OVER VOLTAGE AND UNDER VOLTAGE THRESHOLD IS 4.2 AND 2.6V
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:
+4.2,2.6V
Time@Peak Reflow Temperature-Max (s):
30
Width:
4.4 mm
BQ7790500PW Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as keeping the power and ground planes separate, using a solid ground plane, and minimizing trace lengths and widths to reduce noise and EMI.
The BQ7790500PW supports various battery chemistries, including Li-ion, Li-polymer, and Lead-Acid. To configure the device for a specific chemistry, you need to adjust the voltage and current settings using the device's registers. Refer to the datasheet and application notes for specific configuration details.
The BQ7790500PW fuel gauge accuracy is typically ±1% over the entire operating range. Calibration is done using the device's internal calibration mechanism, which involves measuring the battery's capacity and internal resistance. You can also use external calibration methods, such as using a reference resistor or a calibration battery.
The BQ7790500PW has built-in over-discharge protection (ODP) features, including a programmable ODP threshold and hysteresis. To prevent battery damage, ensure that the ODP threshold is set correctly, and the device is configured to disconnect the load when the battery voltage falls below the threshold.
The BQ7790500PW is rated for operation from -40°C to 85°C. However, the device's accuracy and performance may degrade at extreme temperatures. Ensure that the device is operated within the recommended temperature range for optimal performance.
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BQ7790500PW 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.
