WS9445 Datasheet, PDF (4/9 Pages) List of Unclassifed Manufacturers – Non-isolated BuckOffline LED Driver

WS9445 Product Description
Electrical Characteristics (Unless otherwise specified, VCC=15V and TA =25 ℃)
Symbol
Parameter
Supply Voltage Section
VCC_CLAMP
VCC Clamp Voltage
UVLO_on
Chip Startup Voltage
UVLO_off
VDD Under voltage
protection
Ist
Startup Current
Iop
Operating Current
Current Sense Section
Vcs_th
TLEB
Threshold Voltage for
Peak Current Limit
Leading Edge Blanking
Time for Current Sense
TDELAY
Switch Off Delay Time
Internal Time Control Section
Toff_max
Minimum OFF Time
Toff_min
Maximum OFF Time
Ton_max
Maximum On Time
MOSFET Section
Rds_on
Static Drain-source
On-State Resistance
BVdss
Drain-Source Breakdown
Voltage
Drain-Source Leakage
Idss
Current
Thermal Regulation Section
TREG
Thermal Regulation
Temperature
Conditions
10mA
VCC= 13V
Fop=70KHz
Rovp=70k
Vgs=15V,Ids=0.5A
Vgs=0V,Ids=250uA
Vgs=0V,Vds=500V
Min
Typ
Max
17.8 18.8 19.8
14
15
16.2
9
9.5
10
150
220
300
100
170
250
390
400
410
350
200
310
4.5
100
2
600
10
150
Units
V
V
V
uA
uA
mV
ns
ns
us
us
us
Ω
V
uA
℃
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WINSEMI MICROELECTRONICS
WINSEMI MICROELECTRONICS
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