The ADM1270 is a current-limiting controller that provides inrush current limiting and overcurrent protection for modular or battery-powered systems. It features supply voltage control, reverse supply protection, overcurrent protection, overvoltage protection, etc.
The ADM1270 is a current-limiting controller designed to provide inrush current limiting and overcurrent protection for modular or battery-powered systems. It controls supply voltages ranging from 4 V to 60 V via an external P-channel FET, preventing damage during circuit board insertion into a live backplane.
The device features adjustable current limits, foldback current limiting, and automatic retry or latch-off on current faults. It includes programmable timers for safe operating area (SOA), power-good and fault outputs, as well as analog undervoltage (UV) and overvoltage (OV) protection.
| Operating Voltage Range (VCC) | 4 V to 60 V |
|---|---|
| Quiescent Current (ICC) | 360 µA typical |
| Undervoltage Threshold (UV TH) | 1.0 V typical |
| Overvoltage Threshold (OV TH) | 1.0 V typical |
| Internal Regulated Voltage (V VCAP) | 3.6 V typical |
| Operating Temperature Range | -40°C to +125°C |
The device supports supply voltages from 4 V to 60 V.
The device is available in a 3 mm × 3 mm, 16-lead LFCSP and a 16-lead QSOP.