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BA00DD0WHFPTR bảng dữ liệu(PDF) 1 Page - Rohm

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Giải thích chi tiết về linh kiện  2A/1A Variable Output
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Product structure:Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
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Datasheet
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ22111・14・001
TSZ02201-0G3G0C200320-1-2
27.SEP.2012 Rev.001
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.
●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
●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.)
●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
VSON008X2030
2.00mm x 3.00mm x 0.60mm
L1
10μH
SW
EN
GND
FB
VIN
Ccoil
4.7μF
COUT
2.2μF
Coil Power
2.3V to 20V
D1
VOUT
CIN
1μF
11 LEDs
PWM
PWM control
IC Power
2.7V to 5.5V
ISET
Enable control
BD60AxxNUX


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