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
BQ7790511PW Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the application note SLUA751, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and reliability of the BQ7790511PW.
The BQ7790511PW is a flexible gas gauge IC that can be configured for various battery chemistries using the TI-provided software tools, such as the Battery Management Studio (BMS) or the Fuel Gauge Designer. These tools allow you to customize the gauge's behavior, including the chemistry, capacity, and voltage ranges, to match your specific battery requirements.
The BQ7790511PW provides an accurate SOC measurement with an error of ±5% over the entire operating range, thanks to its advanced algorithms and compensation techniques. However, the actual accuracy may vary depending on the specific battery characteristics, operating conditions, and calibration process.
Yes, the BQ7790511PW can be used with battery packs that have multiple cells in parallel. However, you need to ensure that the total capacity of the parallel cells is within the IC's supported range (up to 256Ah) and that the cells are properly balanced to avoid any mismatch issues.
The BQ7790511PW has built-in compensation for battery self-discharge and leakage, which ensures accurate SOC measurement even when the battery is not in use. The IC uses a combination of voltage and current measurements to estimate the battery's capacity and adjust the SOC accordingly.
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BQ7790511PW Overview
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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.
