BA00DD0W_12 Datasheet, PDF (1/25 Pages) Rohm – 2A/1A Variable Output

Datasheet
White LED Driver
With PWM Brightness Control
for up to 11 LEDs in Series
BD60A00NUX
BD60A60NUX
●General Description
This IC is boost DC/DC converter that can drive white
LED with constant current. More stabled white LED
lighting can be achieved by direct current connection
without electric tolerance and High-speed response by
current mode. Moreover, separating IC power supply
(2.7V to 5.5V) and coil power supply (2.3V to 20V)
makes it possible to widen input range, which will be
helpful to be applied to various kinds of applications.
Over voltage setting can be selected corresponding to
the number of LED lightings. BD60A00NUX is for max
11 lightings, BD60A60NUX is for max 6 lightings.
●Key Specifications
 Operating power supply voltage range: 2.7V to 5.5V
 LED maximum current:
30mA (Max.)
 Switching Frequency:
600kHz(Typ.)
 Quiescent Current:
0.1μA (Typ.)
 Operating temperature range:
-40˚C to +85˚C
●Package W(Typ.) x D(Typ.) x H(Max.)
●Features
 Boost DC/DC converter
 Drive LED 11 lightings
(VOUT=3.6V×11+0.7V=40.3V <VF MAX=3.7V>)
BD60A00NUX
 Brightness control by outside PWM signal (PWM
frequency =100Hz to 30kHz, 25kHz 1% dimming
application)
 Brightness control by DC input
 Soft start function (1ms Typ.)
 Over voltage protection
BD60A00NUX:
42V (Typ.)
BD60A60NUX:
28V (Typ.)
 SBD open protection and output short protection
 Over current protection
 LED terminal over voltage protection
 UVLO
VSON008X2030
2.00mm x 3.00mm x 0.60mm
●Applications
Digital video cameras, digital single-lens reflexes,
digital still cameras, digital photo frames, personal
navigations (PND), mobile phones, smart phones, MID,
PDA, hand-held computers, MP3 players, GPS, digital
media players, etc.
●Typical Application Circuit
Coil Power
2.3V to 20V
Ccoil
4.7μF
L1
10μH
SW
IC Power
2.7V to 5.5V
VIN
CIN
1μF
COUT
D1
2.2μF
VOUT
BD60AxxNUX
11 LEDs
FB
ISET
GND
EN ^PWM
Enable control PWM control
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed protection against radioactive rays
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TSZ02201-0G3G0C200320-1-2
27.SEP.2012 Rev.001