LTC4040EUFD#TRPBF
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Analog Devices Inc. LTC4040EUFD#TRPBF

Manufacturer No:
LTC4040EUFD#TRPBF
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC BATT PWR MGMT MULTI 1C 24QFN
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The LTC4040EUFD#TRPBF is a comprehensive 2.5A battery backup power manager produced by Analog Devices Inc. This device is designed to provide a complete 3.5V to 5.5V supply rail battery backup system, incorporating a high current step-up DC/DC regulator. It is particularly useful in applications where reliable power backup is crucial, ensuring continuous operation during power failures or battery depletion.

Key Specifications

ParameterMinTypMaxUnits
Input Voltage Range3.55.5V
Output Current2.5A
Step-Down (Buck) Converter Switching Frequency1.962.252.65MHz
High Side Switch On-Resistance (Normal Mode)130
Low Side Switch On-Resistance (Normal Mode)120
PMOS Switch Current Limit34.3A
Logic Low Input Voltage0.4V
Logic High Input Voltage1.2V
Operating Junction Temperature Range-40125°C
Package Type24-Lead QFN (4mm × 5mm × 0.75mm)

Key Features

  • Complete 3.5V to 5.5V supply rail battery backup system
  • High current step-up DC/DC regulator for battery backup
  • Low profile 24-lead QFN package (4mm × 5mm × 0.75mm)
  • Operating junction temperature range: -40°C to 125°C
  • End-of-charge indication and bad-battery termination
  • Programmable charge current and charge termination voltage

Applications

  • Fleet and asset tracking systems
  • Automotive GPS data loggers
  • Automotive telematics systems
  • Toll collection systems
  • Security systems
  • USB powered devices

Q & A

  1. What is the primary function of the LTC4040EUFD#TRPBF? The primary function is to provide a complete 3.5V to 5.5V supply rail battery backup system using a high current step-up DC/DC regulator.
  2. What is the maximum output current of the LTC4040EUFD#TRPBF? The maximum output current is 2.5A.
  3. What is the switching frequency of the step-down (buck) converter? The switching frequency ranges from 1.96 MHz to 2.65 MHz.
  4. What is the operating junction temperature range of the LTC4040EUFD#TRPBF? The operating junction temperature range is -40°C to 125°C.
  5. What type of package does the LTC4040EUFD#TRPBF come in? It comes in a 24-lead QFN package (4mm × 5mm × 0.75mm).
  6. What are some common applications of the LTC4040EUFD#TRPBF? Common applications include fleet and asset tracking, automotive GPS data loggers, automotive telematics systems, toll collection systems, security systems, and USB powered devices.
  7. How does the LTC4040EUFD#TRPBF indicate the end of charge? It provides an end-of-charge indication through the PROG pin average voltage.
  8. Can the charge current be programmed in the LTC4040EUFD#TRPBF? Yes, the charge current can be programmed.
  9. What happens when the battery voltage falls below a certain threshold? The device initiates bad-battery termination when the battery voltage falls below the specified threshold (VLOWBAT - ΔVLOWBAT).
  10. Where can I find more detailed specifications and documentation for the LTC4040EUFD#TRPBF? Detailed specifications and documentation can be found on the official Analog Devices website and through distributors like Digi-Key, Mouser, and Farnell.

Product Attributes

Function:Power Management
Battery Chemistry:Multi-Chemistry
Number of Cells:1
Fault Protection:Over Voltage
Interface:- 
Operating Temperature:-40°C ~ 125°C (TJ)
Mounting Type:Surface Mount
Package / Case:24-WFQFN Exposed Pad
Supplier Device Package:24-QFN (4x5)
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In Stock

$7.59
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Same Series
LTC4040EUFD#PBF
LTC4040EUFD#PBF
IC BATT PWR MGMT MULTI 1C 24QFN
LTC4040IUFD#TRPBF
LTC4040IUFD#TRPBF
IC BATT PWR MGMT MULTI 1C 24QFN
LTC4040IUFD#PBF
LTC4040IUFD#PBF
IC BATT PWR MGMT MULTI 1C 24QFN

Similar Products

Part Number LTC4040EUFD#TRPBF LTC4041EUFD#TRPBF LTC4040IUFD#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active
Function Power Management Power Management Power Management
Battery Chemistry Multi-Chemistry Multi-Chemistry Multi-Chemistry
Number of Cells 1 1 1
Fault Protection Over Voltage Over Voltage Over Voltage
Interface - - -
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 24-WFQFN Exposed Pad 24-WFQFN Exposed Pad 24-WFQFN Exposed Pad
Supplier Device Package 24-QFN (4x5) 24-QFN (4x5) 24-QFN (4x5)

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