MAX17114 [MAXIM]
Fully Assembled and Tested;
| 型号： | MAX17114 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Fully Assembled and Tested |
| 文件： | 总6页 (文件大小：798K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-4882; Rev 0; 8/09
MAX17114 Evaluation Kit
General Description
Features
S +8V to +16.5V Input Range
The MAX17114 evaluation kit (EV kit) is a fully assem-
bled and tested surface-mount PCB that provides the
voltages and features required for thin-film transistor
liquid-crystal display (TFT LCD) TV panels. The EV kit
includes a step-down and step-up regulator, positive
and negative charge pump, op amp, high accuracy/
high-voltage gamma reference, and high-voltage switch-
control block.
S Selectable Switching Frequency (500kHz/750kHz)
S Output Voltages
+16V Output at 1A (Step-Up Switching
Regulator)
+3.3V Output at 1.5A (Step-Down Switching
Regulator)
The MAX17114 operates from input voltages from +8V
to +16.5V and is optimized for an LCD TV panel run-
ning directly from +12V supplies. The step-up switching
regulator is configured for a +16V output that provides
at least 1A with an input voltage of +12V; the step-down
regulator is configured for a +3.3V output that provides
at least 1.5A; the positive charge pump is configured for
a +35V output providing at least 50mA; and the negative
charge pump is configured for a -6V output providing at
least 50mA.
+35V Output at 50mA (Positive Charge Pump)
-6V Output at 50mA (Negative Charge Pump)
+15.06V Output at 60mA (Gamma Reference,
GREF)
+5V Output at 25mA (Linear Regulator, VL)
S
200mA High-Current Op-Amp Output
S Greater than 94% Efficiency (Step-Up Switching
Regulator)
S Fully Assembled and Tested
Ordering Information
PART
TYPE
MAX17114EVKIT+
EV Kit
+Denotes lead(Pb)-free and RoHS compliant.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
10FF Q10%, 25V X5R ceramic
capacitors (1206)
Murata GRM31CR61E106K
TDK C3216X5R1E106M
150FF Q10%, 16V tantalum
capacitor (D case)
KEMET B45197A3157K409
KEMET T491D157K016AT
AVX TAJD157M016R
C1, C2, C3, C5,
6
C6, C18
C10
1
2200pF Q10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H222K
TDK C1608X7R1H222K
1FF Q10%, 50V X7R ceramic
capacitor (0805)
Murata GRM21BR71H105K
Taiyo Yuden UMK212F105ZG
C4
C7
C8
1
0
1
C15
C17
C20
C21
1
0
1
0
Not installed, ceramic capacitor
(1206)
Not installed, through-hole OSCON
capacitor (OSCON-B)
1000pF Q10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H102K
TDK C1608X7R1H102K
22FF Q10%, 6.3V X5R ceramic
capacitor (0805)
Murata GRM21BR60J226K
TDK C2012X5R0J226K
C9, C11–C14,
C19, C23, C26,
C27, C28, C30,
C32
0.1FF Q10%, 50V X7R ceramic
capacitors (0603)
Murata GRM188R71H104K
TDK C1608X7R1H104K
Not installed, ceramic capacitor
(0805)
12
_______________________________________________________________ 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.
MAX17114 Evaluation Kit
Component List (continued)
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
82pF Q5%, 50V C0G ceramic
capacitor (0603)
Murata GRM1885C1H820J
Murata GRM1885C1H820G
10FH, 3A, 45mI inductor
(8.3mm x 9.5mm x 3mm)
Coiltronics (Cooper) SD8328-100-R
Sumida CDRH8D38NP-100N
(8.3mm x 8.3mm x 4mm)
C22
C24
C25
C29
1
1
1
1
L1
1
1FF Q10%, 10V X5R ceramic
capacitor (0402)
Murata GRM155R61A105K
TDK C1005X5R1A105K
4.7FH, 3A, 24.7mI inductor
(8.3mm x 9.5mm x 3mm)
Coiltronics (Cooper) SD8328-4R7-R
Sumida CDRH8D38NP-4R7N
(8.3mm x 8.3mm x 4mm)
L2
1
1
0.22FF Q10%, 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C224K
TDK C1608X7R1C224K
-30V, 0.056I p-channel MOSFET
(6 SC70 PowerPAK)
Vishay SiA421DJ
Q1
2.2FF Q10%, 25V X5R ceramic
capacitor (0805)
Murata GRM219R61E225KA
TDK C2012X5R1E225K
R1
1
1
2
1
3
1
1
24.9kI Q1% resistor (0603)
34.8kI Q1% resistor (0603)
13.3kI Q1% resistors (0603)
158kI Q1% resistor (0603)
0I resistors (0603)
R2
R3, R16
R4
1FF Q20%, 25V X5R ceramic
capacitor (0603)
Murata GRM188R61E105K
TDK C1608X5R1E105M
R5, R19, R20
R6
C31
C33
C34
1
0
1
10kI Q5% resistor (0603)
124kI Q1% resistor (0603)
R7
Not installed, ceramic capacitor
(0603)
R8, R9, R10,
R17, R18, R22
6
20kI Q1% resistors (0603)
R11
R12
R13
R14
R15
R21
R23
R24
1
1
1
1
1
1
1
1
1kI Q5% resistor (0603)
3I Q5% resistor (0603)
33pF Q5%, 50V C0G ceramic
capacitor (0603)
Murata GRM1885C1H330J
TDK C1608C0G1H330J
33.2kI Q1% resistor (0603)
2.21kI Q1% resistor (0603)
357kI Q1% resistor (0603)
221kI Q1% resistor (0603)
150kI Q1% resistor (0603)
23.7kI Q1% resistor (0603)
30V, 3A Schottky diodes (M flat)
Toshiba CMS02
D1, D2
2
3
30V, 200mA dual diodes (3 SOT23)
Zetex BAT54S
D3, D4, D5
Fairchild BAT54S
Internal switch buck and boost
regulator (48 TQFN-EP*)
Maxim MAX17114ETM+
U1
1
EN, DLY1, DRN,
SS, SUPN,
7
Test points
—
—
7
1
Shunts
SUPP, VREF_FB
PCB: MAX17114 EVALUATION KIT+
JU1, JU2, JU4,
JU6
4
2
2-pin headers
3-pin headers
*EP = Exposed pad.
JU3, JU5
2
______________________________________________________________________________________
MAX17114 Evaluation Kit
Component Suppliers
SUPPLIER
PHONE
WEBSITE
www.avxcorp.com
AVX Corporation
843-946-0238
916-941-1117
888-522-5372
864-963-6300
770-436-1300
847-545-6700
800-348-2496
847-803-6100
949-623-2900
402-563-6866
631-543-7100
Cooper Bussmann
www.cooperet.com
www.fairchildsemi.com
www.kemet.com
Fairchild Semiconductor
KEMET Corp.
Murata Electronics North America, Inc.
Sumida Corp.
www.murata-northamerica.com
www.sumida.com
Taiyo Yuden
www.t-yuden.com
TDK Corp.
www.component.tdk.com
www.toshiba.com/taec
www.vishay.com
Toshiba America Electronic Components, Inc.
Vishay
Zetex Semiconductors
www.zetex.com
Note: Indicate that you are using the MAX17114 when contacting these component suppliers.
Quick Start
Detailed Description of Hardware
Recommended Equipment
Jumper Settings
Several jumper settings in the following tables illustrate
features of the MAX17114 EV kit.
•ꢀ +8V to +16.5V, 3A DC power supply
•ꢀ Voltmeter
Frequency Selection FSEL (JU1)
The MAX17114 FSEL pin selects the switching frequency
of the step-up and step-down regulators. When a shunt
is installed across jumper JU1, the switching frequency
is set to 500kHz. When jumper JU1 is left open, the
switching frequency is set to 750kHz. See Table 1 for
jumper JU1 configuration.
Procedure
The MAX17114 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
1) Verify that shunts are not installed across jumpers
JU1, JU2, JU4, and JU6.
VCOM Loading (JU2)
The MAX17114 EV kit provides an optional load at the
output of the high-current op amp. This typical load can
be applied or removed by setting jumper JU2. See Table
2 for jumper JU2 configuration.
2) Verify that a shunt is installed across pins 1-2 of
jumper JU5 (enabled).
3) Connect the positive terminal of the power supply
to the VIN pad. Connect the negative terminal of the
power supply to the PGND pads closest to VIN.
4) Set the power supply VIN to +12V.
Table 1. Jumper JU1 Functions
5) Turn on the power supply and verify that the step-up
switching regulator output (AVDD) is +16V.
SHUNT
POSITION
SWITCHING
FREQUENCY (kHz)
FSEL PIN
Installed
Connected to GND
High impedance
500
750
6) Verify that the step-down switching regulator (OUT)
is +3.3V.
Not installed*
*Default position.
7) Verify that the positive charge-pump supply (VGON)
is approximately +35V.
Table 2. Jumper JU2 Functions
8) Verify that the negative charge-pump supply (VGOFF)
is approximately -6V.
SHUNT
VCOM
POSITION
OUTPUT
9) Verify that the output of the high-speed op amp
(VCOM) is approximately+ 8V.
Installed
Optional load applied
No-load condition
Not installed*
10) Verify that the output of the gamma reference (GREF)
is approximately +15.06V.
*Default position.
_______________________________________________________________________________________
3
MAX17114 Evaluation Kit
High-Voltage Switch-Control Block
Timing-Control Input Supply (JU3)
Enable Input EN (JU5)
The MAX17114’s enable input can be configured through
jumper JU5. When EN is high, the step-up regulator and
positive charge pump are enabled. When EN is low, the
step-up regulator and positive charge pump are dis-
abled. See Table 5 for jumper JU5 configuration.
The MAX17114’s high-voltage switch-control block is
controlled by GVOFF and XAO. XAO is pulled to VL by
default and jumper JU3 controls GVOFF. When JU3 is
set high, VGHM is connected to VGH. When GVOFF
is set low, VGHM is connected to DRN. When XAO is
triggered, VGHM pulls high to facilitate discharge to the
panel until there’s enough voltage on the VGH pin. See
Table 3 for jumper JU3 configuration.
Soft-Start Input Capacitance (JU6)
The MAX17114’s soft-start function can be done inter-
nally, when the capacitance on the SS pin is < 200pF, or
externally, when capacitance on the SS pin is > 200pF.
Jumper JU6 controls the soft-start function by giving the
option to connect a 0.1FF capacitor (C27) to the SS pin.
When a shunt is installed across JU6, C27 is connected
and the soft-start time can be calculated at ~25ms.
When there is not a shunt across JU6, the soft-start func-
tion is carried out internally at ~12ms. See Table 6 for
jumper JU6 configuration.
Step-Down Regulator Output Mode (JU4)
Jumper JU4 controls the output mode of the step-down
regulator (OUT). When a shunt is not installed across
JU4, the FB2 pin is pulled to GND through R18 and the
regulator provides a fixed +3.3V output. When a shunt
is installed across JU4, the FB2 pin is connected to the
center of a resistive voltage-divider between OUT and
GND to set the voltage at OUT. See Table 4 for jumper
JU4 configuration.
Output-Voltage Selection
The MAX17114 EV kit’s step-up switching-regulator
output (AVDD) is set to +16V by feedback resistors R3
and R4. To generate output voltages other than +16V,
select different external voltage-divider resistors, R3
and R4. Refer to the Step-Up Regulator, Output-Voltage
Selection section in the MAX17114 IC data sheet for
more information.
Table 3. Jumper JU3 Function
SHUNT
POSITION
GVOFF PIN
VGHM OUTPUT
VGHM connected
to VGH
1-2
Connected to VL
Connected to GND
VGHM connected
to DRN
2-3*
Table 5. Jumper JU5 Functions
*Default position.
SHUNT
POSITION
AVDD, VGON
OUTPUTS
EN PIN
Table 4. Jumper JU4 Function
1-2*
2-3
Connected to VIN
Connected to GND
Enabled
Disabled
SHUNT
STEP-DOWN
FB2 PIN
POSITION
OUTPUT MODE
*Default position.
Connected to center of a
resistive voltage-divider
between R17 and R18
Installed
Adjustable mode
Table 6. Jumper JU6 Functions
SHUNT
POSITION
SOFT START
CAPACITANCE
SOFT START
TIME
Not
installed*
Connected to GND
through R18
Fixed 3.3V mode
Installed
External
25ms
*Default position.
Not
Installed
Internal
12ms
*Default position.
4
______________________________________________________________________________________
MAX17114 Evaluation Kit
Figure 1. MAX17114 EV Kit Schematic
_______________________________________________________________________________________
5
MAX17114 Evaluation Kit
1.0”
1.0”
Figure 2. MAX17114 EV Kit Component Placement Guide—
Component Side
Figure 3. MAX17114 EV Kit PCB Layout—Component Side
1.0”
Figure 4. MAX17114 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.
6
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
©
相关型号：
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Analog Circuit, 1 Func, BICMOS, 5 X 5 MM, 0.75 MM HEIGHT, ROHS COMPLIANT, WHHD-2, TQFN-32
MAXIM
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