Philips 32PFL5604/78 - Page 27

IC Data Sheets
EN 27TCM3.2L LA 8.
2009-Jun-19
8.3 Diagram B01, MP1593 (IC U14)
Figure 8-3 Internal block diagram and pin configuration
Block Diagram
Pin Configuration
18520_307_090325.eps
090325
BS
IN
SW
GND
SS
EN
COMP
FB
1
2
3
4
8
7
6
5
TOP VIEW
EXPOSED PAD
ON BACKSIDE
CONNECT TO PIN 4
LOCKOUT
COMPARATOR
ERROR
AMPLIFIER
FREQUENCY
FOLDBACK
COMPARATOR
INTERNAL
REGULATORS
1.8V
SLOPE
COMP
CLK
CURRENT
COMPARATOR
CURRENT
SENSE
AMPLIFIER
SHUTDOWN
COMPARATOR
SS
8
COMP
6
IN
2
EN
7
GND
4
OSCILLATOR
40/385KHz
S
R
Q
SW
3
BS
M1
M2
1
5V
+
Q
0.7V
+
+
2.3V/
2.6V
+
1.22V0.7V
+
+
FB
5
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