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參數(shù)資料
| 型號(hào)： | AT1391P-GRE |
| 廠商： | Aimtron Technology Corp. |
| 英文描述： | 1- Channel Step-Down PWM Controller |
| 中文描述： | 1 -通道降壓型PWM控制器 |
| 文件頁(yè)數(shù)： | 4/9頁(yè) |
| 文件大?。?/td> | 426K |
| 代理商： | AT1391P-GRE |
AT1391
Preliminary Product Information
1- Channel Step-Down PWM Controller
Electrical Characteristics
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW:
http://www.aimtron.com.tw
3/15/2006 REV:1.1 Email:
service@aimtron.com.tw
4
(VCC = 5V,Ta =+25
℃
, unless otherwise noted. )
Values
Parameter
Symbol
Condition
Min. Typ. Max.
Unit
Input Supply Range
V
CC
2.5
--
6.0
V
Quiescent Current
I
CC
Duty=50%,
fOSC=600KHz
PDRV/NDRV No Load
CTL=0V
1.0
1.5
mA
Current in standby mode
I
ST
10
μ
A
Reference Voltage
V
REF
Ta =-20
℃
to +85
℃
1.20 1.22 1.24
V
Reference Voltage
line-regulation
V
REF-Line
VCC=2.5V to 6.0V
1
5
mV
Entire device
Rference Variation
with Temperature
Input Offset Voltage
Source Current
Sink Current
Source current Variation
with temperature
Sink current Variation
with temperature
Unity Gain Bandwidth
Common Mode Input
Voltage Range
DC Open Loop Gain
Frequency
Ta =-20
℃
to +85
℃
0.5
1.5
%
V
IO
I
OH
I
OL
V
COMP
= V
REF
–0.5V
V
COMP
= 0.5V
Ta =-20
℃
to +85
℃
10
mV
mA
μ
A
-1.0 -1.5 -2.0
160
120
80
20
%
Ta =-20
℃
to +85
℃
20
%
f
T
10.0
MHz
V
COM
0.2
1.5
V
Error amplifier
A
V
fosc
110
600
1.0
dB
500
700 KHz
High Level Voltage
V
Low Level Voltage
Variation with Power
Supply
Variation with
temperature
Charge Current of
SS
Invalid threshold
voltage of SS
Charge Current of
SS
Threshold Voltage of
SCP
0.5
V
Vcc=2.5V to 6V
2
%
Sawtooth wave
oscillator (OSC)
Ta =-20
℃
to +85
℃
7
%
I
CSS
-1.0
μ
A
Soft-Start
1.0
V
I
CSCP
-1.5 -1.25 -1.0
μ
A
Short-Circuit
0.8
0.9
1.0
V
Output source current
I
source
Duty
≥
95% OUT=0V
-
-130 -80
mA
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