Description:The VRE102 precision Integrated Circuit provides ultra-stable ±10V output with ±1.0mV initial accuracy and a temperature coefficient as low as 1.09 ppm/°C over the full military temperature range. This improvement in accuracy is made possible by a unique, proprietary multipoint laser compensation technique. Significant improvements have been made in other performance parameters including initial accuracy, warm-up drift, line regulation, and long-term stability, making the VRE102 the most accurate and stable
Apex Microtechnology recommends a 4-layer PCB with a solid ground plane, and thermal vias under the device to dissipate heat. A minimum of 1 oz copper thickness is recommended. Additionally, a heat sink or thermal pad can be used to further improve thermal management.
To ensure reliable operation at high temperatures, Apex recommends derating the output current and voltage according to the thermal derating curve provided in the datasheet. Additionally, ensuring good thermal management, using a heat sink or thermal pad, and minimizing power dissipation can help maintain reliable operation.
Apex recommends using a minimum of 10uF ceramic capacitor at the input and output pins to ensure stable operation and minimize noise. The capacitor values can be increased depending on the specific application requirements.
Apex recommends using external overvoltage protection (OVP) and overcurrent protection (OCP) circuits to prevent damage to the device. Additionally, using a fuse or a current-limiting resistor can help protect the device from overcurrent conditions.
Apex recommends a soft-start sequence to prevent inrush currents and ensure reliable startup. A recommended sequence is to apply the input voltage, followed by the enable signal, and then the output voltage. During shutdown, the sequence should be reversed.
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VRE102C Overview
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