Internal switches are included — no external MOSFET needed. The controller handles the turn-on ramp, fault detection, and latching. The fault timeout and latched fault behaviour means that after a sustained overcurrent event, the channel shuts off and stays off until the input is cycled or the fault is cleared, which protects the USB host from a shorted peripheral.

ISL61852ACRZ Hot Swap Controller, 2.3V-5.5V, 600mA, 8-DFN
Renesas ISL61852ACRZ Hot Swap Controller, USB applications, 2.3V ~ 5.5V supply, 600mA output per channel, 2 channels, internal switches, fault timeout, UVLO, 8-VDFN exposed pad, surface mount, 0°C ~ 70°C.
Specifications
| Parameter | Value |
|---|---|
| Type | Hot Swap Controller |
| Mounting | Surface Mount |
| Supply voltage | 2.3V ~ 5.5V |
| Current - supply | 50 µA |
| Output current | 600mA |
| Operating temperature | 0°C ~ 70°C |
| Package | Tube |
| Features | Fault Timeout, Latched Fault, Thermal Limit, Turn On Voltage, UVLO |
| Applications | USB |
| Case | 8-VDFN Exposed Pad |
| Internal switch | Yes |
| Channels | 2 |
Product details
Frequently asked questions
Is ISL61852ACRZ active or obsolete?
Active. Renesas lists the product status as Active with ROHS3 compliance. No discontinuation or last-time-buy has been announced.
Does ISL61852ACRZ have internal switches?
Yes, it integrates two internal power switches rated for 600mA each, so no external MOSFETs are needed for the hot swap function.
What is ISL61852ACRZ's listed type on this component line?
Hot Swap Controller, specifically designed for USB applications with inrush limiting, overcurrent protection, and UVLO.