RENESAS ISL6115CBZA

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 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. The members of this IC family are single power supply distribution controllers for generic hot swap applications across the +2.5V to +12V supply range. The ISL6115 is targeted for +12V switching applications whereas the ISL6116 is targeted for +5V, the ISL6117 for +3.3V and the ISL6120 for +2.5V applications. Each IC has a hardwired undervoltage (UV) threshold level approximately 17% lower than the stated voltages. These ICs feature a highly accurate programmable current regulation (CR) level with programmable time delay to latch-off, and programmable soft-start turn-on ramp all set with a minimum of external passive components. The ICs also include severe OC protection that immediately shuts down the MOSFET switch should a rapid load current transient such as with a dead short cause the CR Vth to exceed the programmed level by 150mV. Additionally, the ICs have a UV indicator and an OC latch indicator. The functionality of the PGOOD feature is enabled once the IC is biased, monitoring and reporting any UV condition on the ISEN pin. Upon initial power-up, the IC can either isolate the voltage supply from the load by holding the external N-Channel MOSFET switch off or apply the supply r

• 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)

• Power Distribution Control
• Hot Plug Components and Circuit