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 package to ensure efficient heat dissipation. A minimum of 1 oz copper thickness is recommended. Additionally, a thermal pad on the bottom of the package should be connected to a heat sink or a thermal management system.
To ensure stable and accurate output voltage, it's essential to follow the recommended input and output capacitor values, and to decouple the input voltage with a 10uF capacitor. Additionally, the output voltage should be filtered with a 10uF capacitor and a 1kΩ resistor in series to reduce noise and oscillations.
The VRE102CA can tolerate up to 100mV of input voltage ripple and noise. However, it's recommended to keep the input voltage ripple and noise below 50mV to ensure optimal performance and stability.
The VRE102CA has built-in overcurrent protection, but it's still recommended to add external protection circuitry, such as a fuse or a current-limiting resistor, to prevent damage from excessive current. Additionally, a short-circuit protection diode can be added to prevent reverse current flow.
The recommended startup sequence is to apply the input voltage first, followed by the enable signal. During shutdown, the enable signal should be turned off first, followed by the removal of the input voltage. This sequence helps prevent unwanted voltage transients and ensures a clean shutdown.
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VRE102CA Overview
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