Philips 32PFL3406D/78 - IC Data Sheets; Diagram B01, Type TPS54386 (IC7116 and 7117)

IC Data Sheets
EN 36 L11M1.1L LA8.
2011-Jun-24
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8. IC Data Sheets
This section shows the internal block diagrams and pin layouts
of ICs that are drawn as "black boxes" in the electrical diagrams
(with the exception of "memory" and "logic" ICs).
8.1 Diagram B01, Type TPS54386 (IC7116 and 7117)
Figure 8-1 Internal block diagram and pin configuration
18980_300_100402.eps
100402
PIN
CONNECTIONS
1
2
3
4
14
13
12
11
PVDD2
BOOT2
SW2
BP
PVDD1
BOOT1
SW1
GND
5
6
7
10
9
8
SEQ
ILIM2
FB2
EN1
EN2
FB1
Thermal Pad
(bottom side)
HTSSOP (PWP)
(Top View)
BLOCK DIAGRAM
7FB1
+
Soft Start
1
C
COMP
+
SQ
QR
R
+
Current
Comparator
BP
f(I
DRAIN1
)+DC(ofst)
2
1
3
Anti-Cross
Conduction
1.2 MHz
Oscilator
Divide
by 2/4
Ramp
Gen 1
Ramp
Gen 2
CLK1
CLK2
BP
CLK1
Weak
Pull-Down
MOSFET
5EN1
6EN2
6A6A
VDD2
Internal
Control
10SEQ
150 k
150 k
Output
Undervoltage
Detect
BP
FB1
FB2
CLK1
4GND
8FB2
+
Soft Start
2
C
COMP
+
SQ
QR
R
+
Current
Comparator
BP
13
14
12
Anti-Cross
Conduction
BP
CLK2
Weak
Pull-Down
MOSFET
11BP
9ILIM2
150 k
150 k
BP
CLK2
4GND
Level
Select
5.25-V
Regulator
References
BOOT1
PVDD1
SW1
BOOT2
PVDD2
SW2
f(I
DRAIN2
)+DC(ofst)
0.8 V
REF
I
MAX2
(Set to one of three limits)
f(I
DRAIN1
)
f(I
MAX1
)
Overcurrent Comp
f(I
SLOPE1
)
Level
Shift
Level
Shift
f(I
DRAIN2
)
f(I
MAX2
)
f(I
SLOPE2
)
FET
Switch
TSD
PVDD2
f(I
SLOPE1
)
f(I
SLOPE2
)
SD1
SD2
UVLO
0.8 V
REF
SD2
0.8 V
REF
SD1
UDG-07124
Overcurrent Comp
R
COMP
R
COMP