19-4473; Rev 0; 2/09
KIT
ATION
EVALU ILABLE
AVA
Dual, High-Voltage Scan Driver for TFT LCD
General Description
The MAX17109 includes two high-voltage, level-shifting
scan drivers for TFT panel integrated gate logic. Each
scan driver has 2 channels that switch complemen-
tarily. The scan driver outputs swing from +40V to
-30V and can swiftly drive capacitive loads. To save
power, the scan driver’s complementary outputs share
the charge of their capacitive load before they change
states.
The MAX17109 is available in a 32-pin, 5mm x 5mm,
thin QFN package with a maximum thickness of 0.8mm
for ultra-thin LCD panels.
♦
+40V to -30V Output Swing Range
♦
Fast Slew Rate for High Capacitive Load
♦
Load Charge Sharing for Power Saving
♦
32-Pin, 5mm x 5mm, Thin QFN Package
Features
MAX17109
Applications
Notebook Computer Displays
LCD Monitor and TV Panels
PART
MAX17109ETJ+
Ordering Information
TEMP RANGE
-40 C to +85 C
PIN-PACKAGE
32 Thin QFN-EP*
+Denotes
a lead(Pb)-free/RoHS-compliant package.
*EP
= Exposed pad.
Simplified Operating Circuit
GON = 25V
GOFF = -14V
Pin Configuration
TOP VIEW
CKVBCS1
CKVCS1
AGND
GOFF
26
CKV1
GON
N.C.
32
31
30
29
28
27
CKVBCS1
CKVCS1
CKV1
GON
AGND
N.C.
GOFF
N.C.
EQUIVALENT
LOAD OF
DISPLAY
PANEL
CKVB1
STVP1
STVP2
CKVB2
N.C.
N.C.
N.C.
N.C.
CKVB1
STVP1
STVP2
CKVB2
CKVBCS2
CKVCS2
CKV2
STV1
V
DD
= 3.3V
1
2
3
4
5
6
7
8
+
25
24
23
22
21
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
CKVBCS2
CKVCS2
CKV2
STV1
MAX17109
N.C.
N.C.
N.C.
N.C.
MAX17109
20
19
18
*EP
17
OECON
AGND
CPV1
CPV2
STV2
DISH
V
DD
OE
10
11
12
13
14
15
DISH
STV1
STV2
OE
OECON
CPV1
CPV2
AGND
STV2
T-CON
CPV1
CPV2
OE
*EXPOSED PAD.
THIN QFN
_______________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
V
DD
16
9
Dual, High-Voltage Scan Driver for TFT LCD
MAX17109
ABSOLUTE MAXIMUM RATINGS
V
DD
to AGND ........................................................... -0.3V to +6V
OECON, CPV1, CPV2, OE, STV1, STV2 to AGND ... -0.3V to +6V
DISH to AGND.............................................-6V to (V
VDD
+ 0.3V)
GON to AGND ........................................................ -0.3V to +45V
GOFF to AGND ..................................................... -35V to + 0.3V
GON to GOFF.......................................................................+70V
CKV1, CKV2, CKVB1,
CKVB2 to GOFF .................................. -0.3V to (V
GON
+ 0.3V)
STVP1, STVP2 to GOFF ........................................(V
GON
+ 0.3V)
CKVCS1, CKVCS2 to GOFF .................... -0.3V to (V
GON
+ 0.3V)
CKVBCS1, CKVBCS2 to GOFF ............... -0.3V to (V
GON
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
32-Pin, 5mm x 5mm Thin QFN
(derate 34.5mW/°C above +70°C) .......................... 2758.6mW
Operating Temperature Range ........................... -40°C to +85°C
Junction Temperature .......................................................+150°C
Storage Temperature Range ............................. -65°C to +150°C
Lead Temperature (soldering, 10s) ..................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
DD
= +3.3V, V
GON
= 25V, V
GOFF
= -14V, STV1 = STV2 = CPV1 = CPV2 = OE = OECON = AGND,
T
A
= 0°C to +85°C,
unless other-
wise noted. Typical values are at T
A
= +25°C.)
PARAMETER
VDD Input-Voltage Range
VDD Quiescent Current
VDD Undervoltage Lockout
Thermal Shutdown
HIGH-VOLTAGE SCAN DRIVER
GON Input-Voltage Range
GOFF Input-Voltage Range
GON-to-GOFF Input-Voltage Range
GON UVLO
GON Supply Current
GOFF Supply Current
CKV Output Impedance Low
CKV Output Impedance High
STV Output Impedance Low
STV Output Impedance High
Driver Output Three-State Current
Charge-Sharing Switch Resistance
DISH Switch Resistance
OE Rising Edge to CKV/CKVB
Rising Edge
OE Rising Edge to CKV/CKVB
Falling Edge
CPV_ Rising Edge to CKVCS_/
CKVBCS_ Rising Edge
CPV_ Rising Edge to CKVCS_/
CKVBCS_ Falling Edge
2
CKV1, CKVB1, CKV2, CKVB2; -20mA output current
CKV1, CKVB1, CKV2, CKVB2; +20mA output current
STVP1, STVP2; -20mA output current
STVP1, STVP2; +20mA output current
CKV1, CKVB1, CKVCS1, CKVBCS1, STVP1, CKV2,
CKVB2, CKVCS2, CKVBCS2, STVP2, T
A
= +25°C
CKVCS_ to CKVBCS_ at 10mA
GOFF = -5V, DISH = -3V
-1
50
200
V
GON
rising
V
GON
falling
10
12.2
11
300
200
6
8
25
35
500
350
12
15
50
70
1
100
400
µA
13
-30
40
-3
65
13
V
V
V
V
µA
µA
V
VDD
rising, typ hysteresis = 50mV
Rising edge, hysteresis = 15°C
CONDITIONS
MIN
2.2
160
1.9
+160
TYP
MAX
3.6
300
2.15
UNITS
V
µA
V
°C
SCAN DRIVER PROPAGATION DELAYS (Note 1)
STV = 0
STV = 0
STV = 0
STV = 0
100
100
50
50
300
300
120
120
ns
ns
ns
ns
_______________________________________________________________________________________
Dual, High-Voltage Scan Driver for TFT LCD
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +3.3V, V
GON
= 25V, V
GOFF
= -14V, STV1 = STV2 = CaPV1 = CPV2 = OE = OECON = AGND,
T
A
= 0°C to +85°C,
unless oth-
erwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
CPV_ Falling Edge to CKVCS_/
CKVBCS_ Rising Edge
CPV_ Falling Edge to CKVCS_/
CKVBCS_ Falling Edge
STV_ Rising Edge to STVP_
Rising Edge
STV_ Falling Edge to STVP_
Falling Edge
SCAN DRIVER FREQUENCIES
CPV Input Frequency
OE Input Frequency
SCAN DRIVER SLEW RATES
Positive Slew Rate
(CKV1, CKVB1, CKV2, CKVB2)
Negative Slew Rate
(CKV1, CKVB1, CKV2, CKVB2)
Positive Slew Rate
(CKV1, CKVB1, CKV2, CKVB2)
Negative Slew Rate
(CKV1, CKVB1, CKV2, CKVB2)
Positive Slew Rate
(STVP1, STVP2)
Negative Slew Rate
(STVP1, STVP2)
INPUT LOGIC THRESHOLDS
CPV1, CPV2, OE, STV1, STV2
Input Low Voltage
OECON
DISH
CPV1, CPV2, OE, STV1, STV2
Input High Voltage
OECON
Input Hysteresis
Input Bias Current
OECON Input Bias Current
DISH Input Impedance
CPV1, CPV2, OE, STV1, STV2
V
STV_
= 0 or VDD, V
CPV_
= 0 or VDD, V
OE
= 0 or VDD
V
OECON
= 0V or VDD, STV_ = 0, T
A
= +25°C
STV1 or STV2 = VDD, OECON = 0.4V
DISH = -1.5V
0.7 x
V
VDD
V
VDD
-
0.5
100
-1
-1
25
40
250
400
+1
+1
0.3 x
V
VDD
V
DD
-
1.1
-1.0
V
mV
µA
µA
mA
k
V
STV = 1, C
LOAD
= 4.7nF, R
LOAD
= 50 , 20% to 80%
STV = 1, C
LOAD
= 15nF, 100 , 15% to 85% (Note 1)
STV = 1, C
LOAD
= 4.7nF, 20% to 80%
STV = 1, C
LOAD
= 4.7nF, R
LOAD
= 50 , 80% to 20%
STV = 1, C
LOAD
= 15nF, 100 , 15% to 85% (Note 1)
STV = 1, C
LOAD
= 4.7nF, 80% to 20%
STV = 0, C
LOAD
= 4.7nF, R
LOAD
= 50 , 20% to 80%
STV = 1, C
LOAD
= 15nF, 100 , 15% to 85% (Note 1)
STV = 0, C
LOAD
= 4.7nF, 20% to 80%
STV = 0, C
LOAD
= 4.7nF, R
LOAD
= 50 , 80% to 20%
STV = 1, C
LOAD
= 15nF, 100 , 15% to 85% (Note 1)
STV = 0, C
LOAD
= 4.7nF, 80% to 20%
C
LOAD
= 4.7nF, R
LOAD
= 200 , 20% to 80% (Note 1)
C
LOAD
= 4.7nF, 20% to 80%
C
LOAD
= 4.7nF, R
LOAD
= 200 , 80% to 20% (Note 1)
C
LOAD
= 4.7nF, 80% to 20%
100
100
100
70
100
70
100
45
20
20
20
15
1000
2000
170
1000
2000
130
1000
2000
120
1000
2000
100
300
40
300
30
V/µs
85
170
kHz
kHz
STV = 0
STV = 0
CONDITIONS
MIN
TYP
100
100
150
150
MAX
300
300
300
300
UNITS
ns
ns
ns
ns
MAX17109
V/µs
V/µs
V/µs
V/µs
V/µs
________________________________________________________________________________________
3
Dual, High-Voltage Scan Driver for TFT LCD
MAX17109
ELECTRICAL CHARACTERISTICS
(VDD = +3.3V, GON = 25V, GOFF = -14V, STV1 = STV2 = CPV1 = CPV2 = OE = OECON = AGND,
T
A
= -40°C to +85°C,
unless otherwise
noted.) (Note 1)
PARAMETER
VDD Input-Voltage Range
VDD Quiescent Current
VDD Undervoltage Lockout
HIGH-VOLTAGE SCAN DRIVER
GON Input-Voltage Range
GOFF Input-Voltage Range
GON-to-GOFF Input-Voltage Range
GON UVLO
GON Supply Current
GOFF Supply Current
CKV Output Impedance Low
CKV Output Impedance High
STV Output Impedance Low
STV Output Impedance High
Charge-Sharing Switch Resistance
DISH Switch Resistance
OE Rising Edge to CKV/CKVB
Rising Edge
OE Rising Edge to CKV/CKVB
Falling Edge
CPV_ Rising Edge to CKVCS_/
CKVBCS_ Rising Edge
CPV_ Rising Edge to CKVCS_/
CKVBCS_ Falling Edge
CPV_ Falling Edge to CKVCS_/
CKVBCS_ Rising Edge
CPV_ Falling Edge to CKVCS_/
CKVBCS_ Falling Edge
STV_ Rising Edge to STVP_ Rising
Edge
STV_ Falling Edge to STVP_ Falling
Edge
CKV1, CKVB1, CKV2, CKVB2; -20mA output current
CKV1, CKVB1, CKV2, CKVB2; +20mA output current
STVP1, STVP2; -20mA output current
STVP1, STVP2; +20mA output current
CKV_ to CKVCS_ and CKVB_ to CKVBCS_ at 10mA
GOFF to -5V, DISH = -3V
V
GON
rising
V
GON
falling
10
500
350
12
15
50
70
100
400
13
-30
40
-3
65
13
V
V
V
V
µA
µA
V
VDD
= 3V
V
VDD
rising, hysteresis = 50mV
CONDITIONS
MIN
2.2
TYP
MAX
3.6
300
2.15
UNITS
V
µA
V
SCAN DRIVER PROPAGATION DELAYS
STV = 0
STV = 0
STV = 0
STV = 0
STV = 0
STV = 0
300
300
120
120
300
300
300
300
ns
ns
ns
ns
ns
ns
ns
ns
4
_______________________________________________________________________________________
Dual, High-Voltage Scan Driver for TFT LCD
ELECTRICAL CHARACTERISTICS (continued)
(VDD = +3.3V, GON = 25V, GOFF = -14V, STV1 = STV2 = CPV1 = CPV2 = OE = OECON = AGND,
T
A
= -40°C to +85°C,
unless otherwise
noted.) (Note 1)
PARAMETER
SCAN DRIVER FREQUENCIES
CPV Input Frequency
OE Input Frequency
SCAN DRIVER SLEW RATES
Positive Slew Rate (CKV1, CKVB1,
CKV2, CKVB2)
STV = 1, C
LOAD
= 4.7nF, R
LOAD
= 50 , 20% to 80%
STV = 1, C
LOAD
= 4.7nF, 20% to 80%
100
100
100
70
100
70
100
45
20
20
20
15
0.3 x
V
VDD
V
DD
-
1.1
-1.0
0.7 x
V
VDD
V
VDD
-
0.5
25
400
V
V/µs
V/µs
V/µs
V/µs
V/µs
V/µs
85
170
kHz
kHz
CONDITIONS
MIN
TYP
MAX
UNITS
MAX17109
Negative Slew Rate (CKV1, CKVB1, STV = 1, C
LOAD
= 4.7nF, R
LOAD
= 50 , 80% to 20%
CKV2, CKVB2)
STV = 1, C
LOAD
= 4.7nF, 80% to 20%
Positive Slew Rate (CKV1, CKVB1,
CKV2, CKVB2)
STV = 0, C
LOAD
= 4.7nF, R
LOAD
= 50 , 20% to 80%
STV = 0, C
LOAD
= 4.7nF, 20% to 80%
Negative Slew Rate (CKV1, CKVB1, STV = 0, C
LOAD
= 4.7nF, R
LOAD
= 50 , 80% to 20%
CKV2, CKVB2)
STV = 0, C
LOAD
= 4.7nF, 80% to 20%
Positive Slew Rate (STVP1, STVP2)
Negative Slew Rate (STVP1,
STVP2)
INPUT LOGIC THRESHOLDS
CPV1, CPV2, OE, STV1, STV2
Input Low Voltage
OECON
DISH
CPV1, CPV2, OE, STV1, STV2
Input High Voltage
OECON
OECON Input Bias Current
DISH input Impedance
STV1 or STV2 = VDD, OECON = 0.4V
DISH = -1.5V
C
LOAD
= 4.7nF, R
LOAD
= 200 , 20% to 80%
C
LOAD
= 4.7nF, 20% to 80%
C
LOAD
= 4.7nF, R
LOAD
= 200 , 80% to 20%
C
LOAD
= 4.7nF, 80% to 20%
V
mA
k
Note 1:
Guaranteed by design, not production tested.
________________________________________________________________________________________
5
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