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LD5537GL датащи(PDF) 6 Page - Leadtrend Technology

номер детали LD5537GL
подробное описание детали  Green-Mode PWM Controller with Variable Frequency and Brown IN/OUT Protections
PDF  17 Pages
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производитель  LEADTREND [Leadtrend Technology]
домашняя страница  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD5537GL датащи(HTML) 6 Page - Leadtrend Technology

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LD5537
09/07/2015
6
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD5537-DS-01 September 2015
PARAMETER
CONDITIONS
Symbol
MIN
TYP
MAX
UNITS
Input impedance
*
ZIN
1
M
Delay to Output
*
TD
50
100
ns
OVP CS pin
OVP Trip Current Level
VCS_OVP
0.276
0.3
0.324
V
De-bounce Cycle
TDE_OVP
8
Cycle
Oscillator for Switching Frequency
Frequency, FREQ
Normal mode
FSW
62
65
68
kHz
Peak mode
FSW_PK
123
130
137
kHz
Green Mode Frequency, FREQG
Green mode
FSW_GM
20
23
26
kHz
Swapping Frequency
FSWAP
±6
%
Temp. Stability
*, (-20
C ~ 85C)
TSTAB
0
5
%
Voltage Stability
*, (VCC=11V ~ 25V)
VSTAB
0
1
%
V
Frequency
130kHz
65kHz
23kHz
Normal mode
Burst mode
4.2V
4.0V
2.95V
2.45V
1.7V~1.8V
COMP
Duty %
0.68V
0.62V
50%
20%
VCS_OCP
Fig. 1 VCOMP vs. PWM Frequency
Fig. 2
Duty vs. OCP level



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