Electronic Components Datasheet Search |
|
UCC2921DTR Datasheet(PDF) 1 Page - Texas Instruments |
|
|
UCC2921DTR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 16 page 3/98 FEATURES • Precision Fault Threshold • Programmable: Average Power Limiting, Linear Current Control, Overcurrent Limit and Fault Time • Fault Output Indication Signal • Automatic Retry Mode or Latched Operation Mode • Shutdown Control • Undervoltage Lockout • 250µs Glitch Filter on the SDFLTCH pin • 8-Pin DIL and SOIC Latchable Negative Floating Hot Swap Power Manager BLOCK DIAGRAM UCC1921 UCC2921 UCC3921 UDG-99052 DESCRIPTION The UCC3921 family of negative floating hot swap power managers pro- vides complete power management, hot swap, and fault handling capa- bility. The IC is referenced to the negative input voltage and is powered through an external resistor connected to ground, which is essentially a current drive as opposed to the traditional voltage drive. The onboard 10V shunt regulator protects the IC from excess voltage and serves as a reference for programming the maximum allowable output sourcing cur- rent during a fault. All control and housekeeping functions are integrated and externally programmable. These include the fault current level, maxi- mum output sourcing current, maximum fault time, selection of Retry or Latched mode, soft start time, and average power limiting. In the event of a constant fault, the internal timer will limit the on time from less than 0.1% to a maximum of 3% duty cycle. The duty cycle modulation de- pends on the current into PL, which is a function of the voltage across the FET, thus limiting average power dissipation in the FET. The fault level is fixed at 50mV across the current sense amplifier to minimize total (continued) |
Similar Part No. - UCC2921DTR |
|
Similar Description - UCC2921DTR |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |