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LD7577 데이터시트(PDF) 5 Page - Leadtrend Technology

부품명 LD7577
상세설명  High Voltage Green-Mode PWM Controller with Brown-Out Protection
PDF  18 Pages
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제조업체  LEADTREND [Leadtrend Technology]
홈페이지  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7577 데이터시트(HTML) 5 Page - Leadtrend Technology

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LD7577
5
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7577-DS-01 January 2009
Electrical Characteristics
(TA = +25
oC unless otherwise stated, VCC=15.0V)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
High-Voltage Supply (HV Pin)
High-Voltage Current Source
Vcc< UVLO(on), HV=500V
0.5
1.0
1.5
mA
Off-State Leakage Current
Vcc> UVLO(off), HV=500V
8.9
35
μA
Supply Voltage (Vcc Pin)
Startup Current
Vcc< UVLO(on)
320
μA
VCOMP=0V
2.85
mA
VCOMP=3V
3.2
mA
OLP tripped
0.68
mA
Operating Current
(with 1nF load on OUT pin)
OVP tripped
0.78
mA
UVLO (off)
9.0
10.0
11.0
V
UVLO (on)
15.0
16.0
17.0
V
OVP Level
26.5
28.0
29.5
V
Voltage Feedback (Comp Pin)
Short Circuit Current
VCOMP=0V
1.5
2.2
mA
Open Loop Voltage
COMP pin open
6.0
V
Green Mode Threshold VCOMP
2.35
V
Burst Mode Threshold VCOMP
1.4
V
Current Sensing (CS Pin)
Maximum Input Voltage
0.80
0.85
0.90
V
Leading Edge Blanking Time
VCOMP>1.9V
250
nS
Input impedance
1
M
Ω
Delay to Output
100
nS
Oscillator for Switching Frequency
Frequency
60
65
70
KHz
Green Mode Frequency
22
KHz
Temp. Stability
(-40
°C ~105°C)
5
%
Voltage Stability
(VCC=11V-25V)
1
%



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