Electronic Components Datasheet Search |
|
UCC3912DPTRG4 Datasheet(PDF) 5 Page - Texas Instruments |
|
UCC3912DPTRG4 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 16 page UCC2912 UCC3912 PROGRAMMABLE HOT SWAP POWER MANAGER SLUS241D − MARCH 1994 - REVISED NOVEMBER 2003 5 www.ti.com pin description (continued) SHTDWN: When this pin is brought to a logic low, the IC is put into a sleep mode drawing typically less than 1 µA of ICC. The input threshold is hysteretic, allowing the user to program a startup delay with an external RC circuit. VIN: Input voltage to the UCC3912. The recommended voltage range is 3 V to 8 V. Both VIN pins should be connected together and to the power source. VOUT: Output voltage from the UCC3912. When switched the output voltage will be approximately VIN − (0.15 Ω × IOUT). Both VOUT pins should be connected together and to the load. APPLICATION INFORMATION UDG-99171 NOTE: For demonstration board schematic see Design Note DN-58 (TI Literature Number SLUA187). 6 7 8 9 11 10 B0 B1 B2 B3 IMAX 16 3 2 4 12 13 5 14 15 1 SHTDWN VOUT VIN FAULT CT GND HEAT SINK GND PINS RL COUT VOUT CSD RSD VIN CIN R1 LED D1 CT S1 S2 S3 S4 S5 DIP SWITCH S6 VIN VIN UCC2912 UCC3912 Figure 1. Evaluation Circuit protecting the UCC3912 from voltage transients The parasitic inductance associated with the power distribution can cause a voltage spike at VIN if the load current is suddenly interrupted by the UCC3912. It is important to limit the peak of this spike to less than 8 V to prevent damage to the UCC3912. This voltage spike can be minimized by: D Reducing the power distribution inductance (e.g., twist the positive and negative leads of the power supply feeding VIN, locate the power supply close to the UCC3912, use a PCB ground plane,...etc.). D Decoupling VIN with a capacitor, CIN (refer to Figure 1), located close to pins 2 and 3. This capacitor is typically less than 1 µF to limit the inrush current. D Clamping the voltage at VIN below 8 V with a zener diode, D1 (refer to Figure 1), located close to pins 2 and 3. |
Similar Part No. - UCC3912DPTRG4 |
|
Similar Description - UCC3912DPTRG4 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | 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 |