Daewoo DSL-19M1TC, Service Manual

Page: 51 / 62

50
ICS ON HI-VOLTAGE BOARD
1
. BIT3193
High Performance PWM Controller
BIT3193 integrated circuit provides the essential features for general purpose PWM
controller in a small low cost 16-pin package. BIT3193 has built-in a low frequency PWM
generator for any specified application. BIT3193 includes latched off protection feature may
make the system more reliable while compare to other similar products.
· Features
· 4.5V ～ 8V operation
·
Fixed High Frequency, Voltage Mode PWM Control
·
Latched Off Protection
· Build-In Low Frequency PWM Generator
·
Build-in UVLO
·
Low Power CMOS Process
· Totem Pole Output
·
16 Pin Package
· Applications
·
DC/DC Converters
·
LCD TV
· LCD Monitor
·
Notebook Computer
·
Tablet PC
· Personal Digital Assistants
·
Navigation Phone/ Door Phone
·
Portable consumer product
·
Recommended Operating Condition:
Supply Voltage 4.5
～
8V
Operating Ambient Temperature 0 ～ 70 ° C
Operating Frequency 50K
～
400K Hz
· Pin Layout:
1 16
INN MODSEL
CMP ISEN
LOAD CLAMP
CTOSC PWMDC
TIMER CTPWM
ONOFF PWMOUT
GND VDD
NOUT2 NOUT1
8 9