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TL4242QKTTRQ1

LED Driver IC 1 Output Linear Dimming 500mA TO-263 (DDPAK-7)

Manufacturer: Texas Instruments, Inc
Mfr.Part #: TL4242QKTTRQ1
Datasheet: TL4242QKTTRQ1 Datasheet (PDF)
Package/Case: TO-263-7
Product Type: Optoelectronics
RoHS:
Lifecycle: Active
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TL4242QKTTRQ1 General Description

The TL4242-Q1 device is an integrated adjustable constant-current source, driving loads up to 500 mA. One can adjust the output current level through an external resistor. The device design is for supplying high-power LEDs (for example, OSRAM Dragon LA W57B) under the severe conditions of automotive applications, resulting in constant brightness and extended LED lifetime. The device comes in the DRJ (WSON) and KTT (TO-263) package. Protection circuits prevent damage to the device in case of overload, short-circuit, reverse polarity, and overheat. The device provides the connected LEDs protection against reverse polarity as well as excess voltages up to 45 V.

The integrated PWM input of the TL4242-Q1 device permits LED brightness regulation by pulse-width modulation (PWM). The high-input impedance of the PWM input allows operating the LED driver as a protected high-side switch.

Key Features

Qualified for Automotive Applications
AEC-Q100 Test Guidance With the Following Results:
- Device Temperature Grade 2: –40°C to 105°C Ambient Operating Temperature Range for WSON package
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range for TO-263 package
- Device HBM ESD Classification Level H1C
- Device CDM ESD Classification Level C3B
Adjustable Constant Current up to 500 mA (±5%)
Wide Input-Voltage Range up to 42 V
Low Dropout Voltage
Open-Load Detection
Overtemperature Protection
Short-Circuit Proof
Reverse-Polarity Proof

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)LED Drivers	Mfr	Texas Instruments
Series	Automotive, AEC-Q100	Package	Tape & Reel (TR)Cut Tape (CT)Digi-Reel®
Product Status	Active	Type	Linear
Topology	-	Internal Switch(s)	Yes
Number of Outputs	1	Voltage - Supply (Min)	4.5V
Voltage - Supply (Max)	42V	Voltage - Output	16V
Current - Output / Channel	500mA	Frequency	-
Dimming	-	Applications	-
Operating Temperature	-40°C ~ 125°C (TA)	Mounting Type	Surface Mount
Package / Case	TO-263-8, D²Pak (7 Leads + Tab), TO-263CA	Supplier Device Package	DDPAK/TO-263-7
Base Product Number	TL4242	Number of channels	1
Rating	Automotive	Operating temperature range (°C)	-40 to 105, -40 to 125
Vin (min) (V)	4.5	Vin (max) (V)	42
Vout (min) (V)	0	Vout (max) (V)	40
Iout (max) (A)	0.5	Iq (typ) (mA)	12
Features	LED Open Detection, Thermal shutdown	Pin Count	8
Package Category	Other	Released Date	Feb 27, 2019
Last Modified Date	Mar 7, 2023 4:10 PM UTC

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Ratings and Reviews

J**n 03/27/2024

Exactly as described. Well packed. Received in good condition. Haven't chance to test, but seems all good.

R**d 02/23/2021

I can't speak highly enough about Avaq's customer service. They go above and beyond to ensure customer satisfaction. The components arrived quickly and in excellent condition.

M**n 02/17/2021

Impressed with Avaq's top-notch customer service and lightning-fast delivery! The RTS5450 components arrived well-packaged and on time.

I**c 02/26/2020

original! Of 10 pcs 2 do not ring at all as igbt, even increasing the shutter voltage by 2,5 v (2 aa batteries). Ut ~ 4 v, the shutter capacity is about 2 times larger than in the original 3,2 nf.