BD6085GUL_11 Datasheet, PDF (1/29 Pages) Rohm – Multifunction Backlight LED Drivers for Small LCD Panels (Charge Pump Type)

LED Drivers for LCD Backlights
Multifunction Backlight LED Drivers
for Small LCD Panels (Charge Pump Type)
BD6085GUL
No.11040EAT28
●Description
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
1) 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.)
The number of lighting for Main/Sub/Flash LED can be set up grouping by register.
Ex. ) 4LEDs / 0LED / 3LEDs
4LEDs / 1LED / 2LEDs
4LEDs / 2LEDs / 1LED
4LEDs / 1LED / 1LED
5LEDs / 1LED / 1LED
5LEDs / 0LED / 2LEDs
6LEDs / 0LED / 1LED
It can use the 1LED Flash module to 3LED Flash module.
Normal mode = maximum 30mA/ch, Flash mode = x4 normal mode (for 3ch LED).
The grouping of LED is independently controlled by register.
2) 4ch Series Regulator (LDO)
It has selectable output voltage by the register.
LDO1,LDO2 : Iomax=200mA
LDO3,LDO4 : Iomax=150mA
3) Charge Pump DC/DC for LED driver
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)
4) Thermal shutdown (Auto-return type)
5) I²C BUS FS mode(max 400kHz)Write/Read
6) VCSP50L3(3.30mm×3.30mm, 0.55mm) Small and thin CSP package
*This chip is not designed to protect itself against radioactive rays.
*This material may be changed on its way to designing.
*This material is not the official specification.
●Absolute Maximum Ratings (Ta=25 ℃)
Parameter
Symbol
Ratings
Unit
Maximum voltage
VMAX
7
V
Power Dissipation
Pd
1325
mW
Operating Temperature Range
Topr
-35 ~ +85
℃
Storage Temperature Range
Tstg
-55 ~ +150
℃
note)Power dissipation deleting is 10.6mW/ ℃, when it’s used in over 25 ℃.
(It’s deleting is on the board that is ROHM’s standard)
●Operating conditions (VBAT≥VIO, Ta=-35~85 ℃)
Parameter
Symbol
Ratings
Unit
VBAT input voltage
VIO pin voltage
VBAT
2.7~5.5
V
VIO
1.65~3.3
V
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2011.04 - Rev.A