ROHM BD6592MUV Data Sheet
Summary
Boost your displays using this high-efficiency white LED driver IC, ideal for powering middle to large LCD backlights in devices like notebooks and car navigation systems. This switching regulator provides precise PWM control and accurate current driving up to 40mA, ensuring uniform brightness across multiple LED strings and minimizing visible hotspots. The accompanying manual details comprehensive technical specifications, including wide operating voltage ranges (2.7V–22V), high efficiency rates, critical safety protections, and performance curves for reliable integration into diverse electronic equipment.
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LED Drivers for LCD Backlights
White Backlight LED Driver for Medium to Large LCD Panels (Switching Regulator Type)
BD6592MUV No.11040ECT33
●Description BD6592MUV is white LED driver IC with PWM step-up DC/DC converter that can boost max 42.5V and current driver that can drive max 40m A. The wide and precision brightness can be controlled by external PWM pulse. BD6592MUV has very accurate current drivers, and it has few current errors between each strings. So, it will be helpful to reduce brightness spots on the LCD. Small package type is suited for saving space.
●Features 1) High efficiency PWM step-up DC/DC converter (fsw=1MHz), max efficiency 93% 2) High accuracy & good matching (±3%) current drivers 6ch 3) Drive up to 12* in series, 6 strings in parallel =72 white LEDs (*white LED Vf=3.5Vmax) 4) Wide input voltage range (2.7V ~ 22V) 5) Rich safety functions ・Over-voltage protection (OVP) ・Over current limit ・External SBD open detect ・Thermal shutdown 6) Small & thin package (VQFN024V4040) 4.0 × 4.0 × 1.0mm
●Applications All middle size LCD equipments backlight of Notebook PC, portable DVD player, car navigation systems, etc.
●Absolute maximum ratings (Ta=25℃)
Parameter Symbol Ratings Unit Condition
TEST, VREG, SENSP, SENSN, SW, Maximum applied voltage 1 VMAX1 7 V RSTB, PWMPOW, PWMDRV, FAILSEL, ISETH, ISETL
Maximum applied voltage 2 VMAX2 25 V LED1, LED2, LED3, LED4, LED5,
LED6, VBAT
Maximum applied voltage 3 VMAX3 50.5 V VDET
Power dissipation 1 Pd1 500 m W *1
Power dissipation 2 Pd2 780 m W *2
Power dissipation 3 Pd3 1510 m W *3
Operating temperature range Topr -30 ~ +85 ℃
Storage temperature range Tstg -55 ~ +150 ℃ *1 Reduced 4.0m W/℃ With Ta>25℃ when not mounted on a heat radiation Board. *2 1 layer (ROHM Standard board) has been mounted. Copper foil area 0mm2, When it’s used by more than Ta=25℃, it’s reduced by 6.2m W/℃. *3 4 layer (JEDEC Compliant board) has been mounted. Copper foil area 1layer 6.28mm2, Copper foil area 2~4layers 5655.04mm2, When it’s used by more than Ta=25℃, it’s reduced by 12.1m W/℃.
●Recommended operating range (Ta=-30℃ ~ +85℃)
Ratings
Parameter Symbol Unit Condition
Min. Typ. Max.
Power supply voltage VBAT 2.7 12.0 22.0 V
www.rohm.com 2011.06 - Rev.C
© 2011 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For ROHM BD6592MUV Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 26 |
| File Size | 827.02 KB |
| Published | June 17, 2026 |
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Frequently Asked Questions
What is the input voltage range for the BD6592MUV LED driver?
The recommended operating input voltage range is 2.7V to 22V.
How many LEDs can the BD6592MUV drive?
It can drive up to 12 in series and 6 strings in parallel, totaling 72 white LEDs.
What safety functions does the BD6592MUV include?
It has over-voltage protection, over current limit, external SBD open detect, and thermal shutdown.
What is the maximum output current per channel?
The maximum current per channel is 40mA with ±3% accuracy matching.