TS19376 Ver la hoja de datos (PDF) - TSC Corporation
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TS19376 Datasheet PDF : 8 Pages
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TS19376
1A Step-down High Brightness LED Driver
Electrical Specifications (VIN=12V, TA =25oC, unless otherwise noted)
Characteristics
Symbol
Conditions
Input voltage
Under voltage lock out
UVLO Hysterisis
Max. Switching Frequency
VIN
VUVLO
VUVLO_hys
FSW
VIN rising
VIN falling
Current Sense
Mean current sense threshold voltage
Sense threshold hysteresis
CSN Pin Input Current
DIM Input
VCSN
VCSN_hys
ICSN
VIN–VCSN
VIN–VCSN = 50mV
DIM input voltage High
DIM input voltage Low
Max. DIM Frequency
VDIM_H
VDIM_L
fDIM
fOSC = 500kHz
Duty cycle range of low frequency dimming
Brightness control range
DPWM_LF fDIM = 100Hz
Duty cycle range of high frequency dimming
Brightness control range
DPWM_HF fDIM = 20kHz
DIM pull up resistor to Internal
supply voltage
RDIM
DIM input leakage low
Output Switch
IDIM_L
VDIM = 0
Saturation Voltage
VSAT IOUT = 0.3A
Saturation Voltage
Continuous SW Current
SW Leakage Current
Thermal Shutdown
VSAT
ISWmean
ILEAK
IOUT = 0.8A
Thermal Shutdown Threshold
Thermal Shutdown hysteresis
TSD
TSD-hys
Min Typ Max Units
8
--
32
V
--
7
--
V
-- 1000 --
mV
--
--
1
MHZ
120 130 140 mV
--
±15
--
%
--
0.5
--
µA
2.0
--
--
V
--
--
0.3
V
--
--
50
kHZ
0.02% --
1
-- 5000:1 --
4%
--
1
-- 25:1 --
--
300
--
KΩ
--
70
--
µA
--
0.8 1.0
V
--
1.0 1.2
V
--
--
1.0
A
--
0.5
5
µA
--
150
--
°C
--
35
--
°C
2/8
Version: A12
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