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Datasheet
4-Channel Charge Pump
White LED Driver with 64
Dimming Steps and 1-wire Serial Interface
BD1601MUV
● General Description
The multi-level brightness control white LED driver not
● Key Specifications
? Operating power supply voltage range: 2.7V to 5.5V
only ensures efficient boost by automatically changing
the boost rate but also works as a constant current
driver in 64 steps, so that the driving current can be
?
?
?
LED maximum current:
Oscillator frequency:
Quiescent Current:
30mA (Typ.)
1.0MHz(Typ.)
0.1 μ A (Typ.)
adjusted finely. This IC is best suited to turn on white
LEDs that require high-accuracy LED brightness
?
Operating temperature range: -30 ℃ to +85 ℃
control.
● 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
maximum).
? Various protection functions such as output voltage
protection, over current limiter and thermal shutdown
● Package W(Typ.) x D(Typ.) x H(Max.)
VQFN016V3030
3.00mm x 3.00mm x 1.00mm
circuit are mounted.
● Applications
This driver is applicable for various fields such as
mobile phones, portable game machines and white
goods.
● Typical Application Circuit
White LED Application (Recommended)
● Pin Configuration [Top View]
LED1 13
LED2 14
LED3 15
LED4 16
8 C1P
7 VBAT
6 VOUT
5 NC
○ Product structure ： Silicon monolithic integrated circuit
○ This product is not designed protection against radioactive rays
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111 ? 14 ? 001
1 / 14
TSZ02201-0G3G0C200030-1-2
05.Nov.2012 Rev.001
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