The RTQ1961 is an eFuse that integrates several power components to provide high-current and high-voltage circuit protection in a compact form factor. With a simple application circuit, it protects against overloads, short-circuit faults, excessive inrush current and input overvoltage.
Start-up inrush current can be adjusted with a single external capacitor, and the active current limit during start-up with internal timer protects against start into short circuit. Steady state overcurrent protection with blanking timer and the fast overcurrent disconnect ensures robust protection while allowing transient overloads to pass through without disruption. Steady state overcurrent protection can be adjusted with a single resistor on the IMON pin.
The RTQ1961 provides fast and accurate current monitoring (IMON/ILIM) that allows for real-time power management (such as PSYS and PROCHOT) for optimized system performance MOSFET health monitoring and reporting provides predictive maintenance.
Characterized to operate over a junction temperature range of -40°C to 125°C and available in 5mm ×6mm package, the RTQ1961 is well suited for enterprise applications.
<div class="spec-list">
<ul class="lv1">
<li>10A Output Current Capability</li>
<li>9V to 80V Input Operating Range
<ul class="lv2">
<li>100V Absolute Maximum Input Voltage</li>
<li>-5V Input Voltage Tolerance</li>
</ul>
</li>
<li>3% Accurate Output Current Monitor with High Bandwidth (1MHz)</li>
<li>Robust Overcurrent Protection
<ul class="lv2">
<li>Startup Active Current Limit with Internal Timer</li>
<li>Steady-State Overcurrent Protection (OCP) with Adjustable Blanking Timer</li>
<li>Fast Overcurrent Trip for Short Circuit and Severe Overload Conditions</li>
</ul>
</li>
<li>Adjustable Overvoltage and Undervoltage Protection</li>
<li>MOSFET Health Detection and Warning</li>
<li>Over-Temperature Protection (OTP) with Analog Temperature Output</li>
<li>Fault and Power Good Outputs</li>
<li>-40°C < T<sub>J</sub> < 125°C Operation</li>
<li>Small 5mm × 6mm LQFN Package</li>
</ul>
</div>
<div class="spec-list">
<ul class="lv1">
<li>Datacenter Servers, Switches, and Routers</li>
<li>Cooling Fan Boards / Fan Trays</li>
<li>GPU / xPU Add-in Cards</li>
<li>Power Distribution Boards</li>
<li>Industrial and Humanoid Robots</li>
</ul>
</div>