PM 8952 Original Mobile Phone IC
Enhance Your Device’s Performance
Upgrade and maintain the integrity of your mobile phone with the PM 8952 Original Mobile Phone IC. Designed to deliver reliable performance, this essential component ensures your device operates smoothly and efficiently. PM 8952 Original Mobile Phone IC
Precision-Engineered for Compatibility
The PM 8952 IC is crafted to provide seamless compatibility with a range of mobile devices. It’s an original and high-quality part, offering a perfect fit for repairs, replacements, or upgrades. PM 8952 Original Mobile Phone IC
Optimal Durability and Stability
Experience long-lasting durability and stable performance with the PM 8952. Its premium design and reliable functionality make it the go-to choice for restoring your phone’s peak capabilities. PM 8952 Original Mobile Phone IC
The PM8952 is a high-performance Power Management Integrated Circuit (PMIC) designed by Qualcomm, primarily for mid-to-high-tier smartphones powered by the Snapdragon 600 series (like the Snapdragon 617 and 652). It is a “Master PMIC” often used in tandem with the PMI8952 (the Charging/Interface IC) to provide a complete power solution for the device. PM 8952 Original Mobile Phone IC
Below is the comprehensive technical breakdown and specifications for the original PM8952 IC.
PM8952 Technical Specifications Table
| Feature | Detailed Specification |
| Manufacturer | Qualcomm Technologies, Inc. |
| Part Number | PM8952 |
| Compatible Processors | MSM8952 (Snapdragon 617), MSM8976 (Snapdragon 652) |
| Package Type | 10 x 10 mm QFN-88 (Quad Flat No-lead) |
| Input Voltage Range | 2.5V to 4.8V (Standard Lithium-Ion Battery) |
| Buck Regulators | 6 to 8 Channels (Step-Down for CPU/GPU Cores) |
| LDO Regulators | 20+ Low-Dropout Regulators (For Analog/RF Rails) |
| Logic Interface | SPMI (System Power Management Interface) |
| Output Voltage Range | 0.6V to 3.3V (Programmable Rails) |
| Current Handling | Up to 4.5A for primary Buck channels |
| Safety Features | OVP (Over-Voltage), Thermal Shutdown (at 150°C), UVLO |
| Operating Temp | -30°C to +85°C |
Comprehensive Functional Overview
1. Advanced Power Sequencing
The PM8952 is responsible for the complex “Boot Sequence” of the phone. When you press the power button, the IC does not turn everything on at once. It follows a strictly timed protocol:
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Step 1: Initial Battery check and stable 1.8V Reference generation. PM 8952 Original Mobile Phone IC
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Step 2: Powering the RAM and Flash Memory. PM 8952 Original Mobile Phone IC
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Step 3: Providing the core voltage ($V_{core}$) to the Snapdragon processor. PM 8952 Original Mobile Phone IC
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Step 4: Releasing the “Reset” signal to the CPU to begin the Android boot process. PM 8952 Original Mobile Phone IC
2. Efficiency and Heat Management
Because it manages multiple “Buck” converters, the PM8952 is highly efficient (often $>92\%$). It uses Pulse Width Modulation (PWM) for high-load tasks (gaming) and switches to Pulse Frequency Modulation (PFM) during standby to save battery. Its thermal management system monitors junction temperatures to prevent the IC or the PCB from warping under stress. PM 8952 Original Mobile Phone IC
3. Support for Peripherals
Beyond the CPU, this IC provides dedicated power rails for:
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Camera Sensors: High-precision, low-noise LDOs to ensure clear images without electrical interference.PM 8952 Original Mobile Phone IC
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Audio Codecs: Clean power for high-fidelity audio playback.
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Fingerprint Sensors: Dedicated low-power rails for security modules.
Popular Devices Using PM8952
This IC was a staple in several iconic devices from 2016 to 2018:
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Xiaomi: Redmi Note 3 (Pro), Mi Max, Redmi 3.
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Motorola: Moto G4 Plus, Moto G5 Plus.
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Samsung: Galaxy C5, Galaxy C7.
Diagnostic Guide for Technicians
If a mobile motherboard has a faulty PM8952, you will likely observe the following symptoms:
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Dead Boot (No Current Draw): If the DC Power Supply shows 0.00A even after pressing the power button, the PM8952 or its “Power On” trigger line is likely dead.
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Short Circuit: If the board shows a “Full Short” (0.00 ohms) on the battery line, the internal MOSFETs of the PMIC may have fused.
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Boot Loop: If the device vibrates but doesn’t show a logo, it often indicates that one of the LDO rails (like the 1.8V or 1.1V for RAM) is missing.
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Hardware Overheating: The IC becomes hot to the touch immediately upon connecting the battery, indicating an internal leakage.
Repair Tip: When replacing the PM8952, always check the surrounding Buck Capacitors. A shorted capacitor next to the IC can often mimic a failed IC. Always clear the short on the capacitor before attempting to replace the chip.
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