RUNIC RS2601YTDE8

RS2601 is an IC optimized to protect low-voltage systems from damage caused by abnormally high input voltages (up to 40V). The device monitors input voltage, battery voltage, and charging current to ensure all three parameters operate within normal ranges. When the input voltage exceeds a specified overvoltage protection threshold, the chip turns off the power MOSFET within 1μs to cut off power and prevent damage. RS2601 can also provide voltage output when no battery is present. Current through the power MOSFET is also limited to prevent the battery from being charged at excessive current. The current limit is programmable via an external resistor between ILIM and GND. The overcurrent protection function includes a 4-bit binary counter that accumulates during overcurrent events. When the total count reaches 16 consecutive times, the power MOSFET is permanently shut down unless the input power is cycled. The device also monitors battery voltage; once the battery voltage exceeds 4.35V for more than 150μs glitch duration, RS2601 will turn off the MOSFET. When battery overvoltage events occur 16 consecutive times, the internal logic control permanently shuts down the power MOSFET.

• Fully integrated protection features
• Programmable overcurrent protection
• Input overvoltage protection
• Battery overvoltage protection
• High input voltage withstand up to 40V
• Overvoltage shutdown time less than 1μs
• High-accuracy protection thresholds
• Overtemperature protection
• High immunity to false triggering under transient conditions
• Warning indicator output
• Enable input
• RoHS compliant and halogen-free
• Lead-free package: DFN2X2-8

• Cellular phones
• Digital cameras
• PDAs and smartphones
• Portable instruments