Philips 42PFL3604/60, Руководство по обслуживанию

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IC Data Sheets EN 22 TPS2.2E LA 8.
2009-May-29
8.4 TPS62203DBVRG4 (IC U7101)
Figure 8-4 Internal block diagram
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REF
REF
Lo a d Comp a r a tor
S kip Comp a r a tor
C u rrent Limit Comp a r a tor
P-Ch a nnel
Power MO S FET
Driver
S hoot-Thro u gh
Logic
Control
Logic
S oft S t a rt
1 MHz
O s cill a tor
Comp a r a tor
S
R
N-Ch a nnel
Power MO S FET
Comp a r a tor High
Comp a r a tor Low
Comp a r a tor Low 2
V
(COMP)
Sa wtooth
Gener a tor
V
I
Undervolt a ge
Locko u t
Bi as Su pply
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+
Comp a r a tor High
Comp a r a tor Low
Comp a r a tor Low 2
Compen sa tion
V
REF
= 0.5 V
R2
S ee Note
R1
V
I
EN
S W
D N G B F
Gm
Block Dia g ram
1 8 250_ 3 06_090210.ep s
090 3 1 8