ROHM BD6085GUL Data Sheet
Summary
This advanced charge pump LED driver is engineered for high-performance backlight applications in small LCD panels, making it ideal for highly integrated consumer electronics, especially cellular devices. The unit provides multifunctional control for up to 7 LEDs (Main/Sub/Flash) with fully customizable current setting and register grouping. It includes LDO regulators and robust DC/DC power management featuring automatic safeguards like over-voltage, over-current, and thermal shutdown. This manual details the complete electrical characteristics and technical integration guidelines necessary for reliable system design and manufacturing.
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LED Drivers for LCD Backlights
Multifunction Backlight LED Drivers for Small LCD Panels (Charge Pump Type)
BD6085GUL No.11040EAT28
●Description BD6085GUL is Multi-Function LED Driver that is the most suitable for the cellular phone. It has many functions that are needed to "the upper side" of the cellular phone.
●Features 1) Total 7LEDs driver for LCD Backlight (Main/Sub) and LED Flash It can set maximum 30m A by 32 steps (Current DAC) for Main/Sub Display It can set maximum 360m A for Flash LED driver (It has 3 channels LED driver at maximum 120m A/ch for Flash.) The number of lighting for Main/Sub/Flash LED can be set up grouping by register. Ex. ) 4LEDs / 0LED / 3LEDs 4LEDs / 1LED / 2LEDs 4LEDs / 2LEDs / 1LED 4LEDs / 1LED / 1LED 5LEDs / 1LED / 1LED 5LEDs / 0LED / 2LEDs 6LEDs / 0LED / 1LED It can use the 1LED Flash module to 3LED Flash module. Normal mode = maximum 30m A/ch, Flash mode = x4 normal mode (for 3ch LED). The grouping of LED is independently controlled by register. 2) 4ch Series Regulator (LDO) It has selectable output voltage by the register. LDO1,LDO2 : Iomax=200m A LDO3,LDO4 : Iomax=150m A 3) Charge Pump DC/DC for LED driver It has x1/x1.33/x1.5/x2 mode that will be selected automatically. Soft start functions Over voltage protection (Auto-return type) Over current protection (Auto-return type) 4) Thermal shutdown (Auto-return type) 5) I2C BUS FS mode(max 400k Hz)Write/Read 6) VCSP50L3(3.30mm×3.30mm, 0.55mm) Small and thin CSP package
*This chip is not designed to protect itself against radioactive rays. *This material may be changed on its way to designing. *This material is not the official specification.
●Absolute Maximum Ratings (Ta=25 ℃)
Parameter Symbol Ratings Unit
Maximum voltage VMAX 7 V Power Dissipation Pd 1325 m W Operating Temperature Range Topr -35 ~ +85 ℃ Storage Temperature Range Tstg -55 ~ +150 ℃ note)Power dissipation deleting is 10.6m W/ ℃, when it’s used in over 25 ℃. (It’s deleting is on the board that is ROHM’s standard)
●Operating conditions (VBAT≥VIO, Ta=-35~85 ℃)
Parameter Symbol Ratings Unit
VBAT input voltage VBAT 2.7~5.5 V VIO pin voltage VIO 1.65~3.3 V
www.rohm.com 2011.04 - Rev.A
© 2011 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For ROHM BD6085GUL Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 29 |
| File Size | 470.74 KB |
| Published | June 02, 2026 |
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Frequently Asked Questions
How can the LED lighting be adjusted across Main, Sub, and Flash segments?
The number of LEDs for Main/Sub/Flash can be grouped and independently controlled by registers (e.g., 4LEDs / 1LED / 2LEDs).
What is the maximum continuous flash current available?
The system supports setting a maximum of 360mA for the Flash LED driver, utilizing up to three channels at a maximum of 120mA/channel.
What are the acceptable input voltage ranges needed for operation?
The recommended operating conditions require an input voltage (VBAT) between 2.7V and 5.5V, while the VIO pin should be maintained between 1.65V and 3.3V.
Does this driver have protection against common electrical failures?
Yes, it features over voltage, over current, and thermal shutdown protections, all of which are auto-return types.