14.22 mm x 8.89 mm

Q:What defines the physical structure of PQFN-48?

A:Key features include:
- Leadless bottom-mounted pads: Ensures robust solder joints and space efficiency.
- Central thermal pad (6.5 mm × 6.5 mm coverage): Enhances heat dissipation to the PCB.
- 48-pin layout with perimeter array: Optimizes I/O density while maintaining signal integrity.
- 1.0 mm ultra-thin profile: Ideal for low-profile applications.

Q:Why choose PQFN-48 over alternatives?

A:Critical advantages:
- Miniaturization: 30% smaller footprint than equivalent QFP packages.
- Thermal Performance: Direct PCB heat path via exposed thermal pad reduces θJA by 25%.
- Electrical Benefits: Low-inductance design (<1 nH) for high-frequency stability.
- Reliability: Moisture-resistant substrate (MSL3 certified).

Q:What are common technical specs?

A:Standard configurations (consult datasheets):
- Body Size: 14.22 mm × 8.89 mm.
- Height: 1.0 mm (nominal).
- Pin Pitch: 0.5 mm.
- Material: Copper-alloy leads with Ni/Pd/Au plating.
- Temp Range: -40°C to +125°C (industrial grade).

Q:Where is PQFN-48 typically applied?

A:Dominant use cases:
- Power Converters: Multi-phase DC-DC regulators (e.g., TI TPS546D24A).
- RF Modules: 5G PA modules (e.g., Qorvo QPM2632).
- Sensor Interfaces: MEMS-based IoT devices (e.g., Bosch BMI270).

Q:What are critical assembly guidelines?

A:Key recommendations:
- PCB Design: 4×4 thermal via array under pad (0.3 mm diameter).
- Solder Paste: Type 4 solder recommended for fine-pitch printing.
- Reflow Profile: Peak temp ≤ 245°C (Pb-free process).
- Inspection: X-ray (AXI) mandatory for void detection (<15% tolerance).