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TL4242TDRJRQ1 Datasheet(PDF) 2 Page - Texas Instruments

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No. de pieza TL4242TDRJRQ1
Descripción Electrónicos  ADJUSTABLE LED DRIVER
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TL4242TDRJRQ1 Datasheet(HTML) 2 Page - Texas Instruments

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background image
Q
I
GND
PWM
ST
REF
D
Bias Supply
Bandgap
Reference
Comparator
+
Status
Delay
8
4
5
6
3
2
1
TL4242-Q1
SLVS732E – JULY 2010 – REVISED JULY 2013
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
ORDERING INFORMATION(1)
TA
ORDERABLE PART NUMBER(2)
TOP-SIDE MARKING
–40°C to 105°C
TL4242TDRJRQ1
4242T
–40°C to 125°C
TL4242QKTTRQ1
TL4242Q
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2)
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
PIN FUNCTIONS
NO.
NAME
DESCRIPTION
DRJ
KTT
Status delay. To set status reaction delay, connect to GND with a capacitor. For no delay, leave
D
5
6
open.
GND
3
4
Ground
NC
7
N/A
No internal connection
PWM
1
2
Pulse-width modulation input. If not used, connect to I.
Q
6
7
Output
REF
4
5
Reference input. Connect to a shunt resistor.
ST
2
3
Status output. Open-collector output. Connect to an external pullup resistor (RPULLUP ≥ 4.7 kΩ).
I
8
1
Input. Connect directly to GND as close as possible to the device with a 100-nF ceramic capacitor.
Thermal
Solder the thermal pad directly to the PCB. Connect to ground or leave floating
pad
Figure 1. FUNCTIONAL BLOCK DIAGRAM
2
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Copyright © 2010–2013, Texas Instruments Incorporated
Product Folder Links: TL4242-Q1


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