WS3220A Datasheet, PDF (4/9 Pages) Shenzhen Winsemi Microelectronics Co., Ltd – WS3220A High Precision PSR Constant Current LED Driver

WS3220A Product Description
Electrical Characteristics (TA=25℃，VCC=14V, if not otherwise noted)
symbol
parameter
Test condition
Supply Voltage (VCC)
I_VCC_ST
Start up current
VCC=UVLO_ON-1V
I_OP
Operation Current
Fop=50Khz
UVLO_ON
Turn on threshold Voltage
VCC rising
UVLO_OFF
Turn-off threshold Voltage
VCC falling
VCC_Clamp VCC Clamp voltage
Icc=1mA
Current Sense Section
TLEB
Leading edge Blanking Time
VTH_OC
OCP threshold
Tdelay
Switch off delay time
Frequency Section
Fmin
Minimum operation frequency
Fmax
Maximum operation frequency
Maximum Duty Cycle
Dmax
Maximum duty cycle
MOSFET Section
Rds_on
Static drain-source on-resistance Vgs=10V/Ids=0.4A
BVdss
Drain-source breakdown voltage Vgs=0V/Ids=250uA
Idss
Drain-source leakage current
Vgs=0V/Vds=650V
Over Temperature Protection
Tsd
Thermal shutdown threshold
Tsd_hys
Thermal shutdown hysteresis
Min Typ Max Unit
-
60
-
150
12.5 13.8
8
9
-
18.2
100 uA
250 uA
15.5 V
10
V
-
V
-
500
-
ns
485 500 515 mV
-
100
-
ns
-
5
-
Khz
-
90
-
Khz
-
42
-
%
-
-
17
Ω
650
-
-
V
-
-
10 uA
-
150
-
℃
-
25
-
℃
WIN SEM I M ICROELECTRON ICS
WIN SEM I M ICROELECTRON ICS
WIN SEM I M ICROELECTRON ICS
www.winsemi.com Tel : [phone] Fax : [phone]
WIN SEM I M ICROELECTRON ICS
WIN SEM I M ICROELECTRON ICS
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