Datasheet
7-Channel Multi-Display LED Driver
with Four Integrated LDOs and Flash
BD6085GUL
●General
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
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).
●Typical
Application Circuit
Back Light (4ch) + Flash (total 360mA)
1μF (6.3V)
1μF (6.3V) 1μF (6.3V)
The grouping of LED is independently controlled
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
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
●Key
Specifications
Operating power supply voltage range: 2.7V to 5.5V
LED Maximum setup current
Normal mode (LED1 to 7):
30mA (Typ.)
Flash mode (LED5 to 7):
120mA (Typ.)
Oscillator frequency:
0.9MHz(Typ.)
Operating temperature range:
-35℃ to +85℃
●Package
VCSP50L3:
W(Typ.) x D(Typ.) x H(Max.)
3.30mm x 3.30mm x 0.55mm
●Pin
Configuration [Bottom View]
C2N
C1N
C3P
C1P
C2P
C3N
VOUT
VBAT
VBATCP
VBAT1
VBAT2
VB ATLD O1
VB ATLDO2
LED1~4
2.2μF
(6.3V)
Back Light
10µF
LED5
BD6085GUL
VIO
RESETB
LED6
LED7
Flash
LDO1O
SCL
SDA
1μF
LDO2O
1μF
LDO3O
1μF
LDO4O
1μF
FLGND
CPGND
WGND
AGND
T1
T2
T3
(Open)
○Product
structure：Silicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½14½001
T4
(Open)
○This
product is not designed protection against radioactive rays
1/26
TSZ02201-0G3G0C200120-1-2
05.Oct.2012 Rev.001
BD6085GUL
●Absolute
Maximum Ratings
(Ta=25
℃)
Parameter
Maximum voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Symbol
VMAX
Pd
Topr
Tstg
Ratings
7
1325
-35 to +85
-55 to +150
Unit
V
mW
℃
℃
Datasheet
(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)
●Recommended
Operating Ratings
(VBAT≥VIO, Ta=-35 to 85
℃)
Parameter
VBAT input voltage
VIO pin voltage
Symbol
VBAT
VIO
Ratings
2.7 to 5.5
1.65 to 3.3
Unit
V
V
●Electrical
Characteristics
(Unless otherwise specified, Ta=25°C, VBAT=3.6V, VIO=1.8V)
Limits
Parameter
Symbol
Min.
Typ.
【Circuit
Current】
VBAT Circuit current 1
VBAT Circuit current 2
VBAT Circuit current 3
VBAT Circuit current 4
VBAT Circuit current 5
VBAT Circuit current 6
VBAT Circuit current 7
VBAT Circuit current 8
VBAT Circuit current 9
【LED
Driver】
LED current Step
White LED Maximum setup
current
Flash LED Maximum setup
current
White LED current accuracy
Flash LED current accuracy
LED current Matching
Flash / Normal current ratio
LED OFF Leak current
【DC/DC(Charge
Pump)】
Maximum Output voltage
Current Load
Oscillator frequency
Over Voltage Protection detect
voltage
Short Circuit current limit
VoCP
IOUT
fosc
OVP
Ilim
4.65
-
0.72
5.0
-
5.1
-
0.9
5.5
250
ILEDSTP
IMAXWLED
IMAXFLED
IWLED
IFLED
ILEDMT
RATFL
ILKLED
-
-
-7%
-
-
3.2
-
32
30
120
15
60
-
4
-
IBAT1
IBAT2
IBAT3
IBAT4
IBAT5
IBAT6
IBAT7
IBAT8
IBAT9
-
-
-
-
-
-
-
-
-
0.1
0.5
90
90
390
61
84
94
128
Max.
1.0
3.0
150
150
600
65
94
104
136
Unit
Condition
μA
μA
μA
μA
μA
mA
mA
mA
mA
RESETB=0V, VIO=0V
RESETB=0V, VIO=1.8V
LDO1=LDO2=ON, I
LDO
=0mA
Other blocks=OFF
LDO3=LDO4=ON, I
LDO
=0mA
Other blocks=OFF
LDO1=LDO2=ON, I
LDO
=0mA
DC/DC x1mode,
I
LED
=2.8125(30x3/32)mA x 4ch
DC/DC x1mode, I
LED
=60mA
VBAT=3.7V, LED Vf=3.0V
DC/DC x1.33mode, I
LED
=60mA
VBAT=3.1V, LED Vf=3.0V
DC/DC x1.5 mode, I
LED
=60mA
VBAT=2.9V, LED Vf=3.5V
DC/DC x2 mode, I
LED
=60mA
VBAT=2.9V, LED Vf=4.0V
LED1 to 7
LED1 to 7 (Normal mode)
LED5 to 7 (Flash mode)
I
LED
=15mA setting (Normal mode)
At VLED=1.0V
I
LED
=60mA setting (Flash mode)
At VLED=1.0V
Between LED1 to 7 at VLED=1.0V
LED5 to 7, Flash mode/Normal mode
At VLED=1.0V
VLED=4.5V
Step
-
-
+7%
-
4
4.8
1.0
5.55
480
1.08
6.0
500
mA
mA
mA
mA
%
A/A
μA
V
mA
MHz
V
mA
VBAT≥3.2V, VOUT=4V
VOUT=0V
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
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TSZ02201-0G3G0C200120-1-2
05.Oct.2012 Rev.001
BD6085GUL
●Electrical
Characteristics - continued(Unless
otherwise specified, Ta=25°C, VBAT=3.6V, VIO=1.8V)
Limits
Parameter
Symbol
Unit
Condition
Min.
Typ.
Max.
【I
C Input (SDA, SCL)】
LOW level input voltage
HIGH level input voltage
Hysteresis of Schmitt trigger
input
LOW level output voltage
(SDA) at 3mA sink current
Input current each I/O pin
【RESETB】
LOW level input voltage
HIGH level input voltage
Input current each I/O pin
【Regulator
(LDO1)】
1.164
1.261
1.455
1.552
1.746
2.134
2.328
2.425
2.522
2.619
2.716
2.813
2.910
3.007
3.104
3.201
-
-
-
-
-
-
-
1.20
1.30
1.50
1.60
1.80
2.20
2.40
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
-
0.2
10
10
65
250
1.0
1.236
1.339
1.545
1.648
1.854
2.266
2.472
2.575
2.678
2.781
2.884
2.987
3.090
3.193
3.296
3.399
200
0.3
60
60
-
500
1.5
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
mA
V
mV
mV
dB
mA
kΩ
VIL
VIH
Iin
-0.3
0.75 ×
VIO
-3
-
-
-
0.25 ×
VIO
VBAT
+0.3
3
V
V
μA
VIL
VIH
Vhys
VOL
lin
-0.3
0.75 ×
VIO
0.05 ×
VIO
0
-3
-
-
-
-
-
0.25 ×
VIO
VBAT
+0.3
-
0.3
3
V
V
V
V
μA
2
Datasheet
Input voltage = 0.1×VIO to 0.9×VIO
Input voltage = 0.1×VIO to 0.9×VIO
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA <Initial Voltage>
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Vo=1.8V
VBAT=2.5V, Io=200mA, Vo=2.8V
Io=1 to 200mA, Vo=1.8V
VBAT=3.4 to 4.5V, Io=50mA, Vo=1.8V
f=100Hz, Vin=200mVp-p, Vo=1.2V
Io=50mA, BW=20Hz to 20kHz
Vo=0V
Output voltage
Vo1
Output Current
Dropout Voltage
Load stability
Input voltage stability
Ripple Rejection Ratio
Short circuit current limit
Discharge resistor at OFF
Io1
Vsat1
ΔVo11
ΔVo12
RR1
Ilim1
ROFF1
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
3/26
TSZ02201-0G3G0C200120-1-2
05.Oct.2012 Rev.001
BD6085GUL
●Electrical
Characteristics - continued(Unless
otherwise specified, Ta=25°C, VBAT=3.6V, VIO=1.8V)
Limits
Parameter
Symbol
Unit
Condition
Min.
Typ.
Max.
【Regulator
(LDO2)】
1.164
1.261
1.455
1.552
1.746
2.134
2.328
2.425
2.522
2.619
2.716
2.813
2.910
3.007
3.104
3.201
-
-
-
-
-
-
-
1.164
1.261
1.455
1.552
1.746
2.134
2.328
2.425
2.522
2.619
2.716
2.813
2.910
3.007
3.104
3.201
-
-
-
-
-
-
-
1.20
1.30
1.50
1.60
1.80
2.20
2.40
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
-
0.2
10
10
65
250
1.0
1.20
1.30
1.50
1.60
1.80
2.20
2.40
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
-
0.2
10
10
65
200
1.0
1.236
1.339
1.545
1.648
1.854
2.266
2.472
2.575
2.678
2.781
2.884
2.987
3.090
3.193
3.296
3.399
200
0.3
60
60
-
500
1.5
1.236
1.339
1.545
1.648
1.854
2.266
2.472
2.575
2.678
2.781
2.884
2.987
3.090
3.193
3.296
3.399
150
0.3
60
60
-
400
1.5
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
mA
V
mV
mV
dB
mA
kΩ
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
mA
V
mV
mV
dB
mA
kΩ
Datasheet
Output voltage
Vo2
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA <Initial Voltage>
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Vo=2.5V
VBAT=2.5V, Io=200mA, Vo=2.8V
Io=1 to 200mA, Vo=2.5V
VBAT=3.4 to 4.5V, Io=50mA, Vo=2.5V
f=100Hz, Vin=200mVp-p, Vo=1.2V
Io=50mA, BW=20Hz to 20kHz
Vo=0V
Output Current
Dropout Voltage
Load stability
Input voltage stability
Ripple Rejection Ratio
Short circuit current limit
Discharge resistor at OFF
【Regulator
(LDO3)】
Io2
Vsat2
Δvo21
Δvo22
RR2
Ilim2
ROFF2
Output voltage
Vo3
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA <Initial Voltage>
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Vo=1.8V
VBAT=2.5V, Io=150mA, Vo=2.8V
Io=1 to 150mA, Vo=1.8V
VBAT=3.4 to 4.5V, Io=50mA, Vo=1.8V
f=100Hz, Vin=200mVp-p, Vo=1.2V
Io=50mA, BW=20Hz to 20kHz
Vo=0V
Output Current
Dropout Voltage
Load stability
Input voltage stability
Ripple Rejection Ratio
Short circuit current limit
Discharge resistor at OFF
Io3
Vsat3
Δvo31
Δvo32
RR3
Ilim3
ROFF3
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
4/26
TSZ02201-0G3G0C200120-1-2
05.Oct.2012 Rev.001
BD6085GUL
●Electrical
Characteristics - continued(Unless
otherwise specified, Ta=25°C, VBAT=3.6V, VIO=1.8V)
Limits
Parameter
Symbol
Unit
Condition
Min.
Typ.
Max.
【Regulator
(LDO4)】
1.164
1.261
1.455
1.552
1.746
2.134
2.328
2.425
2.522
2.619
2.716
2.813
2.910
3.007
3.104
3.201
-
-
-
-
-
-
-
1.20
1.30
1.50
1.60
1.80
2.20
2.40
2.50
2.60
2.70
2.80
2.90
3.00
3.10
3.20
3.30
-
0.2
10
10
65
200
1.0
1.236
1.339
1.545
1.648
1.854
2.266
2.472
2.575
2.678
2.781
2.884
2.987
3.090
3.193
3.296
3.399
150
0.3
60
60
-
400
1.5
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
mA
V
mV
mV
dB
mA
kΩ
Datasheet
Output voltage
Vo4
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA <Initial Voltage>
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Io=50mA
Vo=2.8V
VBAT=2.5V, Io=150mA, Vo=2.8V
Io=1 to 150mA, Vo=2.8V
VBAT=3.4 to 4.5V, Io=50mA, Vo=2.8V
f=100Hz, Vin=200mVp-p, Vo=1.2V
Io=50mA, BW=20Hz to 20kHz
Vo=0V
Output Current
Dropout Voltage
Load stability
Input voltage stability
Ripple Rejection Ratio
Short circuit current limit
Discharge resistor at OFF
Io4
Vsat4
Δvo41
Δvo42
RR4
Ilim4
ROFF4
(Unless otherwise specified, Ta=25
℃,
VBAT=3.6V, VIO=1.8V)
Parameter
【I
2
C BUS format】
SCL clock frequency
LOW period of the SCL clock
HIGH period of the SCL clock
Hold time (repeated) START condition
After this period, the first clock is generated
Symbol
Standard-mode
Min.
Typ.
Max.
0
4.7
4.0
4.0
4.7
0
250
4.0
4.7
-
-
-
-
-
-
-
-
-
100
-
-
-
-
3.45
-
-
-
Min.
0
1.3
0.6
0.6
0.6
0
100
0.6
1.3
Fast-mode
Typ.
-
-
-
-
-
-
-
-
-
Max.
400
-
-
-
-
0.9
-
-
-
Unit
f
SCL
t
LOW
t
HIGH
t
HD;STA
t
SU;STA
t
HD;DAT
t
SU;DAT
t
SU;STO
t
BUF
kHz
μs
μs
μs
μs
μs
ns
μs
μs
Set-up time for a repeated
condition
Data hold time
Data set-up time
Set-up time for STOP condition
Bus free time between a STOP
and START condition
START
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111½15½001
5/26
TSZ02201-0G3G0C200120-1-2
05.Oct.2012 Rev.001
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