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TPS61042DRB

The Texas Instruments TPS61042DRB is a constant current LED driver designed for white LED applications. It operates with an input voltage range of 1.8 V to 6 V and offers up to 85% efficiency.

✓ Total Stock: 96,760 pcs

$ Price Range: $0.20

TPS61042DRB Available from 2 distributors

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Romaks Technologies ✓ Non-Authorised Inventory information	75,000 pcs On Request	75000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Optech Co.,Limited ✓ Non-Authorised Inventory information	21,760 pcs On Request	21760 pcs	On Request	1	On Request	On Request	04+	On Request	On Request

TPS61042DRB Specifications Quick View

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Category	New Products
Manufacturer Name	Texas Instruments

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TPS61042DRB Description

Short technical summary and product information.

The Texas Instruments TPS61042DRB is a high-frequency boost converter with a constant current output, specifically designed to drive white LEDs. It features an input voltage range from 1.8 V to 6 V and can achieve up to 85% efficiency.

This LED driver allows for precise brightness control using either a PWM signal with a frequency range of 100 Hz to 50 kHz or an analog signal applied to the control pin. The LED current is set by an external sense resistor (Rs) and is regulated by the feedback pin (FB). The device includes an internal 30V switch and overvoltage protection for enhanced safety.

It is available in a small 3 mm x 3 mm QFN package, making it suitable for space-constrained designs. The TPS61042DRB is ideal for backlight and sidelight displays in PDAs, pocket PCs, smartphones, and handheld devices.

Key electrical characteristics include a low no-load quiescent current of 38 µA typical and a shutdown current of 0.1 µA typical. The device operates with small output capacitors down to 100 nF.

TPS61042DRB Quick Information

Product Type: LED Driver

Series: TPS61042

Canonical Name: Texas Instruments TPS61042DRB Constant Current LED Driver

Subcategory: LED Drivers

TPS61042DRB Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

TPS61042DRB Estimated Pricing

Qty	Low	High
1+	$0.20	$0.20

Estimated market price range - modelled values for guidance only, not live distributor offers.

TPS61042DRB Features

Drives white LEDs with constant current.
Input voltage from 1.8 V to 6 V.
Up to 85% efficiency.
PWM or analog brightness control.
Small 3 mm x 3 mm QFN package.

TPS61042DRB Applications

Backlight for displays.
Sidelight for displays.
Portable devices.
Smartphones and PDAs.

TPS61042DRB FAQs

6 frequently asked questions generated from this part’s specifications.

What is the input voltage range of the TPS61042DRB?

The input voltage range is 1.8V to 6V.

What is the efficiency of the TPS61042DRB?

The efficiency is up to 85%.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What package is the TPS61042DRB available in?

The TPS61042DRB is available in a QFN package (DRB code).

What is the quiescent current of the TPS61042DRB?

The typical no-load quiescent current is 38µA.

What is the maximum internal switch current?

The maximum internal switch current is 500mA.