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See Technical Specifications

TPS61169DCKR

Compact LED driver

Manufacturer:

Texas Instruments
Mfr.Part #:

TPS61169DCKR
Datasheet:

TPS61169DCKR Datasheet (PDF)
Number of channels:

1
Vin (min) (V):

2.7
Vin (max) (V):

5.5
Vout (min) (V):

2.7
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TPS61169DCKR General Description

The TPS61169DCKR is a step-up DC-DC converter manufactured by Texas Instruments. It is designed to efficiently boost input voltages to higher levels, making it suitable for applications such as LED backlighting in LCD displays and driving multiple LEDs in series. With a wide input voltage range of 2.7V to 18V, it offers flexibility in various power supply designs. The device is capable of delivering output voltages up to 38V and can handle output currents up to 1.2A, making it suitable for driving multiple LEDs or other loads requiring higher voltages.Equipped with a built-in current limit and thermal shutdown protection, the TPS61169DCKR ensures safe operation even under fault conditions, enhancing system reliability. It features a small package size and requires minimal external components, simplifying design integration and reducing board space. The device also offers adjustable switching frequency and PWM brightness control, allowing for optimization of efficiency and dimming control in LED backlighting applications.

Key Features

The TPS61169DCKR is a boost converter IC designed for driving white LEDs

It operates from a single-cell lithium-ion battery

Features a 1.5MHz fixed-frequency switch-mode controller

Offers a high efficiency step-up converter with up to 91% efficient peak currents

Provides adjustable PWM brightness control and over-current protection

Application

The TPS61169DCKR is commonly used in small electronic devices such as smartphones, tablets, and portable media players to provide efficient and adjustable LED backlighting for displays

It is also used in car dashboard displays, industrial control panels, and other applications requiring precise voltage regulation for LED lighting

Specifications

Number of channels	1	Vin (min) (V)	2.7
Vin (max) (V)	5.5	Vout (min) (V)	2.7
Vout (max) (V)	38	Type	Inductive
Switching frequency (max) (kHz)	1500	Duty cycle (max) (%)	100
LED current per channel (mA)	400	Peak efficiency (%)	90
Topology	Boost	Features	OVP, PWM control
Operating temperature range (°C)	-40 to 85	Rating	Catalog