DAEWOO ELECTRONICS DSL-19M1WCD, Руководство по обслуживанию, Страница: 52 / 81

51
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
·
Pin Description