TM MP7782 50W Class D Mono Bridged Audio Amplifier TM The Future of Analog IC Technology DESCRIPTION FEATURES The MP7782 is a mono, 50W Class D Audio 50W into 6 with V = 24V 10% THD+N DD Amplifier. It is one of MPS second generation 90% Efficiency at 50W fully integrated audio amplifiers which Amplifies Full Audio Range with Low THD+N dramatically reduces solution size by integrating THD+N = 0.06% 1W four 180m power MOSFETs in a space saving 9.5V to 24V Supply Voltage Operation TSSOP20 package. The MP7782 utilizes a full Full Bridge Output Drive bridge output structure capable of delivering 4 Integrated 180m Switches 50W into 6 speakers. As in all other MPS Turn-On / Turn-Off Click and Pop Suppression Class D audio amplifiers, this device exhibits Integrated Short Circuit Protection the high fidelity of a Class AB amplifier with an Integrated Thermal Shutdown efficiency of 90%. The circuit is based on TM Mute / Standby Mode ADAM (Analog Digital Adaptive Modulation), Thermally Enhanced 20-Pin TSSOP MPS proprietary variable frequency modulation Package with Exposed Pad topology (patents pending) that delivers excellent PSRR, fast response time and APPLICATIONS operates on a single power supply. MP3 Systems Surround Sound Systems EVALUATION BOARD REFERENCE Multimedia Computers Board Number Dimensions Televisions EV7782DF-00A 4.0X x 3.5Y x 1.0Z Home Stereos DVD and VCD Players Game Devices and Systems Subwoofers MPS and The Future of Analog IC Technology are Trademarks of Monolithic Power Systems, Inc. ADAM (Analog Digital Adaptive Modulation) is a Trademark of Monolithic Power Systems, Inc. TYPICAL APPLICATION V DD MP7782 + 1 20 100 NC PGND1 2 19 FB2 SW1 3 18 FB1 VDD1 AUDIO IN 10 4 17 AGND BS1 - 5 16 GND NC NC + 6 15 1 EN PGND2 7 14 FB2 SW2 8 13 FB1 VDD2 0.1 9 12 AGND BS2 10 11 EN EN NC OFF ON 0.01 0.1 1 10 100 OUTPUT POWER (W) MP7782-TAC01 MP7782-EC01 MP7782 Rev. 1.2 www.MonolithicPower.com 1 9/24/2007 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2007 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP7748S THD+N (%)TM MP7782 50W CLASS D MONO BRIDGED AUDIO AMPLIFIER (1) PACKAGE REFERENCE ABSOLUTE MAXIMUM RATINGS Supply Voltage V ...................................... 26V DD TOP VIEW BS Voltage.................. V 0.3V to V + 6.5V SW SW Enable Voltage V ........................ 0.3V to +6V EN NC* 1 20 PGND1 V , V , V ...........................1V to V + 1V SW FB2 FB1 DD FB2 2 19 SW1 AGND to PGND.......................... 0.3V to +0.3V FB1 3 18 VDD1 Junction Temperature...............................150C AGND 4 17 BS1 Lead Temperature ....................................260C Storage Temperature .............. 65 C to +150 C NC* 5 16 NC* (2) EN 6 15 PGND2 Recommended Operating Conditions FB2 7 14 SW2 Supply Voltage V .......................... 9.5V to 24V DD Operating Temperature T .........40 C to +85 C A FB1 8 13 VDD2 (3) AGND 9 12 BS2 Thermal Resistance JA JC EN 10 11 NC* TSSOP20F ............................. 40....... 6.... C/W Notes: EXPOSED PAD 1) Exceeding these ratings may damage the device. * ALL NC PINS SHOULD BE GROUNDED IN LAYOUT 2) The device is not guaranteed to function outside of its MP7782 PD01-TSSOP20F operating conditions. 3) Measured on approximately 1 square of 1 oz copper. Part Number* Package Temperature MP7782DF TSSOP20F 40 C to +85C For Tape & Reel, add suffix Z (eg. MP7782DFZ) * For Lead Free, add suffix LF (eg. MP7782DFLFZ) ELECTRICAL CHARACTERISTICS (V = 24V, V = 5V, T = +25C, unless otherwise noted.) DD EN A Parameter SymbolCondition Min Typ Max Units Supply Current Standby Current V = 0V 2 10 A EN Quiescent Current 3 6 mA Output Drivers SW On Resistance Sourcing and Sinking 0.18 Short Circuit Current Sourcing and Sinking 5.0 A Inputs FB1, FB2 0 V /2 V 1.5 V DD DD Input Common Mode Voltage Range FB1, FB2 V = V = 8V 1 5 A FB2 FB1 Input Current V Rising 1.4 2.0 V EN EN Enable Threshold Voltage V Falling 0.4 1.2 V EN EN Enable Input Current V = 5V 1 A EN Thermal Shutdown Thermal Shutdown Trip Point T Rising 150 C J Thermal Shutdown Hysteresis 30 C MP7782 Rev. 1.2 www.MonolithicPower.com 2 9/24/2007 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. 2007 MPS. All Rights Reserved. NOT RECOMMENDED FOR NEW DESIGNS REFER TO MP7748S