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ROHM Semiconductor |
Power Supply IC Series for TFT LCD Panels
High-precision
Gamma Correction IC with built-in DAC
BD8143MUV
No.09035EBT08
●Description
This gamma correction voltage generation IC feature built-in DACs and provide a 1chip solution with setting control via serial
communications, a high-precision 10-bitDAC, and Buffer Amp (12ch).
●Features
1) 1chip design means fewer components
2) Built-in 10bit DAC
3) DAC output Buffer AMP (12ch)
4) Amp input select (CTL)
5) 3-line serial interface control
6) Thermal shut down
7) Power ON Reset Circuit
8) VQFN032V5050 Package
●Applications
These ICs can be used with TFT LCD Panels used by Large-Screen and High-Definition LCD TVs.
●Absolute maximum ratings (Ta=25℃)
Parameter
Symbol
Limit
Power Supply Voltage 1
DVCC
7
Power Supply Voltage 2
VCC
20
REFIN Voltage
Amplifier Drive Current
REF
Io
20
30 *1
Junction Temperature
Power Dissipation
Tjmax
Pd
150
2440 *2
Operating Temperature Range
Topr -40~+105
Storage Temperature Range
Tstg -55~+150
*1 Pd, should not be exceeded.
*2 Reduced by 19.52mW/°C over 25°C, when mounted on a glass epoxy board.
(4-layer 74.2×74.2×1.6mm).
Unit
V
V
V
mA
℃
mW
℃
℃
●Operating Condition (Ta=-40℃~105℃)
Parameter
Power Supply Voltage 1
Power Supply Voltage 2
REFIN Voltage
AMP0 Drive Current
AMP1~10 Drive Current
AMP11 Drive Current
Serial CLK Frequency
OSC Frequency
Symbol
DVCC
VCC
REF
IOA
IOB
IOC
fCLK
FOSC
Limit
MIN MAX
2.3 5.5
8 18
8 18
-40 -
-20 20
- 40
-5
- 200
Unit
V
V
V
mA
mA
mA
MHz
kHz
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
1/10
2009.07 - Rev.B
BD8143MUV
Technical Note
●Electrical Characteristics (Unless otherwise specified, Ta=25℃,DVCC=3.3V,VCC=15V)
Parameter
Symbol
MIN
Limit
TYP
MAX
Unit
Conditions
〔REFIN〕
Sink Current
Iref 90 200 µA REF=10V
〔γCORRECTION AMP〕
Source Drive Current (AMP0)
IooA
-60 mA DAC=7V,OUT0=13V
Source Drive Current (AMP1~10) IooB
-30 mA DAC=3.5V,OUT1~10=0V
Source Drive Current (AMP11)
IooC
-10 mA DAC=0.5V,OUT11=0V
Sink Drive Current (AMP0)
IoiA 10
mA DAC=7V,OUT0=15V
Sink Drive Current (AMP1~10)
IoiB
30
mA DAC=3.5V,OUT1~10=15V
Sink Drive Current (AMP11)
IoiC 60
mA DAC=0.5V,OUT11=2V
Load regulation (OUT0)
⊿V-A
10
mV Io=0mA~-35mA, OUTx=6V
Load regulation (OUT1~10)
⊿V-B
10
mV Io=-15mA~15mA, OUTx=6V
Load regulation (OUT11)
⊿V-C
10
mV Io=0mA~35mA, OUTx=6V
Slew Rate
SR 3 V/µs
OUT Voltage High (OUT0)
VOH-A VCC-0.4 VCC-0.15
-
V Io=-35mA
OUT Voltage High (OUT1~10) VOH-B
VCC-0.75
-
V Io=-15mA
OUT Voltage High (OUT11)
VOH-C
VCC-0.75
-
V Io=-15mA
OUT Voltage Low (OUT0)
VOL-A
-
0.75
V Io=15mA
OUT Voltage Low (OUT1~10)
VOL-B
-
0.75
V Io=15mA
OUT Voltage Low (OUT11)
VOL-C
-
0.1 0.2 V Io=35mA
〔DAC〕
Resolution Coding
Res
10
Bit
Non-Linear Error (INL)
Differential Error (DNL)
LE -2
-
2
LSB
Error with ideal straight Range
00A~3F5
Error with ideal amount of
DLE -2 - 2 LSB Increase in 1LSB Range
00A~3F5
〔OSC〕
OSC Frequency
fosc - 100 - kHz Internal oscillator mode
〔CONTROL SIGNAL〕
Sink Current
Ictl
16.5
µA VIN=3.3V
Threshold Voltage
〔CONTROL〕
VTH DVCC×0.2
DVCC×0.8 V
OUT0 Voltage
OUT1 Voltage
OUT2 Voltage
OUT3 Voltage
OUT4 Voltage
OUT5 Voltage
OUT6 Voltage
OUT7 Voltage
OUT8 Voltage
OUT9 Voltage
OUT10 Voltage
OUT11 Voltage
Vpre0
Vpre1
Vpre2
Vpre3
Vpre4
Vpre5
Vpre6
Vpre7
Vpre8
Vpre9
Vpre10
Vpre11
-
-
-
-
-
-
-
-
-
-
-
-
REFIN
X 12/13
REFIN
X 11/13
REFIN
X 10/13
REFIN
X 9/13
REFIN
X 813
REFIN
X 7/13
REFIN
X 6/13
REFIN
X 5/13
REFIN
X 4/13
REFIN
X 3/13
REFIN
X 2/13
REFIN
X 1/13
-
-
-
-
-
-
-
-
-
-
-
-
V CTL=”LOW”
V CTL=”LOW”
V CTL=”LOW”
V CTL=”LOW”
V CTL=”LOW”
V CTL=”LOW”
V CTL=”LOW”
V CTL=”LOW”
V CTL=”LOW”
V CTL=”LOW”
V CTL=”LOW”
V CTL=”LOW”
〔WHOLE DEVICE〕
VDAC Detection Voltage
Vdet
2.6
3.2
3.6 V
Circuit Current
ICC 5 mA CTL=”LOW”
This product is not designed for protection against radio active rays.
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
2/10
2009.07 - Rev.B
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