MP5001

MP5001

NOT RECOMMENDED FOR NEW DESIGNS

5V, 1A- 5A Programmable Current Limit Switch

ALTERNATIVE PART

NRFND Datasheet

MP5001 continues to be in production for existing customers. Please consider this alternative for new designs:

MP5010S

5V, 1A- 5A Programmable Current Limit Switch

Features & Benefits

Wide 3.6V-to-18V Operating Input Range
Integrated 40mO Power FET
Enable/Fault Pin
Adjustable Slew Rate for Output Voltage
Adjustable Current Limit
Thermal Protection

… and many more!

Description

The MP5001 is a protection device designed to protect circuitry on the output (source) from transients on input (VCC). It also protects VCC from undesired shorts and transients coming from the source. At start up, inrush current is limited by limiting the slew rate at the source. The slew rate is controlled by a small capacitor at the dv/dt pin. The dv/dt pin has an internal circuit that allows the customer to float this pin (no connect) and still receives a 1.5ms ramp time at the source. The max load at the output (source) is current limited. This is accomplished by utilizing a sense FET topology. The magnitude of the current limit is controlled by an external resistor from the I-Limit pin to the Source pin. An internal charge pump drives the gate of the power device, allowing a very low on-resistance DMOS power FET of just 70mO. The source is protected from the VCC input being too low or too high. Under Voltage Lockout (UVLO) assures that VCC is above the minimum operating threshold, before the power device is turned on. If VCC goes above the high output threshold, the source voltage will be limited.