PMI 8952 Mobile Phone IC
Boost Your Mobile Device Performance
The PMI 8952 Mobile Phone IC is a state-of-the-art integrated circuit designed to elevate your mobile device’s performance. Built with precision for seamless functionality, this component ensures reliability and efficiency with every use. PMI 8952 Mobile Phone IC
Optimized for Power and Efficiency
Whether you’re developing new devices or upgrading existing ones, the PMI 8952 excels at managing power distribution and enhancing operational efficiency. Its modern design supports optimal thermal management, ensuring your device stays cool under heavy load. PMI 8952 Mobile Phone IC
Perfect Fit for Your Mobile Development Needs
Compact, durable, and engineered with the latest technology, the PMI 8952 is the ideal choice for developers and manufacturers seeking innovative hardware solutions. Trust in this robust component to deliver consistent performance and meet the demands of modern mobile devices. PMI 8952 Mobile Phone IC
The PMI8952 is a sophisticated Power Management Integrated Circuit (PMIC) developed by Qualcomm. It is designed to work as a companion chip alongside a primary PMIC (like the PM8952 or PM8953) to handle heavy-duty power tasks such as battery charging, display power, and LED driving in mid-to-high-range smartphones. PMI 8952 Mobile Phone IC
Technical Specifications Table
| Feature Category | Specification Detail | Description/Value |
| Manufacturer | Qualcomm Technologies, Inc. | Original Equipment Manufacturer |
| Package Type | 144-pin WLNSP | Wafer Level Nano Scale Package |
| Pin Count | 144 Pins | Grid-style solder ball arrangement |
| Primary Functions | Battery Charging & Display Bias | secondary power management |
| Charging Support | Qualcomm Quick Charge 2.0/3.0 | Supports high-speed wired charging |
| Input Voltage | ~3.6V to 4.4V (VBAT) | Typical Lithium-Ion battery operating range |
| Display Bias | VDISP_P / VDISP_N | Dual-rail supply for LCD/AMOLED panels |
| Backlight Driver | WLED Driver | Multi-channel driver for screen backlighting |
| Flash/Torch | Dual LED Support | Manages high-current flash for cameras |
| Communication | SPMI Interface | System Power Management Interface for CPU |
| Haptics | Integrated Driver | Supports vibration motors (LRA/ERM) |
| Fuel Gauge | Integrated ADC | Monitors battery SOC (State of Charge) |
Key Functional Blocks
1. Battery Management & Charging
The PMI8952 is the “workhorse” for charging. It integrates a high-efficiency switching charger that supports Qualcomm Quick Charge. It manages the USB_IN path and ensures safe power delivery through thermal monitoring (via BATT_THERM) and ID detection (BATT_ID).
2. Display Power & Backlighting
One of its most critical roles is providing the specialized voltages required by modern displays. It generates both positive and negative bias voltages (often +5V and -5V) for LCD/AMOLED panels. Additionally, it features a WLED (White LED) boost converter that can drive multiple strings of LEDs for screen backlighting, often supporting CABC (Content Adaptive Backlight Control) to save power. PMI 8952 Mobile Phone IC
3. Flash and Torch Drivers
Instead of using external transistors, the PMI8952 integrates the drivers for the camera’s dual-tone flash. This allows for precise current control and protection against over-temperature during extended torch use. PMI 8952 Mobile Phone IC
4. Housekeeping & Interfaces
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Fuel Gauge: It includes a high-precision Delta-Sigma ADC to measure battery voltage and current, providing the OS with accurate battery percentages. PMI 8952 Mobile Phone IC
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SPMI: This is the “brain” connection. It allows the main processor (Snapdragon) to communicate with the IC to adjust voltages or toggle features on the fly. PMI 8952 Mobile Phone IC
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Haptics: An integrated driver for haptic feedback (vibration) simplifies the board design by removing the need for a separate vibration IC. PMI 8952 Mobile Phone IC
Common Applications
The PMI8952 is widely found in popular devices from the 2016–2018 era, including:
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Xiaomi: Redmi Note 3, Redmi 3S, Redmi Note 4.
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Samsung: Galaxy S7/S7 Edge (Qualcomm variants).
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Motorola: Moto G4 Plus.
Note for Technicians: During repair (reballing or replacement), ensure the IC orientation matches the dot on the motherboard. Because this chip manages high currents (charging/flash), cold solder joints on the ground pins (
GND_CHG) can cause severe overheating or charging failure.
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