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Power Supply IC Series for TFT-LCD Panels
Gamma voltage generated IC
with built-in DAC
BD8149MUV
No.16035EBT17
Description
The feature of gamma voltage generated IC BD8149MUV provides a single-chip solution with a high-precision 10-bit DAC
setting controlled by I2C serial communications interface and a Buffer AMP (12ch). EEPROM auto-read function is also
incorporated.
Features
1) Single-chip design realizes fewer components
2) Built in 10bit DAC
3) Built in DAC output buffer amplifier (12ch)
4) Double Register synchronous switching function (SEL)
5) I2C interface (SDA, SCL)
STANDARD-MODE, FAST-MODE changeable
6) EEPROM auto-read function
7) Thermal Shut Down circuit
8) Under Voltage Lock Out circuit
9) Power ON Reset circuit
10) Input tolerant (SDA, SCL, EN, EN_AR, SEL)
11) VQFN032V5050 package
Applications
It may be used with TFT-LCD panels, such as big screen and high resolution LCD televisions.
Absolute Maximum Ratings (Ta=25)
PARAMETER
SYMBOL
RATING
UNIT
Power supply voltage1
VDD
4.5 V
Power supply voltage2
VCC
19 V
REFIN voltage
VREFIN
5V
DAC reference voltage
VDAC
7V
SEL, A0, A1, A2
Functional pin voltage
EN, SLAVE/AR
4.5
V
EN_AR
2-lines serial pin voltage
SDA, SCL
4.5
V
Junction voltage
Power dissipation
Tjmax
Pd
150
4560*1
mW
Operating temperature range
Topr
-25+85
Storage temperature range
Tstg
-55+150
*1 To use the IC at temperature over 25, derate power rating by 19.52mW /.
When mounted on a 4-layer glass epoxy board measuring 74.2 x 74.2 x 1.6mm.
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© 2016 ROHM Co., Ltd. All rights reserved.
1/17
2016.08 - Rev.B

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BD8149MUV
Operating conditions (Ta= -25℃~85)
PARAMETER
Power supply voltage1
Power supply voltage2
SYMBOL
VDD
VCC
REFIN voltage
VREFIN
DAC reference voltage
Functional pin voltage 1
Functional pin voltage 2
2-line serial pin voltage
AMP0
output current capability
AMP110
output current capability
AMP6
output current capability
AMP11
output current capability
2-line serial frequency
VDAC
SEL, EN,
EN_AR
A0, A1, A2
SLAVE/AR
SDA, SCL
I OA
I OB
I OC
I OD
FCLK
MIN MAX UNIT
2.1 3.6
V
10 18
V
2 3.5 V
2 3.56 V
2 3.62 V
2 3.68 V
2.1 4.5
V
-0.1 3.6
V
-0.1 VDD
V
-0.1 3.6
V
-40 - mA
-20 20 mA
-40 40 mA
- 40 mA
- 400 kHz
Technical Note
CONDITION
VCC=10V
VCC=11V
VCC=12V
VCC=13V
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© 2016 ROHM Co., Ltd. All rights reserved.
2/17
2016.08 - Rev.B

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BD8149MUV
Technical Note
Electrical Characteristics Unless otherwise specified, Ta=25, VDD=3.3V, VCC=15V, REFIN=3.5V
PARAMETER
SYMB
OL
MIN
LIMITS
TYP
MAX
UNIT
CONDITION
Gamma Amplifier
Sink current capability
(AMP0)
IooA
-
- -10 mA REG0=3FFh, OUT0=15V
Sink current capability
(AMP1~5, 7~10)
IooB
-
-
-30
mA
REG1~5, 7~10=1B5h
OUT1~5, 7~10=15V
Sink current capability
(AMP6)
IooC
-
- -60 mA REG6=1B5h, OUT6=15V
Sink current capability
(AMP11)
IooD
-
- -60 mA REG11=048h, OUT11=2V
Source current capability
(AMP0)
IoiA 60
-
- mA REG0=3FFh, OUT0=13V
Source current capability
(AMP1~5, 7~10)
IoiB 30
-
-
mA REG1~5, 7~10=1B5h
OUT1~5, 7~10=0V
Source current capability
(AMP6)
IoiC 60
-
- mA REG6=1B5h, OUT6=0V
Source current capability
(AMP11)
IoiD 10
-
- mA REG11=048h, OUT11=0V
Load stability (OUT0)
V-A
-
10
70
mV
Io=0mA~-30mA
OUT0=6V
Load stability (OUT1~5, 7~10) V-B
-
10
70
mV
Io=-15mA~15mA
OUTx=6V
Load stability (OUT6)
V-C
-
10
70
mV
Io=-15mA~15mA
OUT6=6V
Load stability (OUT11)
V-D
-
10
70
mV
Io=0mA~30mA
OUT11=6V
OUT MAX. output voltage
(OUT0)
VOH-A VCC-0.2 VCC-0.1
-
V Io=-30mA
OUT MAX. output voltage
(OUT1~5, 7~10)
VOH-B VCC-1.2 VCC-0.75
-
V Io=-15mA
OUT MAX. output voltage
(OUT6)
VOH-C VCC-0.5 VCC-0.1
-
V Io=-30mA
OUT MAX. output voltage
(OUT11)
VOH-D VCC-1.2 VCC-0.75
-
V Io=-15mA
OUT MIN. output voltage
(OUT0)
VOL-A
-
0.75 1.2
V Io=15mA
OUT MIN. output voltage
(OUT1~5, 7~10)
VOL-B
-
0.75 1.2
V Io=15mA
OUT MIN. output voltage
(OUT6)
VOL-C
-
0.1 0.5
V Io=30mA
OUT MIN. output voltage
(OUT11)
VOL-D
-
0.1 0.2
V Io=30mA
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© 2016 ROHM Co., Ltd. All rights reserved.
3/17
2016.08 - Rev.B

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BD8149MUV
Technical Note
Electrical Characteristics Unless otherwise specified, Ta=25, VDD=3.3V, VCC=15V, REFIN=3.5V
PARAMETER
SYMB
OL
MIN
LIMITS
TYP
MAX
UNIT
CONDITION
VDAC
FB voltage
Vfb 1.237 1.25 1.263
V
Input bias current
Ifb 1.2 0.1 1.2 uA Vfb=1.3V
Current capability
Io 10
50
- mA
Gamma Amplifier
Slew rate (AMP0)
SR0 1 4 - V/usec OUT0=No load
Slew rate
(AMP1~5, 7~10)
SRX
1
4
- V/usec OUT1~5, 7~10=No load
Slew rate (AMP6)
SR6 1 4 - V/usec OUT6=No load
Slew rate (AMP11)
SR11
1
4
- V/usec OUT11=No load
DAC
Integral Non-linearity Error
(INL)
LE
-2
-
00A 3F5 is the allowance
2 LSB margin of error against the ideal
linear.
Differential Non-linearity Error
(DNL)
DLE
-2
-
00A 3F5 is the allowance
2 LSB margin of error against the ideal
increase of 1LSB.
Output voltage precision
Thermal Characteristics 1
Vt1 -200
50
200 mV Ta= -25~85
Output voltage precision
Thermal Characteristics 2
Vt2 -100
30
100 mV Ta= 0~75
Control Signal 1 SEL, EN, A0, A1, A2, SLAVE/AR, EN_AR
Inrush current
Ictl 7
16.5 33
uA VIN=3.3V
Threshold voltage 1A
V TH1A
0.8
-
1.7 V
Threshold voltage 1B
V TH1B
0.6
-
1.7 V VDD=2.5V
Control Signal 2 SDA, SCL
Threshold voltage 2A
V TH2A
0.8
-
1.7 V
Threshold voltage 2B
V TH2B
0.6
-
1.7 V VDD=2.5V
MIN. output voltage
Whole Device
VDD Power ON Reset
Start-up voltage
REFIN UVLO voltage
VCL -
- 0.4
Vdet1 1.75 1.9 2.05
Vdet2 1.75 1.9 2.05
V ISDA=3mA, ISCL=3mA
V
V
SEL switching time *1
tSEL
-
0.3 1.0 usec
Circuit current
ICC - 6 - mA
This product is not designed for protection against radio active rays.
*1 SEL switching time timing is shown below.
OUT
SEL
tSEL
tSEL
Fig.1 SEL switching time timing
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© 2016 ROHM Co., Ltd. All rights reserved.
4/17
2016.08 - Rev.B

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BD8149MUV
Pin Configuration (Top View)
Block Diagram
Technical Note
24 23 22 21 20 19 18 17
25 16
26 15
27 14
28 13
29 12
30 11
31 10
32 9
1 23 4 5 6 78
EN
SDA
SCL
EN_AR
A0
A1
A2
SLAVE/AR
VDD VCC VCC
FB
VDD
VCC
-
+
REG1
VREF
Power
ON
Reset
UVLO
TSD
Serial
I/F
VDAC
REFIN
REGISTER0
A/B
REFIN
DAC
REGISTER1
A/B
DAC
REGISTER2
A/B
DAC
REGISTER3
A/B
DAC
REGISTER4
A/B
REGISTER5
A/B
REGISTER6
A/B
DAC
DAC
DAC
REGISTER7
A/B
REGISTER8
A/B
REGISTER9
A/B
REGISTER10
A/B
REGISTER11
A/B
DAC
DAC
DAC
DAC
DAC
CTL
VCC
AMP0
X4
AMP1
X4
AMP2
X4
AMP3
X4
AMP4
X4
AMP5
X4
AMP6
X4
AMP7
X4
AMP8
X4
AMP9
X4
AMP10
X4
AMP11
X4
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
OUT9
OUT10
OUT11
DACGND GND
AGND
AGND
SEL
Fig.2 Pin Configuration & Block Diagram
Pin Location and Function
PIN
PIN NAME FUNCTION
No.
PIN
PIN NAME FUNCTION
No.
1 GND GND input
17 OUT9 Gamma output pin
2 A0 Device address switching pin
18 OUT8 Gamma output pin
3 A1 Word address switching pin
19 OUT7 Gamma output pin
4 A2 Word address switching pin
20 OUT6 Gamma output pin
5 SDA Serial data input pin
21 OUT5 Gamma output pin
6 SCL Serial clock input pin
22 OUT4 Gamma output pin
7 EN VDAC enable pin
23 OUT3 Gamma output pin
8 EN_AR Auto-read enable pin
24 OUT2 Gamma output pin
9 VDD Logic power supply input
25 OUT1 Gamma output pin
10 SLAVE/AR Slave / Auto-read switching pin
26 OUT0 Gamma output pin
11 SEL REGISTER A/B select pin
27
N.C.
-
12 TEST Pin for test mode
28
VCC
Power supply input
13 DACGND GND input for DAC
29
N.C.
-
14 AGND Buffer AMP GND input
30 REFIN DAC reference voltage input pin
15 OUT11 Gamma output pin
31 VDAC DAC voltage output
16 OUT10 Gamma output pin
32 FB Feedback pin
*In normal use, please connect 12pin TEST pin to OPEN or GND.
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© 2016 ROHM Co., Ltd. All rights reserved.
5/17
2016.08 - Rev.B