Subscribe to EDOM TECH Newsletter
Monolithic Power Systems
MP62551 - Power Distribution Switch
MP62551
Precision Adjustable Current-Limited Power Distribution Switch
Description
MP62550/MP62551 Power Distribution Switch is designed for precision current limiting and provides up to 1.5A continuous output current. It offers programmable current limit between 60mA and 1.7A (typ) with ±10% accuracy by an external resistor. The switch includes an 88mΩ N-channel Power MOSFET and operates from 2.5V to 5.5V input voltage. The device has built-in protection for both over current and increased thermal stress. For over current, the device will limit the current by changing to a constant current mode. It will shutdown when its internal temperature reaches unsafe levels and recover once the device temperature reduces approx 10°C. It provides built-in soft-start which controls the rise and fall times of the output voltage to limit the initial inrush current and voltage surges. The reverse-voltage protection feature turns off the MOSFET to protect the device. The FLAG output will report a fail mode (low level) when over current or over temperature is encountered. FLAG will not change states when the input UVLO is triggered. The MP62550/MP62551 is available in space saving 6-pin TQFN 2x2mm package and TSOT23-6 package.
Features & Benefits
- Up to 1.5A Continuous Output Current
- ±10% Current-Limit Accuracy
- Adjustable Current-Limit, 60mA -1700mA (typ)
- Fast Over-current Response 2μs (typ)
- 2.5V to 5.5V Supply Range
- 88mΩ MOSFET (TQFN Package)
- 1.5μA Maximum Standby Supply Current
- Reverse Input-Output Voltage Protection
- Built-in Soft-Start
- Thermal-Shutdown Protection
- Automatic-on after Fault Removed
- Under-Voltage Lockout
- Deglitched Fault Report
- FLAG Will Not Change State at Input UVLO Transition
- Bidirectional Fault Deglitch Time
- Active Low & Active High Options
*MPS Authorized Distributor
