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Datasheet
7-Channel Multi-Display LED Driver
with Four Integrated LDOs and Flash
BD6085GUL
● General Description
The grouping of LED is independently controlled
BD6085GUL is Multi-Function LED Driver that is the
most suitable for the cellular phone.
It has many functions that are needed to "the upper
side" of the cellular phone.
● Features
?
by register.
4ch Series Regulator (LDO)
It has selectable output voltage by the register.
LDO1,LDO2 : Iomax=200mA
LDO3,LDO4 : Iomax=150mA
Charge Pump DC/DC for LED driver
?
Total 7LEDs driver for LCD Backlight (Main/Sub) and
LED Flash
It can set maximum 30mA by 32 steps (Current DAC)
for Main/Sub Display
It can set maximum 360mA for Flash LED driver
(It has 3 channels LED driver at maximum
120mA/ch for Flash.)
?
?
It has x1/x1.33/x1.5/x2 mode that will be selected
automatically.
Soft start functions
Over voltage protection (Auto-return type)
Over current protection (Auto-return type)
Thermal shutdown (Auto-return type)
I 2 C BUS FS mode(max 400kHz)Write/Read
The number of lighting for Main/Sub/Flash LED
can be set up grouping by register.
Ex. ) 4LEDs / 0LED / 3LEDs
4LEDs / 1LED / 2LEDs
● Key Specifications
? Operating power supply voltage range: 2.7V to 5.5V
? LED Maximum setup current
4LEDs / 2LEDs / 1LED
Normal mode (LED1 to 7):
30mA (Typ.)
4LEDs / 1LED / 1LED
5LEDs / 1LED / 1LED
5LEDs / 0LED / 2LEDs
6LEDs / 0LED / 1LED
Flash mode (LED5 to 7): 120mA (Typ.)
? Oscillator frequency: 0.9MHz(Typ.)
? Operating temperature range: -35 ℃ to +85 ℃
It can use the 1LED Flash module to 3LED
Flash module.
Normal mode = maximum 30mA/ch,
Flash mode = x4 normal mode (for 3ch LED).
● Package
VCSP50L3:
W(Typ.) x D(Typ.) x H(Max.)
3.30mm x 3.30mm x 0.55mm
● Typical Application Circuit
Back Light (4ch) + Flash (total 360mA)
● Pin Configuration [Bottom View]
1 μ F (6.3V)
1 μ F (6.3V) 1 μ F (6.3V)
VOUT
VBAT
VBATCP
VBAT1
LED1~4
2.2 μ F
(6.3V)
VBAT2
VB ATLD O1
VB ATLDO2
Back Light
10μF
LED5
VIO
BD6085GUL
LED6
Flash
LED7
RESETB
LDO1O
SCL
SDA
○ Product structure ： Silicon monolithic integrated circuit
1 μ F
LDO2O
1 μ F
LDO3O
1 μ F
LDO4O
1 μ F
○ This product is not designed protection against radioactive rays
www.rohm.com
? 2012 ROHM Co., Ltd. All rights reserved .
TSZ22111 ? 14 ? 001
1/26
TSZ02201-0G3G0C200120-1-2
05.Oct.2012 Rev.001
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