AT1731 Datasheet, PDF (4/8 Pages) List of Unclassifed Manufacturers – 2-Channel PWM Controller for LCD Bias

AT1731
Preliminary
2-Channel PWM Controller for LCD Bias
Electrical Characteristics
Parameter
Symbol
Input Supply Range
V_CC
VCC
Lockout
Undervoltage
UVLO
(VCC = 3V,Ta =+25℃, unless otherwise noted.)
Condition
Values
Unit
Min. Typ. Max.
2.5 -- 7.0 V
1.95 2.05 2.15 V
Entire device
Reference Voltage
Reference Voltage
line-regulation
Rference Variation
with Temperature
Operating Current
V_REF
VCC=2.5V to 7.0V
V_REF-Line
Ta =-30℃ to +85℃
Duty=50%,
I_CC fOSC=500KHz
0.98 1.00 1.02 V
1 5 mV
0.5 1.5 %
3.0 3.8 mA
Error amplifier
Input Offset Voltage
Source Current
(CH1,2)
Sink Current(CH1,2)
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
Sawtooth wave
Oscillator (OSC)
Low Level Voltage
Variation with
Supply
Variation with
Temperature
Power
Regulated Voltage
Variation with
Regulated Voltage _Supply
for internal Control _{Variation with}
Block
Temperature
Power
Source Current
Soft-Start and Duty Charge Current of
Section
CS1(Source)
V_IO
I_OH
I_OL
f_T
V_COM
A_V
fosc
V_REG
I_REG
I_{CS1_2}
V_FB = V_REG -0.5V
V_FB = 0.5V
Ta =-30℃ to +85℃
Ta =-30℃ to +85℃
C_T =150pF
C_T =150pF
C_T =150pF
Vcc=2.5V to 7V
Ta =-30℃ to +85℃
C_O =0.1μF
Vcc=2.5V to 7V
Ta =-30℃ to +85℃
10 mV
-160 -120 -80 μA
2.0 2.5 3.0 mA
20 %
20 %
2.0
MHz
0.2
1.5 V
80
dB
480 550 620 _kHz
1.0
V
0.5
V
2%
7%
2.16 2.20 2.24 V
1.5 %
1.5 %
-40 - -15 ^mA
-1.0
mA
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: [phone]
WWW: http://www.aimtron.com.tw
Fax: [phone]
Email: [e-mail]
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