OVER VOLTAGE AND UNDER VOLTAGE THRESHOLD IS 4.25 AND 2.7V
Adjustable Threshold:
NO
Analog IC - Other Type:
BATTERY MONITOR/PROTECTOR
Input Voltage-Max:
25 V
JESD-30 Code:
R-PDSO-G20
JESD-609 Code:
e4
Length:
6.5 mm
Moisture Sensitivity Level:
2
Number of Channels:
5
Number of Functions:
1
Number of Terminals:
20
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Package Body Material:
PLASTIC/EPOXY
Package Code:
TSSOP
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
1.2 mm
Supply Voltage-Max (Vsup):
25 V
Supply Voltage-Min (Vsup):
3 V
Supply Voltage-Nom (Vsup):
20 V
Surface Mount:
YES
Temperature Grade:
INDUSTRIAL
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Threshold Voltage-Nom:
+4.25,2.7V
Time@Peak Reflow Temperature-Max (s):
30
Width:
4.4 mm
BQ7790505PWR Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good design practices, such as keeping the power traces short and wide, using a solid ground plane, and placing decoupling capacitors close to the device. Additionally, ensure that the PCB layout is symmetrical to minimize electromagnetic interference (EMI).
The BQ7790505PWR is designed to work with various battery chemistries, including lithium-ion, lead-acid, and nickel-based batteries. To configure the device for a specific battery chemistry, you need to adjust the voltage and current settings using the I2C interface. Refer to the datasheet for specific register settings and calculations for your chosen battery chemistry.
The BQ7790505PWR fuel gauge has an accuracy of ±1% over the entire operating range. However, temperature and aging can affect the accuracy. The device has built-in temperature compensation, but it's essential to calibrate the fuel gauge during production to account for individual device variations. Additionally, the fuel gauge accuracy may degrade over time due to battery aging, so it's recommended to implement periodic calibration and compensation mechanisms.
The BQ7790505PWR has a power-on reset (POR) and brown-out reset (BOR) feature to ensure the device operates within a valid voltage range. The POR is triggered when the supply voltage rises above the POR threshold, and the BOR is triggered when the supply voltage falls below the BOR threshold. To handle these features, ensure that your system design includes a suitable power-up sequence and voltage monitoring mechanism to prevent unwanted resets.
The BQ7790505PWR is rated for operation up to 85°C, but high temperatures can affect the device's accuracy and reliability. It's essential to consider the temperature coefficient of the device and the battery when designing your system. Additionally, ensure that your system design includes adequate thermal management and cooling mechanisms to prevent overheating.
Trust Checks
This model has been provided by community users.
Community Provided
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
BQ7790505PWR Overview
Use the download button to access the BQ7790505PWR schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like BQ779,
or try a keyword search, such as Power Management Circuits
About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
