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| TM EV8042DF-00B High Current, Dual Channel Power Half-Bridge Evaluation Board The Future of Analog IC Technology TM GENERAL DESCRIPTION The EV8042DF-00B is the evaluation board for the MP8042, a high current, dual channel power half-bridge. It accepts PWM modulated inputs for operation. The MP8042 features a low current shutdown mode, standby mode, input under voltage protection, thermal shutdown and fault flag signal output. Each channel can be driven independently as stereo single-ended audio amplifiers, or driven complementary in a bridgetied load (BTL) audio amplifier configuration. Both channels of the driver interface with standard logic signals. The MP8042 is available in a 20-pin TSSOP (with Exposed Pad) package. FEATURES * * * * * * * * * * * * 5A Peak Current Output Up to 600KHz Switching Frequency Protected Integrated Power 150m Switches 30ns Switch Dead Time All Switches Current Limited Under Voltage Protection Thermal Protection 4A Quiescent Current at Shutdown Fault Output Flag Stereo Single-Ended: 20W/Channel, 4 Load Bridge Tied-Load Output Power: 40W, 8 Load Class D Audio Drivers APPLICATIONS "MPS" and "The Future of Analog IC Technology" are Trademarks of Monolithic Power Systems, Inc. ELECTRICAL SPECIFICATIONS Parameter Supply Voltage Peak Output Current Symbol VDD IPEAK Value 7.5 - 24 5 Units V A EV8042DF-00B EVALUATION BOARD (L x W x H) 4.0" x 3.5" x 1.0" (10.2cm x 8.9cm x 2.5cm) Board Number EV8042DF-00B MPS IC Number MP8042DF EV8042-00B Rev. 1.0 6/8/2006 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2006 MPS. All Rights Reserved. 1 TM EV8042DF-00B - HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE EVALUATION BOARD EVALUATION BOARD SCHEMATIC VCC VDD + PULL-UP GND VCC D1 4.7V GND 1 2 3 4 GND PWM1 5 GND STDBY 6 7 SHDWN 8 FAULT 9 10 NC CN1 U1 VDR1 20 19 18 17 16 15 14 13 12 11 D2 1N4148 BST1 AGND1 BST1 VCC D5 PWM1 PGND1 PWM1 GND PWM2 NC GND STDBY GND GND SHDWN NC FAULT STBY OUT1 PWM2 MP8042 VDD1 D4 SW1 OUT1 CN2 OUT1 FAULT NC C2 390pF VCC OUT2 OUT2 SHDWN VDD2 D6 AGND2 OUT2 NC PGND2 D7 BST2 SW2 VDR2 BST2 C13 390pF D3 1N4148 EV8042DF-00B BILL OF MATERIALS Qty Ref Value Description C1 2200F Electrolytic Cap.,35V, NHG C2, C13 390pF Ceramic Cap., 50V, X7R C3, C4 1F Ceramic Cap., 50V, X7R C5, C6 0.1F Ceramic Cap., 50V, X7R C7, C8 0.1F Ceramic Cap., 25V, X5R C9, C11 0.47F Film Cap., 50V, V-Series C10 1F Film Cap., 63V, V-Series C12 0.1F Ceramic Cap., 16V, X7R R1 4.7k Film Res., 5% R2, R3, R4 100k Film Res., 5% R5, R6 10 Ceramic Res., 5% D1 Diode Zener, 4.7V, 200mW D2, D3 Diode Switch, 75V, 200mW D4, D5, Diode Schottky, 30V, 1A D6, D7 L1, L2 10H Power Inductor, 7A CN1, CN2 Banana Jacks, Red and Black U1 Class D Audio Amplifier Package Radial SM0805 1210 0805 1206 Radial Radial 0603 0603 0603 SM0805 SOD-323 SOD-323 SMB Radial TSSOP-20 Manufacturer Panasonic Panasonic TDK TDK Panasonic Panasonic Panasonic TDK Panasonic Panasonic Panasonic Diodes Inc. Diodes Inc. IR Toko MPS Manufacturer P/N ECA-1VHG222 ECU-V1H391KBN C3225X7R1H105K C2012X7R1H104K ECJ-3VB1E104K ECQ-V1H474JL ECQ-V1J105JM C1608X7R1C104K ERJ-3GEYJ472V ERJ-3GEYJ104V ERJ-6GEYJ100V BZT52C4V7S-7 1N4148WS-7 MBRS130LTR 16RHBP-100M MP8042DF EV8042-00B Rev. 1.0 6/8/2006 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2006 MPS. All Rights Reserved. 2 TM EV8042DF-00B - HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE EVALUATION BOARD PRINTED CIRCUIT BOARD LAYOUT Figure 1--Top Silk Layer Figure 2--Top Layer Figure 3--Bottom Silk Layer Figure 4--Bottom Layer EV8042-00B Rev. 1.0 6/8/2006 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2006 MPS. All Rights Reserved. 3 TM EV8042DF-00B - HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE EVALUATION BOARD QUICK START GUIDE The EV8042DF-00B comes pre-configured to operate as a BTL (Bridge-Tied Load) audio power driver, where a complementary PWM modulated audio signal (PWM and PWM ) is used an input, and music is played to a speaker connected to the output. For BTL operation, follow the steps in the Quick Start Guide for BTL Operation section. For Single-Ended operation, make modifications and follow the steps as described in the Quick Start Guide for Single-Ended Operation section. Quick Start Guide for BTL (Bridge-Tied Load) Operation Input/Output Requirements 1. Power supply: 7.5V to 24V. 2. Complementary PWM Signal Source (PWM, PWM ). 3. Speaker Load: 4 or 8. Setup Condition for Operation 4. Connect the speaker between SPK_OUT1 and SPK_OUT2 terminals. 5. Connect a PWM signal source to PWM1 and the complementary signal source PWM to PWM2, respectively. Use the GND terminal between PWM1 and PWM2 as the ground connection for the PWM inputs. 6. Apply power to the board. 7. Audio should be heard through the speaker. Quick Start Guide for SE (Single-Ended) Operation Input/Output Requirements 1. Power supply: 7.5V to 24V. 2. Stereo PWM Signal Source. 3. Two Speaker Loads: 4 or 8 each. Setup Condition for Operation 4. Remove C10 and connect the speakers as shown in Figure 5. 5. Connect the stereo PWM signal source to the EV board. Connect channel 1 to PWM1 and channel 2 to PWM2, respectively. Use the GND terminals between PWM1 and PWM2 as the ground connections for the PWM inputs. 6. Apply power to the board. 7. Audio should be heard through the speakers. EV8042-00B Rev. 1.0 6/8/2006 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2006 MPS. All Rights Reserved. 4 TM EV8042DF-00B - HIGH CURRENT, DUAL CHANNEL POWER HALF-BRIDGE EVALUATION BOARD VDD PWM1 SPK_OUT1 LEFT PWM PWM AUDIO SIGNAL GND EV8042DF-00B VDD SPK_OUT2 RIGHT PWM PWM2 Figure 5--Setup for Single-Ended Operation 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. EV8042-00B Rev. 1.0 6/8/2006 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2006 MPS. All Rights Reserved. 5 |
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