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Evaluation Board User Guide

UG-139

One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com

ADP1650 Evaluation Board

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. A | Page 1 of 16

FEATURES

Input voltage: 2.7 V to 5.0 V

Evaluates single LED flash driver performance

C interface

Jumpers for measurement of flash LED current and supply

current

Evaluation software CD with measurement report included

GENERAL DESCRIPTION

The evaluation system is composed of a motherboard, daughter-

board, and LED subboard. The motherboard provides the I

signals from the PC USB port and generates the I/O voltages

and digital high and low signals for the daughterboard. For

overtemperature measurement, the daughterboard can be either

plugged directly into the motherboard or connected to the

motherboard via a ribbon cable.

The motherboard features a 3.3 V regulator and 2.8 V/1.8 V

regulators for VDDIO. The daughterboard contains jumpers

and test points for easy evaluation of the flash driver integrated

circuit (IC).

Operating details are provided in the ADP1650 data sheet,

which should be consulted in conjunction with this evaluation

board user guide.

Figure 1 shows the contents of the ADP1650-EVALZ kit, which

includes

• Cables: power (red/black), USB, 2× current measurements

• Samples: five ADP1650 devices, two FDSD3012 inductors

• LED boards: OSRAM LUWF65N, LumiLEDs PWF-4

The ADP1650-EVAL Z is intended for very detailed evaluation.

Contact a local sales office at Analog Devices, Inc., to request it.

ADP1650 EVALUATION BOARD KIT

09024-001

Figure 1.

Summary of content (16 pages)

PAGE 1
Evaluation Board User Guide UG-139 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com ADP1650 Evaluation Board FEATURES The motherboard features a 3.3 V regulator and 2.8 V/1.8 V regulators for VDDIO. The daughterboard contains jumpers and test points for easy evaluation of the flash driver integrated circuit (IC). Input voltage: 2.7 V to 5.
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UG-139 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Software or Hardware Strobe for Flash ......................................6 General Description ......................................................................... 1 Software or Hardware Torch ........................................................6 ADP1650 Evaluation Board Kit ......................................................
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Evaluation Board User Guide UG-139 EVALUATION BOARD SOFTWARE INSTALLING THE LABVIEW RUN-TIME ENGINE The LabVIEW™ run-time engine must be installed on the PC first unless LabVIEW 2009 is already installed. Insert the ADP1650-EVALZ setup CD into the CD-ROM and run LVRTE90STD.exe. INSTALLING ADP1650 EVALUATION SOFTWARE Insert the ADP1650-EVALZ setup CD into the CD-ROM and run Setup.exe. When the dialog box shown in Figure 2 appears, click Next. 09024-004 1. Figure 4.
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UG-139 Evaluation Board User Guide USB DRIVER INSTALLATION Plug the ADP1650 board into the computer using the USB cable provided with the evaluation kit. When the system recognizes the board, the Found New Hardware Wizard dialog box appears. Click Continue Anyway and then Finish to complete the driver installation. 09024-007 1. 3. 09024-006 Figure 7. New Hardware Installation Figure 6. New Hardware Wizard 2. Click Next to install the USB driver. Rev.
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Evaluation Board User Guide UG-139 USING THE SOFTWARE GUI HARDWARE CONFIGURATION AND MONITORS 2. Complete the following steps to load the ADP1650 evaluation software: 3. 4. 1. Before running the software, ensure that the motherboard is plugged into the computer USB port (the 3.3 V OK LED on the motherboard should light up). Ensure that the daughterboard is supplied with a source that can supply 3 A. Click the Start button at the bottom left on your desktop.
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UG-139 Evaluation Board User Guide LED CURRENT PROGRAMMING Before changing settings in the ADP1650 registers, you must enable the I2C interface by clicking the EN button in Section 8 of the user registers window (the button turns green and the EN LED on the motherboard lights up). This sets the EN pin of the ADP1650 high. INDICATOR LED MODE Strobe Enabled Flash – Using the STROBE Button on the Motherboard (Most Common) 1. 2. 3. 4. Set EN in Section 8 of the user registers window.
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Evaluation Board User Guide UG-139 FAULT DETECTION STATUS LOW VBAT Section 7 of the user registers window is used to read back the fault detection status from the ADP1650. Click Read 0x05 to view information about the fault. EN in Section 8 of the window must be high (green) to be in read mode. An overvoltage fault occurs when the output voltage is greater than 5.3 V (typical).
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UG-139 Evaluation Board User Guide EVALUATION BOARD OVERVIEW MOTHERBOARD USB SUPPLY FOR DAUGHTERBOARD (FOR DEMONSTRATION) CONNECTS MOTHERBOARD SIGNALS TO DAUGHTERBOARD ADP1712 LDOs FOR VDDIO 2.8V OR 1.8V SET I/O VOLTAGE 2.8V (DEFAULT) OR 1.8V ADP3303: 3.3V, 200mA LDO SUPPLY FOR CY68013A CY68013 A MICROCONTROLLER: PROVIDES USB-TO-I2C CONVERSION TORCH AND STROBE: USE PUSH-BUTTONS FOR EXTERNAL TORCH OR FLASH. BUTTONS MUST BE ENABLED FROM SOFTWARE GUI. 09024-009 USB MINI B TYPE CONNECTOR Figure 9.
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Evaluation Board User Guide UG-139 DEMO DAUGHTERBOARD 2.7V – 5.0V 3A MEASURE IBAT WITH SCOPE AND CURRENT PROBE SHORT THICK CABLES LED SUBBOARD GPIO2 FUNCTION GPIO2 > ILED GPIO2 > TxMASK2 NO JUMPER GPIO2 > USED FOR EXTERNAL VOLTAGE MODE OF ADC 09024-010 R3 = 0Ω MEASURE ILED WITH SCOPE AND CURRENT PROBE Figure 10. Demonstration Daughterboard The ADP1650 evaluation daughterboard is designed to quickly evaluate key parameters of the ADP1650 IC.
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UG-139 Evaluation Board User Guide POWER BOARD FROM USB PORT ONLY To power the motherboard via the USB for demonstration purposes without using an external supply, short Pin 1 and Pin 2 on both of the LK3 jumpers on the motherboard. Short Pin 1 and Pin 2 of J5 on the daughterboard. Figure 11 illustrates jumper settings for USB powered operation. Ensure that the LED current is less than 200 mA to avoid exceeding the 500 mA current limit of the USB.
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Evaluation Board User Guide UG-139 EVALUATION BOARD SCHEMATICS 09024-012 Figure 12. ADP1650 Evaluation Motherboard Schematic Rev.
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UG-139 Evaluation Board User Guide 09024-013 Figure 13. ADP1650 Evaluation Daughterboard Schematic Rev.
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UG-139 09024-014 Evaluation Board User Guide Figure 14. LED Subboard Rev.
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UG-139 Evaluation Board User Guide ORDERING INFORMATION BILL OF MATERIALS Table 1. Demo Daughterboard Bill of Materials Qty 2 Reference Designator C1, C2 1 1 1 1 R1 R2 R3 D1 1 6 1 1 1 1 D3 J1 to J5, J7 J6 J11 JP1 L1 15 TP1, TP10 to TP14, TP21, TP23 to TP28, TP30, TP31 U1 U2 1 1 Description Capacitor, MLCC, 10 μF, 6.3 V/4.0 V, 0603, X5R Resistor, open, 1%, 0805, 270 kΩ, SMD Resistor, open, 1%, 0603, 0 Ω, SMD Resistor, 0 Ω, 1%, 0402, 0.
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Evaluation Board User Guide Qty 1 1 2 1 1 2 7 UG-139 1 1 1 3 1 Reference Designator R67 R69 R154, R155 R165 R166 D5, D8 GPIO1, GPIO2-T, SCL, SCL-T, SDA, SDA-T, STROBE J13 J12 JP8 LK1, LK2, LK3 JP14 Description Resistor, 180 kΩ, 1%, 0402, SMD Resistor, 33 kΩ, 1%, 0402, SMD Resistor, 39 kΩ, 1%, 0603, SMD Resistor, 48.7 kΩ, 1%, 0603, SMD Resistor, 97.
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UG-139 Evaluation Board User Guide NOTES I2C refers to a communications protocol originally developed by Philips Semiconductors (now NXP Semiconductors). ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD.