MAX5946LEVKIT

19-3621; Rev 0; 1/05 MAX5946L Evaluation Kit/Evaluation System The MAX5946L evaluation kit (EV kit) is a fully assembled and tested surface-mount, dual hot-plug controller circuit board for two PCI Express™ hot-plug slots. The circuit uses a MAX5946L IC in a 36-pin thin QFN package. The EV kit provides independent power control for the 12V, 3.3V, and 3.3V auxiliary outputs at two PCI Express-16 connectors. The EV kit demonstrates the MAX5946L IC’s inrush current control, output overcurrent/short-circuit protection, and input undervoltage monitoring features. The MAX5946L IC controls two separate external n-channel MOSFETs for the 12V and 3.3V outputs of each channel, respectively. Additionally, the MAX5946L has two internal MOSFETs that control the 3.3V auxiliary outputs of channels A and B. Switches on the EV kit are provided to independently enable/disable each channels’ 12V/3.3V and 3.3V auxiliary supply. The MAX5946L EV kit can be reconfigured to evaluate an x1, x4, or x8 PCI Express dual hot-plug design. Alternatively, the EV kit can also be used to demonstrate the MAX5946L hot-plug features without using the PCI Express-16 connectors. The EV kit includes a MAX7313 I/O expander that enables communication through an SMBus™ interface for the MAX5946L signals and some of the PCI Express channel A and B signals. An SMBus interface board (CMODUSB) can be used to enable PC communication through the SMBus interface. Simple Windows 98/2000/XP®-compatible software is provided to access the MAX7313 I/O expander registers at the bit level. The MAX5946L EV kit can be used in local control without any software. Order the MAX5946LEVCMODU for a complete PCbased evaluation of the MAX5946L. Order the MAX5946LEVKIT if you already have a CMODUSB SMBus interface board or do not require PC-based evaluation of the MAX5946L. Features ♦ Demonstrates PCI Express-16 Dual Hot-Plug Design ♦ Independent Output Controls for Each Channel ♦ 12V at Up to 5.5A (Adjustable) ♦ 3.3V at Up to 3A (Adjustable) ♦ 3.3VAux at Up to 0.375A ♦ Evaluates Hot-Plugging PCI Express x1, x4, x8, or x16 Cards ♦ Demonstrates Input Inrush-Current Control ♦ Demonstrates Output Overcurrent/Short-Circuit Protection ♦ Monitors Input Undervoltage for 12V, 3.3V, and 3.3VAux with Status Reports ♦ Configurable Power-On Reset (POR) ♦ Independent On/Off Controls for Channels A/B (12V/3.3V and 3.3VAux) ♦ Independent +3.3VAux Output with Separate On/Off Control ♦ Latched Output after Fault Conditions (12V, 3.3V, 3.3VAux) ♦ Input/Output Interface Using a MAX7313 I/O Expander (SMBus Interface) or Local Control ♦ Controlled Locally without Software ♦ Windows 98/2000/XP-Compatible Software ♦ Surface-Mount Components ♦ Fully Assembled and Tested PCI Express is a trademark of PCI-SIG Corp. SMBus is a trademark of Intel Corp. Windows is a registered trademark of Microsoft Corp. Ordering Information TEMP RANGE PART 0°C to +70°C 36-Thin QFN-EP* Not Included MAX5946LEVCMODU 0°C to +70°C 36-Thin QFN-EP* CMODUSB MAX5946LEVKIT MAX5946LEVCMODU (MAX5946L EV System) Component List SMBus IC INTERFACE PACKAGE TYPE PART QTY DESCRIPTION MAX5946LEVKIT 1 MAX5946L evaluation kit CMODUSB 1 SBMus interface board *EP = Exposed paddle. Note: The MAX5946L EV kit software is provided with the MAX5946LEVKIT. However, the CMODUSB interface board is required to interface the EV kit to the computer when using the software. ________________________________________________________________ Maxim Integrated Products 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. 1 Evaluate: MAX5946A/MAX5946L General Description Evaluate: MAX5946A/MAX5946L MAX5946L Evaluation Kit/Evaluation System Component List DESIGNATION QTY R3, R4 2 0.005Ω ±1%, 0.5W sense resistors (2010) Vishay WSL2010R005F 3300µF, 6.3V low-Z electrolytic capacitor (12.5mm x 13.5mm case) Sanyo 6.3CV3300KX R5, R8, R19, R20, R21, R26, R27, R34–R37 0 Not installed, resistors (0805) 3 10µF ±20%, 25V X7R ceramic capacitors (1812) TDK 4532X7R1E106M R6, R7, R9–R12, R15, R16, R22, R23, R24 11 10kΩ ±5% resistors (0603) 7 1µF ±10%, 16V X7R ceramic capacitors (0805) Murata GRM21BR71C105K R13, R14, R17, R18, R28, R29, R32, R33 8 150Ω ±5% resistors (0603) R25 1 750Ω ±1% resistor (1210) 2 0.1µF ±10%, 16V X7R ceramic capacitors (0603) Murata GRM188R71C104K R30, R31 2 1kΩ ±5% resistors (1206) R38–R41 4 51kΩ ±5% resistors (0603) R42, R43 2 3.3kΩ ±5% resistors (0603) SW1, SW2 2 SPST momentary-contact switches SW3–SW6 4 SPDT slide switches TP1–TP4, TP6–TP10, TP21, TP22, TP27, TP28 13 PC test points, red TP5, TP11, TP12, TP15–TP20, TP29, TP30 11 PC test points, black TP13, TP14, TP23–TP26 6 PC test points, miniature, red U1 1 MAX5946LETX (36-pin thin QFN, 6mm x 6mm) U2 1 16-port I/O expander (24-pin thin QFN, 4mm x 4mm) Maxim MAX7313ATG VIN1, VIN2, VIN3, GND, GND 5 Uninsulated banana jacks None 8 Shunts (JU1–JU8) None 5 Rubber bumpers None 1 MAX5946L evaluation kit software CD-ROM DESIGNATION QTY C1 1 1500µF, 16V electrolytic capacitor (12.5mm x 13.5mm case) Panasonic EEVFK1C152Q C2 1 C3, C7, C8 C4, C13–C18 C5, C6 C9–C12 Not installed, ceramic capacitors (0805) D1, D2, D3, D6–D10 8 Green surface-mount LEDs (1206) D4, D5 2 Yellow surface-mount LEDs (1206) 1 1A, 40V Schottky diode (SOD-123) Diodes Inc. 1N5819HW J1, J2 2 PCI Express-16 connectors Molex 87715-3305 J3 1 16-pin header J4 1 2 x 10 right-angle female receptacle JU1–JU4 4 2-pin headers JU5–JU8 4 3-pin headers 4 20V, 13.4A n-channel MOSFETs (SO-8) Vishay Si7448DP-T1 2 0.008Ω ±2%, 0.5W sense resistors (2010) IRC LRC-LRF2010-01-R008-G or Vishay WSL20108L600F D11 N1–N4 R1, R2 2 0 DESCRIPTION DESCRIPTION _______________________________________________________________________________________ MAX5946L Evaluation Kit/Evaluation System SUPPLIER PHONE FAX WEBSITE Diodes Inc. 805-446-4800 805-446-4850 www.diodes.com IRC 361-992-7900 361-992-3377 www.irctt.com Murata 770-436-1300 770-436-3030 www.murata.com Panasonic 714-373-7366 714-737-7323 www.panasonic.com Sanyo Electronic Device 619-661-6835 619-661-1055 www.sanyodevice.com TDK 847-803-6100 847-390-4405 www.component.tdk.com — — Vishay www.vishay.com Note: Indicate that you are using the MAX5946L when contacting these component suppliers. Quick Start Required Equipment • One each of the following DC power supplies: 12V at 12A (the 12V supply must be rated 12A or higher) • 3.3V at 10A Three voltmeters The 3.3V power supply can be used to power the main 3.3V and 3.3V_AUX inputs. The MAX5946L 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. Note: The banana leads connecting the 12V and 3.3V power supply to the EV kit must be short (