UCC3957M-2 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC3957M-2 is a lithium-ion battery protection IC from Texas Instruments supporting selectable 3 or 4-cell pack configurations with overcurrent, overvoltage, and undervoltage protection for up to 4 cells. It features cell balancing and is housed in a 16-pin SSOP package for compact battery management system designs. Available from $1.20 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- UCC3957M-2 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -20.0°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Selectable 3 or 4-cell operation in a single device reduces SKU complexity for multi-cell lithium-ion battery pack designs
- Integrated overcurrent protection with programmable thresholds safeguards battery packs from damage during short-circuit or high-load events
- Compact 16-pin SSOP package enables space-efficient battery management system integration in portable and industrial devices
Applications
The UCC3957M-2 is used in multi-cell lithium-ion battery pack protection circuits for laptops, power tools, electric bicycles, and portable medical devices where reliable overvoltage, undervoltage, and overcurrent protection is critical. It is also suitable for industrial energy storage systems and backup power supplies requiring flexible 3 or 4-cell configuration to accommodate different pack designs within a single PCB layout.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | SELECTABLE THREE OR FOUR CELL OPERATION, OVERCURRENT PROTECTION |
| Adjustable Threshold | NO |
| Analog IC - Other Type | BATTERY PROTECTOR |
| JESD-30 Code | R-PDSO-G16 |
| Number of Channels | 4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.04mA |
| Supply Voltage-Max (Vsup) | 20V |
| Supply Voltage-Min (Vsup) | 6.5V |
| Supply Voltage-Nom (Vsup) | 16V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | OTHER |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.635mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC3957M-2:
Texas Instruments Fixed, 4 Channel, BICMOS, PDSO16
Frequently Asked Questions
How many lithium-ion cells can the UCC3957M-2 protect?
The UCC3957M-2 supports selectable operation for either 3-cell or 4-cell lithium-ion battery packs, providing flexibility to use one device for different pack configurations, reducing inventory and simplifying multi-product battery management system designs.
What protection features does the UCC3957M-2 provide?
The UCC3957M-2 provides overcurrent protection, overvoltage protection, and undervoltage protection for each individual cell in the stack, ensuring the battery pack is safeguarded against common failure modes that could damage cells or create safety hazards during charging and discharging.
What package is the UCC3957M-2 available in?
The UCC3957M-2 is available in a 16-pin SSOP (Shrink Small Outline Package) with 0.25-inch pitch, which provides a small PCB footprint suitable for compact battery management circuit integration in portable consumer and industrial devices.
Is the UCC3957M-2 RoHS compliant?
The UCC3957M-2 is a legacy part that may not carry a RoHS-compliant (Pb-free) designation in all package versions. Designers requiring RoHS compliance should verify the specific part number variant and check Texas Instruments documentation for environmental compliance details.
What types of devices use the UCC3957M-2?
The UCC3957M-2 is used in laptop battery packs, power tool batteries, e-bike battery management systems, portable medical instruments, and industrial backup power units, where multi-cell lithium-ion packs require integrated protection against electrical faults.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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