| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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4,202 pcs
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4202 pcs | On Request | 1 | On Request | On Request | 13+ | On Request | On Request |
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The UCC3921DTR/81143 from Texas Instruments is a versatile hot swap power manager IC. It provides comprehensive power management, hot swap, and fault handling capabilities for negative voltage systems.
This device features a precision fault threshold and is programmable for average power limiting, linear current control, overcurrent limit, and fault time. It includes essential features like undervoltage lockout (UVLO), a fault output indication signal, and supports automatic retry or latched operation modes. The integrated 250μs glitch filter on the SDFLTCH pin enhances signal integrity.
Designed for general-purpose applications, the UCC3921DTR/81143 operates at -48V and handles 1mA of current. It is specified for an operating temperature range of 0°C to 70°C. The IC is housed in an 8-SOIC package, suitable for surface mount applications.
Key electrical characteristics include a typical overcurrent threshold of 50mV and a typical regulator voltage of 9.5V at 2mA. The UVLO off voltage is typically 8V, and the CT fault threshold is 2.45V.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.31 | $1.31 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UCC3921DTR/81143 operates at -48V.
The operating temperature range is 0°C to 70°C.
The UCC3921DTR/81143 is available in an 8-SOIC package.
The UCC3921DTR/81143 is RoHS3 Compliant.
Programmable features include Auto Retry, Circuit Breaker, Current Limit, Fault Timeout, and Latched Fault.
The typical overcurrent threshold is 50mV.
Yes, the UCC3921DTR/81143 has undervoltage lockout (UVLO).