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Beyond Innovation Technology |
Beyond Innovation Technology Co., Ltd.
High Performance PWM Controller
Version: A1
2012/02/06
Confidential
This is an ONE-TIME copy. Updates will not be provided
page 1 of 7
Beyond Innovation Technology Co., Ltd.
Features:
Voltage Mode PWM Controller
10V ~ 18V operation voltage
Current limit
Frequency adjustable
Internal Soft-Start
Maximum duty cycle output
Over temperature protection, OTP
Internal Under Voltage Lock Out, UVLO
Totem Pole Output
SOP-8 Package
Pin Layout:
1 VDD
OUT 8
2 EA
GND 7
3 CMP FREQ 6
4 INN
OCP 5
General Description:
The BIT3260 is a high frequency PWM controller
integrates required functions for boost conversion
in a small SOP-8 package. A low 0.2V feedback
voltage and over current protection make
BIT3260 be an ideal controller for LED backlight
supplies. Frequency adjustable is flexible in
variable system design. Internal soft start function
can avoid inrush current happened in the start up
period. Over temperature protection and UVLO
make system reliable. CMOS process greatly
reduces the operating current when comparing to
similar products
Functional Description:
Over
temperature
protection
OCP
FREQ
0.5V
+
-
Triangle wave
generator
Soft start
0.2V
+
INN -
CMP
Recommended Operating Condition:
Supply Voltage……………………….10V ~ 18V
Operating
Operating
AFmrebqiueennt cTye…m…pe…ra…tur…e….…....1-2000k Hz~~
84500 KHz
Absolute Ratings
VDD…………………………...…………-0.3 ~ +18 V
GND…………………..………….………±0.3 V
IOSOntpppoeeurarrtaagVtteiionnlTggtaeAJgmuempn…becirt…taioTt…nuermTe…ep…m…e…rpa…et…ur.a…r…etu………re….….….…….…………...+.-.-0-152.55300~~~1 V855D0D +0.3 V
Digital
control
circuit
Buffer
OUT
2012/02/06
Confidential
This is an ONE-TIME copy. Updates will not be provided
page 2 of 7
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