ROHM BD6184GUL Technical data
A
System LED Drivers for Mobile Phones
8 LEDs
LDO 4ch
BD6184GUL
●Description
BD6184GUL is “Intelligent LED Driver” that is the most suitable for the cellular phone.
~ 8LED driver and output variable LDO4ch for LCD Backlight.
It has 3
It can be developed widely from the High End model to the Low End model.
As it has charge pump circuit for LED power supply, it is no need to use coils, and it contributes to small space.
VCSP50L3 (3.15mm x 3.10mm 0.5mm pitch)
It adopts the very thin CSP package that is the most suitable for the slim phone.
●Features
1) Total 3 ~ 8LEDs driver for LCD Backlight
・It has 4LEDs (it can select 4LED or 3LED) for exclusire use of Main and 4LEDs which can chose independent control
or a main allotment by resister setting.
・“Main Group” can be controlled by external PWM signal.
・ON/ Off and a setup of LED current are possible at the time of the independent control by the independence.
2) Charge Pump DC/DC for LED driver
・It has x1/x1.5/ x2 mode that will be selected automatically.
・The most suitable voltage up magnification is controlled automatically by LED port voltage.
・Soft start functions,Over voltage protection (Auto-return type),Over current protection (Auto-return type) loading
3) 4ch Low Drop Out Series Regulator (LDO)
・It has 16 steps selectable output voltage by the register.
LDO1, LDO2, LDO3, LDO4: Iomax=150mA
4) Thermal shutdown
2
5) I
●Absolute Maximum Ratings (Ta=25℃)
Maximum Voltage VMAX 7 V
Power Dissipation Pd 1430
Operating Temperature Range Topr -30 ~ +85 ℃
Storage Temperature Range Tstg -55 ~ +150 ℃
●Operating Conditions (VBAT≥VIO, Ta=-30 ~ 85 ℃)
VBAT Input Voltage VBAT 2.7 ~ 5.5 V
VIO Pin Voltage VIO 1.65 ~ 3.3 V
C BUS FS mode (max 400 kHz) Compatibility
Parameter Symbol Ratings Unit
note) Power dissipation deleting is 11.44mW/ ℃, when it’s used in over 25 ℃.
(It’s deleting is on the board that is ROHM’s standard)
Parameter Symbol Limits Unit
note)
mW
No.10041EAT10
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/37
2010.07 - Rev.
A
BD6184GUL
●Electrical Characteristics (Unless otherwise specified, Ta=25℃, VBAT=3.6V, VIO=1.8V)
Parameter Symbol
Min. Typ. Max.
Limits
Unit Conditions
【Circuit Current】
VBAT Circuit Current 1 IBAT1 - 0.1 3.0 μA RESETB=0V, VIO= 0V
VBAT Circuit Current 2 IBAT2 - 0.5 3.0 μA RESETB=0V, VIO=1.8V
Technical Note
VBAT Circuit Current 3 IBAT3 - 61 65 mA
VBAT Circuit Current 4 IBAT4 - 92 102 mA
VBAT Circuit Current 5 IBAT5 - 123 140 mA
DC/DC x1 mode, Io=60mA
VBAT=4.0V
DC/DC x1.5 mode, Io=60mA
VBAT=3.6V
DC/DC x2 mode, Io=60mA
VBAT=2.7V
VBAT Circuit Current 6 IBAT6 - 90 150 μA LDO1,2=ON, I
VBAT Circuit Current 7 IBAT7 - 90 150 μA LDO3,4=ON, I
【LED Driver】
LED Current Step (Setup) ILEDSTP1 128 Step LED1 ~ 8
LED Current Step (At slope) ILEDSTP2 256 Step LED1 ~ 8
LED Maximum Setup Current IMAXWLED - 25.6 - mA LED1 ~ 8
LED Current Accuracy IWLED -7% 15 +7% mA I
LED Current Matching ILEDMT - - 4 %
=15mA setting, VLED=1.0V
LED
Between LED1 ~ 8 at VLED=1.0V,
ILED=15mA
LED OFF Leak Current ILKLED - - 1.0 μA VLED=4.5V
LDO
LDO
=0mA
=0mA
【DC/DC(Charge Pump)】
Output Voltage VoCP - Vf+0.2 Vf+0.25 V Vf is forward direction of LED
Drive Ability IOUT - - 200 mA VBAT≥3.2V, VOUT=3.9V
Switching Frequency fosc 0.8 1.0 1.2 MHz -
Over Voltage Protection
Detect Voltage
Over Current Protection
Detect Current
OVP - 5.6 - V -
OCP - 250 375 mA VOUT=0V
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2/37
2010.07 - Rev.
A
BD6184GUL
●Electrical Characteristics (Unless otherwise specified, Ta=25℃, VBAT=3.6V, VIO=1.8V)
Parameter Symbol
【Regulator (LDO1)】
Output Voltage Vo1
Output Current Io1 - - 150 mA Vo=1.8V
Dropout Voltage Vsat1 - 0.2 0.3 V VBAT=2.5V, Io=150mA, Vo=2.8V
Load Stability ΔVo11 - 10 60 mV Io=1 ~ 150mA, Vo=1.8V
Input Voltage Stability ΔVo12 - 10 60 mV VBAT=3.4 ~ 4.5V, Io=50mA, Vo=1.8V
Ripple Rejection Ratio RR1 - 65 - dB
Short Circuit Current Limit Ilim1 - 200 400 mA Vo=0V
Discharge Resister at OFF ROFF1 - 1.0 1.5 kΩ -
【Regulator (LDO2)】
Output Voltage Vo2
Output Current Io2 - - 150 mA Vo=2.5V
Dropout Voltage Vsat2 - 0.2 0.3 V VBAT=2.5V, Io=150mA, Vo=2.8V
Load Stability ΔVo21 - 10 60 mV Io=1 ~ 150mA, Vo=2.5V
Input Voltage Stability ΔVo22 - 10 60 mV VBAT=3.4 ~ 4.5V, Io=50mA, Vo=2.5V
Ripple Rejection Ratio RR2 - 65 - dB
Short Circuit Current Limit Ilim2 - 200 400 mA Vo=0V
Discharge Resister at OFF ROFF2 - 1.0 1.5 kΩ -
Min. Typ. Max.
1.164 1.20 1.236 V Io=50mA
1.261 1.30 1.339 V Io=50mA
1.455 1.50 1.545 V Io=50mA
1.552 1.60 1.648 V Io=50mA
1.746 1.80 1.854 V Io=50mA <Initial Voltage>
2.134 2.20 2.266 V Io=50mA
2.328 2.40 2.472 V Io=50mA
2.425 2.50 2.575 V Io=50mA
2.522 2.60 2.678 V Io=50mA
2.619 2.70 2.781 V Io=50mA
2.716 2.80 2.884 V Io=50mA
2.813 2.90 2.987 V Io=50mA
2.910 3.00 3.090 V Io=50mA
3.007 3.10 3.193 V Io=50mA
3.104 3.20 3.296 V Io=50mA
3.201 3.30 3.399 V Io=50mA
1.164 1.20 1.236 V Io=50mA
1.261 1.30 1.339 V Io=50mA
1.455 1.50 1.545 V Io=50mA
1.552 1.60 1.648 V Io=50mA
1.746 1.80 1.854 V Io=50mA
2.134 2.20 2.266 V Io=50mA
2.328 2.40 2.472 V Io=50mA
2.425 2.50 2.575 V Io=50mA <Initial Voltage>
2.522 2.60 2.678 V Io=50mA
2.619 2.70 2.781 V Io=50mA
2.716 2.80 2.884 V Io=50mA
2.813 2.90 2.987 V Io=50mA
2.910 3.00 3.090 V Io=50mA
3.007 3.10 3.193 V Io=50mA
3.104 3.20 3.296 V Io=50mA
3.201 3.30 3.399 V Io=50mA
Limits
Unit Conditions
f=100Hz, Vin=200mVp-p, Vo=1.2V
Io=50mA, BW=20Hz ~ 20kHz
f=100Hz, Vin=200mVp-p, Vo=1.2V
Io=50mA, BW=20Hz ~ 20kHz
Technical Note
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
3/37
2010.07 - Rev.
A
BD6184GUL
●Electrical Characteristics (Unless otherwise specified, Ta=25℃, VBAT=3.6V, VIO=1.8V)
Parameter Symbol
【Regulator (LDO3)】
Output Voltage Vo3
Output Current Io3 - - 150 mA Vo=1.8V
Dropout Voltage Vsat3 - 0.2 0.3 V VBAT=2.5V, Io=150mA, Vo=2.8V
Load Stability ΔVo31 - 10 60 mV Io=1 ~ 150mA, Vo=1.8V
Input Voltage Stability ΔVo32 - 10 60 mV VBAT=3.4 ~ 4.5V, Io=50mA, Vo=1.8V
Ripple Rejection Ratio RR3 - 65 - dB
Short Circuit Current Limit Ilim3 - 200 400 mA Vo=0V
Discharge Resister at OFF ROFF3 - 1.0 1.5 kΩ -
【Regulator (LDO4)】
Output Voltage Vo4
Output Current Io4 - - 150 mA Vo=2.8V
Dropout Voltage Vsat4 - 0.2 0.3 V VBAT=2.5V, Io=150mA, Vo=2.8V
Load Stability ΔVo41 - 10 60 mV Io=1 ~ 150mA, Vo=2.8V
Input Voltage Stability ΔVo42 - 10 60 mV VBAT=3.4 ~ 4.5V, Io=50mA, Vo=2.8V
Ripple Rejection Ratio RR4 - 65 - dB
Short Circuit Current Limit Ilim4 - 200 400 mA Vo=0V
Discharge Resister at OFF ROFF4 - 1.0 1.5 kΩ -
Min. Typ. Max.
1.164 1.20 1.236 V Io=50mA
1.261 1.30 1.339 V Io=50mA
1.455 1.50 1.545 V Io=50mA
1.552 1.60 1.648 V Io=50mA
1.746 1.80 1.854 V Io=50mA <Initial Voltage>
2.134 2.20 2.266 V Io=50mA
2.328 2.40 2.472 V Io=50mA
2.425 2.50 2.575 V Io=50mA
2.522 2.60 2.678 V Io=50mA
2.619 2.70 2.781 V Io=50mA
2.716 2.80 2.884 V Io=50mA
2.813 2.90 2.987 V Io=50mA
2.910 3.00 3.090 V Io=50mA
3.007 3.10 3.193 V Io=50mA
3.104 3.20 3.296 V Io=50mA
3.201 3.30 3.399 V Io=50mA
1.164 1.20 1.236 V Io=50mA
1.261 1.30 1.339 V Io=50mA
1.455 1.50 1.545 V Io=50mA
1.552 1.60 1.648 V Io=50mA
1.746 1.80 1.854 V Io=50mA
2.134 2.20 2.266 V Io=50mA
2.328 2.40 2.472 V Io=50mA
2.425 2.50 2.575 V Io=50mA
2.522 2.60 2.678 V Io=50mA
2.619 2.70 2.781 V Io=50mA
2.716 2.80 2.884 V Io=50mA <Initial Voltage>
2.813 2.90 2.987 V Io=50mA
2.910 3.00 3.090 V Io=50mA
3.007 3.10 3.193 V Io=50mA
3.104 3.20 3.296 V Io=50mA
3.201 3.30 3.399 V Io=50mA
Limits
Unit Conditions
f=100Hz, Vin=200mVp-p, Vo=1.2V
Io=50mA, BW=20Hz ~ 20kHz
f=100Hz, Vin=200mVp-p, Vo=1.2V
Io=50mA, BW=20Hz ~ 20kHz
Technical Note
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
4/37
2010.07 - Rev.
A
BD6184GUL
●Electrical Characteristics (Unless otherwise specified, Ta=25℃, VBAT=3.6V, VIO=1.8V)
Parameter Symbol
Min. Typ. Max.
Limits
Unit Condition
【SDA, SCL】(I2C Interface)
L level Input Voltage VILI -0.3 - 0.25×VIO V -
H level Input Voltage VIHI 0.75×VIO - VBAT+0.3 V -
Technical Note
Hysteresis of
Schmitt trigger Input
VhysI 0.05×VIO - - V -
L Level Output Voltage VOLI 0 - 0.3 V SDA Pin, IOL=3 mA
Input Current linI - - 1 μA Input Voltage= 0.1×VIO ~ 0.9×VIO
【RESETB】(CMOS Input Pin)
L Level Input Voltage VILR -0.3 - 0.25×VIO V
H Level Input Voltage VIHR 0.75×VIO - VBAT+0.3 V
Input Current IinR - - 1 μA Input Voltage = 0.1×VIO ~ 0.9×VIO
【WPWMIN】(NMOS Input Pin)
L Level Input Voltage VILA -0.3 - 0.3 V -
H level Input Voltage VIHA 1.4 - VBAT+0.3 V -
Input Current IinA - 3.6 10
PWM Input Minimum
High Pulse Width
PWmin 250 - -
Input Voltage = 1.8V
μA
WPWMIN Pin
μs
●Power Dissipation (On the ROHM’s standard board)
1.6
1.4
1430mW
1.2
W)
（
1.0
0.8
0.6
Power Dissipation Pd
0.4
0.2
0.0
0 25 50 75 100 125 150
Information of the ROHM’s standard board
Material : glass-epoxy
Size : 50mm×58mm×1.75mm(8
Wiring pattern figure Refer to after page.
Ta(℃)
Fig.1 Power Dissipation
th
layer)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/37
2010.07 - Rev.
A
BD6184GUL
A
( )
( )
●Block Diagram / Application Circuit Example 1
1μF/10V
1μF/10V
C1P
C1N
C2P
C2N
CPGND
VBAT
VBATCP
VBAT1
Charge Pump
x1 / x1.5 / x2
2.2µF/10V
Charge Pump
Mode Control
VIO
RESETB
SCL
I2C interface
SD
WPWMIN
I/O
Level
Shift
Digital Control
OVP
LED terminal voltage feedback
TSD
IREF
GND1
GND2
VREF
LDO1
Vo selectable
Io=150mA
LDO2
Vo sele ctable
Io=150mA
LDO3
Vo selectable
Io=150mA
LDO4
Vo selectable
Io=150mA
NC1
NC2
NC3
T2
T4
T3
T1
(Open)
(Open)
Fig.2 Block Diagram / Application Circuit Example 1
VOUT
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
LEDGND
LDO1O
LDO2O
LDO3O
LDO4O
1μF/6.3V
1μF/6.3V
1μF/6.3V
1μF/6.3V
Technical Note
1μF/10V
8LED
Main Back Light
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
6/37
2010.07 - Rev.
A
BD6184GUL
A
( ) ( )
●Block Diagram / Application Circuit Example 2
VBAT
VBATCP
VBAT1
2.2µF/10V
Charge Pump
Mode Control
VIO
RESETB
SCL
SD
WPWMIN
I/O
Level
Shift
I2C interface
Digital Control
GND1
GND2
NC1
NC2
NC3
Fig.3 Block Diagram / Application Circuit Example 2
1μF/10V
C1N
1μF/10V
C1P
C2P
C2N
Charge Pump
x1 / x1.5 / x2
OVP
LED terminal voltage feedback
TSD
IREF
VREF
T4
T3
T1
T2
(Open)
(Open)
Technical Note
CPGND
VOUT
1μF/10V
LED1
LED2
LED3
LDO1
Vo selectable
Io=150mA
LDO2
Vo selectable
Io=150mA
LDO3
Vo selectable
Io=150mA
LDO4
Vo selectable
Io=150mA
LED4
LED5
LED6
LED7
LED8
LEDGND
LDO1O
LDO2O
LDO3O
LDO4O
1μF/6.3V
1μF/6.3V
1μF/6.3V
1μF/6.3V
7LED
Main Back Light
1LED
Sub Back Light
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
7/37
2010.07 - Rev.
A
BD6184GUL
A
( ) ( )
●Block Diagram / Application Circuit Example 3
VBAT
VBATCP
VBAT1
2.2µF/10V
Charge Pump
Mode Control
VIO
RESETB
SCL
SD
WPWMIN
I/O
Level
Shift
I2C interface
Digital Control
GND1
GND2
NC1
NC2
NC3
Fig.4 Block Diagram / Application Circuit Example 3
1µF/10V
C1N
1µF/10V
C1P
C2P
C2N
Charge Pump
x1 / x1.5 / x2
OVP
LED terminal voltage feedback
TSD
IREF
VREF
T4
T3
T1
T2
(Open)
(Open)
Technical Note
CPGND
VOUT
1µF/10V
LED1
LED2
4LED
Main Back Light
1LED
Sub Back Light
3LED
RGB Illumination
LDO1
Vo selectable
Io=150mA
LDO2
Vo selectable
Io=150mA
LDO3
Vo selectable
Io=150mA
LDO4
Vo selectable
Io=150mA
LED3
LED4
LED5
LED6
LED7
LED8
LEDGND
LDO1O
LDO2O
LDO3O
LDO4O
1μF/6.3V
1μF/6.3V
1μF/6.3V
1μF/6.3V
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
8/37
2010.07 - Rev.
A
BD6184GUL
●Pin Arrangement ［Bottom View］
Technical Note
F
E
D
C
B
A
T4 LDO4O LDO3O LDO2O LDO1O T3
LED7 LED8 GND2 VBAT1 VIO SCL
LED6 LEDGND NC2 NC3 SDA VOUT
Index
LED5 LED4
LED3 LED２ GND1 RESETB C2N VBATCP
T1 LED1 WPWMIN C1N CPGND T2
NC1 C1P C2P
1 2 3 4 5 6
Total 35 Ball
Fig.5 Pin Arrangement
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
9/37
2010.07 - Rev.
A
BD6184GUL
●Package Outline
VCSP50L3 CSP small package
SIZE : 3.15mm x 3.10mm(A difference in public:X,Y Both ±0.05mm)
Height : 0.55mm max
A ball pitch : 0.5 mm
(φ0.15)INDEX POST
1PIN MARK
35-φ0.25±0.05
A0.05 B
0.325±0.05
BD6184
3.15±0.05
S0.06
A
F
E
D
C
B
A
1234
Fig.6 Package Outline
P=0.5×5
5
6
Lot No.
0.1±0.05
B
3.1±0.05
0.55MAX
0.3±0.05
P=0.5×5
Technical Note
S
(Unit: mm)
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
10/37
2010.07 - Rev.
A
BD6184GUL
●Pin Functions
No Ball No. Pin Name I/O
1 B6 VBATCP - - GND Battery is connected A
2 E4 VBAT1 - - GND Battery is connected A
3 A1 T1 O VBAT GND Test Output Pin (Open) N
4 A6 T2 I VBAT GND Test Input Pin (short to Ground) S
5 F6 T3 O VBAT GND Test Output Pin(Open) M
6 F1 T4 I VBAT GND Test Input Pin (short to Ground) S
7 E5 VIO - VBAT GND I/O Power supply is connected C
8 D5 SDA I/O VBAT GND I2C data input / output I
9 E6 SCL I VBAT GND I2C clock input H
10 A5 CPGND - VBAT - Ground B
11 B4 RESETB I VBAT GND Reset Input (L:Reset, H:Reset Cancel) H
12 D2 LEDGND - VBAT - Ground B
13 A4 C1N I/O VBAT GND Charge Pump capacitor is connected F
14 C5 C1P I/O - GND Charge Pump capacitor is connected G
15 B5 C2N I/O VBAT GND Charge Pump capacitor is connected F
16 C6 C2P I/O - GND Charge Pump capacitor is connected G
17 D6 VOUT O - GND Charge Pump output pin A
18 A2 LED1 I - GND LED is connected 1 for LCD Back Light E
19 B2 LED2 I - GND LED is connected 2 for LCD Back Light E
20 B1 LED3 I - GND LED is connected 3 for LCD Back Light E
21 C2 LED4 I - GND LED is connected 4 for LCD Back Light E
22 C1 LED5 I - GND LED is connected 5 for LCD Back Light E
23 D1 LED6 I - GND LED is connected 6 for LCD Back Light E
24 E1 LED7 I - GND LED is connected 7 for LCD Back Light E
25 E2 LED8 I - GND LED is connected 8 for LCD Back Light E
26 C4 NC1 - - - (Non connect) -
27 D3 NC2 - - - (Non connect) -
28 D4 NC3 - - - (Non connect) -
29 B3 GND1 - VBAT - Ground B
30 E3 GND2 - VBAT - Ground B
31 A3 WPWMIN I VBAT GND External PWM input for Back Light * L
32 F5 LDO1O O VBAT GND LDO1 output pin Q
33 F4 LDO2O O VBAT GND LDO2 output pin Q
34 F3 LDO3O O VBAT GND LDO3 output pin Q
35 F2 LDO4O O VBAT GND LDO4 output pin Q
* A setup of a register is separately necessary to make it effective.
ESD Diode
For Power For Ground
Functions
Technical Note
Equivalent
Circuit
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
11/37
2010.07 - Rev.
A
BD6184GUL
●Equivalent Circuit
A
B E
VBAT
C
VBAT
Technical Note
F
VBAT
J
Q
VBAT VBAT
G
VIO VBAT
R
VBATVBAT L
VBATVBAT
H
M
VBAT VBAT
S
VIOVBAT
VBATVBAT
I
N
U
VIOVBAT
VBAT
VBAT VBAT V
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
VBAT W
VIO
Fig.7 Equivalent Circuit
X
VoS VBAT
12/37
Y
VIO VBAT
2010.07 - Rev.
Loading...