ISL6115A_14 Datasheet, PDF (1/10 Pages) Intersil Corporation – 12V Power Distribution Controllers

12V Power Distribution Controllers
ISL6115A
This fully featured hot swap power controller targets
+12V applications. The ISL6115A with its integrated
charge pump has a higher (6.5V vs 5V) gate drive
than its sister part the ISL6115 making this part an
immediate efficiency improvement replacement.
This IC features programmable overcurrent (OC)
detection, current regulation (CR) with time delay to
latch-off and soft-start.
The current regulation level is set by 2 external
resistors; R_ISET sets the CR Vth and the other is a
low ohmic sense resistor across, which the CR Vth is
developed. The CR duration is set by an external
capacitor on the CTIM pin, which is charged with a
20µA current once the CR Vth level is reached. The
IC then quickly pulls down the GATE output latching
off the pass FET.
Features
• HOT SWAP Single Power Distribution Control for
+12V
• Overcurrent Fault Isolation
• Programmable Current Regulation Level
• Programmable Current Regulation Time to
Latch-Off
• Rail-to-Rail Common Mode Input Voltage Range
• Enhanced Internal Charge Pump Drives N-Channel
MOSFET gate to 6.5V above IC bias.
• Undervoltage and Overcurrent Latch Indicators
• Adjustable Turn-On Ramp
• Protection During Turn-On
• Two Levels of Overcurrent Detection Provide Fast
Response to Varying Fault Conditions
• 1µs Response Time to Dead Short
• Pb-Free (RoHS Compliant)
Applications
• Power Distribution Control
• Hot Plug Components and Circuitry
Application Circuits - High Side Controller
+ ^LOAD
-
1
8
2 ^ISL6115A 7
3
6
4
5
PWRON
PGOOD
OC
+12V
+V SUPPLY TO BE CONTROLLED
April 23, 2010
FN6855.1
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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