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부품번호 | WS3241 기능 |
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기능 | High Precision PSR LED Constant Current Driver | ||
제조업체 | WINSEMI | ||
로고 | |||
WS3241 ProductDescription
High Precision PSR LED Constant Current Driver
Features
Built-in 650V UHV Power MOS
LED Constant Current: ±5%
Fixed Primary Peak Current: 185mA
Without the Secondary winding
Start up time less than 100ms
High precision constant current regulation due to
patented CC control
Built-in line compensation
Ultra low operation current
Maximum power 4W
LED open/short protection
Floating pin protection
Excellent EMI performance with PFM control
Cycle-by-cycle current limit
Built-in leading Edge Blanking
VDD Under Voltage Lockout(UVLO)
Built-in over temperature protection
Applications
LED lighting
Description
WS3241 is a high precision primary side feedback
constant current LED driver, suitable for flyback isolated
LED in sub 4W power range at universal AC input. It
operates in discontinuous current mode.
WS3241 integrates 650V power MOS. It operates in
primary side sensing and regulation, without a secondary
feedback circuit, also need not the auxiliary transformer
winding detection and power supply, only need few
peripheral components can realize constant current,
greatly saves the cost and size of the system.
The start time of WS3241 is less than 100ms at
universal AC input with the high voltage start technology,
realizing instant bright of the LED lamp.
The current precision is less than ± 5%
with high precision current sampling circuit and line
compensation. With patented constant current controlling
mode, excellent linear regulation is achieved.
WS3241 provides a variety of comprehensive
protection mode, including: cycle by cycle current limit
protection(OCP), LED open/short circuit protection, under
voltage protection and clamping, over temperature
protection, pin floating protection etc..
WS3241 is offered in TO-92 package.
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
Copyright@Winsemi Microelectronics Co., Ltd., All right reserved.
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
1201
WS3241 ProductDescription
Electrical Characteristics (Unless otherwise specified, VCC=8V and TA =25 ℃)
Symbol
Parameter
Conditions
Min Typ Max Units
Supply Voltage Section
VDD_C
LAMP
VDD Clamping Voltage
10mA
6.3 V
VDD_re
g
VDD Power Supply
5.8 6.1 V
UVLO_
off
VDD Under Voltage Lockout
5.3 V
I_VDD
Quiet Current
VDD=6.1V
150 250 uA
Current Sense Section
Threshold Voltage for Peak
Vcs
Current Limit
490 500 510 mV
TLEB
Lead Edge Blanking
500 ns
TDELA
Y
Shutdown Delay
100 ns
D_max
Maximum Duty Cycle
50 %
Feedback Input Section
Toff_m Maximum Demagnetization
ax time
Toff_mi Minimum Demagnetization
n time
Tdem_ Open loop detection reference
OVP
Demagnetization time
Tcc/Tde Cycle time/demagnetization
m time @constant current
Power MOSFET
255 us
3.6 us
4.5 us
2
Rds_on
Power On Resistor
Idrain=50mA
30 Ω
BVdss
Breakdown Voltage
650 V
Leakage Current of Power
Idss
MOS
Over Temperature Protection
TREG
Thermal Regulation
Temperature
10 uA
135 ℃
www.wWIiNnSsEMeImMi.IcCRoOmELECTTReOlN:IC+S 86-7W5IN5S-E8M2I50MI6CR2O8E8LECTRFOaNIxCS: +86W-7IN5S5EM-8I 2M5I0CR6O2EL9E9CTRONICS
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4페이지 WS3241 ProductDescription
Package Information
TO-92 Package Outline Dimensions
E
Q1
b
c
ee
12 3
Symbol
A
b
c
D
E
e
L
Q1
Dimensions in Millimeters
Min Max
3.30 3.90
0.35 0.55
0.31 0.51
4.30 4.90
4.30 4.90
1.17 1.37
12.5 15.5
0.74 0.89
Winsemi
Dimensions in Inches
Min Max
0.130
0.154
0.014
0.022
0.012
0.020
0.169
0.193
0.169
0.193
0.046
0.054
0.492
0.610
0.029
0.035
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
www.winsemi.com Tel : +86-755-8250 6288 Fax : +86-755-8250 6299
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7페이지 | |||
구 성 | 총 8 페이지수 | ||
다운로드 | [ WS3241.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
WS3240 | High Precision PSR LED Constant Current Driver | WINSEMI |
WS3241 | High Precision PSR LED Constant Current Driver | WINSEMI |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |