BQ24100RHLRG4
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Texas Instruments BQ24100RHLRG4

Manufacturer No:
BQ24100RHLRG4
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC BATT CHG LI-ION 1CELL 20VQFN
Delivery:
Payment:
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Product Introduction

Overview

The Texas Instruments BQ24100RHLRG4 is a highly integrated synchronous switched-mode charge management IC, part of the bqSWITCHER™ series. This device is designed for efficient charging of single-, two-, or three-cell Li-Ion and Li-Polymer battery packs. It features a built-in synchronous PWM controller and power FETs, making it ideal for a wide range of portable applications such as handheld products, portable media players, and industrial equipment.

Key Specifications

Parameter Min Typ Max Unit
Supply Voltage (VCC and IN) 4.35 - 16 V
Operating Junction Temperature Range -40 - 125 °C
Output Voltage (for 1-cell operation) - 4.2 - V
Output Voltage (for 2-cell operation) - 8.4 - V
Charge Current Range 150 - 2000 mA
Junction-to-Ambient Thermal Resistance (RθJA) - - 39.2 °C/W

Key Features

  • Integrated synchronous PWM controller and power FETs for up to 2-A charge rate.
  • High-accuracy voltage and current regulation.
  • Charge preconditioning, charge status, and charge reverse leakage protection.
  • Built-in battery detection and thermal shutdown protection.
  • Externally programmable charge voltage and current.
  • Available in a 20-pin, 3.50 mm × 4.50 mm VQFN package.
  • Supports single-, two-, or three-cell Li-Ion and Li-Polymer battery packs.

Applications

  • Handheld products.
  • Portable media players.
  • Industrial and medical equipment.
  • Portable equipment.

Q & A

  1. What is the BQ24100RHLRG4 used for?

    The BQ24100RHLRG4 is used for charging single-, two-, or three-cell Li-Ion and Li-Polymer battery packs in various portable applications.

  2. What is the maximum charge current of the BQ24100RHLRG4?

    The maximum charge current is up to 2 A.

  3. What are the key features of the BQ24100RHLRG4?

    Key features include integrated synchronous PWM controller and power FETs, high-accuracy voltage and current regulation, charge preconditioning, and thermal shutdown protection.

  4. What is the operating junction temperature range of the BQ24100RHLRG4?

    The operating junction temperature range is from -40°C to 125°C.

  5. What package type is the BQ24100RHLRG4 available in?

    The device is available in a 20-pin, 3.50 mm × 4.50 mm VQFN package.

  6. Can the BQ24100RHLRG4 be used for charging LiFePO4 batteries?

    No, the BQ24100RHLRG4 is specifically designed for Li-Ion and Li-Polymer batteries. For LiFePO4 batteries, other models like the bq24105 should be considered.

  7. How is the charge voltage programmed in the BQ24100RHLRG4?

    The charge voltage can be externally programmed using the CELLS pin and appropriate resistor configurations.

  8. What is the purpose of the TS pin in the BQ24100RHLRG4?

    The TS pin is used for temperature sensing, allowing the device to monitor the temperature and adjust charging accordingly.

  9. Does the BQ24100RHLRG4 have built-in thermal protection?
  10. Can the BQ24100RHLRG4 operate in sleep mode?
  11. What are some common applications of the BQ24100RHLRG4?

Product Attributes

Battery Chemistry:Lithium Ion/Polymer
Number of Cells:1
Current - Charging:Constant - Programmable
Programmable Features:Current, Timer
Fault Protection:Over Temperature, Over Voltage
Charge Current - Max:2A
Battery Pack Voltage:4.2V
Voltage - Supply (Max):16V
Interface:- 
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:20-VFQFN Exposed Pad
Supplier Device Package:20-VQFN (3.5x4.5)
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Similar Products

Part Number BQ24100RHLRG4 BQ24103RHLRG4 BQ24105RHLRG4 BQ24120RHLRG4 BQ24108RHLRG4
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Discontinued at Digi-Key Discontinued at Digi-Key Discontinued at Digi-Key Discontinued at Digi-Key Discontinued at Digi-Key
Battery Chemistry Lithium Ion/Polymer Lithium Ion/Polymer Multi-Chemistry Lithium Ion/Polymer Lithium Ion/Polymer
Number of Cells 1 1 ~ 2 1 ~ 3 1 1
Current - Charging Constant - Programmable Constant - Programmable Constant - Programmable Constant - Programmable Constant - Programmable
Programmable Features Current, Timer Current, Timer Current, Timer Current, Timer Current, Timer
Fault Protection Over Temperature, Over Voltage Over Temperature, Over Voltage Over Temperature, Over Voltage Over Temperature Over Temperature, Over Voltage
Charge Current - Max 2A 2A 2A 2A 2A
Battery Pack Voltage 4.2V 8.4V 15.5V 4.2V 4.2V
Voltage - Supply (Max) 16V 16V 16V 16V 16V
Interface - - - - -
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 20-VFQFN Exposed Pad 20-VFQFN Exposed Pad 20-VFQFN Exposed Pad 20-VFQFN Exposed Pad 20-VFQFN Exposed Pad
Supplier Device Package 20-VQFN (3.5x4.5) 20-VQFN (3.5x4.5) 20-VQFN (3.5x4.5) 20-VQFN (3.5x4.5) 20-VQFN (3.5x4.5)

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