Description:The ISL62392 controller generates supply voltage for battery-powered systems. It includes two pulse-width modulation (PWM) controllers, adjustable from 0. 6V to 5. 5V, and a linear regulator (LDO3) that generates a fixed 3. 3V and can deliver up to 100mA. The ISL62392 includes on-board power-up sequencing, a power-good (PGOOD) output, digital soft-start, and internal soft-stop output discharge that prevents negative voltages on shutdown. The patented R3 PWM control scheme provides a low jitter system with f
CHIP CARRIER, HEAT SINK/SLUG, VERY VERY THIN PROFILE
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
0.8 mm
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
28 kHz
Temperature Grade:
OTHER
Terminal Finish:
Pure Matte Tin (Sn) - annealed
Terminal Form:
NO LEAD
Terminal Pitch:
0.4 mm
Terminal Position:
QUAD
Time@Peak Reflow Temperature-Max (s):
30
Width:
4 mm
ISL62392HRTZ Frequently Asked Questions (FAQs)
A good PCB layout is crucial for the ISL62392HRTZ. Renesas recommends a 4-layer board with a solid ground plane, and to keep the input and output capacitors close to the IC. Additionally, it's essential to minimize the loop area of the high-current paths and to use wide traces for the power lines.
The selection of external components, such as inductors, capacitors, and resistors, depends on the specific application requirements. Renesas provides a component selection guide in the datasheet, and it's recommended to use components with low ESR, high ripple current, and high voltage ratings. Additionally, the component values should be chosen to ensure the desired output voltage, output current, and switching frequency.
The ISL62392HRTZ has a high-power density, and thermal management is critical to ensure reliable operation. Renesas recommends using a thermal pad on the bottom of the IC, and to design a heat sink or a thermal interface material to dissipate heat. The PCB should also be designed to minimize thermal resistance and to provide adequate airflow.
To troubleshoot issues with the ISL62392HRTZ, it's essential to follow a systematic approach. First, verify the input voltage, output voltage, and output current. Check the PCB layout and component values to ensure they meet the recommended specifications. Use an oscilloscope to measure the output voltage ripple, switching frequency, and current waveforms. If the issue persists, consult the datasheet and application notes for guidance, or contact Renesas technical support.
The ISL62392HRTZ is a high-frequency switching regulator, and EMI and EMC considerations are crucial to ensure compliance with regulatory standards. Renesas recommends using a shielded inductor, placing the IC and external components close together, and using a common-mode choke to reduce EMI. Additionally, the PCB should be designed to minimize radiation and to provide adequate shielding.
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Manufacturer Collaborated
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System Verified
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Sponsored
ISL62392HRTZ Overview
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