at1729 Aimtron Technology, at1729 Datasheet - Page 4

• Manufacturer Part Number: at1729
• Description: 3-channel Pwm Controller For Lcd Bias
• Manufacturer: Aimtron Technology

Entire device
Error amplifier
Sawtooth wave
oscillator (OSC)
Regulated
for internal Control
Block
Soft-Start and Duty
Section
Electrical Characteristics
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone]
Fax: [phone]
Voltage
Parameter
Input Supply Range
VCC
Lockout
Reference Voltage
Reference Voltage
line-regulation
Rference Variation
with Temperature
Operation Current
Operation Current
Input Offset Voltage
Source Current
(CH1,2,3)
Sink Current(CH1,3)
Sink Current(CH2)
Source current Variation
with temperature
Sink current Variation
with temperature
Unity Gain Bandwidth
Common Mode Input
Voltage Range
DC Open Loop Gain
Frequency
High Level Voltage
Low Level Voltage
Variation with Power
Supply
Variation with
temperature
Regulated Voltage
Variation with Power
Supply
Variation with
Temperature
Source Current
Charge Current of
CS1_2(Source)
Charge Current of
CS3(Sink)
Undervoltage
Symbol
3-Channel PWM Controller for LCD Bias
UVLO
V
V
WWW:
V
V
I
V
fosc
I
I
I
TH1/2/3
TH-Line
V
CS1_2
I
I
I
I
A
REG
CC1
CC2
f
COM
CS3
Email:
OH
OL
OL
REG
CC
T
IO
V
4
http://www.aimtron.com.tw
VCC=2.5V to 5.5V
T a =-30℃ to +85℃
IN=FB
No Switch, No load
V
V
V
T a =-30℃ to +85℃
T a =-30℃ to +85℃
C
C
C
Vcc=2.5V to 5.5V
T a =-30℃ to +85℃
C
Vcc=2.5V to 5.5V
T a =-30℃ to +85℃
CS1_2=0V
CS3=0V
[e-mail]
Preliminary Product Information
T
T
T
O
FB
FB
FB
=150pF
=150pF
=150pF
=0.1μF
= V
= 0.5V
= 0.5V
(VCC = 3V,T a =+25℃, unless otherwise noted.)
Condition
REG
-0.5V
Min. Typ. Max.
-160 -120
1.95 2.05 2.15
0.97 1.00 1.03
2.16 2.20 2.24
-3.0
-3.0
480
-40
2.5
1.2
1.0
2.0
0.5
0.2
-
-
-
-
-
-
-
Values
550
0.5
3.0
2.5
1.0
2.0
1.0
0.5
80
AT1729
1
-
-
-
-
-
-
-
-
-
-5.0
-5.0
620
-80
-17
5.5
1.5
3.8
1.9
3.0
1.5
1.5
1.5
1.5
10
10
20
20
2
7
-
-
MHz
Unit
μA
kHz
mV
mA
mA
mV
mA
mA
mA
µA
µA
dB
%
%
%
%
%
%
%
V
V
V
V
V
V
V