MAX6974EVKIT+

MAX6974EVKIT+ Datasheet

MAX6974 Evaluation Kit

Part	Datasheet
MAX6974EVKIT+	MAX6974EVKIT+ (pdf)

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MAX6974 Evaluation Kit Evaluates MAX6974 The MAX6974 evaluation kit EV kit is an assembled and tested printed circuit board PCB that demonstrates the MAX6974/ MAX6975 precision current-sinking, 24-output PWM LED drivers. The MAX6974/MAX6975 functionality can be evaluated using the MAX6974 EV kit. The MAX6975 has 14-bit individual PWM and 5-bit global PWM, while the MAX6974 has 12-bit individual PWM and 7-bit global PWM. The evaluation kit comes with a MAX6974ATL+ installed. The 98/2000/XP software supports only the MAX6974. Windows is a registered trademark of Microsoft Corp. Proven PCB Layout Complete Evaluation System Convenient On-Board Test Points Fully Assembled and Tested Multiplexed 4 x 8 RGB 96 LEDs Total 20mA LED Matrix Ordering Information PART TYPE INTERFACE REQUIREMENTS MAX6974EVKIT+ EV kit Windows PC with RS-232 serial port +Denotes a lead-free and RoHS-compliant EV kit. DESIGNATION QTY 1 100µF ±20%, 10V X5R capacitor 1812 TDK C4532X5R1A107M C2, C3 100µF ±20%, 6.3V X5R capacitors 1210 2 TDK C3225X5R0J107M C4, C5, C25 10µF ±10%, 6.3V X5R capacitors 0603 3 TDK C1608X5R0J106K 0.47µF ±10%, 6.3V X5R capacitors 0402 TDK C1005X5R0J474K 0.1µF ±10%, 6.3V X5R capacitors 0402 TDK C1005X5R0J104K C17, C18 0.001µF ±10%, 25V X5R capacitors 0402 TDK C1005X5R1E102K 120pF ±5%, 25V C0G capacitors 0402 TDK C1005C0G1E121J C23, C24 10pF ±5%, 25V C0G capacitors 0402 TDK C1005C0G1E100J 0.01µF ±10%, 6.3V X5R capacitor 0402 TDK C1005X5R1E103K RGB LED modules Stanley URGB1308B-10-TF 0 Not installed 1 2 x 5 right-angle receptacle 0.1in 1 2 x 5 right-angle male header 0.1in 0 Not installed Component List DESIGNATION QTY 13 2-pin headers 7 3-pin headers 1 Female DB9 connector R17 R18 R19 R20 U1, U2 pnp transistors Zetex FMMTL717TA SOT23 8 200Ω ±1% resistors 0603 4 182Ω ±1% resistors 0603 4 562Ω ±1% resistors 0603 1 4.99kΩ ±1% resistor 0402 1 9.53kΩ ±1% resistor 0402 1 249kΩ ±1% resistor 0402 1 267kΩ ±1% resistor 0402 0 Not installed For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at MAX6974 Evaluation Kit Evaluates MAX6974 DESIGNATION QTY RS-232 transceiver Maxim MAX3311EUB+ 10-pin U7, U8 LDO linear regulators Maxim MAX1658ESA+ 8-pin SO LDO linear regulator Maxim MAX1659ESA+ 8-pin SO µMAX is a registered trademark of Maxim Integrated Products, Inc. Component List continued DESIGNATION QTY 20MHz crystal Citizen HCM49-20.000MABJ-UT 32MHz oscillator ECS-3953M-320-B-TR 1 PCB MAX6974 evaluation kit+ 20 Shunts Component Suppliers SUPPLIER TDK Corp. Zetex USA PHONE 847-803-6100 631-543-7100 FAX 847-390-4405 631-864-7630 WEBSITE Note Indicate that you are using the MAX6974 when contacting these component suppliers. Quick Start Required Equipment Before you begin, you need the following equipment: • Maxim MAX6974EVKIT • DC power supply, 5VDC at 1A • Windows 98/2000/XP-compatible computer with a serial COM port • 9-pin I/O extension cable Procedure Do not turn on the power until all connections are complete. 1 Ensure that all jumpers are in 1-2 position see Table 2 Connect a 5VDC power source 7VDC maximum to the board at the VLED and GND terminals. 3 Connect a cable from the computer’s serial port to the EV kit. If using a 9-pin serial port, use a straightthrough, 9-pin female-to-male cable. If the only available serial port uses a 25-pin connector, a standard 25-pin-to-9-pin adapter is required. 4 Install the evaluation software on your computer by launching MAX6974.msi. The latest software can be found on Maxim’s website The program files are copied and icons are created for them in the Windows Start menu. 5 Turn on the power supply. None of the LEDs light up at this time. 6 Start the MAX6974 program by opening its icon in the Start menu. 7 In the Select Maxim MAX6974 Evaluation Kit Software Mode window, select Connect to EVKit on port Autodetect . Click OK. See Figure Verify that the blue M test pattern appears test_0_blue_M.clr . 8 From the File menu, select Load Test Patterns... and then pick the file test_01_all_white.clr. Verify that all 32 RGB LEDs light up in white. 9 In the LED0 color grid, double-click one of the large round color dots in the 4 x 8 grid or select one of the dots and click OK . The standard color selector dialog box appears. Select a color and click OK. Click Upload All to write the 4 x 8 color grid data to the board. Verify that the LEDs light up in colors corresponding to the software color grid settings. 10 Set Global Intensity to 5/63 and click Upload All. Verify that the LEDs are brighter. Detailed Description of Software The MAX6974 EV kit software controls one or more MAX6974 EV kit boards, each of which has two MAX6974s driving a 4 x 8 grid of LEDs. MAX6974 Evaluation Kit

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MAX6974 Evaluation Kit

Evaluates MAX6974

The MAX6974 evaluation kit EV kit is an assembled and tested printed circuit board PCB that demonstrates the MAX6974/ MAX6975 precision current-sinking, 24-output PWM LED drivers. The MAX6974/MAX6975 functionality can be evaluated using the MAX6974 EV kit. The MAX6975 has 14-bit individual PWM and 5-bit global PWM, while the MAX6974 has 12-bit individual PWM and 7-bit global PWM. The evaluation kit comes with a MAX6974ATL+ installed. The 98/2000/XP software supports only the MAX6974.

Windows is a registered trademark of Microsoft Corp.

Proven PCB Layout Complete Evaluation System Convenient On-Board Test Points Fully Assembled and Tested Multiplexed 4 x 8 RGB 96 LEDs Total 20mA LED

Matrix
Ordering Information

PART

TYPE INTERFACE REQUIREMENTS

MAX6974EVKIT+ EV kit Windows PC with RS-232 serial port
+Denotes a lead-free and RoHS-compliant EV kit.

DESIGNATION QTY
1 100µF ±20%, 10V X5R capacitor 1812

TDK C4532X5R1A107M

C2, C3
100µF ±20%, 6.3V X5R capacitors 1210 2 TDK C3225X5R0J107M

C4, C5, C25
10µF ±10%, 6.3V X5R capacitors 0603 3 TDK C1608X5R0J106K
0.47µF ±10%, 6.3V X5R capacitors 0402 TDK C1005X5R0J474K
0.1µF ±10%, 6.3V X5R capacitors 0402 TDK C1005X5R0J104K

C17, C18
0.001µF ±10%, 25V X5R capacitors 0402 TDK C1005X5R1E102K
120pF ±5%, 25V C0G capacitors 0402 TDK C1005C0G1E121J

C23, C24
10pF ±5%, 25V C0G capacitors 0402 TDK C1005C0G1E100J
0.01µF ±10%, 6.3V X5R capacitor 0402 TDK C1005X5R1E103K

RGB LED modules Stanley URGB1308B-10-TF
0 Not installed
1 2 x 5 right-angle receptacle 0.1in
1 2 x 5 right-angle male header 0.1in
0 Not installed

Component List

DESIGNATION QTY
13 2-pin headers
7 3-pin headers
1 Female DB9 connector

R17 R18 R19 R20

U1, U2
pnp transistors Zetex FMMTL717TA SOT23
8 200Ω ±1% resistors 0603
4 182Ω ±1% resistors 0603
4 562Ω ±1% resistors 0603
1 4.99kΩ ±1% resistor 0402
1 9.53kΩ ±1% resistor 0402
1 249kΩ ±1% resistor 0402
1 267kΩ ±1% resistor 0402
0 Not installed
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at

MAX6974 Evaluation Kit

Evaluates MAX6974

DESIGNATION QTY

RS-232 transceiver Maxim MAX3311EUB+ 10-pin

U7, U8

LDO linear regulators Maxim MAX1658ESA+ 8-pin SO

LDO linear regulator Maxim MAX1659ESA+ 8-pin SO
µMAX is a registered trademark of Maxim Integrated Products, Inc.

Component List continued

DESIGNATION QTY
20MHz crystal Citizen HCM49-20.000MABJ-UT
32MHz oscillator ECS-3953M-320-B-TR
1 PCB MAX6974 evaluation kit+
20 Shunts

Component Suppliers

SUPPLIER TDK Corp. Zetex USA

PHONE 847-803-6100 631-543-7100

FAX 847-390-4405 631-864-7630

WEBSITE

Note Indicate that you are using the MAX6974 when contacting these component suppliers.

Quick Start

Required Equipment Before you begin, you need the following equipment:
• Maxim MAX6974EVKIT
• DC power supply, 5VDC at 1A
• Windows 98/2000/XP-compatible computer with a serial COM port
• 9-pin I/O extension cable

Procedure Do not turn on the power until all connections are complete.
1 Ensure that all jumpers are in 1-2 position see Table
2 Connect a 5VDC power source 7VDC maximum to the board at the VLED and GND terminals.
3 Connect a cable from the computer’s serial port to the EV kit. If using a 9-pin serial port, use a straightthrough, 9-pin female-to-male cable. If the only available serial port uses a 25-pin connector, a standard 25-pin-to-9-pin adapter is required.
4 Install the evaluation software on your computer by launching MAX6974.msi. The latest software can be found on Maxim’s website The program files are copied and icons are created for them in the Windows Start menu.
5 Turn on the power supply. None of the LEDs light up at this time.
6 Start the MAX6974 program by opening its icon in the Start menu.
7 In the Select Maxim MAX6974 Evaluation Kit Software Mode window, select Connect to EVKit on port Autodetect . Click OK. See Figure Verify that the blue M test pattern appears test_0_blue_M.clr .
8 From the File menu, select Load Test Patterns... and then pick the file test_01_all_white.clr. Verify that all 32 RGB LEDs light up in white.
9 In the LED0 color grid, double-click one of the large round color dots in the 4 x 8 grid or select one of the dots and click OK . The standard color selector dialog box appears. Select a color and click OK. Click Upload All to write the 4 x 8 color grid data to the board. Verify that the LEDs light up in colors corresponding to the software color grid settings.
10 Set Global Intensity to 5/63 and click Upload All. Verify that the LEDs are brighter.

Detailed Description of Software

The MAX6974 EV kit software controls one or more MAX6974 EV kit boards, each of which has two MAX6974s driving a 4 x 8 grid of LEDs.

MAX6974 Evaluation Kit

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MAX6974EVKIT+ Datasheet file may be downloaded here without warranties.

Datasheet ID: MAX6974EVKIT+ 647384