SELECTABLE THREE OR FOUR CELL OPERATION, OVERCURRENT PROTECTION
Adjustable Threshold:
NO
Analog IC - Other Type:
BATTERY PROTECTOR
JESD-30 Code:
R-PDSO-G16
JESD-609 Code:
e4
Length:
4.9 mm
Moisture Sensitivity Level:
2
Number of Channels:
4
Number of Functions:
1
Number of Terminals:
16
Operating Temperature-Max:
70 °C
Operating Temperature-Min:
-20 °C
Package Body Material:
PLASTIC/EPOXY
Package Code:
SSOP
Package Equivalence Code:
SSOP16,.25
Package Shape:
RECTANGULAR
Package Style:
SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.75 mm
Supply Current-Max (Isup):
0.04 mA
Supply Voltage-Max (Vsup):
20 V
Supply Voltage-Min (Vsup):
6.5 V
Supply Voltage-Nom (Vsup):
16 V
Surface Mount:
YES
Technology:
BICMOS
Temperature Grade:
OTHER
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
GULL WING
Terminal Pitch:
0.635 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
3.9 mm
UCC3957M-4 Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the application note SLUP133, which includes guidelines for component placement, trace routing, and thermal management to ensure optimal performance and minimize electromagnetic interference (EMI).
The input capacitor selection depends on the input voltage, output voltage, and output current requirements. A general guideline is to choose a capacitor with a voltage rating at least 1.5 times the maximum input voltage, and a capacitance value between 10uF to 100uF. Additionally, consider the capacitor's ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance) to ensure it can handle the high-frequency switching of the UCC3957M-4.
The UCC3957M-4 has an operating ambient temperature range of -40°C to 125°C. However, the device's performance and reliability may degrade at extreme temperatures. It's essential to consider the thermal management and heat dissipation in the system design to ensure the device operates within its recommended temperature range.
Yes, the UCC3957M-4 can be used in a synchronous rectification configuration. However, it requires additional external components, such as a synchronous rectifier FET and a gate driver, to control the rectifier FET. Texas Instruments provides application notes and design examples for synchronous rectification configurations using the UCC3957M-4.
To troubleshoot issues with the UCC3957M-4, start by verifying the PCB layout and component selection against the recommended guidelines. Check for proper decoupling, filtering, and thermal management. Use oscilloscopes and other diagnostic tools to identify the root cause of the issue. Texas Instruments also provides application notes and technical support resources to help troubleshoot and resolve issues with the UCC3957M-4.
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UCC3957M-4 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.
