PMI 632-802 Original Mobile Phone IC
Engineered for Performance and Reliability
The PMI 632-802 Original Mobile Phone IC is meticulously crafted to ensure optimal performance in mobile devices. Designed with precision, this IC guarantees seamless functionality and efficient power management, making it an essential component for modern smartphones. PMI 632-802 Original Mobile Phone IC
High Compatibility and Durability
Compatible with a wide array of mobile phone models, the PMI 632-802 IC is engineered to enhance device longevity and operational stability. Its robust design ensures it can handle demanding tasks, providing your mobile device with the reliability it needs for everyday use.
Why Choose PMI 632-802 IC?
This original mobile phone IC stands out for its exceptional build quality and unparalleled performance. Whether you’re repairing, upgrading, or maintaining your phone, the PMI 632-802 IC ensures consistent output, giving you the quality you deserve.
The PMI 632-802 is a high-efficiency Power Management Integrated Circuit (PMIC) developed by Qualcomm.1 It is a secondary power management chip frequently found in mid-range and budget smartphones powered by Snapdragon chipsets, such as the Oppo A5, Vivo V15 Pro, and Xiaomi Redmi 8.2
Unlike the primary PMIC (like the PM660 or PM8953), the PMI632 series specifically focuses on high-current tasks like battery charging, display power, and LED illumination.
PMI 632-802 Technical Specifications
The following table summarizes the core technical parameters and functional characteristics of the PMI 632-802 IC.
| Feature | Specification |
| Manufacturer | Qualcomm |
| Model Variant | PMI 632-802 (Rev 00/01 common) |
| Primary Function | Secondary Power Management (Charging & Interface) |
| Pin Count | 72-Pin BGA (Ball Grid Array) |
| Charging Support | Quick Charge (QC) 3.0/4.0 compatible |
| Input Voltage (VBUS) | 3.9V to 14V (Typical USB input range) |
| Regulated Outputs | VDISP (Display), VSN (Negative), VSP (Positive) |
| LED Channels | Dual-channel RGB and Flash LED drivers |
| Interface | SPMI (System Power Management Interface) |
| Package Size | Approx. 3.0mm x 3.5mm x 0.5mm |
| Commonly Paired CPU | Snapdragon 439, 450, 632, 660, 675 |
Detailed Functional Breakdown
1. Battery & Charging Management
The PMI 632-802 acts as the “gatekeeper” for power entering the phone via the USB-C or Micro-USB port. It manages the switching frequency to ensure the battery charges efficiently without generating excessive heat. PMI 632-802 Original Mobile Phone IC
-
Safety: Includes thermal shutdown and over-voltage protection (OVP). PMI 632-802 Original Mobile Phone IC
-
Fuel Gauge: Integrated sensing to report accurate battery percentage to the OS. PMI 632-802 Original Mobile Phone IC
2. Display Power Supply (LCD/OLED)
A critical role of this IC is generating the specific voltages required for the display panel. PMI 632-802 Original Mobile Phone IC
-
VSP/VSN: Generates the positive and negative voltages (typically $+5V$ and $-5V$) required for LCD bias. PMI 632-802 Original Mobile Phone IC
-
Backlight: Often manages the boost converter for the display backlight strings in LCD models. PMI 632-802 Original Mobile Phone IC
3. Pin Configuration Categories
With 72 pins, the IC handles a diverse range of signals.5 These are generally categorized into:
-
Power Input: VBUS (USB Power), VBATT (Battery Connection).
-
Power Output: VPH_PWR (System Main Power), VDD_DISP.6
-
Control/Data: SPMI_CLK, SPMI_DATA (Communication with the CPU).7
-
Peripheral: GPIOs for vibration motor (Haptics) and RGB notification LEDs.
Common Fault Symptoms
Because this IC handles high current (charging) and high voltage (display), it is a common point of failure in mobile repair. Typical symptoms of a faulty PMI 632-802 include:
-
Fake Charging: The phone shows the charging icon, but the battery percentage does not increase.
-
No Graphics: The phone turns on (vibrates or makes sound), but the screen remains black.
-
Dead Condition: If the VPH_PWR line (main system rail) is shorted inside this IC, the phone will not power on at all.
-
Heating during Charge: Excessive heat localized near the IC when plugged into a charger.
Application and Compatibility
The “802” suffix denotes the specific firmware or revision programmed for certain hardware configurations. While it is physically similar to the PMI 632-502 or 902, they are often not interchangeable because the internal registers and voltage outputs may be configured differently for different phone models.
Note for Technicians: When replacing this IC, always ensure the version number (e.g., 802-00) matches the original part to avoid issues with display initialization or charging speed.
More Products : https://gaffarmarketdelhi.com
