CM8685 5W MONO CLASS D PLUS TM AUDIO AMPLIFIER

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1 GENERAL DESCRIPTION The CM5/G is a single channel monolithic Class D Plus TM Audio Amplifier IC that using Champion s unique close loop and feed forward compensation techniques to achieve better THD+N. The CM5/G integrated four power MOSFETs to drive bridge tight load output. They are guaranteed no shot through, adaptively control break before make. The CM5/G can deliver peak output power of up to 5 watts at Ω load in the high fidelity range (0 Hz to 0kHz). The CM5/G incorporated a green mode function to ensure high efficiency at light load and full load. The CM5/G has the optimal high efficiency of up to 90% and no heat sink required. The efficient Class D Plus TM enables the CM5/G to operate at full power into 4Ω loads at an ambient temperature of 40. FEATURES Patent Filed #,45, Wide input range of.0v to 5.0V pin PSOP & PDIP package Integrated power MOSFETs Reduce system cost with no heat sink Close Loop and Feed Forward compensation Efficiency of up to 90% Dramatically improves efficiency versus Class-AB Excellent bass frequency without big bypass DC blocking capacitor Ultra low shut down current (ua) Ultra low operation current without load (ma) Internal Thermal Protection Low supply current of ma makes the device ideal for battery-powered applications. CM5/G is packaged in a -pin PSOP and PDIP package saves the system space. 4 Hours Technical Support---WebSIM Champion provides customers an online circuit simulation tool called WebSIM. You could simply logon our website at for details. APPLICATIONS PIN CONFIGURATION Desktop & Laptop Computers PDAs Speakers (Multimedia speakers, USB speakers,..) Multi-media Monitors (CRT monitors, LCD monitors,..) Telephony Accessories (Feature phones, Web phones, & cell phones,..) MP Players DVD Players TVs (HDTV, LCD TV, Plasma TV, ) Portable Radio Cassettes 4 PSOP- (PS0)/PDIP (P0) Top View VL AGND SD VL MUSIC-IN 5 00/0/ Rev.. Champion Microelectronic Corporation Page

2 PIN DESCRIPTION Pin No. Symbol Description Voltage supply for internal circuits, VL, VL Output / Inductor connection (IDD, IDD) AGND Analog ground 4 SD Shutdown active HIGH. CMOS input level 5 MUSIC-IN Audio input Power ground for output power switcher Power supply for output power switcher BLOCK DIAGRAM 00K MUSIC-IN GATE DRIVE VL SD 4 00K AGND THERMO- PROTECTION GATE DRIVE 5 VL ORDERING INFORMATION Part Number Temperature Range Package CM5EP -40 to +5 -Pin PDIP (P0) CM5ES -40 to +5 -Pin PSOP (PS0) CM5GEP -40 to +5 -Pin PDIP (P0) CM5GES -40 to +5 -Pin PSOP (PS0) 00/0/ Rev.. Champion Microelectronic Corporation Page

3 ABSOLUTE MAXIMUM RATINGS Absolute Maximum ratings are those values beyond which the device could be permanently damaged. Supply Voltage -0. to 5.5V Junction Temperature (Note ) 50 Input Voltage -0.V to V CC +0.V Storage Temperature -5 T A 50 Power Dissipation (Note ) Internally Limited Lead Temperature ESD Susceptibility (Note ) KV (soldering 0 sec) 0 RECOMMENDED OPERATING CONDITIONS MIN TYP MAX UNIT Operating Free-air Temperature, T A Supply Voltage,, V High-level Input Voltage, V IH SD V Low-level Input Voltage, V IL SD 0. V ELECTRICAL CHARACTERISTICS (Unless otherwise stated, these specifications apply T A =5 C; Vcc=+5V and =+5V) maximum ratings are stress ratings only and functional device operation is not implied. Symbol Parameter Test Conditions CM5/G Min. Typ. Max. Unit REFERENCE SECTION ISD Supply Current, Shutdown Mode VSD=5V 5 μa IDD Supply Current Without load 0 ma f Switching Frequency KHz V OS Output Offset Voltage Between VL 50 mv and VL with ohm Load PSRR Power Supply Rejection Ratio ==.V to 5.5V 55 db THD+N Total Harmonic Distortion plus Noise Po=W, 4 ohm load, f=khz, <0. % Rds (ON) Drain to Source on-state Resistance IDD=0.5A, =5V 00 0 mω D Duty Cycle 5 % Note : For operating at case temperatures above 5, the device must be derated based on a 50 maximum junction temperature and a thermal resistance of JA =0 /W (junction to ambient). Note : Human body model, 00pF discharged through a.5kω resistor. Note : The operating junction temperature maximum is /0/ Rev.. Champion Microelectronic Corporation Page

4 APPLICATION CIRCUIT J5 D9 N400 L 00 C 00uf/.V C 0uf/.V PWR/IN C 00uf/.V C4 00uf/.V C5 uf C uf J VTT C C uf C4 L4 5uH L 5uH D 5 D 5 VL U CM5 VL AGND 4 5 SD MUSIC_IN R R 00k R R5. C uf R 00k C uf R4 4 5 SD MUSIC_IN U CM5 AGND VL VL L5 D 5uH 5 D 5 C9 C5 C uf J VTT C9 C0 L9 5uH uf uf JP on/off sw R5 J4 MUSIC IN R on/off sw JP Typical Application Circuits 00/0/ Rev.. Champion Microelectronic Corporation Page 4

5 PACKAGE DIMENSION -PIN PDIP (P0) PIN ID -PIN PSOP (PS0) 00/0/ Rev.. Champion Microelectronic Corporation Page 5

6 IMPORTANT NOTICE Champion Microelectronic Corporation (CMC) reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. A few applications using integrated circuit products may involve potential risks of death, personal injury, or severe property or environmental damage. CMC integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use of CMC products in such applications is understood to be fully at the risk of the customer. In order to minimize risks associated with the customer s applications, the customer should provide adequate design and operating safeguards. HsinChu Headquarter Sales & Marketing 5F, No., Park Avenue II, Science-Based Industrial Park, HsinChu City, Taiwan F-, No., Sec., Chenggong Rd., Nangang District, Taipei City 5 Taiwan, R.O.C. T E L : T E L : FAX: F A X : /0/ Rev.. Champion Microelectronic Corporation Page