ISL6117

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
1s Response Time to Dead Short
Pb-Free Packages Available
Tape & Reel Packing with '-T' Part Number Suffix




Application

Power Distribution Control
Hot Plug Components and Circuitry




Pinout






Specifications

V_DD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +16V
GATE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to V DD+8V
ISEN, PGOOD, PWRON, CTIM, ISET. . . . . . ....... -0.3V to V_DD+ 0.3V
ESD Classification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5kV
Operating Conditions
V_DD Supply Voltage Range. . . . . . . . . . . . . . . . . . . . . +12V ±15%
Temperature Range (T_A ) . . . . . . . . . . . . . . . . . . . . . 0°C to 85°C





Description

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 resistors; RISET sets the CR Vth and the other is a low 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 20A 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.