ROHM BD6370GUL Data Sheet
Summary
These specialized System Lens Drivers are essential components engineered for modern digital still cameras and single-lens reflex systems. They provide precise motor control via advanced H-bridge channels for functions like auto focus (stepping motors) and zoom/iris adjustments (DC motors). The manual details comprehensive technical specifications, including absolute maximum ratings, built-in high-precision D/A converters, and multiple operating modes for system integration. This resource is ideal for electronics engineers developing professional camera equipment that requires accurate, reliable motor actuation.
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System Lens Driver for Digital Still Cameras / Single-lens Reflex Cameras
5ch System Lens Drivers for Digital Still Cameras BD6370GUL, BD6758MWV, BD6758KN
No.09014EAT01
●Description The BD6370GUL motor driver provides 3 Constant-Voltage Drive / Full-ON Drive H-bridge channels, 1 Constant-Voltage Drive / Linear Constant-Current Drive / Full-ON Drive H-bridge channel, and 1 Constant-Current Drive H-bridge channel, while the BD6758MWV and the BD6758KN provides 4 Full-ON Drive H-bridge channels and 1 Linear Constant-Current Drive H-bridge channel. A Stepping motor can be used for auto focus and a DC motor for zoom and iris. ROHM offers both an advance type equipped with a D/A converter in all channels and a standard type, allowing selection of the ideal unit depending on the application.
●Features 1) Subminiature 24PIN Wafer-level CSP (Chip Size Package): 2.6 x 2.6 x 0.55mm3 (BD6370GUL) 2) Resemblance 6ch drive function (BD6370GUL) 3) Drive type selection (BD6370GUL) 4) Low ON-Resistance Power CMOS output: All blocks (Const.-V/Full-ON Drive, Const.-V/Const.-C/Full-ON Drive, and Const.-Current Drive) with 1.4Ω Typ. (BD6370GUL) Full-ON Drive block with 1.2Ω Typ. and Linear Constant-Current Drive block with 1.0Ω Typ. (BD6758MWV / KN) 5) Serial interface 3-line bus control input (BD6370GUL) 6) Built-in Constant-Voltage control 6-bit D/A converter and Constant-Current control 6-bit D/A converter resolution (BD6370GUL) 7) Built-in ±5% high-precision Constant-Voltage Driver (BD6370GUL) 8) Built-in ±3% high-precision Linear Constant-Current Driver 9) Constant-Voltage Drive block and Constant-Current Drive block features phase compensation capacitor-free design 10) 1.2V±3% high-precision reference voltage output (BD6758MWV / KN) 11) Drive mode switching function (BD6758MWV / KN) 12) UVLO (Under Voltage Lockout Protection) function 13) Built-in TSD (Thermal Shut Down) circuit 14) Standby current consumption: 0μA Typ.
●Absolute Maximum Ratings
Limit
Parameter Symbol Unit
BD6370GUL BD6758MWV BD6758KN
Power supply voltage VCC -0.3 to +6.5 0 to +7.0 0 to +7.0 V Motor power supply voltage VM -0.3 to +6.5 0 to +7.0 0 to +7.0 V Control input voltage VIN -0.3 to VCC+0.3 0 to VCC 0 to VCC V Power dissipation Pd 830※1 880※2 875※3 m W Operating temperature range Topr -25 to +85 -25 to +85 -25 to +85 °C Junction temperature Tjmax +150 +150 +150 °C Storage temperature range Tstg -55 to +150 -55 to +150 -55 to +150 °C H-bridge output current Iout -500 to +500※4 -800 to +800※4 -800 to +800※4 m A/ch ※1 Reduced by 6.64m W/°C over 25°C, when mounted on a glass epoxy board (50mm 58mm 1.75mm; 8layers). ※2 Reduced by 7.0m W/°C over 25°C, when mounted on a glass epoxy board (74.2mm 74.2mm 1.6mm). ※3 Reduced by 7.0m W/°C over 25°C, when mounted on a glass epoxy board (70mm 70mm 1.6mm). ※4 Must not exceed Pd, ASO, or Tjmax of 150°C.
www.rohm.co
2009.06 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For ROHM BD6370GUL Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 33 |
| File Size | 820.65 KB |
| Published | June 06, 2026 |
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Frequently Asked Questions
Which motors can be controlled by these drivers?
A stepping motor can be used for auto focus, and a DC motor can be used for zoom and iris.
What is the maximum output current rating for the BD6758 series?
The H-bridge output current (Iout) is rated from -800 to +800 mA/ch.
How do I select the proper driver model based on my application?
ROHM offers both advance types with a D/A converter and standard types, allowing selection of the ideal unit depending on your specific application.
What safety precautions must be implemented when using these drivers?
Due to potential failure risks, implement safety measures like derating, redundancy, fire control, and fail-safe designs. The products are not for use in life-critical systems.