Power Ground.