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LD7523GS Datasheet(PDF) 5 Page - Leadtrend Technology

Part # LD7523GS
Description  Smart Green-Mode PWM Controller with Multiple Protections
PDF  18 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7523GS Datasheet(HTML) 5 Page - Leadtrend Technology

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LD7523
5
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7523-DS-00
June 2009
Electrical Characteristics
(TA = +25
oC unless otherwise stated, VCC=12.0V)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage (VCC Pin)
Startup Current
20
35
μA
VCOMP=0V
3.5
mA
VCOMP=3V
2.7
mA
Operating Current
(with 1nF load on OUT pin)
Protection Mode (note 1)
0.70
mA
UVLO (off)
9.0
9.75
10.7
V
UVLO (on)
12.0
12.75
13.5
V
Voltage Feedback (Comp Pin)
Short Circuit Current
VCOMP=0V
2.5
4.0
mA
Green Mode Threshold VCOMP
2.35
V
Current Sensing (CS Pin)
VBNO=0V (note 2)
0.80
0.85
0.90
V
VBNO=1.30V
0.748
0.798
0.848
V
Maximum Input Voltage, VCS(OFF)
VBNO=3.75V
0.650
0.700
0.750
V
Leading Edge Blanking Time
350
nS
Input impedance
1
NA
M
Ω
Delay to Output
200
nS
Gate Drive Output (OUT Pin)
Output Low Level
VCC=15V, Io=20mA
1.0
V
Output High Level
VCC=15V, Io=20mA
9.0
V
Rising Time
VCC=15V,Load Cap.=1000pF
50
160
nS
Falling Time
VCC=15V ,Load Cap.=1000pF
30
60
nS
Oscillator
Frequency
60
65
70
KHz
Green Mode Frequency
20
KHz
Frequency Temp. Stability
(-40
°C –85°C)
3
%
Frequency Voltage Stability
(VCC=12V-30V)
1
%



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