ISL6112IRZA Intersil, ISL6112IRZA Datasheet - Page 13

• Manufacturer Part Number: ISL6112IRZA
• Description: IC PWR CNTRLR DUAL SLT 48-QFN
• Manufacturer: Intersil
• Type: Hot-Swap Controllerr

Specifications of ISL6112IRZA

• Applications: General Purpose, PCI Express
• Internal Switch(s): No
• Voltage - Supply: 3.3V, 12V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Current Regulation (CR) Function
The ISL6112 provides a current regulation and limiting
function that protects the input voltage supplies against
excessive loads, including short circuits. When the current
from any of a slots MAIN outputs exceeds the current limit
threshold (I
t
MAIN supplies are shut off, as shown in Figures 8 and 9.
Should the load current cause a MAIN outputs V
exceed V
no t
FILTER
FIGURE 6. 3VMAIN START-UP R
FIGURE 7. 12VMAIN START-UP R
C
FILTER
FILTER
, the isolation protection is tripped and both related
THFAST
RESPONDING TO UNSHOWN MAIN SUPPLY
LIM
delay, as shown in Figures 10 and 11.
C
LOAD
= 50mV/R
, the outputs are immediately shut off with
= 470µF
SENSE
13
) for a duration greater than
LOAD
LOAD
= 2Ω, C
= 10Ω,
C
C
C
GD
GATE
GS
= 9800pF
LOAD
= 2200pF
= 2200pF
SENSE
C
3V
C
12I
3V
3I
FILTER
FILTER
12V
12V
OUT
= 470µF
GATE
OUT
OUT
OUT
GATE
to
ISL6112
.
C
12V
FILTER
12V
OUT
OUT
FIGURE 8. 12VMAIN CR AND SHUT-DOWN
FIGURE 9. 3VMAIN CR AND SHUT-DOWN
FIGURE 10. 12VMAIN WOC SHUT-DOWN
12I
OUT
3I
3V
OUT
OUT
12I
OUT
12V
September 28, 2007
C
12V
FILTER
GATE
C
3V
FILTER
GATE
GATE
FN6456.0