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參數(shù)資料
| 型號： | LD7550 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Green-Mode PWM Controller |
| 中文描述： | 綠色模式PWM控制器 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 216K |
| 代理商： | LD7550 |
LD7550
4
Leadtrend Technology Corporation
LD7550-DS-00 August 2004
Electrical Characteristics
(T
A
= +25
o
C unless otherwise stated, V
CC
=15.0V)
PARAMETER
Supply Voltage (Vcc Pin)
Startup Current
CONDITIONS
MIN
TYP
MAX
UNITS
V
COMP
=0V
V
COMP
=3V
V
COMP
=open
5
3
2
25
4
12.4
17.5
μ
A
mA
mA
mA
V
V
Operating Current
0.7
11.4
16.0
UVLO (off)
UVLO (on)
Voltage Feedback (Comp Pin)
Short Circuit Current
Open Loop Voltage
Green Mode Threshold VCOMP
Current Sensing (CS Pin)
Maximum Input Voltage
Leading Edge Blanking Time
Input impedance
Delay to Output
Oscillator (RT pin)
Frequency
Green Mode Frequency
Temp. Stability
Voltage Stability
Gate Drive Output (OUT Pin)
Output Low Level
Output High Level
Rising Time
Falling Time
10.4
14.8
V
COMP
=0V
COMP pin open
2.2
5.0
2.35
3.0
mA
V
V
0.80
0.85
250
50
300
0.90
V
nS
K
nS
RT=100K
Fs=66.5KHz
(-30
°
C
~85
°
C)
(VCC=12V-30V)
61.5
66.5
20
71.5
5
2
KHz
KHz
%
%
VCC=15V, Io=20mA
VCC=15V, Io=20mA
Load Capacitance=1000pF
Load Capacitance=1000pF
1
V
V
nS
nS
8
50
30
200
125
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