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Power Distribution Controllers

ISL6115, ISL6116, ISL6117,

ISL6120

This family of fully featured hot swap power controllers

targets applications in the +2.5V to +12V range. The

ISL6115 is for +12V control, the ISL6116 for +5V, the

ISL6117 for +3.3V and the ISL6120 for +2.5V control

applications. Each has a hard wired undervoltage (UV)

monitoring and reporting threshold level approximately

80% of the aforementioned voltage.

The ISL6115 has an integrated charge pump allowing

control of up to +16V rails using an external N-Channel

MOSFET whereas the other devices utilize the +12V

bias voltage to fully enhance the N-Channel pass FET.

All ICs feature 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

ohmic sense element 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. If the

voltage on the CTIM capacitor reaches 1.9V the IC then

quickly pulls down the GATE output latching off the

pass FET.

This family although designed for high side switch

control the ISL6116, ISL6117, ISL6120 can also be

used in a low side configuration for control of much

higher voltage potentials.

Features

• HOT SWAP Single Power Distribution Control

(ISL6115 for +12V, ISL6116 for +5V, ISL6117 for

+3.3V and ISL6120 for +2.5V)

• Overcurrent Fault Isolation

• Programmable Current Regulation Level

• Programmable Current Regulation Time to

Latch-Off

• Rail-to-Rail Common Mode Input Voltage Range

(ISL6115)

• Internal Charge Pump Allows the Use of N-Channel

MOSFET for +12V Control (ISL6115)

• 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 Available (RoHS Compliant)

Applications

• Power Distribution Control

• Hot Plug Components and Circuit

Application Circuits- High Side

Controller

Application Two - Low Side

Controller

+12V

-

+

PWRON

LOAD

PGOOD

OC

1

2

3

4

8

7

6

5

ISL6115

+V SUPPLY TO BE CONTROLLED

ISL6116

ISL6117

ISL6120

LOAD

12V REG

+VBUS

OC

PWRON

ISL6116

ISL6117

ISL6120

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

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All other trademarks mentioned are the property of their respective owners.

April 29, 2010

FN9100.7