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ISL68229IRAZ Datasheet(PDF) 18 Page - Renesas Technology Corp

Part # ISL68229IRAZ
Description  Digital Triple Output, 12-Phase PWM Controller
PDF  107 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL68229IRAZ Datasheet(HTML) 18 Page - Renesas Technology Corp

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ISL68229, ISL68239
3. Initializing the Device
R16DS0006EU0101 Rev.1.01
Page 18 of 106
Jul 21, 2022
3.
Initializing the Device
3.1
Power-On Reset (POR)
Initialization begins after VCC crosses its rising POR threshold. When POR conditions are met, basic digital
subsystem integrity checks begin. During this process, the controller starts the telemetry subsystem, configures
its PMBus address according to the ADDRESS pin resistor value, loads the selected user configuration from NVM
as indicated by the CONFIG pin resistor value, checks fault status, and prepares for regulation. The PWM pins
are held in tri-state until the device is commanded to regulate. Figure 5 shows the device initialization sequence.
Figure 5. Simplified PMBus Initialization Timing Diagram



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