19-4952; Rev 0; 12/09
TION KIT
EVALUA BLE
AVAILA
10-Channel Scan Driver
for TFT LCD with GPM Function
Features
S
High-Voltage Level-Shifting Scan Drivers
General Description
The MAX17119 includes a 10-channel, high-voltage,
level-shifting scan driver with a gate-pulse modulation
(GPM) feature to shape the corner of the scan-driver out-
put to reduce flicker. The device is optimized for thin-film
transistor (TFT) liquid-crystal display (LCD) applications.
The high-voltage level-shifting scan driver is designed to
drive the TFT panel gate logic. Its 10 outputs swing from
+38V (maximum) to -12V (minimum) and can swiftly drive
capacitive loads. There are two positive supply inputs
that provide flexibility for system design.
The GPM feature is employed to shape the corner of the
falling edge of the clock channels. This reduces flicker,
and therefore improves the display quality.
The MAX17119 also features a dedicated discharge
channel and an integrated voltage detector. When the
system shuts down, the voltage detector commands the
discharge channel to swing its output to positive sup-
ply voltage so as to remove any residual image on the
display quickly.
The MAX17119 is available in a 28-pin, 5mm x 5mm, thin
QFN package with a maximum thickness of 0.8mm for
thin LCD panels.
Logic-Level Inputs
+38V to -12V Outputs
GPM Feature
Discharge Channel
S
Thermal-Overload Protection
MAX17119
S
28-Pin, 5mm x 5mm Thin QFN Package
Ordering Information
PART
MAX17119ETI+
TEMP RANGE
-40NC to +85NC
PIN-PACKAGE
28 TQFN
+Denotes
lead(Pb)-free/RoHS-compliant package.
Applications
LCD Monitors
LCD TVs
_______________________________________________________________
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.
10-Channel Scan Driver
for TFT LCD with GPM Function
MAX17119
ABSOLUTE MAXIMUM RATINGS
A1–A9, VSENSE, FLK1, FLK2, FLK3 to GND..........-0.3V to +6V
GON1, GON2 to GND ...........................................-0.3V to +40V
GOFF to GND ........................................................-14V to +0.3V
Y1–Y7, YDCHG to GND ........(V
GOFF
- 0.3V) to (V
GON1
+ 0.3V)
Y8, Y9 to GND ....................... (V
GOFF
- 0.3V) to (V
GON2
+ 0.3V)
RE to GND ............................................ -0.3V to (V
GON1
+ 0.3V)
Y1–Y6 to RE...........................(V
GOFF
- 0.3V) to (V
GON1
+ 0.3V)
Y1–Y6, YDCHG Load RMS Current .................................350mA
GON1 RMS Current ........................................................600mA
GON2 RMS Current..........................................................380mA
GOFF RMS Current ..........................................................600mA
Continuous Power Dissipation (T
A
= +70NC)
28-Pin, 5mm x 5mm TQFN
(derate 34.5mW/NC above +70NC)..........................2758.6mW
Operating Temperature Range .......................... -40NC to +85NC
Junction Temperature .....................................................+150NC
Storage Temperature Range............................ -65NC to +150NC
Lead Temperature (soldering, 10s) ................................+300NC
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
(Circuit of Figure 1, V
GON_
= 30V, V
GOFF
= -6.2V,
T
A
= 0°C to +85°C.
Typical values are at T
A
= +25°C, unless otherwise noted.)
PARAMETER
HIGH-VOLTAGE DRIVER BLOCK
GON_ Input-Voltage Range
GOFF Input-Voltage Range
GOFF Supply Current
GON_ Total Supply Current
Output Voltage Low
(Y1–Y9, YDCHG)
Output Voltage High
(Y1–Y7, YDCHG)
Output Voltage High (Y8, Y9)
Rise Time (Y1–Y7, YDCHG)
Fall Time (Y1–Y7, YDCHG)
Rise Time (Y8, Y9)
Fall Time (Y8, Y9)
Propagation Delay A_ Rising to
Y_ Rising, VSENSE Falling to
YDCHG Rising
Propagation Delay A_ Falling
to Y_ Falling, VSENSE Rising to
YDCHG Falling
A1–A9 = 3.3V, VSENSE = GND, no load
A1–A9 = 3.3V, VSENSE = GND, no load
I
OUT =
10mA
I
OUT =
10mA
I
OUT
= 10mA
T
A
= +25NC , V
GON1
= 30V and V
GOFF
= -6.2V
(Note 1)
T
A
= +25NC , V
GON1
= 30 V and V
GOFF
= -6.2V
(Note 1)
T
A
= +25NC , V
GON2
= 30V and V
GOFF
= -6.2V
(Note 1)
T
A
= +25NC , V
GON2
= 30V and V
GOFF
= -6.2V
(Note 1)
With V
GON_
= 30V and V
GOFF
= -6.2V (Note 1)
GON1 -
0.16
GON2 -
0.16
12
-12
100
450
GOFF +
0.08
GON1 -
0.08
GON2 -
0.08
50
40
50
40
200
120
200
120
38
-2
200
750
GOFF +
0.16
V
V
FA
FA
V
V
V
ns
ns
ns
ns
CONDITIONS
MIN
TYP
MAX
UNITS
50
ns
With V
GON_
= 30V and V
GOFF
= -6.2V (Note 1)
50
ns
2
______________________________________________________________________________________
10-Channel Scan Driver
for TFT LCD with GPM Function
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
GON_
= 30V, V
GOFF
= -6.2V,
T
A
= 0°C to +85°C.
Typical values are at T
A
= +25°C, unless otherwise noted.)
PARAMETER
Propagation Delay FLK_ Falling
to Y_ Discharge
Y_ to RE Switch On-Resistance
CONTROL INPUTS
Logic Input-Voltage Range
(A1–A9)
Logic Input Voltage Low
(A1–A9)
Logic Input Voltage High
(A1–A9, VSENSE)
Logic Input-Leakage Current
(A1–A9)
VOLTAGE DETECTOR
VSENSE Voltage Range
VSENSE Bias Current
VSENSE Threshold Voltage
THERMAL PROTECTION
Thermal Shutdown
Rising edge, hysteresis = 15NC
+160
NC
VSENSE = 1.5V
Falling edge
2.3
1.158
4.6
1.218
5.5
8
1.278
V
FA
V
0V < A_, VSENSE < 5.5V, T
A
= +25°C
2
-1
+1
5.5
0.8
V
V
V
FA
CONDITIONS
MIN
TYP
50
50
100
MAX
UNITS
ns
I
MAX17119
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
GON_
= 30V, V
GOFF
= -6.2V,
T
A
= -40°C to +85°C.)
(Note 2)
PARAMETER
HIGH-VOLTAGE DRIVER BLOCK
GON_ Input-Voltage Range
GOFF Input-Voltage Range
GOFF Supply Current
GON_ Total Supply Current
Output Voltage Low
(Y1–Y9, YDCHG)
A1–A9 = 3.3V, VSENSE = GND, no load
A1–A9 = 3.3V, VSENSE = GND, no load
I
OUT
= 10mA
12
-12
38
-2
200
750
GOFF +
0.16
V
V
FA
FA
V
CONDITIONS
MIN
TYP
MAX
UNITS
_______________________________________________________________________________________
3
10-Channel Scan Driver
for TFT LCD with GPM Function
MAX17119
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V
GON_
= 30V, V
GOFF
= -6.2V,
T
A
= -40°C to +85°C.)
(Note 2)
PARAMETER
Output Voltage High
(Y1–Y7, YDCHG)
Output Voltage High (Y8, Y9)
Rise Time (Y1–Y7, YDCHG)
Fall Time (Y1–Y7, YDCHG)
Rise Time (Y8, Y9)
Fall Time (Y8, Y9)
Y_ to RE Switch On-Resistance
CONTROL INPUTS
Logic Input-Voltage Range
(A1–A9)
Logic Input Voltage Low
(A1–A9)
Logic Input Voltage High
(A1–A9)
VOLTAGE DETECTOR
VSENSE Voltage Range
VSENSE Threshold Voltage
VSENSE Pullup Current
Falling edge
VSENSE = 1.5V
1.158
2.3
5.5
1.278
8
V
V
FA
2
5.5
0.8
V
V
V
I
OUT
= 10mA
I
OUT
= 10mA
T
A
= +25NC, V
GON1
= 30V and V
GOFF
= -6.2V
(Note 1)
T
A
= +25NC, V
GON1
= 30V and V
GOFF
= -6.2V
(Note 1)
T
A
= +25oC, V
GON2
= 30V and V
GOFF
= -6.2V
(Note 1)
T
A
= +25NC , V
GON2
= 30V and V
GOFF
= -6.2V
(Note 1)
CONDITIONS
MIN
GON1 -
0.16
GON2 -
0.16
200
120
200
120
100
TYP
MAX
UNITS
V
V
ns
ns
ns
ns
I
Note 1:
The panel models for different channels are illustrated in Figure 4.
Note 2:
-40°C specs are guaranteed by design, not production tested.
4
______________________________________________________________________________________
10-Channel Scan Driver
for TFT LCD with GPM Function
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
MAX17119
SCAN-DRIVER OUTPUT RISING EDGE (Y1–Y6)
PROPAGATION DELAY AND RISE TIME
MAX17119 toc01
SCAN-DRIVER OUTPUT FALLING EDGE (Y1–Y6)
PROPAGATION DELAY AND FALL TIME
MAX17119 toc02
V
A
2V/div
0V
V
A
2V/div
0V
V
Y
10V/div
0V
V
Y
10V/div
0V
100ns/div
100ns/div
SCAN-DRIVER OUTPUT RISING EDGE (Y7)
PROPAGATION DELAY AND RISE TIME
MAX17119 toc03
SCAN-DRIVER OUTPUT FALLING EDGE (Y7)
PROPAGATION DELAY AND FALL TIME
MAX17119 toc04
V
A7
2V/div
0V
V
A7
2V/div
0V
V
Y7
10V/div
0V
V
Y7
10V/div
0V
20ns/div
20ns/div
SCAN-DRIVER OUTPUT RISING EDGE (Y8 AND Y9)
PROPAGATION DELAY AND RISE TIME
MAX17119 toc05
SCAN-DRIVER OUTPUT FALLING EDGE (Y8 AND Y9)
PROPAGATION DELAY AND FALL TIME
MAX17119 toc06
V
A8
2V/div
0V
V
A8
2V/div
0V
V
Y8
10V/div
0V
V
Y8
10V/div
0V
100ns/div
100ns/div
_______________________________________________________________________________________
5
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