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产品型号MAX17108的Datasheet PDF文件预览

19-4354; Rev 0; 10/08  
MAX17108 Evaluation Kit  
Evluates:MAX7108  
General Description  
Features  
The MAX17108 evaluation kit (EV kit) is a fully assem-  
bled and tested surface-mount PCB that evaluates the  
MAX17108 10-channel, high-voltage level-shifting scan  
driver for active-matrix, thin-film transistor (TFT) liquid-  
crystal display (LCD) applications.  
o +6V to +20V AVDD Input Voltage Range  
o +12V to +38V GON_ Input Voltage Range  
o -14V to -4V GOFF Input Voltage Range  
o Resistor-Adjustable LDO Regulator for Logic  
The EV kit operates from a DC supply voltage of +6V to  
+20V for the MAX17108 AVDD input. The EV kit also  
requires a +12V to +38V power supply and a -14V to  
-4V negative power supply for the MAX17108 level-  
shifting scan-driver circuitry. A PCB pad is provided to  
monitor the output of an independent op amp, which is  
configured to half the AVDD input voltage and is capa-  
ble of providing up to 200mA of short-circuit current.  
Inputs  
o Demonstrates 10 High-Voltage Level-Shifting  
Scan Drivers  
o Lead-Free and RoHS Compliant  
o Fully Assembled and Tested  
Ordering Information  
PART  
TYPE  
MAX17108EVKIT+  
EV Kit  
+Denotes lead-free and RoHS compliant.  
Component List  
DESIGNATION QTY  
DESCRIPTION  
DESIGNATION QTY  
DESCRIPTION  
C1, C88,  
0
Not installed, ceramic capacitors  
(1206)  
C38–C43, C62,  
C64, C65, C66,  
C68, C70, C72,  
C73, C74, C76  
100pF 5ꢀ, 50V C0G ceramic  
16 capacitors (0402)  
C89, C90  
Murata GRM1555C1H101J  
1µF 10ꢀ, 25V X5R ceramic  
capacitor (0603)  
Murata GRM188R61E104K  
C2  
1
0
3
10pF 5ꢀ, 50V C0G ceramic  
capacitors (0402)  
Murata GRM1555C1H100J  
C44–C49,  
C67, C75  
8
6
6
4
4
4
Not installed, ceramic capacitors  
(0603)  
C3, C4  
51pF 5ꢀ, 50V C0G ceramic  
capacitors (0603)  
Murata GRM1885C1H510J  
1µF 10ꢀ, 50V X7R ceramic  
capacitors (0805)  
Murata GRM21BR71H105K  
C50–C55  
C56–C61  
C5, C6, C7  
4pF 0.25pF, 50V C0G ceramic  
capacitors (0402)  
Murata GRM1555C1H4R0C  
1000pF 5ꢀ, 50V C0G ceramic  
capacitors (0402)  
Murata GRM1555C1H102J  
C8–C13  
C14–C25  
C26–C31  
C32–C37  
6
12  
6
12pF 5ꢀ, 50V C0G ceramic  
capacitors (0402)  
Murata GRM1555C1H120J  
1800pF 5ꢀ, 50V C0G ceramic  
capacitors (0603)  
Murata GRM1885C1H182J  
C63, C69,  
C71, C77  
1.5pF 0.25pF, 50V C0G ceramic  
capacitors (0402)  
Murata GRM155C1H1R5C  
680pF 5ꢀ, 50V C0G ceramic  
capacitors (0402)  
Murata GRM1555C1H681J  
C78, C79,  
C84, C85  
3pF 0.25pF, 50V C0G ceramic  
capacitors (0402)  
Murata GRM1555C1H3R0C  
220pF 5ꢀ, 50V C0G ceramic  
capacitors (0402)  
Murata GRM1555C1H221J  
C80–C83  
6
________________________________________________________________ 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.  
MAX17108 Evaluation Kit  
Component List (continued)  
DESIGNATION QTY  
DESCRIPTION  
DESIGNATION QTY  
DESCRIPTION  
R6, R11, R16,  
R21, R26, R31  
0.1µF 10ꢀ, 25V X5R ceramic  
capacitor (0603)  
Murata GRM188R61E104K  
6
6
124Ω 1ꢀ resistors (0603)  
C86  
1
R7, R12, R17,  
R22, R27, R32  
249Ω 1ꢀ resistors (0603)  
10µF 20ꢀ, 6.3V X5R ceramic  
capacitor (0603)  
Murata GRM188R60J106M  
R33–R38  
R39–R44  
R45–R54  
R55  
6
6
178Ω 1ꢀ resistors (0603)  
10Ω 5ꢀ resistors (0603)  
C87  
1
1
10 100kΩ 5ꢀ resistors (0603)  
GND  
Miniature black test point  
1
1
1
1
100kΩ 1ꢀ resistor (0603)  
100kΩ single-turn potentiometer  
30.1kΩ 1ꢀ resistor (0603)  
10-position DIP switch  
JU1,  
JU12–JU21  
11 3-pin headers  
R56  
R57  
JU2–JU11  
10 2-pin headers  
Sꢁ1  
LDO_OUT,  
TP1–TP10  
11 Miniature red test points  
10-channel scan driver with op amp  
(28 TQFN-EP*)  
Maxim MAX17108ETI+  
U1  
U2  
1
R1, R2  
2
6
100kΩ 1ꢀ resistors (0402)  
R3, R8, R13,  
R18, R23, R28  
Adjustable LDO regulator  
(8 TDFN-EP*)  
Maxim MAX6771TALD2+  
(Top Mark +BEG)  
64.9Ω 1ꢀ, 1/2ꢁ resistors (2010)  
Evluates:MAX7108  
1
R4, R9, R14,  
R19, R24, R29  
6
6
64.9Ω 1ꢀ, 1/4ꢁ resistors (1206)  
64.9Ω 1ꢀ resistors (0603)  
21 Shunts (JU1–JU21)  
R5, R10, R15,  
R20, R25, R30  
1
PCB: MAX17108 Evaluation Kit+  
*EP = Exposed pad.  
Component Supplier  
SUPPLIER  
Murata Mfg. Co., Ltd.  
Note: Indicate that you are using the MAX17108 when contacting this component supplier.  
PHONE  
WEBSITE  
770-36-1300  
www.murata.com  
2) Verify that shunts are installed across jumpers  
JU2–JU11 (RC loads connected at scan driver out-  
puts).  
Quick Start  
Required Equipment  
Before beginning, the following equipment is needed:  
3) Verify that shunts are installed across pins 2-3 of  
jumpers JU12–JU21 (DC voltage applied at  
inputs).  
• -12V to -4V, 500mA DC power supply  
• +6V to +20V, 250mA DC power supply  
• +12V to +38V, 1A DC power supply  
• Two voltmeters  
4) Verify that all positions of the Sꢁ1 DIP switch are  
in the on position (logic-high DC voltage at inputs).  
5) Connect a voltmeter to the LDO_OUT and GND  
test points.  
Procedure  
The MAX17108 EV kit is fully assembled and tested.  
Follow the steps below to verify board operation.  
Caution: Do not turn on the power supplies until all  
connections are completed.  
6) Connect a voltmeter to the VCOM and GND PCB  
pads.  
7) Connect the negative terminal of the negative  
power supply to the GOFF PCB pad. Connect the  
ground terminal of the negative power supply to  
the PGND pad.  
1) Verify that a shunt is installed across pins 1-2 of  
jumper JU1 (GON2 = GON1).  
2
_______________________________________________________________________________________  
MAX17108 Evaluation Kit  
Evluates:MAX7108  
8) Connect the +6V to +20V power-supply positive  
terminal to the AVDD PCB pad. Connect the  
power-supply ground terminal to the PGND pad.  
configuration of jumper JU1. Jumpers JU2–JU11 are provid-  
ed to connect RC loads at the MAX17108Y 1–Y10 outputs.  
The MAX17108 VCOM amplifier output is configured as  
a unity-gain buffer and is set to half the voltage applied  
at the AVDD PCB pad, using resistors R1 and R2. To  
reconfigure VCOM to other voltages, replace resistor  
R1. The VCOM output can be monitored using the EV  
kit VCOM and GND PCB pads.  
9) Connect the +12V to +38V power-supply positive  
terminal to the GON1 PCB pad. Connect the  
power-supply ground terminal to the PGND pad.  
10) Enable the GOFF negative power supply and set it  
to -12V.  
11) Enable the AVDD positive power supply and set it  
to +12V.  
Power Supplies Configuration  
The MAX17108EV kit requires two positive power supplies  
and one negative power supply for proper evaluation of  
the EV kit. AVDD requires a +6V to +20V power supply  
that provides up to 250mA of current. GON1 and GON2  
each require a +12V to +38V power supply providing up  
to 500mA of current. GOFF requires a -12V to -4V power  
supply that provides up to 500mA of current.  
12) Enable the GON1 positive power supply and set it  
to +20V.  
13) Adjust potentiometer R56 until the voltmeter at  
LDO_OUT reads +3.3V.  
14) Verify that the output of the high-speed op amp  
(VCOM) is +6V.  
Jumper JU1 configures the input power source for  
GON2. Install a shunt across pins 1-2 of jumper JU1 to  
select GON1 as the input power source for GON2.  
Install a shunt across pins 2-3 of jumper JU1 to apply  
an external power source at the GON2 and PGND PCB  
pads. Buffers Y7 and Y8 output the voltage applied at  
the GON2 PCB pad. See Table 1 for proper jumper JU1  
configuration.  
15) Verify that test points TP1–TP10 outputs are +20V.  
Detailed Description of Hardware  
The MAX17108 evaluation kit (EV kit) is a fully assem-  
bled and tested surface-mount PCB that evaluates the  
MAX17108 10-channel, high-voltage level-shifting scan  
drivers for thin-film transistor (TFT) liquid-crystal display  
(LCD) applications. The EV kit requires two positive  
power supplies and one negative power supply. AVDD  
requires a +6V to +20V power supply that provides up  
to 250mA of current. A +12V to +38V power supply that  
provides up to 1A of current is required when powering  
both the GON1 and GON2 inputs. The GON1 and  
GON2 inputs can also be powered using separate  
power supplies that provide up to 500mA each of cur-  
rent. GOFF requires a -12V to -4V power supply that  
provides up to 500mA of current.  
Table 1. GON2 Power Source Selection  
(JU1)  
SHUNT  
GON2 IC PIN  
POSITION  
1-2  
Connected to GON1  
Connected to external power source at GON2  
and PGND PCB pads  
2-3  
The MAX17108 logic level to high-voltage level-shifting  
scan drivers can buffer 10 logic inputs (A1–A10) and  
shift them to a desired level (Y1–Y10) for driving TFT-  
LCD row logic. GON1 supplies the high-voltage levels  
at the MAX17108 buffers Y1–Y6, Y9, and Y10 when its  
respective input is a logic-high. GON2 supplies the  
high-voltage levels at the MAX17108 buffers Y7 and Y8  
when its respective input is a logic-high. GOFF supplies  
the low-voltage level at all of the scan-driver outputs  
when their input is a logic-low. DIP switch Sꢁ1 is used  
to set a DC logic-high level at A1–A10 inputs for testing  
purposes, by using a high-voltage input LDO regulator  
U2 (MAX6771) and potentiometer R56.  
Additional surface-mount 1206 PCB pads are provided  
for adding additional bulk capacitance at C1, C88, C89,  
and C90 when interfacing long wires to the EV kit’s  
AVDD, GON1, GON2, and GOFF power-supply inputs.  
Output Load Connection  
The MAX17108 EV kit provides resistor/capacitor loads  
for each output channel to mimic TFT-LCD panel load  
models for easy evaluation of the EV kit. Install shunts  
across jumpers JU2–JU11 to connect the RC loads to  
the MAX17108 scan-driver outputs. Place a scope  
probe across the shunts installed at jumpers  
JU2–JU11 and PGND for proper evaluation of the  
MAX17108 buffers (Y1–Y10), when applying a square-  
wave signal at the SIGNAL_IN PCB pad. Test points  
TP1–TP10 can be used to monitor the loaded buffer out-  
puts when applying static DC voltages at the A_ inputs.  
Jumper JU1 is provided for evaluation of the MAX17108  
EV kit when utilizing one power source for the  
MAX17108 GON1 and GON2 power inputs. See the  
Power Supplies Configuration section for proper  
_______________________________________________________________________________________  
3
MAX17108 Evaluation Kit  
Table 2. Output Load Connection  
(JU2–JU11)  
Table 3. Logic Input Configuration  
(JU12–JU21)  
SHUNT  
POSITION  
SHUNT  
POSITION  
MAX17108 Y1Y10  
SW1 POSITION  
A_ INPUT LOGIC LEVEL  
EV KIT FUNCTION  
OUTPUTS  
Square wave applied at  
SIGNAL_IN PCB pad  
Outputs monitored at  
shunts  
1-2  
X
Installed  
Connected to RC loads  
Off  
On  
Low  
Not  
installed  
Disconnected from RC No-load condition for  
2-3  
load  
scan drivers  
High  
X = Don’t care.  
Inputs (A_) Logic-Level  
Selection (JU12–JU21)  
Install a shunt across pins 2-3 of the individual chan-  
nels to configure the inputs to static logic-low or logic-  
high DC levels. DIP switch Sꢁ1 sets the buffer inputs to  
a logic-high level using the output of LDO regulator  
(U2) and potentiometer R56. The LDO regulator output  
voltage can be adjusted from +2.2V to +5.3V using R56  
and can be monitored by probing test point LDO_OUT.  
Rotate potentiometer R56 clockwise to decrease the  
LDO output voltage and vice versa. Set DIP switch Sꢁ1  
to the on position to place a logic-high voltage at the  
inputs. Set switch Sꢁ1 to the off position to place a  
logic-low voltage at the inputs. See Table 3 for proper  
JU12–JU21 jumper configurations.  
Jumpers JU12–JU21 configure the MAX17108 EV kit’s  
A1–A10 inputs to accept either a DC voltage or square-  
wave input signal. Install a shunt across pins 1-2 of the  
individual channels to use the square-wave signal  
applied at the SIGNAL_IN and GND PCB pads to drive  
the inputs. The square-wave signal should have a +2V  
to +5.5V logic-high level. Place scope probes across  
the shunts installed at jumpers JU2–JU11 and  
PGND for proper evaluation of the MAX17108 scan  
driver outputs (Y1–Y10), when applying a square-  
wave signal at the SIGNAL_IN PCB pad.  
Evluates:MAX7108  
4
_______________________________________________________________________________________  
MAX17108 Evaluation Kit  
Evluates:MAX7108  
Figure 1. MAX17108 EV Kit Schematic  
_______________________________________________________________________________________  
5
MAX17108 Evaluation Kit  
Evluates:MAX7108  
Figure 2. MAX17108 EV Kit Component Placement Guide—Component Side  
6
_______________________________________________________________________________________  
MAX17108 Evaluation Kit  
Evluates:MAX7108  
Figure 3. MAX17108 EV Kit PCB Layout—Component Side  
_______________________________________________________________________________________  
7
MAX17108 Evaluation Kit  
Evluates:MAX7108  
Figure 4. MAX17108 EV Kit PCB Layout—Solder Side  
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are  
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.  
8 ___________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600  
© 2008 Maxim Integrated Products  
is a registered trademark of Maxim Integrated Products, Inc.  
配单直通车
MAX17108ETI+T产品参数
型号:MAX17108ETI+T
是否Rohs认证: 符合
生命周期:Obsolete
包装说明:HVQCCN,
Reach Compliance Code:compliant
HTS代码:8542.39.00.01
风险等级:5.63
接口集成电路类型:INTERFACE CIRCUIT
JESD-30 代码:S-XQCC-N28
长度:5 mm
湿度敏感等级:1
功能数量:1
端子数量:28
最高工作温度:85 °C
最低工作温度:-40 °C
封装主体材料:UNSPECIFIED
封装代码:HVQCCN
封装形状:SQUARE
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度(摄氏度):NOT SPECIFIED
座面最大高度:0.8 mm
最大供电电压:20 V
最小供电电压:6 V
标称供电电压:16 V
表面贴装:YES
技术:BICMOS
温度等级:INDUSTRIAL
端子形式:NO LEAD
端子节距:0.5 mm
端子位置:QUAD
处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:5 mm
Base Number Matches:1
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