RT9911PQV RICHTEK [Richtek Technology Corporation], RT9911PQV Datasheet - Page 21

• Manufacturer Part Number: RT9911PQV
• Description: 6 Channel DC/DC Converters
• Manufacturer: RICHTEK [Richtek Technology Corporation]

SELECT
COMP1
COMP3
DS9911-04 August 2007
COMP6
OSC
OSC
CFB6
0.8V
0.8V
CS3
FB1
FB3
OSC
0.2V
EN6
Current
Current
Control
Diming
Sense
Sense
+
-
+
-
compensation
compensation
+
-
+
Triangle
Slope
Slope
Wave
+
-
-
+
-
-
+
-
Figure 3(a)
Figure 3(c)
Figure 3(e)
Protection
S
S
R
R
S
R
Protection
Fault
Protection
Q
Q
Q
Fault
Fault
Figure 3. Detailed Functional Block for each channel
Logic
Logic
Logic
Driver
Driver
Driver
PVDD1
PGND1
PVDD3
DRP3
DRN3
PGND2
PVDD5
EXT6
GND
LX1
COMP2
COMP4
COMP5
OSC
OSC
0.8V
1.0V
GND
FB2
FB4
OSC
FB5
Current
Sense
+
-
+
-
+
-
compensation
Triangle
Triangle
Slope
Wave
Wave
+
-
+
-
-
+
-
Figure 3(b)
Figure 3(d)
Figure 3(f)
S
S
R
R
S
R
Protection
Q
Q
Q
Fault
Logic
Logic
Logic
RT9911
www.richtek.com
Driver
Driver
Driver
PVDD2
PGND2
PVDD5
EXT4
GND
LX2
21
PVDD5
EXT5
GND