ROHM BD1601MUV Data Manual
Summary
This advanced 4-channel LED driver provides professional multi-level brightness control for white LEDs, featuring 64 dimming steps and ultra-fine current adjustment. Utilizing a single-wire serial interface and an automatic charge pump converter, this high-efficiency component ensures stable, precise lighting output for diverse applications. The manual details its operation, including system integration, multiple power conversion modes (×1, ×1.5, ×2), and robust protection circuits. It is ideal for designers creating consumer electronics like mobile phones, portable gaming devices, and white goods that require exceptional LED brightness accuracy.
Page 1 Text Content
Datasheet
4-Channel Charge Pump White LED Driver with 64 Dimming Steps and 1-wire Serial Interface BD1601MUV ●General Description ●Key Specifications The multi-level brightness control white LED driver not Operating power supply voltage range: 2.7V to 5.5V only ensures efficient boost by automatically changing LED maximum current: 30m A (Typ.) the boost rate but also works as a constant current Oscillator frequency: 1.0MHz(Typ.) driver in 64 steps, so that the driving current can be Quiescent Current: 0.1μA (Typ.) adjusted finely. This IC is best suited to turn on white Operating temperature range: -30℃ to +85℃ LEDs that require high-accuracy LED brightness control.
●Package W(Typ.) x D(Typ.) x H(Max.)
●Features Built-in parallel LED driver for 4 lamps. 64-step LED current adjusts function. Inter-LED relative current accuracy: 3% or less Lighting/dimming control via a single-line digital
control interface. Automatic transition charge pump type DC/DC converter (×1,×1.5 and ×2).
High efficiency achieved (90% or more at 2P
maximum).
VQFN016V3030
Various protection functions such as output voltage EN 2N
3.00mm x 3.00mm x 1.00mm
protection, over current limiter and thermal shutdown circuit are mounted. 1N
●Applications This driver is applicable for various fields such as mobile phones, portable game machines and white goods.
●Typical Application Circuit ●Pin Configuration [Top View] White LED Application (Recommended)
LED1 C1P 13 8
LED3 VOUT
LED4 NC
○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays www.rohm.com
TSZ02201-0G3G0C200030-1-2
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111･14･001 05.Nov.2012 Rev.001
Page Summary Contents For ROHM BD1601MUV Data Manual
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 17 |
| File Size | 396.85 KB |
| Published | June 19, 2026 |
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Frequently Asked Questions
What types of applications is this LED driver suitable for?
It can be used in various fields including mobile phones, portable game machines, and white goods.
How is the LED brightness controlled?
The device supports multi-level brightness control with 64 dimming steps via a single-line digital interface using the EN pin.
What are the operating voltage limits for this driver?
The recommended operating power supply voltage range is between 2.7V and 5.5V.
Is this chip designed for specialized environments, like radiation zones?
No, the product structure explicitly states that it is not designed to protect against radioactive rays.