BU64297GWZ-TR.pdf
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The BU64297GWZ-TR is a bi-directional VCM driver developed by Rohm Semiconductor to improve autofocus performance in mobile camera modules. It is designed to drive a voice coil motor using constant-current control, enabling stable and repeatable lens movement across different module tolerances.
One key advantage is its built-in ISRC (Intelligent Slew Rate Control) to reduce mechanical ringing. By damping oscillation during lens transitions, ISRC helps the camera settle faster, which is especially valuable for continuous autofocus, video recording, and scenes requiring frequent focus re-lock.
The driver supports 10-bit current control and uses a 2-wire serial interface (I²C compatible), allowing easy integration with ISP/SoC control firmware. An integrated current sense resistor helps reduce BOM and improves current-control consistency in mass production.
Bi-directional constant-current drive enables forward and reverse motion control, providing greater freedom for autofocus calibration and smoother focus transitions.
ISRC mechanical ringing compensation reduces lens oscillation, helping the autofocus system stabilize quicker after step changes and improving real-world imaging sharpness.
10-bit current control supports small step adjustments and better repeatability, making autofocus algorithms easier to tune for different lens modules.
Integrated current sense resistor reduces external components and supports consistent manufacturing results in compact 6-XFBGA (UCSP35L1-6) layouts.
Designed to drive bi-directional VCM actuators with stable current regulation for accurate positioning.
Enables fine current steps for smooth lens movement, improved repeatability, and easier AF calibration.
Intelligent slew-rate control helps reduce mechanical ringing to optimize autofocus settling time.
Simple control interface for camera systems using ISP/SoC I²C buses and standard actuator control flows.
Reduces BOM and improves current-control consistency between builds and production lots.
6-XFBGA (UCSP35L1-6) package supports thin modules and high-density PCB designs in mobile devices.
| Parameter | Value / Condition |
|---|---|
| Manufacturer | Rohm Semiconductor |
| Part Number | BU64297GWZ-TR |
| Function | Bi-directional VCM Driver for Auto Focus |
| Drive Method | Bi-directional Constant Current Drive |
| Control Resolution | 10-bit Current Control |
| Ringing Reduction | ISRC Mechanical Ringing Compensation |
| Interface | 2-wire Serial Interface (I²C compatible) |
| Output Current (reference) | 100 mA (typical listing spec; confirm in design requirements) |
| Operating Temperature | -25 °C to +85 °C |
| Package | 6-XFBGA, CSPBGA (UCSP35L1-6) |
When selecting a replacement for BU64297GWZ-TR, compare bi-directional capability, I²C control/register behavior, current range, anti-ringing behavior, and package footprint. Common alternatives in the same AF/VCM driver category include:
For production replacement, always validate autofocus settling time, overshoot, and stability on the target lens module.
Rohm Semiconductor is a global supplier of power management ICs, analog ICs, motor/actuator drivers, and discrete semiconductors. The company supports consumer electronics, industrial automation, and automotive markets with a focus on compact packaging, low-noise performance, and robust reliability.
For camera module applications, ROHM's VCM driver portfolio provides I²C-controlled actuator solutions with features such as constant-current drive and anti-ringing techniques to improve autofocus speed and stability.
Autofocus actuation for compact rear/front camera assemblies.
Precise VCM lens control in battery-powered mobile platforms.
Space-constrained optical modules requiring stable lens positioning.
Compact autofocus systems in IoT cameras and portable scanners.
Incoming lots are checked for package integrity and label consistency. Batch traceability records help support audit requirements and reduce supply chain risk for production builds.
For high-risk categories such as small UCSP packages, authenticity controls may include marking inspection, X-ray sampling, and basic electrical screening based on project requirements.
Parts are handled under ESD-safe procedures. Moisture-sensitive components follow MSL handling best practices to maintain solderability and reduce assembly defects.
Final checks confirm part number, quantity, and packaging condition to minimize receiving issues and prevent line-down events.
We currently provide peer-to-peer order processing. Submit an RFQ for BU64297GWZ-TR, and our professional agent will contact you with competitive global pricing and guide you to complete the order once you accept the offer.
Our experienced QC team strictly verifies and tests BU64297GWZ-TR. Only qualified suppliers who pass our audit can list BU64297GWZ-TR on OEM STOCK GLOBAL LIMITED. We pay close attention to sourcing channels and product quality so you can purchase with confidence.
Pricing and inventory for BU64297GWZ-TR fluctuate and are updated periodically (typically within 24 hours). Quotations generally remain valid for 5 days unless otherwise stated.
Wire Transfer, PayPal, Alipay, WeChat Pay, Credit Card, Western Union, MoneyGram, and Escrow are supported. Note: Some payment methods may incur a handling fee.
We support DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is available. After dispatch, you will receive an email with tracking information. Note: Carriers may take up to 24 hours to show tracking events. Typical transit time: 3–5 days by express; 25–60 days by registered mail.
We perform Pre-Shipment Inspection (PSI) on randomly selected units before shipping. If there is an issue with BU64297GWZ-TR, returns/replacements are accepted when:
Steps: (1) Inform us within 90 days; (2) Obtain Return Authorization (RMA) before sending items back.
Please contact us for technical documents and support related to ROHM Semiconductor BU64297GWZ-TR, including pin diagrams and datasheets. Our team will respond promptly.
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