UCC3921DG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC3921DG4 is a single-channel negative voltage hot swap controller by Texas Instruments in an 8-pin SOIC package. Key specs: adjustable threshold, negative voltage operation, and single-channel control. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- UCC3921DG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Negative voltage hot swap control enables safe board insertion and removal in -48V telecom and datacom systems
- Adjustable threshold allows system designers to set custom current limits and undervoltage lockout levels
- Single-channel design in a compact 8-pin SOIC package simplifies PCB layout for space-constrained power management circuits
- RoHS-compliant Pb-free construction per JESD-609 e4 for use in environmentally regulated applications
Applications
The UCC3921DG4 hot swap controller is specifically designed for negative supply voltage environments such as -48V telecom backplane systems, where safe hot insertion and removal of circuit boards without power interruption is required. It is also used in industrial and datacom equipment requiring controlled inrush current management and overcurrent protection during board plug-in events.
Specifications
| YTEOL | 0 |
| Adjustable Threshold | YES |
| Analog IC - Other Type | HOT SWAP CONTROLLER |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 2mA |
| Supply Voltage-Max (Vsup) | 10V |
| Supply Voltage-Min (Vsup) | 9V |
| Supply Voltage-Nom (Vsup) | 9.5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC3921DG4:
Texas Instruments Adjustable, 1 Channel, +2.45V, BICMOS, PDSO8
Frequently Asked Questions
What type of voltage does the UCC3921DG4 control?
The UCC3921DG4 is designed for negative voltage hot swap applications, typically used in -48V telecom and datacom backplane systems where boards must be safely inserted or removed while the system remains powered.
Does the UCC3921DG4 have an adjustable threshold?
Yes, the UCC3921DG4 features an adjustable threshold, allowing designers to configure the overcurrent limit and undervoltage lockout level to match the specific requirements of their power supply and load circuit.
How many channels does the UCC3921DG4 support?
The UCC3921DG4 is a single-channel hot swap controller, managing one power path per device. Multiple devices can be used in parallel or in sequence to manage multiple rails in complex board power distribution systems.
What package is the UCC3921DG4 available in?
The UCC3921DG4 is housed in an 8-pin SOIC package with 0.25-inch body width (JESD-30 code R-PDSO-G8), providing a standard through-reflow-compatible footprint for easy PCB assembly.
What are typical applications for the UCC3921DG4?
Typical applications include -48V telecom line cards, server backplane hot swap management, datacom equipment power protection, and industrial control systems requiring safe board-level insertion and inrush current limiting.
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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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