Description:The ISL62381, ISL62382, ISL62383, ISL62381C, ISL62382C and ISL62383C family of controllers generate supply voltages for battery-powered systems. These controllers include two pulse-width modulation (PWM) controllers, adjustable from 0. 6V to 5. 5V, and two linear regulators, LDO5 and LDO3, that generate a fixed 5V and an adjustable output respectively, and each can deliver up to 100mA. The ISL62383 and ISL62383C have the same outputs as the ISL62381, ISL62382, ISL62381C and ISL62382C but without LDO3 linear
The recommended PCB layout for optimal performance involves keeping the power traces short and wide, using a solid ground plane, and placing the input and output capacitors close to the IC. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
The selection of input and output capacitors depends on the specific requirements of your application. In general, it's recommended to use low-ESR capacitors with a high ripple current rating. The input capacitor should be able to handle the input voltage and current, while the output capacitor should be able to handle the output voltage and current. The datasheet provides guidelines for capacitor selection, but it's recommended to consult with a capacitor manufacturer for specific recommendations.
The maximum ambient temperature for reliable operation of the ISL62381HRTZ is 105°C. However, it's recommended to derate the device's performance at high temperatures to ensure reliable operation. The datasheet provides thermal derating curves to help with this.
The ISL62381HRTZ has built-in OVP and UVP features. To implement OVP, connect the OVP pin to a voltage source that is higher than the maximum input voltage. To implement UVP, connect the UVP pin to a voltage source that is lower than the minimum input voltage. The datasheet provides more detailed information on how to implement OVP and UVP.
The recommended input voltage range for the ISL62381HRTZ is 4.5V to 28V. However, the device can operate with input voltages as low as 3.3V and as high as 30V, but with reduced performance and efficiency.
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ISL62381HRTZ Overview
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