AT1730 Datasheet, PDF (4/7 Pages) List of Unclassifed Manufacturers – 2-Channel PWM Controller for LCD Bias

AT1730
Preliminary Product Information
2-Channel PWM Controller for LCD Bias
Electrical Characteristics
Parameter
Symbol
(VCC = 3V,Ta =+25℃, unless otherwise noted.)
Condition
Values
Unit
Min. Typ. Max.
Input Supply Range
V_CC
VCC
Lockout
Undervoltage
UVLO
2.4 - 5.5 V
2.00 2.20 2.35 V
Entire device
EA Reference Voltage
EA Reference Voltage
line-regulation
EA Rference Variation
with Temperature
Standby current
Operating Current
V_TH1/2
V_TH-Line ^{VCC=2.5V to 5.5}
Ta =-10℃ to +85℃
I_CCS ^ON/OFF=GND
I_CC
V_CS2= V_CS2=0V
IN=FB
0.98 1.00 1.02 V
- - 10 mV
- 0.5 5 %
- - 15 μA
- 1.0 2.0 mA
Error amplifier
Input Offset Voltage
V_IO
Source Current
I_FBH ^{VFB = VREG -0.5V}
Sink Current
I_FBL ^{VFB = 0.5V}
Source current Variation
with temperature
Sink current Variation
with temperature
Ta =-10℃ to +85℃
Ta =-10℃ to +85℃
- 3 10 mV
-160 -120 -70 μA
2.0 2.5 3.0 mA
- - 20 %
- - 20 %
Unity Gain Bandwidth
Common Mode Input
Voltage Range
f_T
V_COM
- 1.6 - MHz
0
-
Vcc-
0.4
V
DC Open Loop Gain
Frequency
A_V
fosc ^{CT =100pF}
- 100 - dB
430 490 580 _kHz
High Level Voltage
C_T =100pF
- 1.016 - _V
Sawtooth wave
Oscillator (OSC)
Low Level Voltage
Variation with Power
Supply
Variation with
temperature
Regulated
for internal
Voltage
Control
Regulated
Voltage
Block
Line Regulator
V_REF
V_REF-line
C_T =100pF
Vcc=2.5V to 5.5V
Ta =-10℃ to +85℃
I_REG =no load
Vcc=2.5V to 5.5V
Load Regulator
V_REF-load ^{REG =0~1mA}
- 0.396 - _V
-
-
5%
- 5 7%
2.16 2.20 2.24 V
- - 20 mV
-20 - 20 mV
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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