 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
ISL6144IVZA Datasheet(PDF) 10 Page - Intersil Corporation |
|
||||||||||||||||||||||||||||||
ISL6144IVZA Datasheet(HTML) 10 Page - Intersil Corporation |
|
|
10 / 29 page  10 FN9131.3 February 15, 2007 VOS(HS) is the voltage offset of HS Comparator. The duration of the reverse current pulse is a few hundred nanoseconds and is normally kept well below current rating of the ORing MOSFET. Reducing the value of VTH(HS) results in lower reverse current amplitude and reduces transients on the common bus output voltage. HVREF and COMP Capacitor Values HVREF CAPACITOR (C1) this capacitor is necessary to stabilize the HVREF(VZ) supply and a value of 150nF is sufficient. Increasing this value will result in gate turn-on time increase. COMP CAPACITOR (C2) Placed between VOUT and COMP pins to provide filtering and decoupling. A 10nF capacitor is adequate for most cases. Protecting VIN and VOUT from High dv/dt Events In hot swap applications where the ISL6144 is directly connected to a prebiased bus (thus exposing either the VIN or VOUT pins directly to high dv/dt transients), these pins must be filtered to prevent catastrophic damage caused by the high dv/dt transients. A simple RC filter using a series resistor, < 100 Ω and the standard > 100nF decoupling capacitor to ground. This will give >1µs rise time on the VIN pin to protect it. A resistor of the same value may be added to the other (VOUT) pin to eliminate the small HS Vth error introduced by that series R, ~0.45V at 48V with 100 Ω resistor. Alternately the programmed HS Vth can be adjusted upward by that much as previously described. . Typical Performance Curves and Waveforms FIGURE 5. CHARGE PUMP VOLTAGE (VGQP) vs TEMPERATURE FIGURE 6. REG. AMP FORWARD REGULATION FIGURE 7. I BIAS CURRENT vs TEMPERATURE FIGURE 8. VSET VOLTAGE 7 8 9 10 11 12 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) 10V 48V 75V 12V 12 16 20 24 28 32 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) 48V 75V 10V AND 12V 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 -40 -20 0 20 40 60 80 100 120 48V 75V 12V 10V 12V TEMPERATURE (°C) 5.0 5.1 5.2 5.3 5.4 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (°C) 48V 75V 10V AND 12V ISL6144 |
Similar Part No. - ISL6144IVZA |
|
Similar Description - ISL6144IVZA |
|
|
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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
