MP1026 – CCFL DRIVER FOR HANDHELD DISPLAY APPLICATIONS
BLOCK DIAGRAM
Vdd
DBrt
Bosc
6, 15
ENABLE
5
En
4
20 AGnd
10 BtL
BURST
DIMMING
OSCILLATOR
V
DRV
3
REF
RAMP
--
+
BURST
DIMMING
CLOCK
7
Batt
+
--
8
OutL
+
--
CONTROL
LOGIC
9, 12 PGnd
13 OutR
--
+
--
+
14 Batt
11 BtR
SHORT
CIRCUIT
ISFB
19
+
FT
17
PROTECTION
--
1.2V
OPEN LAMP
FAULT
(OLF)
18 VLFB
+
--
HALF
--
+
WAVE
2
1
IL
COMP
RECTIFIER
Comp
16
GM
Abrt
MP1026_BD01
Figure 1—Functional Block Diagram
MP1026 Rev. 1.6
9/24/2007
www.MonolithicPower.com
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4
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