THV3056 Datasheet, PDF (5/32 Pages) THine Electronics, Inc. – 3ch Buck/Boost 2ch CP 1ch HVLDO 1ch LVLDO Controller

THV3056_Rev.2.00_E
Pin#
62
64
16
21
29
45
43
44
42
9
31
28
32
2
40
54
59
56
Symbol
V_OUT3
XTEST
RT
SGND1
SGND2
VCIN
GNDVC
VCFB
VCOUT
SCP
PG2
PG3
PUP_PG
PGND1
PGND2
PGND_CP
PGND3
OUT_VGL
Function
Description
Output power supply for
OUT3
Output power supply for OUT3.
Test mode select
Connect to VCC in normal operation.
Timing resistor for oscilla- Resistor connection pin to set oscillation frequency.
tor
See Functional Description “Oscillation Circuit” for detail.
Signal GND
GND for control circuit.
Vcom buffer amplifier
non-inverting input
Vcom buffer amplifier non-inverting input.
Power GND for Vcom
buffer amplifier
Power GND for Vcom buffer amplifier.
Vcom buffer amplifier
inverting input
Vcom buffer amplifier inverting input.
Vcom buffer amplifier
output
Vcom buffer amplifier output.
Connecting external bipolar transistor, it can accept high output current.
Timer Latch short circuit ^{Setting the delay time of SCP timer latch circuit. The delay time means}
protection
the period from detection of abnormal operations, to shut down of IC.
See Functional Description “Short Circuit Protection” for detail.
Power good output
Open drain output. Connect an approximately 100k ohm pull-up resis-
tor. During soft start, when the voltage of SS pin rise up to the predeter-
mined voltage(ch-2/1V, ch-3/1.35V), PG pin output goes High level.
When soft start has finished normally, the output is fixed to High level.
Do not connect the pull-up resistor to higher voltage than VREG5.
Power good resistor
connection pin
Connecting PG pins with external control pins and also shorting VCC
pin and VREG5 pin, the resistor connected to PG pin should be pulled
up to PUP_PG pin.
Power GND
GND for power circuit.
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.
Copyright©2010 THine Electronics, Inc.
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THine Electronics, Inc.