DS9481R MAXIM | Alldatasheet

Document overview

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Technical content

Features

S Driver Support for Windows® 7, Windows Vista®, and Windows XP® Operating Systems S Enumerates as a Virtual PC COM Port by Use of the Prolific PL-2303HXD USB-to-UART Bridge IC S Emulates the DS2480B 1-Wire Line Driving Functionality S 1-Wire OTP/EPROM Programming Provided Without the Need of an External Power Supply (12V on OW, 7V on PULSE) S 3.3V Read/Write Operation to 1-Wire/ iButton Devices S RJ11 Interface for Standard Connectivity Accessories such as the DS9120 Socket Adapter S Supports Standard and Overdrive 1-Wire Communication S Provides Strong Pullup to 3.3V S Fully Compliant with USB 2.0 Specification S Windows XP Certified Logo Drivers DS9481R USB-to-1-Wire/iButton Adapter 19-5608; Rev 0; 10/10

Ordering Information

+Denotes lead(Pb)-free and RoHS compliant. Adapter Contents 1-Wire and iButton are registered trademarks of Maxim Integrated Products, Inc. Windows, Windows Vista, and Windows XP are registered trademarks of Microsoft Corp. QTY DESCRIPTION

1 USB-to-1-Wire adapter

1 USB Type A-to-USB Mini-Type B cable

Qualtek Electronics Corp. 3021003-03 PART TYPE DS9481R-3C7+ Adapter For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

Evaluates: 1-Wire Slave and iButton Devices DS9481R USB-to-1-Wire/iButton Adapter Component List DESIGNATION QTY DESCRIPTION C1, C6, C21 3 4.7FF, 16V Y5V ceramic capacitors (0805) TDK Corp. C2012Y5V1C475Z C2, C3 2 2.2FF, 16V Y5V ceramic capacitors (0805) Murata GRM21BF51C225ZA01L C4, C7 2 0.22FF Q10%, 16V X7R ceramic capacitors (0603) TDK Corp. C1608X7R1C224K C5, C15, C22 3 10nF ±5%, 16V X7R ceramic capacitors (0603) AVX 06035C103JAT2A C8, C11-C14, C20, C23 7 0.1FF, 16V X7R ceramic capacitors (0603) KEMET C0603C104K4RACTU C10 1 10FF, 10V Y5V ceramic capacitor (0805) TDK Corp. C2012Y5V1C106Z C16 0 Do not populate, 470pF ceramic capacitor (0603) C17 1 1FF, 10V X7R ceramic capacitor (0603) Taiyo Yuden LMK107B7105KA-T C19 1 10pF, 16V NP0 ceramic capacitor (0603) TDK Corp. C1608C0G1H100D C9, C24, C25 0 Do not populate, capacitors CN1 1 USB Mini-AB connector, right-angle, SMD, 5-position JAE Electronics DX3R005HN2E700 D1 1 30V, 200mA Schottky diode (SOT23) Diodes Inc./Zetex BAT54TA D2 1 15V, 350mA zener diode (SOT23) Diodes Inc. MMBZ5245B-7-F D3 1 Orange LED (TSS type) (0603) Panasonic/SSG LNJ812R83RA D4 1 Dual CC Schottky diode (SOT23) Diodes Inc./Zetex BAT54CTA DESIGNATION QTY DESCRIPTION FB1, FB2 2 220W, 2000mA ferrite chips (0805) Murata BLM21PG221SN1D J1 1 6-position, right-angle, PCB- mounted jack Tyco 5520425-3 J2 0 Do not populate, JTAG connector Q1, Q3 2 130mA, 50V p-channel MOSFETs (SOT23-3) Fairchild Semiconductor BSS84 Q2, Q4, Q5, Q7 4 115mA, 60V n-channel MOSFETs (SOT23) Diodes, Inc. 2N7002-7-F Q6 1 3.9A, 20V p-channel MOSFET (SOT23) NXP PMV65XP,215 R1, R29 0 Do not populate, resistors R2, R3, R5 3 27I Q1%, 1/10W SMD resistors (0603) Yageo RC0603FR-0727RL R4, R16, R21 3 1.5kI Q1%, 1/10W SMD resistors (0603) Panasonic ECG ERJ-3EKF1501V R6, R24 2 10kI Q1%, 1/10W SMD resistors (0603) Yageo RC0603FR-0710KL R7, R14, R26 3 1kI Q1%, 1/10W SMD resistors (0603) Yageo RC0603FR-071KL R8, R13, R17, R20, R27, R30 5 100kI Q1%, 1/10W SMD resistors (0603) Yageo RC0603FR-07100KL R9 1 750I Q5%, 1/10W SMD resistor (0603) Yageo RC0603FR-07750RL R10 1 0I Q1%, 1/10W SMD resistor (0603) Panasonic ECG ERJ-3GEY0R00V

Evaluates: 1-Wire Slave and iButton Devices DS9481R USB-to-1-Wire/iButton Adapter Component List (continued) *EP = Exposed pad. TinyLogic is a registered trademark of Fairchild Semiconductor. DESIGNATION QTY DESCRIPTION R11 1 33I Q1%, 0.1W SMD resistor (0603) Rohm MCR03EZPFX33R0 R12, R15, R22 3 4.99I Q1%, 1/10W SMD resistors (0603) Yageo RC0603FR-074R99L R18 1 2.2kI Q5%, 1/10W SMD resistor (0603) Stackpole Electronics RMCF 1/16 2.2K 1% R R23 1 51kI Q0.1%, 1/10W SMD resistor (0603) Panasonic ECG ERA-3AEB513V R25 1 11kI Q0.1%, 1/10W SMD resistor (0603) Vishay/Dale TNPW060311K0BEEA R28 1 10I Q1%, 1/10W SMD resistor (0603) Yageo RC0603FR-0710RL R31 1 32.4kI Q1%, 1/10W SMD resistor (0603) Vishay/Dale TNPW060332K4BEEA R32 1 30.1kI Q0.1%, 1/10W SMD resistor (0603) Panasonic ECG ERJ-3EKF3012V R33 1 50kI Q1%, 1/10W SMD resistor (0603) Panasonic ECG ERJ-3EKF4992V RT1 1 0.12A, 30V PTC resettable fuse (1206) Bourns MF-NSMF012-2 DESIGNATION QTY DESCRIPTION SW1 0 Do not populate, switch U1 1 Low-dropout, 300mA linear regulator (5 SOT23) Maxim MAX8887EZK33+T (Top Mark: ADPZ) U2 1 12V, 30mA Flash memory programming supply (8 SO) Maxim MAX662ACSA+ U3 1 TinyLogic M UHS inverter (5 SOT23) Fairchild NC7SZ04M5X U4 0 Do not populate, Silicon oscillator (3 SC70) Maxim MAX7381AXR126-T U5 1 USB-to-serial bridge controller (28 SSOP) Prolific PL-2303HXD SSOP U6 1 16-bit microcontroller with infrared module (32 TQFN-EP*) Maxim MAXQ610A-9410+ U7 1 2-channel ESD protector (6 FDFN) Maxim MAX13204EALT+ (Top Mark: BV) U8 1 High-voltage, low-power linear regulators (5 SOT23) Maxim MAX1616EUK+ (Top Mark: ABZD) U9 1 1.8V comparator (5 SOT23) STMicroelectronics TS3021ILT — 1 PCB: DS9481R REV A3

  • Maxim DS9481R (included in adapter)
  • USB type-A to USB Mini type-B cable (included in adapter)
  • RJ11 cable assembly (not included)
  • PC with a Windows 7, Windows Vista, or Windows XP OS and a spare USB port Note: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly from the adapter software. Text in bold and underlined refers to items from the Windows operating system. Procedure 1) Do the following to install the PL-2303HXD Prolific driver: a) Download either the driver file called PL2303_ Prolific_DriverInstaller_v130.ZIP or the latest version from http://www.prolific.com.tw/eng/ downloads.asp?ID=31. b) Open and Run either the file called PL2303_ Prolific_DriverInstaller_v110.EXE or the latest version. c) Follow the directions of the Install Wizard until Finish is reached for the PL-2303 USB-to-serial driver installation. Close by clicking the Finish button. 2) Do the following to install the 1-Wire drivers: a) Go to the 1 -Wire Drivers—Getting Started webpage at www.maximintegrated.com/1- wiredrivers. b) Click on the Click to go to Download Page button. c) From the Choose Operating System drop-down list, select your OS. d) From the Select File drop-down list, select 32-bit or 64-bit 1-Wire drivers for the architecture being used by your OS. e) Click the Download button. f) When prompted by the question Do you want to run or save this file?, select Run. g) When you get a security warning that says Do you want to run the software?, select Run. h) Read and check the box if you accept the license agreement and click Install. i) Click the Finish button to exit the Setup Wizard. 3) The DS9481R USB-to-1-Wire adapter uses both the Prolific PL-2303HXD and the Maxim MAXQ610 to emulate a virtual COM-to-1-Wire port on any PC. Find the enumeration of the virtual COM port by inserting the DS9481R into a spare USB port on the com - puter. Determine the COM port by looking in Control Panel→System→Hardware→Device Manager and

Figure 1. DS9481R USB-to-1-Wire/iButton Adapter and Cable

https://support.maximintegrated.com/1-Wire. provide the needed programming pulse for OTP parts. usage and is functionally not used by the DS9481R. at CN1 of the DS9481R PCB, as shown in Table 2. Figure 2. DS9481R COM Port Figure 3. 1-Wire RJ11 Port Table 1. 1-Wire RJ11 Pinout Table 2. Mini-USB Type AB USB Pinout

2 GND

3 OW (DATA)

4 OWGND

5 PULSE

2 DMCN

3 DPCN

5 GND

Figure 4. DS9481R Adapter Board Schematic

  1. TIE U6.19 TO GROUND from Rev A1 to A2
  2. Rev A2 - 9 volt program con/f_iguration R26 = 1Meg/0603
  3. Rev A2 - 9 volt program con/f_iguration C22 = 0.1uF/0603/16v
  4. Rev A3 - Flipped the nets on D4 so that a standard BAT54 can be used in alternate con/f_igurations
  5. Rev A3 - Added a 1206 footprint in parallel to R9 for ease of soldering in new values
  6. Rev A3 - Added miller cap to the gate of Q5 & Q7
  7. Rev A3 - Changed footprint of U6 to a TQFN package
  8. Rev A3 - Changed the footprint of RT1 to 1206 and part number cut costs on materials
  9. Rev A3 - Component values inBLUE are for regular builds. Values in GREEN are for DS28E500 builds

Figure 5. DS9481R Adapter Enclosure Dimensions

Figure 6. DS9481R Adapter Board—Composite Layout

Evaluates: 1-Wire Slave and iButton Devices DS9481R USB-to-1-Wire/iButton Adapter Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 9 © 2010 Maxim Integrated Products, Inc. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.

Revision History

0 10/10 Initial release —