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TS19378 Datasheet(PDF) 2 Page - Taiwan Semiconductor Company, Ltd

Part # TS19378
Description  2A Buck (Step-down) WLED Driver
PDF  7 Pages
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Manufacturer  TSC [Taiwan Semiconductor Company, Ltd]
Direct Link  http://www.taiwansemi.com
Logo TSC - Taiwan Semiconductor Company, Ltd

TS19378 Datasheet(HTML) 2 Page - Taiwan Semiconductor Company, Ltd

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TS19378
2A Buck (Step-down) WLED Driver
2/7
Version: A13
Absolute Maximum Rating
Parameter
Symbol
Limit
Unit
VCC Pin Voltage
VCC
VSS - 0.3 to VSS + 45
V
Feedback Pin Voltage
VFB
VSS - 0.3 to 6
V
EN/SS Pin Voltage
VEN/SS
VSS - 0.3 to 6
V
OVP Pin Voltage
VOVP
VSS - 0.3 to VCC
V
COMP Pin Voltage
VCOMP
VSS - 0.3 to 6
V
VGATE Pin Voltage
VGATE
VSS - 0.3 to VCC
V
Switch Pin Voltage
VSW
VSS - 0.3 to VCC + 0.3
V
Power Dissipation
PD
Internally limited
mW
Storage Temperature Range
TST
-65 to +150
°C
Operating Junction Temperature Range
TOJP
-40 to +125
°C
Operating Supply Voltage
VOP
8 to 40
V
Output Voltage
VOUT
38
V
Thermal Resistance from Junction to case
θ
JC
15
°C/W
Thermal Resistance from Junction to ambient
θ
JA
40
°C/W
Note: θJA is measured with the PCB copper area(need connect to Exposed Pad) of approximately 1.5 in
2(Multi-layer).
Electrical Specifications (VIN=12V, TA =25
oC, unless otherwise noted)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Feedback Voltage
VFB
IOUT=0.2A
0.19
0.20
0.21
V
Quiescent Current
ICCQ
VFB=0.5V force driver off
--
3
6
mA
Feedback Bias Current
IFB
IOUT=0.1A
--
0.1
0.5
uA
Shutdown Supply Current
ISD
VEN =0V
--
150
300
uA
Switch Current Limit
ISWLIMIT
2.5
--
--
A
Oscillation Frequency
FOSC
240
300
360
KHz
Short Frequency
FOSC
--
50
--
KHz
EN/SS Pin Shutdown Logic input
threshold voltage
VSL
Low (regulator OFF)
--
--
0.8
V
EN/SS Pin Input Current
IEN/SS
VEN=0V
--
5
--
uA
Internal MOSFET RDSON
RDSON
VCC=5V, VFB=0V
--
130
180
mΩ
OVP Sense Voltage
VOVP
0.833
0.850
0.867
V
Thermal shutdown Temp
TSD
--
150
--
°C
Thermal shutdown Hysteresis
TSH
--
40
--
°C



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