THV3543 Datasheet, PDF (5/19 Pages) THine Electronics, Inc. – 2 channel Buck/Boost 2 channel Charge Pump Controller

THV3543_Rev.1.00_E
Pin #
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Symbol
NON_AMP
INV_AMP
V_AMP
OUT_AMP
OUT_LDO
OUT_VGL
V_VGL
V_VGH
OUT_VGH
PGND
VGL_FB
VGH_FB
LSW_OUT2
LSW_OUT1
LL2
BST2
PVCC
VCC
LX1
VO1_IN
Function
Non-inverting input for
operational amplifier
Inverting input for
operational amplifier
Power supply for
operational amplifier
Output for operational
amplifier
Output for LDO
Output for VGL driver
Power supply for VGL
Power supply for VGH
Output for VGH driver
Power Ground
Input for VGL feedback
Input for VGH feedback
Output 2
for load switch control
Output 1
for load switch control
Description
Non-inverting input pin for operational amplifier.
Inverting input pin for operational amplifier.
Power supply pin for operational amplifier.
Output pin for operational amplifier.
Output pin for LDO.
Output pin for the negative voltage charge pump driver.
Power supply pin for negative voltage charge pump driver circuit.
Power supply pin for positive voltage charge pump driver circuit.
Output pin for the positive voltage charge pump driver.
Power Ground pin.
Feedback voltage input for negative voltage charge pump. In
fixed output voltage mode, connect this pin to the output of
negative voltage charge pump. In adjustable output voltage mode,
connect resistors between the output and VGL_FB pin, and
between VGL_FB pin and VREF pin, so that this pin become 0V.
Feedback voltage input for positive voltage charge pump. In fixed
output voltage mode, connect to the output of positive voltage
charge pump. In adjustable output voltage mode, connect resistors
between the output and VGH_FB pin, and between VGH_FB pin
and GND, so that this pin become 1.2V.
Gate control pin for Load Switch 2.
Gate control pin for Load Switch 1, with built-in Soft Start
function.
Output for CH-2
Switching output pin for CH-2.
Power supply
for CH-2 High side driver
Power supply for CH-2
Power supply
for control circuit
Power supply pin for CH-2 High side driver. Connect a capacitor
between BST2 pin and LL2 pin.
Power supply pin for CH-2.
Power supply pin for the control circuit block.
Output for CH-1
Switching output pin for CH-1.
Feedback voltage input
for CH-1
Feedback voltage input pin for CH-1 in fixed output voltage
mode. Connect to output for CH-1. In adjustable output voltage
mode, connect to ground.
Copyright© 2011 THine Electronics, Inc.
5/19
THine Electronics, Inc.