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THV3056 데이터시트 PDF




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부품번호 THV3056 기능
기능 3ch Buck/Boost 2ch CP 1ch HVLDO 1ch LVLDO Controller
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THV3056 데이터시트, 핀배열, 회로
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
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
12
13
14
15
16
QFN 64PIN
Exposed Pad
(TOP VIEW)
65GNDEXP
48 NON_VGL
47 VGL_UVP
46 INV_VGH
45 VCIN
44 VCFB
43 GNDVC
42 VCOUT
41 V_VC
40 PGND2
39 OUT_L2
38 LL2
37 OUT_H2
36 BST2
35 V_LLDO
34 SS_LLDO
33 OUT_LLDO
Copyright©2010 THine Electronics, Inc.
1/32
THine Electronics, Inc.




THV3056 pdf, 반도체, 판매, 대치품
THV3056_Rev.2.00_E
Pin Description
Pin#
10
12
14
11
13
15
18
19
20
23
24
25
17
46
48
26
27
22
4
5
41
47
Symbol
FB1
FB2
FB3
INV1
INV2
INV3
SS1
SS2
SS3
DTC1
DTC2
DTC3
SS_SW
INV_VGH
NON_VGL
DTC_VGH
DTC_VGL
VREF
SEL1
SEL2
V_VC
VGL_UVP
Function
ch-1,ch-2,ch-3
error amplifier output
Description
Ch-1,2,3 error amplifier outputs for phase compensation by connecting
resistors and capacitors between FB_1,2,3 and INV_1,2,3.
ch-1,ch-2,ch3 error ampli- Ch-1,2,3 error amp inverting inputs. The voltage on INV1 and INV3 are
fier inverting input
1.2V, and INV2 is 0.85V, in the normal operation.
ch-1,ch-2,ch-3 soft start
Soft start pin for ch-1/2/3. Voltage at power-on is ground level. Constant
1mA current source charges capacitors connected to these pins. Soft
start time can be adjusted by external capacitors connected these pins.
On/Off control is available by connecting the external open drain ports
or PG pins.
ch-1,ch-2,ch-3
Dead Time Control
To limit the maximum duty cycle on ch-1,2,3.
See Functional Description “DTC” for detail.
ch-1 soft start of external
PMOS switch
VGH comparator invert-
ing input
Ch-1 external PMOS switch for soft start. Voltage at power-on is
ground level. Constant 1mA current source charges the capacitor con-
nected to this pin. Soft start time of PMOS transistor to VO_1SW can be
adjusted by external capacitors connected this pin. On/Off control is
available by connecting the external open drain ports or PG pins.
VGH comparator inverting input.
The voltage on this pin is 1.2V in the normal operation.
VGL comparator non-
inverting input
VGL comparator non-inverting input.
The voltage on this pin is 0V in the normal operation.
VGH
(charge pump +)control
VGL
(charge pump -)control
VGH, VHL charge pump control pins. When the input voltage is High
level, these pins are On state. Low level, Off state.
Using as charge pump, please set the duty cycle of 50%.
In PFM mode, these pin operate as DTC.
See Functional Description “DTC” for detail.
Reference voltage
Startup sequence select
Reference voltage of 1.2V. Connect this pin with an external capacitor
of 0.01uF for stability.
The maximum load current is 1mA.
Two type of startup sequence are selectable by connecting SEL1 pin to
GND or VREG5 pin. See Functional Description “Startup Sequence”.
Charge pump UVP timer latch Charge pump UVP timer latch On/Off control is available by SEL2 pin.
On/Off control
See Functional Description “SCP” for detail.
Voltage supply
for Vcom output
Voltage supply for Vcom output.
UVP voltage of VGL set pin
UVP voltage can be set optionally by connecting an external resistor to
this pin. Without external resistor, UVP voltage is set at 50% of the ref-
erence voltage.
Copyright©2010 THine Electronics, Inc.
4/32
THine Electronics, Inc.

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THV3056 전자부품, 판매, 대치품
THV3056_Rev.2.00_E
Absolute Maximum Ratings
Parameter
Input power supply voltage
INV1/2/3, INV_VGH/INV_VGL, FB1/2/3, NON_VGL,
DTC1/2/3, DTC_VGH/DTC_VGL, SS1/2/3, SS_SW, PG2/3,
SYSUVLO, SCP, SEL1/2, VREG5IN, VGL_UVP
BST2-LL2, OUT_H2-LL2
XTEST
VCIN, VCFB
OUT1, VREF, RT, OUT_L2, VREG5, PUP_PG, TCON_XRST
VCOUT, OUT_HLDO, OUT_VGL, OUT_VGH, VO_1SW
LL2, OUT3
V_VGL, V_VGH, V_OUT3, V_VC
BST2, OUT_H2
Output Current
OUT1, OUT_L2, OUT_H2, OUT3, OUT_VGH, OUT_VGL
Output Current
OUT_HLDO
Power dissipation
Junction temperature
Operating temperature
Storage temperature
Lead temperature for soldering
Symbol
Vcc
VL_in1
VL_in2
VH_in1
VH_in2
VL_out
VH_out1
VH_out2
VH_cc
VH_out3
Iomax
Iomax2
Pd
Tj
Ta
Tstg
Tlead
Rating
18
6.5
6.5
18
20
6.5
20
18
20
24
1
80
4125 (Ta<25°C)
150
-40 °C +85
-55 °C +150
255 / +5 / -0 / 10sec
Unit
V
V
V
V
V
V
V
V
V
V
A
mA
mW
°C
°C
°C
°C
4500
4000
3500
3000
2500
2000
1500
1000
500
0
-40
-20
Power Dissipation
0 20 40 60 80 100 120 140 160
Ambient Temperature Ta(℃)
Copyright©2010 THine Electronics, Inc.
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THine Electronics, Inc.

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부품번호상세설명 및 기능제조사
THV3056

3ch Buck/Boost 2ch CP 1ch HVLDO 1ch LVLDO Controller

THine Electronics
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