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TS19377CSRLG Datasheet(PDF) 2 Page - Taiwan Semiconductor Company, Ltd

Part # TS19377CSRLG
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

TS19377CSRLG Datasheet(HTML) 2 Page - Taiwan Semiconductor Company, Ltd

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TS19377
2A Buck (Step-down) WLED Driver
2/7
Version: A11
Absolute Maximum Rating
Parameter
Symbol
Limit
Unit
VCC Pin Voltage
VCC
VSS - 0.3 to VSS + 25
V
Feedback Pin Voltage
VFB
VSS - 0.3 to VCC
V
ON/OFF Pin Voltage
VEN
VSS - 0.3 to VCC + 0.3
V
Switch Pin Voltage
VSW
VSS - 0.3 to VCC + 0.3
V
Power Dissipation
PD
Internally limited
mW
Storage Temperature Range
TST
-40 to +150
°C
Operating Temperature Range
TOP
-40 to +125
°C
Operating Supply Voltage
VOP
+3.6 to +23
V
Thermal Resistance from Junction to case
θ
JC
25
°C/W
Electrical Specifications (VIN=12V, TA =25
oC, unless otherwise noted)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Feedback Voltage
VFB
IOUT=0.2A
0.24
0.25
0.26
V
Quiescent Current
ICCQ
VFB=1.2V force driver off
--
3
5
mA
Feedback Bias Current
IFB
IOUT=0.1A
--
0.1
0.5
uA
Shutdown Supply Current
ISD
VEN =0V
--
2
10
uA
Switch Current
ISW
2.5
--
--
A
Line Regulation
△VOUT/VOUT
VCC=5V~23V, IOUT=0.2A
--
1
2
%
Load Regulation
△VOUT/VOUT
IOUT=0.1 to 2A
--
0.2
0.5
%
Oscillation Frequency
FOSC
260
330
400
KHz
EN Pin Logic input threshold voltage
VSH
High (regulator ON)
2.0
--
--
V
VSL
Low (regulator OFF)
--
--
0.8
EN Pin Input Current
ISH
VEN=2.5V (ON)
--
20
--
uA
ISL
VEN=0.3V (OFF)
--
-10
--
uA
Internal MOSFET RDSON
RDSON
VCC=5V, VFB=0V
--
100
140
m
VCC=12V, VFB=0V
--
70
100
Efficiency
EFFI
VOUT = 5V
IOUT=1A
--
91
--
%
IOUT=2A
--
91
--
Thermal shutdown Temp
TSD
--
140
--
°C



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