THV3058_Rev.1.00_E
THV3058
3CH (Buck/Boost) 2CH CP 1CH HVLDO Controller
Description
THV3058 is a controller IC for multi-channel power
supply system with 3 channel PWM DC/DC convert-
ers(CH-1 Boost/CH-2, CH-3 Buck) and 2 channel
charge pump circuits.
THV3058 contains internal soft start, under voltage
protection, over voltage protection and over current
protection, which helps reducing the number of exter-
nal component count and increasing reliability.
Built-in positive and negative charge pump cir-
cuits(VGL/VGH) achieve enhanced performance.
Ceramic capacitors are available for output, that pro-
vides space-saving and low cost system.
THV3058 is ideal for TFT-LCD bias power supply
system.
Features
• QFN 36 pin package
• Input Voltage range : 9 ~ 15V
• Push Pull output for direct Power MOS driving
• Optimized for ceramic output capacitor
• Complete PWM mode controller
• Positive/Negative charge pumps
(PFM mode controller)
• Switching Frequency : 500kHz
• Under Voltage Protection (Timer Latch )
• DC/DC Over Voltage Protection
(CH-2, CH-3 : Timer Latch )
• DC/DC Over Current Protection
• UVLO function
• CH-1 Boost Converter
• CH-2 Buck Converter (Reference Voltage:0.85V)
• CH-3 Buck Converter (Output Voltage : 3.3V)
• High Voltage LDO
Application
½
TFT-LCD Bias power supply
Pin Assignment
OUT_HLDO
LSW_OUT
INV_HLDO
SYSUVLO
OUT_L2
28
VCC
INV2
FB2
36
35
34
33
32
31
30
29
CS2
OUT1
CS1
VREG5
VGH_OK
INV1
FB1
PC3
SGND
VO3_IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
27
26
OUT_H2
LL2
BST2
OUT_VGH
V_VGH
V_VGL
OUT_VGL
PGND_CP
NON_VGL
QFN 36PIN
Exposed Pad
(TOP VIEW)
25
24
23
22
21
20
19
18
INV_VGH
37GNDEXP
PGND
LL3
OUT3
BST3
VREF
TEST1
Copyright©2010 THine Electronics, Inc.
1/21
THine Electronics, Inc.
TEST2
CS3
THV3058_Rev.1.00_E
Output Channel Description
Output Channel
CH-1
CH-2
CH-3
VGH
VGL
HVLDO
LSW_OUT
VGH_OK
PWM Boost converter
PWM Buck converter
(NMOS transistor drive for synchronous rectifier / available for diode rectification)
Description
PWM Buck converter fixed 3.3V
Positive charge pump
Negative charge pump
High voltage LDO
Output for the external load switch.
Output for VGH Power Good Signal.
Copyright©2010 THine Electronics, Inc.
2/21
THine Electronics, Inc.
THV3058_Rev.1.00_E
Block Diagram
THV 3058
Vin=12V
TFT Multi Channel controller
VCC
VREG5
5 V REG
SYSUVLO
VO1
UVLO
TSD
VO1
VLS
Max Duty
INV1
-
+
VREG5
op
+
Comp
-
STOP
+
-
OUT1
CS1
PGND
SS
SS_OK2
SS_OK1
VREF
OSC
FB1
-
+
OVP1
TEST1
-
+
UVP1
V_ VGL
LSW_ OUT
TEST2
PG_ VGL
SS
SS_OK_LSW
VO3
VO3_IN
VREG5
VO3 =3.3V
gm
+
-
+
Comp
-
STOP
BST3
VREF
OSC
OUT3
LL3
PC3
-
+
-
+
OVP3
Max Duty
UVP3
+
-
CS3
VO2
VREG5
INV2
VO2
-
+
op
+
Comp
-
STOP
BST2
SS
UVLO
SS_OK2
0.85V
OSC
OUT_H2
LL2
FB2
Max Duty
OVP2
-
+
-
+
OUT_L2
UVP2
+
-
CS2
VGH
V_ VGH
VLS
INV_ VGH
-
+
OUT_VGH
OSC
PG_ VGH
SS_OK_LSW
VGH
VREF
5 msec
Delay
STOP
VGL
-
+
V_ VGL
NON_ VGL
-
+
VO1
VGL
OUT_VGL
SS_OK1
VREF
-
+
PG_ VGL
STOP
OSC
V_ VGH
VREF
-
+
PGND_CP
STOP
UVLO
VCC
VREF
Vref
UVP1, 2, 3
OVP2, 3
OUT_HLDO
Timer
Latch
Error
Detection
P_GOOD
VGH_OK
cur_ limit
INV_HLDO
SGND
PG_VGL, VGH
OSC
PG_VGH
Copyright©2010 THine Electronics, Inc.
3/21
THine Electronics, Inc.
THV3058_Rev.1.00_E
Pin Description
Pin#
1
2
29
14
3
4
5
31
6
32
7
8
9
26
11
10
25
12
13
20
15
16
17
18
19
Symbol
OUT1
CS1
CS2
CS3
VREG5
VGH_OK
INV1
INV2
FB1
FB2
PC3
SGND
VO_3IN
LL2
LL3
OUT3
BST2
BST3
PGND
PGND_CP
VREF
TEST1
TEST2
INV_VGH
NON_VGL
Function
CH-1 output
CH-1, CH-2, CH-3
over current sense
Description
Boost driver pin for CH-1 external device. Output range is 0~5V.
Connect CS1 to sence registance connected Low side NMOS source.
Connect CS2 to sence registance connected Low side NMOS source or
diode anode.
Connect CS3 to sence registance connected diode anode.
5V regulator output pin. Power supply for low voltage output.
Connect an external capacitor(Typ:4.7μF) between this pin.
Open drain output. Connect an approximately 100k ohm pull-up resistor.
When VGH has generated normally, the output is fixed to High level.
CH-1, CH-2 error amp inverting inputs. The voltage on INV1 is 1.2V,
and INV2 is 0.85V, in the normal operation.
CH-1, CH-2 error amplifier outputs for phase compensation by connect-
ing resistors and capacitors between FB1,2 and INV1,2.
Connect a capacitor between this pin for phase compensation.
Ground for control circuit.
CH-3 output voltage feedback pin.
CH-2, CH-3 node connection to inductor.
Driver pin for CH-3 High side transistor.
CH-2, CH-3 power supply for High side driver output.
Bootstrap diodes are built-in.
Ground for power supply
Reference voltage(1.2V). Connect an external capacitor(0.01μF)
between this pin for stability. Maximum load current is 1mA.
Connect to Ground or open in normal use..
VGH comparator inverting input
VGL comparator non-inverting input
VGL drive output for negative voltage charge pump. V_VGL is used as
input power supply. In PFM mode, this pin can be used as PMOS gate
drive.
VGL output voltage supply.
VGH output voltage supply.
VGH drive output for positive voltage charge pump. V_VGH is used as
power supply. In PFM mode, this pin can be used as NMOS gate drive.
5V regulator output
VGH power good signal
CH-1,CH-2 error amplifier
inverting input
CH-1,CH-2
error amplifier output
CH-3 phase compensation
Signal Ground
CH-3 output voltage feedback
CH-2, CH-3 node
connection to inductor
CH-3 output
CH-2, CH-3 High side capac-
itor connection
Power Ground
Reference voltage
Test pin
VGH comparator inverting
input
VGL comparator non-invert-
ing input
VGL
(charge pump -)output
VGL output voltage supply
VGH output voltage supply
VGH
(charge pump +)output
21
22
23
24
OUT_VGL
V_VGL
V_VGH
OUT_VGH
Copyright©2010 THine Electronics, Inc.
4/21
THine Electronics, Inc.
THV3058_Rev.1.00_E
Pin#
27
28
Symbol
OUT_H2
OUT_L2
Function
CH-2 High side drive output
CH-2 Low side driver output
Description
CH-2 High side NMOS transistor drive for synchronous rectifier.
CH-2 Low side NMOS transistor drive for synchronous rectifier.
Available even without Low side NMOS transistor.
SYSUVLO pin shuts down the IC, when the power supply voltage (Vin) is
lower than the predetermined voltage. The threshold voltage is 3.5V, the
release voltage is 5.46V. by internal setting. The threshold voltage also can
be set optionally by changing the external resistance value.
HVLDO inverting input. The voltage on this pin is 1.2V in the normal oper-
ation.
HVLDO output. Connect to an external capacitor(Typ:2.2μF).
Gate control pin for CH-1 external switch.
Soft start function is built-in.
Power supply for control.
30
SYSUVLO
System UVLO input
33
34
35
36
INV_HLDO
OUT_HLD
O
LSW_OUT
VCC
HVLDO amplifier inverting
input
HVLDO output
Output for CH-1 switch con-
trol
Power supply
Copyright©2010 THine Electronics, Inc.
5/21
THine Electronics, Inc.
京公网安备 11010802033920号
EEWORLD
