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LD7537 датащи(PDF) 5 Page - Leadtrend Technology

номер детали LD7537
подробное описание детали  Green-Mode PWM Controller with Frequency Swapping and Integrated Protections
PDF  16 Pages
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производитель  LEADTREND [Leadtrend Technology]
домашняя страница  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD7537 датащи(HTML) 5 Page - Leadtrend Technology

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LD7537
5
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD7537-DS-01a December 2011
Electrical Characteristics
(TA = +25°C unless otherwise stated, VCC=15.0V)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage (Vcc Pin)
Startup Current
12
20
μA
VCOMP=0V
1.0
mA
VCOMP=3V
2.0
mA
OLP Tripped/ Auto
0.47
mA
Operating Current
(with 1nF load on OUT pin)
OVP Tripped /Latch
0.85
mA
Holding Current
Vcc=7V (latched)
430
μA
UVLO (off)
7.5
8.5
9.5
V
UVLO (on)
15
16
17
V
OVP Level
25
26
27
V
Voltage Feedback (Comp Pin)
Short Circuit Current
VCOMP=0V
0.25
mA
Open Loop Voltage
COMP pin open
5.4
V
Green Mode Threshold VCOMP
2.4
V
Zero Duty Threshold VCOMP
1.5
V
Zero Duty Hysteresis
100
mV
Current Sensing (CS Pin)
Maximum Input Voltage, VCS_OFF
0.8
0.85
0.9
V
Leading Edge Blanking Time
230
ns
Internal Slope Compensation
0% to DMAX. (Linearly increase)
300
mV
Input impedance
1
M
Ω
Delay to Output
100
ns
Oscillator for Switching Frequency
Frequency, FREQ
60
65
70
kHz
Green Mode Frequency, FREQG
22
kHz
Trembling Frequency
± 4.0
kHz
Temp. Stability
(-20
°C ~85°C)
5
%
Voltage Stability
(VCC=11V-25V)
1
%
Free Datasheet http://www.nDatasheet.com



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