Parameters |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
28-VFQFN Exposed Pad |
Number of Pins |
28 |
Operating Temperature |
-40°C~125°C TJ |
Packaging |
Tape & Reel (TR) |
JESD-609 Code |
e4 |
Pbfree Code |
yes |
Part Status |
Obsolete |
Moisture Sensitivity Level (MSL) |
2 (1 Year) |
Number of Terminations |
28 |
ECCN Code |
EAR99 |
Terminal Finish |
Nickel/Palladium/Gold (Ni/Pd/Au) |
HTS Code |
8542.39.00.01 |
Subcategory |
Power Management Circuits |
Terminal Position |
QUAD |
Peak Reflow Temperature (Cel) |
260 |
Number of Functions |
1 |
Supply Voltage |
20V |
Terminal Pitch |
0.5mm |
Base Part Number |
BQ24742 |
Pin Count |
28 |
Output Voltage |
18.048V |
Number of Channels |
1 |
Max Supply Voltage |
24V |
Min Supply Voltage |
9V |
Analog IC - Other Type |
POWER SUPPLY SUPPORT CIRCUIT |
Output Current |
10A |
Adjustable Threshold |
YES |
Fault Protection |
Over Current, Over Temperature, Over Voltage, Short Circuit |
Battery Chemistry |
Lithium Ion/Polymer |
Number of Cells |
2 ~ 4 |
Switching Frequency |
800kHz |
Current - Charging |
Constant - Programmable |
Battery Pack Voltage |
18.048V Max |
Height Seated (Max) |
1mm |
Length |
5mm |
Width |
5mm |
Radiation Hardening |
No |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
BQ24742RHDR Overview
There is a package for Tape & Reel (TR) in which it can be found.The 28-VFQFN Exposed Pad package includes it as a convenience.In this case, the device is mounted in the way of Surface Mount.Keeping the temperature at -40°C~125°C TJ will ensure reliable performance.Using an analog IC of type POWER SUPPLY SUPPORT CIRCUIT, this device is able to communicate with the outside world.In order to charge the device, it needs to receive Constant - Programmable current.Based on the base part number BQ24742, it is possible to find related parts for this device.28 terminations are present.It is 18.048V Max for the battery pack.This board has 28 pins, making it very simple to construct.In order for the product to function as intended, there are 28 pins that must be connected.In total, this application supports 1 channels.Battery voltage should be 20V.It is capable of withstanding a 24V supply voltage.When the output voltage is 18.048V, high efficiency is possible.During operation, 10A represents the output current.As far as this device is concerned, it belongs to the subcategory Power Management Circuits.It is capable of functioning at a voltage as low as possible, for example 9V voltage for this circuit is used.A mounting requires that it align itself with Surface Mount.As far as switching frequency is concerned, the part runs at 800kHz.
BQ24742RHDR Features
Battery pack voltage of 18.048V Max
1 channels
Power Management Circuits subcategory
Switching frequency of 800kHz
28-VFQFN Exposed Pad package
BQ24742RHDR Applications
There are a lot of Texas Instruments BQ24742RHDR Battery Chargers ICs applications.
- Embedded automotive applications
- Ruggedized notebooks/tablet computers
- Pallet jacks
- Wearables
- Battery backup applications
- Modern LA
- Home appliances
- Military equipment
- Automotive battery charger circuits
- Personnel carriers