Battery over-voltage protection(Min/Max)(V) : 3.85 and 4.65
Adjustable Threshold:
NO
Analog IC - Other Type:
BATTERY PROTECTOR
Input Voltage-Max:
25 V
JESD-30 Code:
R-PDSO-N8
JESD-609 Code:
e4
Length:
4 mm
Moisture Sensitivity Level:
1
Number of Channels:
5
Number of Functions:
1
Number of Terminals:
8
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Package Body Material:
PLASTIC/EPOXY
Package Code:
HVSON
Package Equivalence Code:
SOLCC8,.17,25
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
0.8 mm
Supply Current-Max (Isup):
0.002 mA
Supply Voltage-Max (Vsup):
25 V
Supply Voltage-Min (Vsup):
3 V
Supply Voltage-Nom (Vsup):
18 V
Surface Mount:
YES
Temperature Grade:
INDUSTRIAL
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
NO LEAD
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Threshold Voltage-Nom:
+4.3V
Time@Peak Reflow Temperature-Max (s):
30
Width:
3 mm
BQ771818DPJR 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 and ground planes separate, using a solid ground plane, and minimizing trace lengths and widths to reduce EMI and noise.
To ensure accurate battery monitoring and charging, it's crucial to follow the recommended calibration procedure, use a high-precision voltage reference, and consider the effects of temperature and aging on the battery. Additionally, implement a robust charging algorithm that takes into account the battery's chemistry, capacity, and health.
The internal voltage regulator has a limited current capability and may not be suitable for high-current applications. It's essential to consider the power requirements of the system and ensure that the internal regulator can provide the necessary current. In high-current applications, an external regulator may be necessary.
The POR and BOR features are designed to ensure the device powers up correctly and recovers from brown-out conditions. To handle these features, ensure that the power supply is stable and within the recommended voltage range, and implement a robust power-up sequence that takes into account the device's reset timing and voltage thresholds.
The BQ771818DPJR has a maximum junction temperature of 150°C. To ensure reliable operation, it's essential to consider the thermal design of the system, including the PCB layout, component placement, and heat sinking. Ensure that the device is operated within the recommended temperature range and that adequate cooling is provided.
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BQ771818DPJR 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.
