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LD5537B1GL Datasheet(PDF) 6 Page - Leadtrend Technology

Part # LD5537B1GL
Description  Green-Mode PWM Controller with Frequency Swapping and Integrated Protections
PDF  16 Pages
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Manufacturer  LEADTREND [Leadtrend Technology]
Direct Link  https://www.leadtrend.com.tw/
Logo LEADTREND - Leadtrend Technology

LD5537B1GL Datasheet(HTML) 6 Page - Leadtrend Technology

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LD5537B1/I1
12/18/2018
6
Leadtrend Technology Corporation
www.leadtrend.com.tw
LD5537B1/I1-DS-00 December 2018
PARAMETER
CONDITIONS
SYMBOL
MIN
TYP
MAX
UNITS
Oscillator for Switching Frequency
CCM Frequency
FCCM
100
kHz
Frequency Swapping
*
FSW_MOD
±8
%
Green Mode Frequency
FSW_GREEN
24
kHz
Temp. Stability
*
FSW_TS
3
5
%
Voltage Stability
VCC =9V~24V *
FSW_VS
1
%
Maximum Duty
*
DMAX
81
%
Soft Start
Soft Start Time
VCS_OFF from 0.2V to 0.5V
*
TSS
7
ms
OLP (Over Load Protection)
OLP Trip Level
VOLP
2.65
2.8
2.95
V
OLP delay time
After soft-start
TD_OLP
88
ms
Over Voltage Protection (CS Pin)
CS OVP Trip Current Level
VCSOVP
0.29
0.31
0.33
V
CS OVP De-bounce Cycle
*
TD_CSOVP
8
Cycle
BNO Pin Auto Protection (BNO Pin)
Brownout Turn-On Trip Level
VBNI
1
1.05
1.1
V
Brownout Turn-Off Trip Level
VBNO
0.9
0.95
1
V
BNO Pin De-bounce Time
TBNO
75
ms
Internal OTP Protection
OTP Level
*
TUP_OTP
140
℃
OTP Hysteresis
*
TINOTP_HYS
12
℃
SDSP (Secondary Diode Short Protection)
SDSP CS Pin Level
Secondary diode short
VCS_SDSP
1.2
V
De-bounce Cycle
*
TD_SDSP
4
Cycle
*: Guaranteed by design.



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