THine Electronics, Inc.
Preliminary
THV1021-Rev0.05W
Preliminar
y
Features
•TSSOP 24Pin package
•Input Voltage range : 4.2 to 18.0V
•Push Pull output for direct Power Mos driving
•Optimized for Ceramic output capacitor
•Complete PWM mode controller
•Adjustable switching frequency 200kHz to 1MHz
by external resister
•Timer Latch Protection
• System UVLO Function
•Adjustable Soft Start time by external capacitor
•Adjustable Timer Latch Delay time
by external capacitor
•Adjustable Dead Time Control by external
resistor
•Ch1 is Buck/Boost controller
•Ch2 is Buck/Inverting controller
Applications
• TFT LCD Bias voltage supply
• TV/monitor set
• General use
2ch Buck, Boost and Inverting Controller
THV1021
Pin Asignment
General Description
THine's new 2ch Buck/Boost & Inverting controller
enables simple & low cost multi-channel power supply
system design. Ch-1 is selectable Buck/Boost controller,
ch-2 is selectable Inverting / Buck converter.
All channels are PWM controllers and are designed to
make phase compensation easy for output ceramic
capacitors.
SS_1,2, DTC_1,2, and SCP pins help to design user
defined soft start time, dead time and timer latch delay
time. Utilizing those pins and P_GOOD 1,2, the ensured
sequence control can be easily set and linked to the
external circuit.
This IC is suitable for power supply system of TFT LCD
bias and for system board with multi-channel power
supply.
TSSO P 24P
7
5
6
8
3
2
1
4
9
10
11
12
16
23
13
14
15
22
21
20
18
19
24
17
SYSUVLO
FB_1
DTC_1
SS_1
SCP
INV_1
SGND
FB_2
INV_2
VREF
NON_INV_2
SS_VREF
PGND
SLCT_1
RT
OUT_2
SS_2
DTC_2
P_GOOD2
OUT_1
P_GOOD1
VCC
XP_DET
OUT_SYS
