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TS19376 数据表(PDF) 2 Page - Taiwan Semiconductor Company, Ltd

部件名 TS19376
功能描述  1A Step-down High Brightness LED Driver
Download  8 Pages
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制造商  TSC [Taiwan Semiconductor Company, Ltd]
网页  http://www.taiwansemi.com
标志 TSC - Taiwan Semiconductor Company, Ltd

TS19376 数据表(HTML) 2 Page - Taiwan Semiconductor Company, Ltd

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


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