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TS19376 Datenblatt(PDF) 1 Page - Taiwan Semiconductor Company, Ltd

Teilenummer TS19376
Bauteilbeschribung  1A Step-down High Brightness LED Driver
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Hersteller  TSC [Taiwan Semiconductor Company, Ltd]
Direct Link  http://www.taiwansemi.com
Logo TSC - Taiwan Semiconductor Company, Ltd

TS19376 Datenblatt(HTML) 1 Page - Taiwan Semiconductor Company, Ltd

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TS19376
1A Step-down High Brightness LED Driver
1/8
Version: A12
SOT-89-5L
General Description
The TS19376 is a continuous conduction mode inductive step-down converter, designed for driving single or
multiple series connected LED efficiently from a voltage source higher than the total LED chain voltage. The
device operates from an input supply between 8V and 32V and provides an externally adjustable output current of
up to 1A. Depending upon the supply voltage and external components, the TS19376 can provide more than 15
watts of output power. The TS19376 includes the power switch and a high-side output current sensing circuit,
which uses an external resistor to set the nominal average output current, and a dedicated DIM input accepts a
wide range of pulsed dimming. Applying a voltage of 0.3V or lower to the DIM pin turns the output off and switches
the device into a low current standby state
Features
Wide input voltage range: 8V to 32V
Up to 1A output current
5000:1 Dimming
Single pin on/off and brightness control using PWM
Up to 1MHz switching frequency
Typical 5% output current accuracy
High-Side Current Sense
Hysteretic Control: No Compensation
Adjustable Constant LED Current
Application
White LED Backlighting
High Power LED Application
LED Lighting Equipment
Ordering Information
Part No.
Package
Packing
TS19376CY5 RMG
SOT-89-5L
1Kpcs / 7” Reel
Note: “G” denotes Halogen Free Product.
Absolute Maximum Rating
Parameter
Symbol
Limit
Unit
Supply Voltage
VIN
-0.3 to 40
V
Driver output Voltage
SW
-0.3 to 40
V
Current sense input (Respect to VIN)
CSN
+0.3 to (-6.0)
V
Logic level dimming input
DIM
-0.3 to +6
V
Switch output current
ISW
1.0
A
Power Dissipation
PDMAX
1.5
W
Operation Junction Temperature Range
TJ
-40 to 125
°C
Storage Temperature
TSTG
-55 to 150
°C
Thermal Resistance from Junction to case
θJC
15
°C/W
Thermal Resistance from Junction to ambient
θJA
50
°C/W
Note: θJA is measured with the PCB copper area (need connect to Exposed Pad) of approximately 1 in
2(Multi-layer).
Pin Definition:
1. SW
2. GND
3. DIM
4. CSN
5. VIN


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