THV3056_Rev.2.00_E
THV3056
3ch Buck/Boost 2ch CP 1ch HVLDO 1ch LVLDO Controller
Description
THV3056 is a 3ch Buck/Boost Controller IC which enables
to design simple & low cost multi-channel power supply
system.
Ch-1(fixed Boost), ch-2 and ch-3(fixed Buck) are PWM
controllers. As to ch-2, the output of 1.2V is available
because the reference voltage of ch-2 is 0.85V.
VGH and VGL are selectable Positive/Negative charge
pumps and PFM controller.
Built-in high voltage LDO and Vcom buffer amplifier
facilitate to design various power supply systems for large
scale TFT panels.
THV3056 achieves easy phase compensation even with a
ceramic capacitor for the output.
SS_1/2/3, SS_SW, DTC1/2/3, DTC_VGH/DTC_VGL and
SCP help to design user defined soft start time, dead time
and timer latch delay time. Two types of startup sequence
are selectable by controlling SEL1 pin.
THV3056 is suitable for power supply system of TFT LCD
bias and system board with multi -channel power supply.
Features
• QFN 64 pin package
• Input Voltage range : 4.2~ 15V
• Push Pull output for direct Power MOS driving
• Ceramic Capacitors are available for output
• Complete PWM mode controller
• Positive/Negative charge pumps (selectable PFM mode)
• Adjustable switching frequency up to 1MHz
• Timer Latch Protection
• System UVLO function
• Adjustable Soft Start time
• Adjustable Timer Latch Delay time
• Adjustable Dead Time Control
• Thermal Shutdown
• Ch-1, Boost converter
• Ch-2, Synchronous Buck converter
• Ch-3, Boost/Buck/Inverting converter
• High voltage LDO
• LDO of 3.3V
• Vcom Buffer Amplifier
Applications
• TFT-LCD Bias power supply
Pin Assignment
OUT_HLDO
50
INV_HLDO
49
OUT_VGH
OUT_VGL
PGND_CP
V_OUT3
V_VGH
PGND3
VO_1IN
51
V_VGL
XTEST
OUT3
VCC
NC
NC
NC
52
64
63
62
61
60
59
58
57
56
55
54
53
OUT1
PGND1
VO_1SW
SEL1
SEL2
VREG5IN
VREG5
SYUVLO
SCP
FB1
INV1
FB2
INV2
FB3
INV3
RT
1
2
3
4
5
6
7
8
9
10
11
(TOP VIEW)
12
13
14
15
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
16
48
47
46
45
44
43
NON_VGL
VGL_UVP
INV_VGH
VCIN
VCFB
GNDVC
VCOUT
V_VC
PGND2
OUT_L2
LL2
OUT_H2
BST2
V_LLDO
SS_LLDO
OUT_LLDO
QFN 64PIN
42
41
40
Exposed Pad
39
38
65GNDEXP
37
36
35
34
33
32
PUP_PG
DTC_VGL
SS1
SGND1
PG3
DTC_VGH
VREF
DTC1
DTC2
DTC3
SGND2
Copyright©2010 THine Electronics, Inc.
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THine Electronics, Inc.
TCON_XRST
SS_SW
PG2
SS2
SS3
THINE [ THINE ELECTRONICS, INC. ]
