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參數(shù)資料
| 型號： | RT8803A |
| 廠商： | Richtek Technology Corporation |
| 英文描述： | 2/3-Phase PWM Controller for High-Density Power Supply |
| 中文描述： | 2/3-Phase PWM控制器的高密度電源 |
| 文件頁數(shù)： | 17/27頁 |
| 文件大?。?/td> | 553K |
| 代理商： | RT8803A |
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RT8803A
17
DS8803A-05 August 2007
www.richtek.com
All brandname or trademark belong to their owner respectively
Note 1.
Stresses listed as the above
"Absolute Maximum Ratings"
may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
Note 2.
Devices are ESD sensitive. Handling precaution recommended.
Note 3.
The device is not guaranteed to function outside its operating conditions.
Note 4.
θ
JA
is measured in the natural convection at T
A
= 25
°
C on a low effective thermal conductivity test board of
JEDEC 51-3 thermal measurement standard.
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
Reference and DAC
V
DAC
≥
1V
1V
≥
V
DAC
≥
0.8V
0.5
--
+0.5
%
5
--
+5
mV
DACOUT Voltage Accuracy
Δ
V
DAC
V
DAC
< 0.8V
8
--
+8
mV
DAC (VID0-VID125) Input Low
V
ILDAC
--
--
1/2V
TT
0.2
--
V
DAC (VID0-VID125) Input High
V
IHDAC
1/2V
TT
+ 0.2
12
--
V
V
ID
Pull-up Resistance
OFS Pin Voltage
R
OFS
= 100k
Ω
15
18
k
Ω
V
OFS
0.9
1.0
1.1
V
Error Amplifier
DC Gain
--
65
--
dB
Gain-Bandwidth Product
GBW
--
10
--
MHz
Slew Rate
SR
COMP = 10pF
--
8
--
V/
μ
s
Current Sense GM Amplifier
CSN Full Scale Source Current
I
ISPFSS
100
--
--
μ
A
CSN Current for OCP
150
--
--
μ
A
Protection
Over-Voltage Trip (FB-DACOUT)
Δ
OVT
100
150
200
mV
IMAX Voltage
V
IMAX
R
IMAX
= 20k
0.9
1.0
1.1
V
Power Good
Output Low Voltage
V
PGOODL
I
PGOOD
= 4mA
--
--
0.2
V
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