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부품번호 | WS3412AH 기능 |
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기능 | Non-isolated Buck APFC Offline LED Driver | ||
제조업체 | WINSEMI | ||
로고 | |||
WS3412AH ProductDescription
Features
Specially Optimized for the EMI
Internal 600V Power MOSFET
Active PFC for High Power Factor and Low THD
Critical Conduction Mode Operation
System Efficiency up to 95%
Without auxiliary winding
Excellent Line and Load Regulation
±3% LED Output Current Accuracy
Thermal Regulation Function
LED Short/Open Protection
Current Sensing Resistor Open Protection
Auto Fault Recovery
Available in SOP7 Package
Applications
E27 LED Bulb, Spot Light
PAR30, PAR38 Lamp
T8/T10 LED String
Other LED Lighting
Typical Application
Non-isolated Buck APFC Offline LED Driver
Description
The WS3412AH is a high precision non-isolated buck
driver with active PFC, specially designed for universal input
offline constant current LED lighting. The driver with on-chip
PFC circuit achieves high power factor and low THD.
Operating in critical conduction mode, the power MOSFET
switching loss is reduced and the inductor is fully utilized.
The WS3412AH integrates a 600V power MOSFET. With
few external components, the LED output current can be
precisely controlled.
The WS3412AH offers rich protection functions to
improve the system reliability, including LED open circuit
protection, LED short circuit protection, CS resistor open
circuit protection and cycle by cycle current limit. All the
protection functions are auto-recovery. The system reliability
is further improved by the thermal regulation function. The
output current is reduced when the driver is over temperature.
The WS3412AH has ultra low start up current and ultra
low operating current.
The WS3412AH is available in SOP7 Package.
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WS3412AH ProductDescription
Electrical Characteristics (Unless otherwise specified, VCC=8V and TA =25 ℃)
Symbol
Parameter
Conditions
Min
Supply Voltage Section
Vcc_clamp
VCC Clamp Voltage
7.5
Icc_clamp
VCC Clamp Current
VCC_ST
VCC Turn On Threshold
VCC Rising
7.07
Vuvlo_HYS
VCC Turn Off hysteresis
VCC Falling
Ist VCC Startup Current
VCC<VCC_ST-0.5V
Iop VCC Operating Current
Current Sense Section
Vocp
Over current
Protectionthreshold
Leading Edge Blanking Time
TLEB for Current Sense
Td Switch off Delay Time
Compensation Section
VREF
Internal Reference Voltage
194
VCL COMP Low Clamp Voltage
VCH COMP High Clamp Voltage
Internal driver
TOFF_MIN
Minimum Off Time
TON_MAX
Maximum On Time
Feedback Section
FB Over Voltage Protection
VFB Threshold
VZCD
FB Falling Edge
Threshold Voltage
Power MOSFET
RDSON
Static Drain-source
On-resistance
Drain-Source Breakdown
VDS Voltage
600
Thermal Regulation Section
TREG
Thermal Regulation
Temperature
Typ
8.0
5
7.57
1.32
70
400
1.5
350
200
200
1.5
4
3
40
1.6
0.2
6.8
150
Max Units
8.5 V
mA
8.07 V
V
100 uA
uA
V
ns
ns
206 mV
V
V
us
us
V
V
8.5 Ω
V
℃
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4페이지 WS3412AH ProductDescription
Package Information
SOP7Package Outline Dimensions
A
A1
0.5*0.125±0. 05
球形标记
A2 A3
θ3
R1
C4
R2
Symbol
A
B
C
A1
A2
A3
B1
B2
C1
C2
C3
C4
D
D1
Dimensions in Millimeters
Min Max
4.70 5.10
3.70 4.10
1.30 1.50
0.35 0.48
1.27TYP
0.345TYP
5.80 6.20
5.00TYP
0.55 0.70
0.55 0.70
0.05 0.225
0.203TYP
1.05TYP
0.40 0.80
Winsemi
Dimensions in Inches
Min Max
0.185
0.201
0.146
0.161
0.051
0.059
0.014
0.019
0.05TYP
0.014TYP
0.228
0.244
0.197TYP
0.022
0.028
0.022
0.028
0.002
0.009
0.008TYP
0.041TYP
0.016
0.031
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7페이지 | |||
구 성 | 총 8 페이지수 | ||
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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 |
WS3412AH | Non-isolated Buck APFC Offline LED Driver | WINSEMI |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |