The SY5325 is an over voltage and over current protection IC with low on-resistance 125 mΩ. The SY5325 can monitor the input voltage value in real time,
and when the input voltage exceeds the over voltage protection threshold, it can quickly turn off the internal MOSFET within 50nS to protect the back end low-voltage system from abnormally high input voltage.
The MOSFET will be turn off in 20uS, if the load current exceeds the limit threshold. The SY5325 enters hiccup mode, until the over current condition removed.
The over current threshold is set by RILIM. When detecting that the temperature exceeds the over temperature threshold, the IC will turn off the internal MOSFET.
Input voltage range:3.0 V~30V
Low output on resister: RON=125mΩ (Typ.)
Input under voltage lockout protection: 2.85V
Over voltage protection: 6.1V, ±4% accuracy
Ultra fast OVP response time: 50nS (Typ.)
Over current protection: 1A, ±10% accuracy
Over temperature protection
Soft-start to restrain inrush current
Available in DFN-1x1-4L package
Low-power handheld devices
Smart IOT, Smart Band/Watch
TWS, AR/VR Device
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Address:19th Floor, Caixun Science and Technology Building, No. 3176, Keyuan South Road, Nanshan District, Shenzhen
SY5325