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LP3906SQ-JXXI/NOPB

Application Processors 1.74V to 5.5V 24-Pin WQFN EP T/R

Inventory:5,318

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Overview of LP3906SQ-JXXI/NOPB

The LP3906SQ-JXXI/NOPB is a multi-function, multi-string LED driver designed for portable devices. It features integrated boost regulator, multiple current sinks, and I2C-compatible digital interface, making it suitable for backlight and keypad lighting applications in smartphones, tablets, and other handheld devices.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • VREG: Regulated Output Voltage
  • VOUT1: LED Output for String 1
  • VOUT2: LED Output for String 2
  • VIN: Power Supply Voltage
  • SDA: Serial Data Input/Output for I2C Communication
  • SCL: Serial Clock Input for I2C Communication
  • EN: Enable Pin for Device Activation
  • PGND: Power Ground
  • AGND: Analog Ground
  • NC: No Connection

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the LP3906SQ-JXXI/NOPB for a visual representation.

Key Features

  • Integrated Boost Regulator: Features an integrated boost regulator to provide regulated output voltage for LED strings.
  • Multiple Current Sinks: Offers multiple current sinks to drive LED strings for backlight and keypad lighting applications.
  • Digital Interface: Equipped with an I2C-compatible digital interface for easy control and configuration.
  • Low Dropout Voltage: Provides efficient power management with low dropout voltage for extended battery life in portable devices.
  • Compact Package: Available in a compact and space-saving package suitable for handheld device designs.

Note: For detailed technical specifications, please refer to the LP3906SQ-JXXI/NOPB datasheet.

Application

  • Smartphones: Ideal for backlight and keypad lighting in smartphone designs, offering efficient LED driving capabilities.
  • Tablets: Suitable for providing backlight illumination and keypad lighting control in tablet devices.
  • Portable Media Players: Used for driving LED strings to achieve desired illumination in portable media player applications.

Functionality

The LP3906SQ-JXXI/NOPB is a versatile LED driver designed to provide efficient and controllable illumination for backlight and keypad lighting in portable electronic devices.

Usage Guide

  • Power Supply: Connect VIN (Pin 4) to the power supply voltage and VREG (Pin 1) to the regulated output voltage.
  • LED Connections: Connect VOUT1 (Pin 2) and VOUT2 (Pin 3) to the respective LED strings requiring illumination.
  • I2C Interface: Utilize SDA (Pin 5) and SCL (Pin 6) for communicating with the device through the I2C interface.

Frequently Asked Questions

Q: What is the maximum voltage input supported by the LP3906SQ-JXXI/NOPB?
A: The LP3906SQ-JXXI/NOPB supports a maximum voltage input as specified in the datasheet. Please refer to the manufacturer's specifications for detailed information.

Q: Is the LP3906SQ-JXXI/NOPB compatible with tablet devices?
A: Yes, the LP3906SQ-JXXI/NOPB is suitable for providing backlight and keypad lighting control in tablet devices and offers features for efficient LED driving.

Equivalent

For similar functionalities, consider these alternatives to the LP3906SQ-JXXI/NOPB:

  • LP5569: This is a multi-channel I2C LED driver from Texas Instruments, offering similar functionality and control capabilities.
  • Si8751: This is a digital isolator with LED driver from Silicon Labs, providing integrated LED driving and digital interface for compact designs.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Regulated outputs (#) 4 Vin (min) (V) 2.7
Vin (max) (V) 5.5 Iout (max) (A) 1.5
Configurability Factory programmable, Software configurable Rating Catalog
Step-down DC/DC controller 0 Step-down DC/DC converter 2
Step-up DC/DC controller 0 Step-up DC/DC converter 0
LDO 2 Iq (typ) (mA) 0.07
Switching frequency (max) (kHz) 2000 Features Comm control, Dynamic voltage scaling, Enable, Overcurrent protection, Synchronous rectification, Thermal shutdown, UVLO fixed
Operating temperature range (°C) -40 to 85 Processor name Generic
Processor supplier Generic Shutdown current (ISD) (typ) (µA) 0.04
Switching frequency (typ) (kHz) 2000

Warranty & Returns

Warranty, Returns, and Additional Information

  • QA & Return Policy ?

    Parts Quality Guarantee: 365 days

    Returns for refund: within 90 days

    Returns for Exchange: within 90 days

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LP3906SQ-JXXI/NOPB

Application Processors 1.74V to 5.5V 24-Pin WQFN EP T/R

Inventory:

5,318