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LD7576GS Datasheet(PDF) 6 Page - Leadtrend Technology

Part # LD7576GS
Description  Green-Mode PWM Controller
PDF  22 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7576GS Datasheet(HTML) 6 Page - Leadtrend Technology

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LD7576/76H/76J/76K
6
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7576-DS-04a
December 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
35
μA
Supply Voltage (VCC Pin)
Startup Current
100
μA
VCOMP=0V
2.7
3.5
mA
VCOMP=3V (LD7576, LD7576H)
3.1
4.0
mA
VCOMP=3V (LD7576J, LD7576K)
3.7
4.6
mA
OLP tripped
0.5
mA
OVP tripped
0.6
mA
OTP tripped
0.5
mA
Operating Current
(with 1nF load on OUT pin)
Latch Protection
2.0
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
1.3
2.2
mA
Open Loop Voltage
COMP pin open
5.6
V
Green Mode Threshold VCOMP
2.35
V
Current Sensing (CS Pin)
Maximum Input Voltage
0.80
0.85
0.90
V
Leading Edge Blanking Time
230
nS
Input impedance
1
M
Ω
Delay to Output
100
nS
Oscillator for Switching Frequency
LD7576/76H
61.0
65.0
69.0
KHz
Frequency
LD7576J/76K
94.0
100.0
106.0
KHz
LD7576/76H
20
KHz
Green Mode Frequency
LD7576J/76K
32
KHz
LD7576/76H
± 4.0
KHz
Trembling Frequency Range
LD7576J/76K
± 6.0
KHz
Temp. Stability
(-40
°C ~105°C)
5
%
Voltage Stability
(VCC=11V-25V)
1
%



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