Allicdata Part #: | 296-12252-5-ND |
Manufacturer Part#: |
UCC2921N |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC PWR MGR HOTSWP NEG FLT 8-DIP |
More Detail: | Hot Swap Controller 1 Channel General Purpose 8-PD... |
DataSheet: | UCC2921N Datasheet/PDF |
Quantity: | 1000 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
1 +: | 0.00000 |
Specifications
Series: | -- |
Packaging: | Tube |
Lead Free Status / RoHS Status: | -- |
Part Status: | Obsolete |
Moisture Sensitivity Level (MSL): | -- |
Type: | Hot Swap Controller |
Number of Channels: | 1 |
Internal Switch(s): | No |
Applications: | General Purpose |
Features: | UVLO |
Programmable Features: | Auto Retry, Circuit Breaker, Current Limit, Fault Timeout, Latched Fault |
Voltage - Supply: | -48V |
Current - Output (Max): | -- |
Operating Temperature: | -40°C ~ 85°C |
Current - Supply: | 1mA |
Mounting Type: | Through Hole |
Package / Case: | 8-DIP (0.300", 7.62mm) |
Supplier Device Package: | 8-PDIP |
Feature Pins: | CT, IMAX, PL, SDFLTCH |
Base Part Number: | UCC2921 |
Description
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UCC2921N Application Field and Working Principle
UCC2921N is a hot swap controller designed by Texas Instruments. It is categorized as PMIC - Hot Swap Controllers. It’s designed to enable safe insertion and removal of a load into a live system.Application Field
UCC2921N is suitable for a variety of applications, such as automotive infotainment, industrial automation and control, large LCD and LED display backlighting, laptop, MEMS, intelligent power switches and motor drives.Main Features
UCC2921N is a single-channel hot swap controller. It is suitable for hot insertion into a live system and features a wide operating voltage range from 5V to 25V. It also has protection features such as active current source and sink architecture, building-in OVP and OCP protection, and adjustable dead-time for soft-start and current limiting.Functional Description
UCC2921N contains a power MOSFET, under voltage and over voltage comparators, an adjustable current limit circuit and a maximum duty cycle clock. The power FET can be either a single N-channel or P-channel MOSFET depending on the device package. It also contains programmable current limit and deadtime functions. The device is designed to limit in-rush current when hot-plugging a voltage source into a live system. It provides an adjustable current limit range from 0.7A to 4A and a soft start function controlled by an adjustable deadtime. The adjustable current limit can be set via an external resistor.Setup Procedure
The setup procedure for UCC2921N is simple. All the necessary parameters such as current limit and deadtime can be set via external resistors.First, place the device on a good thermal ground. Then set the current limit resistor (SET), deadtime resistor (DEADTIME) and slew rate resistor (SLEW). Finally, connect the power input and output to the desired components.Operation
When power is applied to the UCC2921N, the power FET is turned on and off at a rate determined by the external resistor connected to SET. This operation is similar to a PWM signal. In addition, the maximum duty cycle of the power FET can be regulated by the internal clock. The adjustable deadtime resistor (DEADTIME) will control the soft start time of the voltage source. When the voltage source is removed, the power FET is turned off and the system will remain protected.Conclusion
UCC2921N is an ideal solution for hot swap applications that require protection against over current, overvoltage and undervoltage. It’s designed to enable safe insertion and removal of loads into a live system while protecting against current and voltage surges. This device is suitable for a wide range of applications such as automotive infotainment, industrial automation and control, large LCD and LED display backlighting, laptop, MEMS, intelligent power switches and motor drives.The specific data is subject to PDF, and the above content is for reference
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