Products Description

The Driving Recorders PCBA is engineered as the high‑reliability core for automotive video event recording systems. It integrates a high‑performance processor supporting dual or triple camera inputs, with hardware video encoding (H.264/H.265) for simultaneous front, rear, and cabin views. The board features a power management IC with automotive‑grade transient protection, handling 12V/24V vehicle supply with load‑dump and reverse‑battery safeguards. A built‑in GPS receiver provides accurate speed and location metadata, while an accelerometer (G‑sensor) detects collisions and automatically locks critical footage. Storage is handled by a MicroSD card interface with robust write‑cycling management. The board includes a real‑time clock for accurate time‑stamping and a supercapacitor or battery backup for clean file closure during sudden power loss. Designed for extreme temperature ranges (-20°C to +85°C), the PCBA uses automotive‑grade components and conformal coating to withstand vibration, moisture, and thermal cycling inside a vehicle cabin. Compact and thermally optimized, it fits into mirror‑mounted or dash‑mounted form factors.

PCBA Display

PCBA For Routers PCBA for USB Hub Smart Water Leak Detector PCBA Fan Filter Main PCBA Board

Production Process

The assembly of automotive recorder boards demands high reliability under thermal and mechanical stress. Solder paste printing uses Type 4 or Type 5 powder with SPI to ensure consistent volume on fine‑pitch pads of the main processor and power management ICs. Reflow is performed with a multizone oven under nitrogen, using a profile that minimizes voiding under large BGA packages while avoiding component damage from high peak temperatures. X‑ray inspection is mandatory for BGAs and power components. After reflow, selective soldering attaches thru‑hole connectors (camera inputs, power, GPS antenna). A robotic selective coating robot applies a thick, automotive‑grade conformal coating, with mask tooling protecting MicroSD slot contacts, button interfaces, and test points. Board depanelization uses routing with entry/backup material to avoid burrs on narrow board sections. Final assembly includes installation of a supercapacitor holder (with proper retention clips), GPS antenna feed‑through capacitors, and an LED light pipe over the recording status indicator. Each board then undergoes powered programming of the processor and bootloader, followed by a final visual inspection under UV light to confirm coating coverage before proceeding to functional test. All assembly steps are performed in ESD‑safe workstations with moisture‑barrier packaging applied immediately.

Production and Quality

Our manufacturing process for automotive video recorder boards follows strict quality protocols to ensure reliable operation in harsh vehicle environments. Each board undergoes In‑Circuit Test (ICT) and a comprehensive Functional Test (FCT) using a simulated vehicle environment. The FCT validates video capture from multiple camera inputs, H.264/H.265 encoding, GPS signal acquisition, G‑sensor response, and MicroSD write/read performance. Power management testing includes 12V/24V operation, load‑dump surge immunity, and battery backup/supercapacitor charge/discharge verification.

We utilize advanced SMT lines with 3D SPI, Automated Optical Inspection (AOI), and X‑ray for BGA and power packages. A thick conformal coating is applied to protect against vibration and moisture. Each board passes a 48‑hour temperature cycling test (-20°C to +85°C) with continuous recording to screen early failures and verify thermal stability.

Our supply chain includes long‑term agreements with automotive‑grade processor and power IC suppliers. Standard lead time is 6‑7 weeks for volume orders. With high‑precision placement lines and dedicated automotive test racks, we maintain scalable capacity to meet aftermarket and OEM production schedules while ensuring consistent quality and on‑time delivery.

Q&A

Q: What is the most critical performance parameter for a dashcam PCBA that is rarely listed on datasheets?

A: The most critical parameter is start‑up time to recording. A Driving Recorders PCBA must begin writing video within 2‑3 seconds of ignition power‑on; otherwise, it may miss the first moments of an incident. Achieving this requires careful firmware design, a bootloader that initializes only essential peripherals, and a power supply that ramps up quickly. We test this on every board by applying power and measuring the time from 12V present to the first recorded frame. Any unit exceeding 3 seconds is rejected, even if all other functions pass.

Q: How do you validate that the G‑sensor correctly triggers event locking without false alarms?

Answer: During FCT, the board is placed on a calibrated vibration table. We apply specific shock pulses – 2g, 5g, and 10g – in X, Y, and Z axes. The board must lock the current video segment above a settable threshold (typically 4g) and ignore lower vibrations. We also test sensitivity by ramping acceleration slowly; the board's threshold must be within ±0.5g of the setpoint. All axes and both rising/falling edges are verified. This screening is automated and logged per board, ensuring field performance consistency.

Q: The Supercapacitor keeps files safe during sudden power loss. How do you test its charge retention without waiting hours?

Answer: We perform an accelerated discharge test. The board is powered on, the supercapacitor is fully charged, and power is abruptly cut. We measure the time the board continues recording until the voltage drops below the minimum operating level. A passing board must sustain recording for at least 5 seconds. This is done using a custom fixture that logs the waveform. The results correlate well with long‑term retention; the capacitance value is verified at incoming inspection, so we only need to confirm the circuit works and the timer is set correctly. We also verify that the file closure flag is set in the last recorded clip – no corrupted files are allowed.