THV3058 Datasheet, PDF (4/21 Pages) THine Electronics, Inc. – 3CH (Buck/Boost) 2CH CP 1CH HVLDO Controller

THV3058_Rev.1.00_E
Pin Description
Pin#
Symbol
Function
Description
1
OUT1
CH-1 output
Boost driver pin for CH-1 external device. Output range is 0~5V.
2
29
14
CS1
CS2
CS3
CH-1, CH-2, CH-3
over current sense
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.
3
VREG5
5V regulator output
5V regulator output pin. Power supply for low voltage output.
Connect an external capacitor(Typ:4.7μF) between this pin.
4
VGH_OK VGH power good signal
Open drain output. Connect an approximately 100k ohm pull-up resistor.
When VGH has generated normally, the output is fixed to High level.
5
INV1
CH-1,CH-2 error amplifier CH-1, CH-2 error amp inverting inputs. The voltage on INV1 is 1.2V,
31
INV2
inverting input
and INV2 is 0.85V, in the normal operation.
6
FB1
CH-1,CH-2
32
FB2
error amplifier output
CH-1, CH-2 error amplifier outputs for phase compensation by connect-
ing resistors and capacitors between FB1,2 and INV1,2.
7
PC3
CH-3 phase compensation
Connect a capacitor between this pin for phase compensation.
8
SGND
Signal Ground
Ground for control circuit.
9
VO_3IN CH-3 output voltage feedback CH-3 output voltage feedback pin.
26
LL2
CH-2, CH-3 node
11
LL3
connection to inductor
CH-2, CH-3 node connection to inductor.
10
OUT3
CH-3 output
Driver pin for CH-3 High side transistor.
25
BST2
CH-2, CH-3 High side capac- CH-2, CH-3 power supply for High side driver output.
12
BST3
itor connection
Bootstrap diodes are built-in.
13
20
PGND
PGND_CP
Power Ground
Ground for power supply
15
VREF
Reference voltage
Reference voltage(1.2V). Connect an external capacitor(0.01μF)
between this pin for stability. Maximum load current is 1mA.
16
17
TEST1
TEST2
Test pin
Connect to Ground or open in normal use..
18
INV_VGH
VGH comparator inverting
input
VGH comparator inverting input
19
NON_VGL
VGL comparator non-invert-
ing input
VGL comparator non-inverting input
21
OUT_VGL
VGL
(charge pump -)output
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.
22
V_VGL
VGL output voltage supply VGL output voltage supply.
23
V_VGH VGH output voltage supply VGH output voltage supply.
24
OUT_VGH
VGH
(charge pump +)output
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.
Copyright©2010 THine Electronics, Inc.
4/21
THine Electronics, Inc.