EV6400DJ-00A Programmable-Delay Supervisory Circuit Evaluation Board The Future of Analog IC Technology DESCRIPTION FEATURES The EV6400DJ-00A is an evaluation board of MP6400. It is designed for voltage supervisory application with low quiescent current and programmable RESET delay time. The circuit monitors the sense voltage (Vsen) with Vcc from 1.8V to 6V. The MR (Manual Reset) function could introduce an external digital signal to control the RESET output. The RESET delay time could be programmed by the external capacitor. • • The monitored voltage Vsen could be set from 0.4V through R1 and R2, and the delay time could be programmable from 2.1ms to 10s through C2. On the EV6400DJ-00A, the monitored voltage is set at 3.3V and RESET delay time at 100ms. • • Adjustable Monitored Voltage from 0.4V Programmable Reset Delay Time from 2.1ms to 10s Optional Manual Reset Immune to Short Negative Sense Voltage APPLICATIONS • • • • • DSP or Micro controller Applications Laptop/Desktop Computers PDAs/Hand-Held Products Portable/Battery-Powered Products FPGA/ASIC Applications “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. ELECTRICAL SPECIFICATIONS Parameter Input Voltage Range Sense Voltage Range Symbol Value Units Vcc Vsen 1.8 – 6 3.3 V V EV6400DJ-00A EVALUATION BOARD Dimensions (2.0”X x 2.0”Y x 0.5”Z) (5.0cm X 5.0cm X 1.2cm) Board Number EV6400DJ-00A EV6400DJ-00A Rev. 1.1 12/11/2009 MPS IC Number MP6400DJ www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2009 MPS. All Rights Reserved. 1 EV6400DJ-00A –PROGRAMMABLE-DELAY SUPERVISORY CIRCUIT EVALUATION BOARD EVALUATION BOARD SCHEMATIC Vsen Vsen VCC VCC C3 0.1uF C5 1uF VCC R4 NC 6 VCC 3 MR R6 NC R7 NC GND M1 NC SENSE MR 5 MP6400 4 C2 10nF CDELAY RESET C1 10nF 1 C4 47pF GND Vreset 2 GND Cdelay GND EV6400DJ-00A BILL OF MATERIALS Qty 2 1 1 1 1 1 1 3 1 1 Ref C1, C2 C3 C4 C5 R1 R2 R3 R4, R6, R7 R5 M1 U1 Value 10nF 0.1uF 47pF 1uF 143kΩ 20kΩ 100kΩ EV6400DJ-00A Rev. 1.1 12/11/2009 Description Ceramic Cap., 16V, X7R Ceramic Cap., 16V, X7R Ceramic Cap., 50V, C0G Ceramic Cap., 10V, X7R Film Res., 1% Film Res., 1% Film Res., 1% Package Manufacturer Manufacturer P/N SM0603 SM0603 SM0603 SM0603 SM0603 SM0603 SM0603 Murata Murata Murata Murata Yageo Yageo Yageo GRM188R71C103KA01D GRM188R71C104KA01D GRM1885C1H470JA01D GRM188R71A105KA61D RC0603FR-07143KL RC0603FR-0720KL RC0603FR-07100KL SM0603 Yageo RC0603FR-070RL TSOT-6 MPS Do Not Stuff 0Ω Film Res., 1% Do Not Stuff Supervisory Circuit MP6400DJ www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2009 MPS. All Rights Reserved. 2 EV6400DJ-00A –PROGRAMMABLE-DELAY SUPERVISORY CIRCUIT EVALUATION BOARD PRINTED CIRCUIT BOARD LAYOUT Figure 1—Top Silk Layer Figure 2—Top Layer EV6400DJ-00A Rev. 1.1 12/11/2009 Figure 3—Bottom Layer www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2009 MPS. All Rights Reserved. 3 EV6400DJ-00A –PROGRAMMABLE-DELAY SUPERVISORY CIRCUIT EVALUATION BOARD QUICK START GUIDE (ADJUSTABLE VERSION) 1. Attach the positive and negative ends of the monitored voltage to the Vsen and GND pins, respectively. 2. Attach the input voltage (1.8V ≤ VCC ≤ 6V) and input ground to the Vcc and GND pins, respectively. 3. To use the MR function, apply a digital input to the MR pin. Drive MR higher than 0.7Vcc to turn on the supervisory circuit or less than 0.25Vcc to turn it off. The MR is connected to Vcc through a 90kΩ resistor inside of the chip. Floating the MR pin means high. 4. To adjust the monitored voltage Vsen, change the values of R1 and R2. Ω ( − V 4 . 0 1 R = n e s V V k4 0. 20 For R2 = 20kΩ, R1 can be determined by: ) QUICK START GUIDE (FIXED VERSION) For modifying the EV6400DJ-00A to accommodate a fixed version of the MP6400: 1. Carefully remove the IC(U1) and replace it with the corresponding fixed version of the MP6400 chip. 2. Remove both R1 and R2. 3. Short R1 while leaving R2 open. 4. Attach the positive and negative ends of the monitored voltage to the Vsen and GND pins, respectively. 5. Attach the input voltage (1.8V ≤ VCC ≤ 6V) and input ground to the Vcc and GND pins, respectively. 6. To use the MR function, apply a digital input to the MR pin. Drive MR higher than 0.7Vcc to turn on the supervisory circuit or less than 0.25Vcc to turn it off. The MR is connected to Vcc through a 90kΩ resistor inside of the chip. Floating the MR pin means high. NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. EV6400DJ-00A Rev. 1.1 12/11/2009 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2009 MPS. All Rights Reserved. 4