參數(shù)資料
型號(hào): RT8800PS
廠商: Richtek Technology Corporation
英文描述: General Purpose 2/3-Phase PWM Controller for High-Density Power Supply
中文描述: 通用2/3-Phase PWM控制器,用于高密度電源
文件頁(yè)數(shù): 9/26頁(yè)
文件大?。?/td> 546K
代理商: RT8800PS
RT8800/B
9
DS8800/B-06 March 2007
www.richtek.com
All brand name or trademark belong to their owner respectively
Absolute Maximum Ratings
(Note 1)
z
Supply Voltage, V
DD
------------------------------------------------------------------------------------------- 7V
z
Input, Output or I/O Voltage---------------------------------------------------------------------------------- GND
0.3V to V
DD
+ 0.3V
z
Power Dissipation, P
D
@ T
A
= 25
°
C
VQFN-16L 3X3 -------------------------------------------------------------------------------------------------- 1.47W
SOP-16 ----------------------------------------------------------------------------------------------------------- 1W
z
Package Thermal Resistance (Note 4)
VQFN-16L 3X3,
θ
JA
--------------------------------------------------------------------------------------------- 68
°
C/W
SOP-16,
θ
JA
----------------------------------------------------------------------------------------------------- 100
°
C/W
z
Junction Temperature------------------------------------------------------------------------------------------ 150
°
C
z
Lead Temperature (Soldering, 10 sec.)-------------------------------------------------------------------- 260
°
C
z
Storage Temperature Range ---------------------------------------------------------------------------------
65
°
C to 150
°
C
z
ESD Susceptibility (Note 2)
HBM (Human Body Mode) ----------------------------------------------------------------------------------- 2kV
MM (Machine Mode) ------------------------------------------------------------------------------------------- 200V
Electrical Characteristics
(V
DD
= 5V, T
A
= 25
°
C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Units
V
DD
Supply Current
Nominal Supply Current
I
DD
PWM 1,2,3 Open
--
5
--
mA
Power-On Reset
Rising
4.0
4.2
4.5
V
V
DD
Threshold
Hysteresis
0.2
0.5
--
V
DVD Rising Threshold
0.75
0.8
0.85
V
DVD Hysteresis
--
65
--
mV
Oscillator
Free Running Frequency
f
OSC
R
RT
= 16k
Ω
170
200
230
kHz
Frequency Adjustable Range
f
OSC_ADJ
Δ
V
OSC
50
--
400
kHz
Ramp Amplitude
R
RT
= 16k
Ω
--
1.7
--
V
Ramp Valley
V
RV
--
1.0
--
V
Maximum On-Time of Each Channel
62
66
75
%
Minimum On-Time of Each Channel
--
120
--
ns
RT Pin Voltage
V
RT
R
RT
= 16k
Ω
0.77
0.82
0.87
V
Recommended Operating Conditions
(Note 3)
z
Supply Voltage, V
DD
------------------------------------------------------------------------------------------- 5V
±
10%
z
Ambient Temperature Range--------------------------------------------------------------------------------- 0
°
C to 70
°
C
z
Junction Temperature Range--------------------------------------------------------------------------------- 0
°
C to 125
°
C
To be continued
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