PM 6450 Mobile Phone IC

Optimized for Unmatched Performance

The PM 6450 Mobile Phone IC is designed to deliver stable and efficient power solutions for your device. Its reliable performance ensures seamless functionality, making it an essential component for your mobile phone’s power management system. PM 6450 Mobile Phone IC

Innovative Technology for Compact Design

Featuring cutting-edge engineering, the PM 6450 IC is compact and lightweight yet packed with robust features. Its small size integrates effortlessly into modern mobile devices, without compromising on power or efficiency. PM 6450 Mobile Phone IC

Dependable and Industry-Grade Quality

Manufactured with precision and adhering to industry standards, the PM 6450 Mobile Phone IC guarantees longevity and reliability. It is the perfect choice for professionals and enthusiasts looking for a dependable power solution for their projects.PM 6450 Mobile Phone IC

The PM6450 is a sophisticated Power Management Integrated Circuit (PMIC) designed by Qualcomm, primarily utilized in mid-to-high-tier smartphones featuring Snapdragon chipsets (such as the Snapdragon 6 Gen 1). It acts as the “electrical heart” of the mobile device, orchestrating the distribution of power from the battery to various power-hungry components like the CPU, RAM, and display. PM 6450 Mobile Phone IC

Below are the detailed specifications and technical insights for the PM6450. PM 6450 Mobile Phone IC

Technical Specifications Table

Feature	Specification Details
Manufacturer	Qualcomm
Model Number	PM6450 (often seen as PM6450-001 or 000)
Type	Power Management Integrated Circuit (PMIC)
Package Type	QFN (Quad Flat No-leads) / BGA (Ball Grid Array)
Pin Count	24-Pin (variant dependent)
Communication Interface	$I^2C$ / SPMI (System Power Management Interface)
Input Voltage Range	2.5V to 4.8V (Standard Li-ion/Li-Poly range)
Output Rails	Multiple Buck Converters & LDOs (Low Dropout Regulators)
Standby Current	$< 10\mu A$ (Ultra-low quiescent current)
Operating Temperature	-40°C to +125°C (Internal shutdown at $\approx 150$ °C)
Charging Support	Qualcomm Quick Charge 3.0/4.0 compatible
Safety Features	OVP (Over Voltage), OCP (Over Current), Thermal Throttling

Core Functions and Role

The PM6450 is not a single-task chip; it handles a massive array of concurrent power requirements. Its primary roles include:

Voltage Regulation: It steps down the high battery voltage (typically 3.7V – 4.2V) to the precise levels required by sensitive electronics, such as 1.1V for the CPU core or 1.8V for the RAM.
Battery Management: It monitors the state of charge, manages the charging cycle, and prevents the battery from over-charging or discharging to dangerous levels.
Thermal Management: The IC includes internal sensors that monitor the board’s heat. If the device gets too hot, the PM6450 can “throttle” the power, effectively cooling the device down.
Power Sequencing: When you press the power button, the PM6450 ensures that components turn on in the correct order (e.g., CPU before Display) to prevent hardware “latch-up” or damage.

Typical Symptoms of a Faulty PM6450

In the world of mobile repair, the PM6450 is a common culprit for specific hardware failures. If this IC is damaged, you will typically observe:

Dead Phone: The device refuses to turn on, and there is 0.0A current draw when connected to a DC power supply.
Short Circuit: The phone’s main power rail (VCC_MAIN / V_BATT) shows a short to ground, often causing the battery to heat up instantly.
Hanging on Logo: If the power rails for the RAM or CPU are unstable, the phone may start to boot but “freeze” as soon as the processor requires higher current.
Fake Charging: The phone shows the charging icon, but the battery percentage never increases or actually decreases during use.

Compatible Devices

While used in many OEM designs, the PM6450 is most frequently identified in the following models:

Xiaomi: Redmi Note series, Poco M3, Redmi 9T.
Motorola: Moto G series (e.g., XT2083).
Honor: X50 series (specifically those using the Snapdragon 6 Gen 1).
Oppo/OnePlus: Various mid-range 5G models.

Repair & Installation Notes

Note for Technicians: Replacing the PM6450 requires advanced micro-soldering skills. The chip is usually surface-mounted with BGA solder balls.

Reballing: If the IC is not “dead” but has cracked solder joints due to a drop, it can be removed, reballed using a 0.12mm stencil, and soldered back on.
Heat Sensitivity: When soldering, use a temperature of approximately 330°C to 350°C with low airflow to avoid “popcorning” the chip or blowing away nearby SMD components.
Orientation: Ensure the “Pin 1” dot on the IC matches the marking on the PCB, or the chip will short out immediately upon power-up.

PM 6450 Mobile Phone IC