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| TS19460_15 Datasheet, PDF (3/9 Pages) Taiwan Semiconductor Company, Ltd – AC/DC WLED Driver with Average-Mode Constant Current Control | |||
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TS19460
Taiwan Semiconductor
ELECTRICAL SPECIFICATIONS (TA= 25oC, VIN= 12V, VLD=PWM=VDD, unless otherwise noted)
PARAMETER
SYMBOL
CONDITION
MIN TYP MAX UNIT
Average Current Sense Logic
Current Sense Reference
Voltage
VCS
238 250 262
mV
LD to Current Sense Ratio
LD input Voltage Shutdown
Av(LD)
VLD(OFF)
VLD falling
-- 0.18 --
mV
--
150
--
mV
LD input Voltage Enable
âVLD(OFF)
VLD rising
--
200
--
mV
Current Sense Blanking Interval
TBLANK
150
--
280
ns
Minimum On-Time
Off Time
Max. Steady-State Duty Cycle
Short Circuit Protection
TON(min)
TOFF
DMAX
VCS= VCS + 30mV
RT=1MΩ
RT=226kΩ
--
--
1
μS
32
--
48
μS
8
--
12
75
--
--
%
Hiccup Threshold Voltage
VCS
410
--
470
mV
Current Limit Delay CS to Gate
Short Circuit Hiccup Time
TDELAY
THICCUP
VCS= VCS + 30mV
--
--
150
ns
330
--
460
μS
Minimum On-Time (Short Circuit)
Gate Driver
TON(min)
VCS= VDD
--
--
430
μS
Gate Sourcing Current
ISOURCE
VGATE=0V, VDD=7.5V
165
--
--
mA
Gate Sinking Current
ISINK
VGATE=VDD, VDD=7.5V
165
--
--
mA
Gate Output Rise Time
TRISE
CGATE=500pF,
VDD=7.5V
--
30
50
ns
Gate Output Fall Time
TFALL
CGATE=500pF,
VDD=7.5V
--
30
50
ns
Note:
1. Stresses listed as the above âAbsolute Maximum Ratingsâ may cause permanent damage to the device. These
are for stress ratings. Functional operation of the device at these or any other conditions beyond those
indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating
conditions for extended periods may remain possibility to affect device reliability.
2. Limited by package power dissipation, whichever is lower.
3. Thermal Resistance is specified with the component mounted on a low effective thermal conductivity test board
in free air at TA=25°C.
4. Denotes the specifications which apply over the full operating ambient temperature range of -40ºC<TA<+125ºC.
Document Number: DS_P0000188
3
Version: D15
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