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19-3525; Rev 0; 11/04
MAX1513 Evaluation Kit
General Description
The MAX1513 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that provides voltages and features required for active-matrix, thinfilm transistor (TFT), liquid-crystal displays. The EV kit contains a step-up switching regulator for TFT source driver supply, a positive two-stage charge pump and linear postregulator for the TFT gate-on (GON) supply, a negative one-stage charge pump and linear postregulator for the TFT gate-off (GOFF) supply, a gamma reference, and a low-voltage logic supply. The EV kit operates from a DC supply voltage of +2.7V to +5.5V. The step-up switching regulator is configured for a +15V output at 500mA from a +4.5V to +5.5V input voltage. The positive charge pump and postregulator are configured for a +25V output using a single-stage charge pump providing 25mA. The negative charge pump and postregulator are configured for a -10V output using a single charge-pump stage providing 50mA. The gamma reference is configured for +14.7V providing 50mA. The low-voltage logic linear regulator is configured for +3.3V providing 500mA. The MAX1513 EV kit demonstrates low-quiescent current and high efficiency (90%), and features overload protection for the input and all outputs. Up to 1.5MHz operation allows the use of tiny surface-mount components and results in a circuit height less than 1.8mm. The MAX1513 EV kit can be also used to evaluate the MAX1514, which is a MAX1513 without a gamma linearregulator controller and a buffer amplifier. +4.5V to +5.5V Input Range Output Voltages +15V Output at 500mA (Step-Up Switching Regulator) +25V Output at 25mA (Positive Charge Pump and Linear Postregulator) -10V Output at 50mA (Negative Charge Pump and Linear Postregulator) +14.7V Output at 50mA (Gamma Reference Regulator) +3.3V Output at 500mA (Low-Voltage Logic Supply) 90% Efficiency 1.5MHz Step-Up Switching Frequency (Selectable: 430kHz/750kHz/1.5MHz) Low-Profile Surface-Mount Components Fully Assembled and Tested
Features
Evaluates: MAX1513/MAX1514
Ordering Information
PART MAX1513EVKIT TEMP RANGE 0C to +70C IC PACKAGE 20 TQFN 4mm x 4mm
Note: To evaluate the MAX1514, request a MAX1514ETP free sample with the MAX1513 EV kit.
Component List
DESIGNATION QTY DESCRIPTION 10F 20%, 6.3V X5R ceramic capacitors (0805) Taiyo Yuden JMK212BJ106MG or TDK C2012X5R0J106M 10F 20%, 16V POSCAP (D10) Sanyo 16AQU10M 0.22F 10%, 50V X7R ceramic capacitor (0805) TDK C2012X7R1H224K Not installed, capacitor (0603) 2.2F 10%, 6.3V X5R ceramic capacitor (0603) Taiyo Yuden JMK107BJ225KA or TDK C1608X5R0J225K C15 1 DESIGNATION QTY DESCRIPTION 1F 10%, 10V X5R ceramic capacitor (0603) Taiyo Yuden LMK107BJ105KA TDK C1608X5R1A105K 0.1F 10%, 50V X7R ceramic capacitors (0603) TDK C1608X7R1H104K 0.47F 20%, 16V X5R ceramic capacitors (0603) TDK C1608X5R1C474M 0.47F 10%, 25V X7R ceramic capacitor (0805) TDK C2012X7R1E474K
C1, C7
2
C8
1
C2
1
C9-C12, C17-C21
9
C3 C4, C5
1 0
C13, C14
2
C6
1
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
MAX1513 Evaluation Kit Evaluates: MAX1513/MAX1514
Component List (continued)
DESIGNATION C16 QTY 1 DESCRIPTION 0.22F 10%, 10V X5R ceramic capacitor (0603) TDK C1608X5R1A224K 100F 20%, 16V aluminum electrolytic capacitor (6.3mm x 5mm) Sanyo 16MV100UAX 1.0A, 30V Schottky diode (S-flat) Nihon EP10QY03 (top mark Y9k) or Toshiba CRS02 (top mark S2) 200mA, 100V dual diodes (SOT23) Fairchild MMBT4148SE (top mark D4) or Central Semiconductor CMPD7000 (top mark C5C) Not installed, diode (SOT23) 2-pin header Not installed, 2-pin header (shorted by PC trace) Not installed, 3-pin header Not installed, 3-pin header (pins 1 and 2 are shorted by PC trace) 3-pin header 2.2H, 3.3A power inductor Sumida CLS7D16-2R2NC 3A, 20V n-channel MOSFET (SOT23) Fairchild FDN339AN (top mark 339) 3A, 60V pnp bipolar transistor (SOT-223) Fairchild NZT660 Q4, Q5 2 DESIGNATION QTY DESCRIPTION 200mA, 40V pnp bipolar transistors (SOT23) Fairchild MMBT3906 (top mark 2A) or Central Semiconductor CMPT3906 (top mark C2A) 200mA, 40V npn bipolar transistors (SOT23) Fairchild MMBT3904 (top mark 1A) or Central Semiconductor CMPT3904 (top mark C14) 110k 1% resistor (0603) 10k 1% resistors (0603) 249k 1% resistor (0603) 24.3k 1% resistor (0603) 191k 1% resistor (0603) 107k 1% resistor (0603) 16.5k 1% resistor (0603) 120k 5% resistor (0603) 100k 5% resistors (0603) 10 5% resistor (0603) Not installed, resistors (0603) 680 5% resistor (0603) 1.5k 5% resistor (0603) 3.6k 5% resistor (0603) 6.80k 5% resistor (0603) 909 1% resistor (0603) 182k 1% resistor (0603) 1M 1% resistor (0603) Shunts MAX1513 PC board MAX1513ETJ (4mm x 4mm 20-pin thin QFN)
Q2, Q3
2
C22
1
D1
1
R1 R2, R6, R8, R10 R3 R4 R5 R7 R9 R11 R12, R23 R13 R14, R20 R15 R16 R17 R18 R19 R21 R22 None None U1
1 4 1 1 1 1 1 1 2 1 0 1 1 1 1 1 1 1 2 1 1
D2, D3, D4
3
D5 JU1 JU2 JU3 JU4 JU5 L1 N1
0 1 0 0 0 1 1 1
Q1
1
Component Suppliers
SUPPLIER Central Semiconductor Fairchild Sanyo Sumida TDK Toshiba PHONE 631-435-1110 888-522-5372 619-661-6322 847-545-6700 847-803-6100 949-455-2000 FAX 631-435-1824 -- 619-661-1055 847-545-6720 847-390-4405 949-859-3963 WEBSITE www.centralsemi.com www.fairchildsemi.com www.sanyovideo.com www.sumida.com www.component.tdk.com www.toshiba.com/taec
Note: Indicate that you are using the MAX1513 when contacting these component suppliers. 2 _______________________________________________________________________________________
MAX1513 Evaluation Kit
Quick Start
The MAX1513 EV kit is fully assembled and tested. Follow these steps to verify board operation. Do not turn on the power supply until all connections are completed. tor, a linear regulator for gamma reference, and a linear regulator for low-voltage logic supply. The EV kit operates from a +4.5V to +5.5V DC power supply. The switching frequency is 1.5MHz. The step-up switching regulator (VMAIN) generates a +15V output and can provide at least 500mA from +4.5V to +5.5V. The TFT gate-on supply (GON) uses one of the two positive charge-pump stages to generate +25V and can deliver 25mA. The TFT gate-off supply (GOFF) uses a charge-pump stage to generate -10V and provides 50mA. The gamma reference (VGAM) is set to +14.7V using a linear regulator and an external pnp bipolar pass transistor and provides 50mA. The logic voltage supply (VLOG) is set to +3.3V using a linear regulator and an external pnp bipolar pass transistor and provides 500mA. All five outputs can be adjusted (refer to the Output Voltage Selection section in the MAX1513/MAX1514 IC data sheet).
Evaluates: MAX1513/MAX1514
Recommended Equipment
* * 4.5V to 5.5V, 3A DC power supply Voltmeters
Connections and Setup
1) Verify that there is no shunt across jumper JU1. 2) Verify that there is a shunt across pins 1 and 2 of JU5. 3) Connect the positive terminal of the power supply to the PIN pad. Connect the negative terminal of the power supply to the GND pad closest to PIN. 4) Turn on the power supply and verify that the stepup regulator output (VMAIN) is +15V. 5) Verify that the positive linear-regulator output (GON) is +25V. 6) Verify that the negative linear-regulator output (GOFF) is -10V. 7) Verify that the logic-supply linear-regulator output (VLOG) is +3.3V. 8) Verify that the gamma-reference linear-regulator output (VGAM) is +14.7V. For instructions on selecting the feedback resistors for other output voltages, refer to the Output Voltage Selection section in the MAX1513/MAX1514 IC data sheet.
Jumper Selection
Shutdown Mode
The MAX1513 EV kit features a shutdown mode that reduces the MAX1513 quiescent current to less than 150A. The 2-pin jumper JU1 and 3-pin jumper JU5 control the shutdown mode and the frequency selection for the MAX1513 EV kit. Table 1 lists the selectable jumpers' options.
Positive Charge Pumps
The positive charge pump of the MAX1513 EV kit features an option to cascade up to two charge pumps' stages. The first stage of the positive charge pump can be connected to the source from PIN or VMAIN. Jumpers JU2 and JU3 configure the number of stages and select the voltage source for the positive charge pump on the MAX1513 EV kit. Table 2 lists jumper JU2 and JU3 options. The default configuration of the
Detailed Description
The MAX1513 EV kit contains a step-up switching regulator, a positive two-stage charge pump with positive high-voltage linear regulator, a negative one-stage charge pump with negative high-voltage linear regula-
Table 1. Jumpers JU1 and JU5 Functions
JU5 SHUNT LOCATION Pins 1 and 2 (default) Pins 2 and 3 Not installed Don't care JU1 SHUNT LOCATION Not installed (default) Not installed Not installed Installed SDFR PIN Connected to PIN through R23 Connected to REF pin through R23 Floating Connected to GND MAX1513 EV KIT OUTPUT MAX1513 enabled with 1.5MHz switching frequency MAX1513 enabled with 750kHz switching frequency MAX1513 enabled with 430kHz switching frequency MAX1513 disabled
Note: For switching frequencies other than 1.5MHz, adjust inductor L1, output capacitor C2, and the current-sense components R20, C11, and R19. Refer to the Design Procedure section of the MAX1513/MAX1514 IC data sheet. _______________________________________________________________________________________ 3
MAX1513 Evaluation Kit Evaluates: MAX1513/MAX1514
Table 2. Jumpers JU2 and JU3 Functions
JU3 SHUNT LOCATION Not installed (default) Pins 1 and 2 Pins 2 and 3 JU2 SHUNT LOCATION Shorted by PC trace Not installed; PC trace Not installed; PC trace GON RANGE Up to 2 x VMAIN--voltage drops Up to 3 x VMAIN--voltage drops Up to PIN + 2 x VMAIN--voltage drops
charge pumps of the MAX1513 EV kit is a single charge pump powered from VMAIN. Refer to the Charge Pumps section of the MAX1513/MAX1514 IC data sheet for information on selecting a charge-pump configuration.
to the Output Voltage Selection section of the MAX1513/MAX1514 IC data sheet. Select an alternative output capacitor if GOFF is set for lower than C14's (16V) rating.
Output Voltage Selection
Step-Up Switching-Regulator Output Voltage
The MAX1513 EV kit's step-up switching-regulator output (VMAIN) is set to +15V by feedback resistors R1 and R2. To generate output voltages other than +15V, select different external voltage-divider resistors (R1, R2). Refer to the Output Voltage Selection section of the MAX1513/MAX1514 IC data sheet. Select an alternative output capacitor if VMAIN is set for higher than C2's (16V) rating.
Gamma Linear-Regulator Output Voltage
The MAX1513 EV kit's gamma linear-regulator output (VGAM) is set to +14.7V by feedback resistors R7 and R8. To generate output voltages other than +14.7V, select different external voltage-divider resistors (R7, R8). Refer to the Output Voltage Selection section of the MAX1513/MAX1514 IC data sheet. Select an alternative output capacitor if VGAM is set for higher than C13's (16V) rating.
Logic Voltage Supply Linear-Regulator Output Voltage
The MAX1513 EV kit's logic voltage supply linear-regulator output (VLOG) is set to +3.3V by feedback resistors R9 and R10. To generate output voltages other than +3.3V, select different external voltage-divider resistors (R9, R10) and an appropriate input voltage source. Refer to the Output Voltage Selection section of the MAX1513/MAX1514 IC data sheet.
Gate-On Linear-Regulator Output Voltage
The MAX1513 EV kit's positive linear-regulator output (GON) is set to +25V by feedback resistors R5 and R6. To generate output voltages other than +25V, select different external voltage-divider resistors (R5, R6) and adjust the charge-pump input source and number of stages accordingly. Refer to the Output Voltage Selection section of the MAX1513/MAX1514 IC data sheet.
Evaluating the MAX1514
To evaluate the MAX1514 with the MAX1513 EV kit, replace the MAX1513ETP with a MAX1514ETP.
Gate-Off Linear-Regulator Output Voltage
The MAX1513 EV kit's negative linear-regulator output (GOFF) is set to -10V by feedback resistors R3 and R4. To generate output voltages other than -10V, select different external voltage-divider resistors (R3, R4). Refer
4
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PIN 4.5V TO 5.5V C1 10F 6.3V JU3 OPEN GND JU2 OPEN (SHORTED BY PC TRACE) R19 909 1% PIN R20 OPEN 1 2 3 C2 10F 16V
L1 2.2H D1 VMAIN 15V AT 500mA
C22 100F 16V
GND
C11 O.1F 3 R2 18 D3 1 L R2 VN C17 0.1F C3 0.22F 50V A 3 C18 0.1F 1 L R2 3 D4 R13 10 CS+ CS3 IN GATE GND 2 SDFR FB R2 10k 1% 3 1 C4 OPEN R14 OPEN R17 3.6k 1 Q4 3 2 8 VMAIN D5 OPEN 20 JU1 7 DEL C9 0.1F R1 110k 1% 15 N1 2 16 1 17 C8 1F C21 0.1F 19 C19 0.1F L
Figure 1. MAX1513 EV Kit Schematic
C20 0.1F 1 D2 GON 25V AT 25mA JU5 R23 100k 1 2 3 GND REF
U1 MAX1513
9 DRVL DRVN 6 FBN R3 249k 1% C14 0.47F 16V
3 1
C6 2.2F 6.3V R15 680
Q1 10 FBL C7 10F 6.3V R9 R10 16.5k 10k 1% 1% R4 24.3k 1% REF REF 11 DRVG DRVP FBG R5 191k 1% GND 14 C16 0.22F 1
2
VLOG 3.3V AT 500mA
GOFF -10V AT 50mA
GND
VMAIN 1 R16 1.5k
GND
C10 0.1F
2
Q2
R18 6.8k
2 1 Q3 3 A C15 0.47F 25V
3 12 C13 0.47F 16V R7 R8 107k 10k 1% 1% FBP 13
VGAM 14.7V AT 50mA
GND
OUTB 4 OUTB 3 5
FBPB
SUPB
R6 10k 1%
VMAIN VMAIN R11 120k CAL C5 OPEN R12 100k C12 0.1F SUPB JU4 OPEN 3 3 2 1 Q5 2 1 R21 182k 1%
_______________________________________________________________________________________
GND R22 1M 1%
MAX1513 Evaluation Kit
5
MAX1513 Evaluation Kit Evaluates: MAX1513/MAX1514
Figure 2. MAX1513 EV Kit Component Placement Guide--Component Side
Figure 3. MAX1513 EV Kit PC Board Layout--Component Side
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MAX1513 Evaluation Kit Evaluates: MAX1513/MAX1514
Figure 4. MAX1513 EV Kit PC Board Layout--Layer 2 (GND)
Figure 5. MAX1513 EV Kit PC Board Layout--Layer 3
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MAX1513 Evaluation Kit Evaluates: MAX1513/MAX1514
Figure 6. MAX1513 EV Kit PC Board 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 (c) 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

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