Description:High Current Capability: IC = 15 A; Excellent Gain Linearity for low THD; High Power Dissipation : 130 watts; Complement to 2SA1962/FJA4213; High Frequency : 30 MHz; High Voltage : VCEO = 250 V; Thermal and electrical Spice models are available; Wide S.O.A for reliable operation
A good PCB layout for optimal thermal performance involves placing thermal vias under the device, using a solid ground plane, and keeping the thermal path as short as possible. It's also recommended to use a thermal pad on the bottom of the device and to connect it to a thermal plane or a heat sink.
To ensure proper biasing, make sure to follow the recommended voltage and current ratings in the datasheet. The device requires a minimum of 2.5V and a maximum of 5.5V for VCC, and the input voltage should be within the specified range. Additionally, ensure that the input and output capacitors are properly sized and placed close to the device.
The recommended input capacitor value is 1uF to 10uF, and the recommended output capacitor value is 1uF to 22uF. It's recommended to use X5R or X7R ceramic capacitors for both input and output capacitors due to their low ESR and high ripple current capability.
The device requires a power-on reset (POR) circuit to ensure proper startup. The POR circuit should be designed to provide a clean power-up sequence, and the device should be powered up in the following order: VCC, then VIN. The device also has an internal soft-start circuit that helps to reduce inrush current during startup.
The device has an undervoltage lockout (UVLO) feature that disables the device when the input voltage falls below 2.2V. The device also has an overvoltage protection (OVP) feature that limits the output voltage to 5.5V. In both cases, the device will automatically recover once the input voltage returns to a safe operating range.
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FJA4313OTU Overview
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