Detailed Explanation of Parameters, Applications and Pin Functions of ISL62882IRTZ Multiphase PWM Controller
Product Overview
The ISL62882IRTZ is a dual-phase/three-phase PWM controller launched by Renesas (formerly Intersil), mainly used to provide high-precision power management for Intel laptops or embedded processors (compatible with VR10 and VR11 specifications). This device features excellent dynamic response, load transient compensation capability, and comprehensive protection functions, making it suitable for constructing multiphase voltage regulators (VRM) for CPU/Vcore/VTT voltage regulation.
Main parameter specifications
Project Parameter description
Model ISL62882IRTZ
Controller type: Multi-phase PWM controller (supporting 2-phase or 3-phase)
Input voltage 5V (logic), suitable for 12V power supply of the system
Output voltage range: 0.3V to 1.5V (supports programmable VID)
Supported VID standards Intel VR10/VR11
Package form: 40 pins, 5mm × 5mm QFN
Voltage regulation accuracy ±0.5% (typical)
Efficience-optimized adaptive gate drive and support for dynamic phase number control
Protection functions: OVP, UVP, OCP, OTP, and soft start protection
The frequency supports 200kHz to 1MHz (adjustable)
Package code QFN-40 (pad facing down, heat sink)
The operating temperature range is -10°C to +100°C
The RoHS environmental protection standard complies with lead-free standards
Core characteristics
⚙️ Multiphase regulation control: supports 2-phase and 3-phase power supply modes to improve current distribution uniformity
🔍 Precision Voltage control: Supports VID dynamic adjustment to meet the voltage variation requirements of Intel processor Vcore
💡 Efficiency optimization function: Supports PSI, automatic energy-saving phase number switching to improve light load efficiency
🖥️ high-performance embedded platform with Intel architecture SoC or Core module development board or industrial motherboard
📡 Dynamic phase regulation and precise load response are required in the communication and server motherboard power subsystem
⚙️ Power module developed for modular DC-DC converter control system
Brief description of Pin Functions (QFN-40 package)
The ISL62882IRTZ offers 40 pins, among which the main functional distribution is as follows:
PWM1/2/3: Control the drive of each MOSFET bridge arm separately
ISENx: Current detection input for current balancing and OCP
VID0 to VID7: Input Voltage identification Code (Intel VID)
VCC, VDDP: Power supply pins
EN: Enable to start
VR_RDY: Voltage ready output signal
FB/COMP: Error Amplifier Feedback and Compensation
IMON: Output current monitoring output
Note: It is recommended to refer to the official Renesas ISL62882 data sheet for the complete schematic design and wiring layout.
Equivalent/compatible model recommendation
Model manufacturer's Description
ISL62883IRTZ Intersil is similar to ISL62882 and supports standards similar to VID
TPS51622 Texas Instruments 2/3 phase controller, supporting the mobile Intel platform
RT8856A Richtek three-phase PWM controller, compatible with Intel VR10 platform
The subsequent enhanced version of ISL95833HRTZ Renesas supports greater current and faster dynamic response
Summary
The ISL62882IRTZ, with its high integration, high efficiency and excellent precise voltage control, has become one of the classic PWM controllers in the power supply scenarios of Intel mobile processors. With its multi-phase output capability, complete protection mechanism and compatibility with the VR10/11 standard, it is widely used in notebook motherboards, industrial control boards and power modules, and is a reliable choice for the design of CPU core power supply systems.
