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BQ24257RGET

BQ24257RGET

BQ24257RGET

Texas Instruments

Constant - Programmable BQ24257 24-VFQFN Exposed Pad Tape & Reel (TR) 5V 2A 24 Terminals

SOT-23

BQ24257RGET Datasheet

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Specifications
Name Value
Type Parameter
Lifecycle Status NRND (Last Updated: 3 days ago)
Contact Plating Gold
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 24-VFQFN Exposed Pad
Number of Pins 24
Operating Temperature -40°C~85°C TA
Packaging Tape & Reel (TR)
JESD-609 Code e4
Pbfree Code yes
Part Status Not For New Designs
Moisture Sensitivity Level (MSL) 2 (1 Year)
Number of Terminations 24
ECCN Code EAR99
Terminal Position QUAD
Peak Reflow Temperature (Cel) 260
Number of Functions 1
Supply Voltage 5V
Terminal Pitch 0.5mm
Base Part Number BQ24257
Output Voltage 4.44V
Max Output Current 4A
Operating Supply Voltage 6.5V
Number of Channels 1
Interface I2C, USB
Max Supply Voltage 10.5V
Min Supply Voltage 4.35V
Analog IC - Other Type POWER SUPPLY MANAGEMENT CIRCUIT
Operating Supply Current 13mA
Output Current 2A
Adjustable Threshold YES
Max Output Voltage 4.2V
Supply Current-Max (Isup) 5mA
Nominal Input Voltage 18V
Threshold Voltage +3.35V
Fault Protection Over Temperature, Over Voltage
Battery Chemistry Multi-Chemistry
Number of Cells 1
Switching Frequency 3kHz
Programmable Features Timer
Current - Charging Constant - Programmable
Charge Current - Max 2A
Battery Pack Voltage 4.44V Max
Height 1mm
Length 4mm
Width 4mm
Thickness 880μm
REACH SVHC No SVHC
Radiation Hardening No
RoHS Status ROHS3 Compliant
Lead Free Lead Free
Pricing & Ordering
Quantity Unit Price Ext. Price
250 $2.74724 $686.81
500 $2.46510 $1232.55
1,250 $2.07900 $2.079
BQ24257RGET Product Details

BQ24257RGET Overview


You can find it in the Tape & Reel (TR) package.It is contained in a package named 24-VFQFN Exposed Pad.Mounting type Surface Mount matches the device.If you wish to ensure reliable performance, set the temperature to -40°C~85°C TA.In order to provide its functionality, this device uses an analog IC called POWER SUPPLY MANAGEMENT CIRCUIT.It is necessary to supply the device with Constant - Programmable current in order to charge it.There are related parts for this device under the base part number BQ24257.It contains 24 terminations, so that is how many there are.Batteries pack have 4.44V Max.In addition to Timer, a variety of programmable features are available.A maximum charging current of 2A is recommended.Product functionality is dependent on 24 pins.It appears that there are 1 channels available at this time.There is a possibility that it can be powered by a 5V battery.An input voltage that is equal to 10.5V can be applied to it without any problem.4.44V output voltages can result in high efficiency.In order to operate, an output current of 2A is used.It is capable of functioning at a voltage as low as possible, for example 4.35V voltage for this circuit is used.I'd like to emphasize that the mounting of the device is done in the same manner as Surface Mount.In most cases, the maximum supply voltage (Vsup) is set to 5mA.It appears that there is 13mA current flowing through the supply of the gadget at the moment.As a rule of thumb, the supply voltage needs to be set to 6.5V for optimum efficiency.This part has a switching frequency of 3kHz and operates with this frequency.It is important to note that the maximum output supply voltage for this operation must be set to 4.2V.A reduction in maximum output current to 4A occurs during operation.

BQ24257RGET Features


Battery pack voltage of 4.44V Max
1 channels
Switching frequency of 3kHz
24-VFQFN Exposed Pad package


BQ24257RGET Applications


There are a lot of Texas Instruments
BQ24257RGET Battery Chargers ICs applications.


  • Maintenance shops
  • Rental fleets
  • Truck dealers
  • Floor scrubber
  • Material handling
  • Man lift
  • Boat
  • Cellphones
  • Laptops
  • Tablets

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