Ic Data Sheets - Philips 32PFK4509/88 Service Manual

EN 60 8. TPM14.1E LA

8. IC Data Sheets

This chapter shows the internal block diagrams and pin
configurations of ICs that are drawn as "black boxes" in the
electrical diagrams (with the exception of "memory" and "logic"
ICs).
8.1 Diagram 10-8-2 System Power
Block diagram
8~14V Vin
MP8126 – LNB
EN
BYPASS
13V/18V
SGND
LINEDROP
POK
2014-May-16
IC Data Sheets
2, B02,MP8126DF-LF-Z (IC U751)
VDD TCAP
Internal
Regulator
Vref
13V / 18V
Switch
+1V Offset
POK
Figure 8-1 Internal block diagram
COMP
Boost
Driver
Charge
Pump
22kHz
Shaper
Current
Limit
EXTM
back to
div. table
SW
VBOOST
PGND
BST
VOUT
13V/18V
ILIMIT
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