4.5V to 60V, 250mA, Current-Limiter with Reverse Protection

The ADPL86610/ADPL86611/ADPL86612 are a series of adjustable overvoltage and overcurrent protection devices that are ideal to protect systems against positive and negative input voltage faults up to +60V and -65V, and feature low 1.42Ω (typ) RON FETs.

The adjustable input overvoltage protection range is 5.5V to 60V, and the adjustable input undervoltage protection range is 4.5V to 59V. The input Overvoltage-lockout (OVLO) and Undervoltage-lockout (UVLO) thresholds are set using external resistors. Additionally, the devices offer an internal input undervoltage threshold at 4.2V (typ).

The devices feature programmable current-limit protection up to 250mA; hence, controlling the inrush current at startup while charging large capacitors at the output. The current-limit threshold is programmed by connecting a resistor from the SETI pin to GND. When the device current reaches the programmed threshold, the device prevents further increases in current by modulating the Field-effect transistor (FET) resistance. The devices can be programmed to behave in three different ways under current-limit conditions: Autoretry, Continuous, or Latch-off modes. The voltage appearing on the SETI pin is proportional to the instantaneous current flowing through the device and is read by an Analog-to-digital converter (ADC).

ADPL86610 and ADPL86612 block current flowing in the reverse direction (i.e., from OUT to IN), whereas ADPL86611 allows current flow in the reverse direction. The devices feature thermal shutdown protection against excessive power dissipation.

The devices are available in a small, 10-pin (3mm x 3mm) TDFN-EP package. The devices operate over the -40°C to +125°C extended temperature range.

APPLICATIONS

* Sensor Systems

* Condition Monitoring

* Factory Sensors

* Process Instrumentation

* Weighing and Batching Systems

* Industrial Applications such as Programmable Logic Controller (PLC), Network-Control Modules, Battery-Operated Modules

* Robust Protection Reduces System Downtime

* Wide Input-Supply Range: +4.5V to +60V

* Hot Plug-in Tolerant without Transient VoltageSuppressor (TVS) up to 35V Input Supply

* Negative Input Tolerance to -65V

* Low RON 1.42Ω (typ)

* Reverse Current-Blocking Protection

* Thermal Overload Protection

* Extended -40°C to +125°C Temperature Range

* ADPL86610 Enables OV, UV, and Reverse-Voltage Protection

* ADPL86611 Enables OV and UV Protection

* ADPL86612 Enables Reverse-Voltage Protection