Description:The ISL6611A utilizes Intersil’s proprietary Phase Doubler scheme to modulate two-phase power trains with single PWM input. It doubles the number of phases that Intersil’s ISL63xx multiphase controllers can support. At the same time, the PWM line can be pulled high to disable the corresponding phase or higher phase(s) when the enable pin (EN_PH) is pulled low. This simplifies the phase shedding implementation. For layout simplicity and improving system performance, the device integrates two 5V drivers (ISL6
IT USES PROPRIETARY PHASE DOUBLER SCHEME FOR MODULATION
Analog IC - Other Type:
DUAL SWITCHING CONTROLLER
Control Mode:
CURRENT-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
5.5 V
Input Voltage-Min:
4.5 V
Input Voltage-Nom:
5 V
JESD-30 Code:
S-PQCC-N16
JESD-609 Code:
e3
Length:
4 mm
Moisture Sensitivity Level:
1
Number of Functions:
1
Number of Terminals:
16
Operating Temperature-Max:
70 °C
Package Body Material:
PLASTIC/EPOXY
Package Code:
HVQCCN
Package Shape:
SQUARE
Package Style:
CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
1 mm
Surface Mount:
YES
Switcher Configuration:
PHASE-SHIFT
Switching Frequency-Max:
1000 kHz
Temperature Grade:
COMMERCIAL
Terminal Finish:
MATTE TIN
Terminal Form:
NO LEAD
Terminal Pitch:
0.65 mm
Terminal Position:
QUAD
Time@Peak Reflow Temperature-Max (s):
30
Width:
4 mm
ISL6611ACRZ Frequently Asked Questions (FAQs)
The recommended PCB layout for the ISL6611ACRZ involves placing the input capacitors close to the VIN pin, using a solid ground plane, and keeping the high-current paths short and wide. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a separate ground plane.
The selection of external components for the ISL6611ACRZ depends on the specific application requirements, such as the input voltage, output voltage, and output current. Renesas provides a component selection guide in the datasheet, which can be used to determine the suitable component values. Additionally, online tools and simulation software can be used to aid in the component selection process.
The ISL6611ACRZ has an operating temperature range of -40°C to +125°C, with a junction temperature range of -40°C to +150°C. However, the device's performance and reliability may degrade at higher temperatures, so it's recommended to operate the device within a temperature range of -20°C to +100°C for optimal performance.
Troubleshooting common issues with the ISL6611ACRZ involves identifying the root cause of the problem, which can be done by checking the input voltage, output voltage, and current, as well as the device's thermal performance. Renesas provides a troubleshooting guide in the datasheet, which can be used to identify and resolve common issues. Additionally, online resources and application notes can provide further guidance.
The ISL6611ACRZ is designed to meet EMI and EMC standards, but proper PCB layout and design practices are still required to ensure compliance. This includes using shielding, filtering, and decoupling, as well as following good layout practices such as keeping high-frequency signals away from sensitive analog signals.
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ISL6611ACRZ Overview
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