HT82V733 400mW Mono Audio Power Amp Features · Operating voltage: 2.2 V~5.5V · Low power consumption · High signal-to-noise ratio · Wide temperature operating range · Low distortion · Low standby current · Low power on and chip enable/disable pop noise · Power off control · Output power 400mW at 10% THD+N into 8W · Direct drive speaker · Large output voltage swing · 8-pin SOP package Applications · Applied for HT36 series, HT86 series and other Holtek products General Description HT82V733 is an integrated class AB mono speaker driver contained in an 8-pin SOP package. The HT82V733 is capable of delivering 400mW output power to an 8W load with less than 10% (THD+N) from a 5V power supply. The very low standby current in shutdown mode contributes to the reduction of power consumption of battery-powered equipments. Block Diagram Pin Assignment O U T N A u d In O U T P 1 0 R R R A M P 2 A M P 1 V R E F O U T N 1 8 V D D A u d In 2 7 O U T P V R E F 3 6 N C V S S 4 5 C E H T 8 2 V 7 3 3 8 S O P -A R V S S V D D B IA S C E Pin Description Pin No. Pin Name I/O Description 1 OUTN O Negative output 2 Aud In I Audio input 3 VREF O Speaker non-inverting input voltage reference 4 VSS ¾ Negative power supply, ground 5 CE I Chip enable, low active 6 NC ¾ Not connected 7 OUTP O Positive output 8 VDD ¾ Positive power supply Rev. 1.20 1 July 22, 2014 HT82V733 Absolute Maximum Ratings Supply Voltage ...........................VSS-0.3V to VSS+6.0V Storage Temperature ............................-50°C to 125°C Input Voltage..............................VSS-0.3V to VDD+0.3V Operating Temperature...........................-40°C to 85°C Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. Electrical Characteristics Symbol Parameter VSS=0V, Ta=25°C Test Conditions Min. Typ. Max. Unit 2.2 5.0 5.5 V ¾ 1.5 1.7 mA 5V ¾ 2 2.2 mA 5V VIN=0VP-P, CE=VDD; No load ¾ ¾ 0.5 mA 0.7VDD ¾ VDD V 0 ¾ 0.3VDD V VDD Conditions ¾ Supplies VDD Supply Voltage ¾ IDD Quiescent Power Supply Current 3V ISD Shutdown Power Supply Current VIN=0VP-P; No load D.C. Characteristics VIH VIL Input High Voltage for CE ¾ ¾ Input Low Voltage for CE ¾ ¾ 3V PO Output Power 5V (THD+N)/S£1%, VIN=1kHz Sinewave RL=8W ¾ 90 ¾ (THD+N)/S£10%, VIN=1kHz Sinewave RL=8W ¾ 125 ¾ (THD+N)/S£1%, VIN=1kHz Sinewave RL=8W ¾ 385 ¾ (THD+N)/S£10%, VIN=1kHz Sinewave RL=8W ¾ 490 ¾ ¾ 1.5 ¾ ms ¾ 1 ¾ ms ¾ 0.23 ¾ % ¾ 71 ¾ dB mW mW A.C. Characteristics TON 3V Enable Time VIN=1kHz Sinewave; No load 5V (THD+N)/S Total Harmonic Distortion Power Output=200mW, RL=8W 5V Plus Noise-to-signal Ratio VIN=1kHz Sinewave S/N Signal to Noise Ratio Rev. 1.20 5V VIN=1Vrms 1kHz Sinewave 2 RL=8W July 22, 2014 HT82V733 Functional Description OUTP Rising Time (tR) When CE is active low, the HT82V733 needs rising time to output fully on OUTP pin. However, the rising time depends on C1. (*see the application circuits) C E O U T P tR Capacitor tR 0.1mF 1mF 4.7mF 10mF 2.2V 15ms 30ms 90ms 185ms 3V 15ms 30ms 90ms 185ms 4V 15ms 30ms 90ms 185ms Voltage For battery based applications, power consumption is a key issue, therefore the amplifier should be turned off when in the standby state. In order to eliminate any speaker sound bursts while turning the amplifier on, the application circuit, which will incorporate a capacitance value of C1, should be adjusted in accordance with the speaker¢s audio frequency response. A greater value of C1 will improve the noise burst while turning on the amplifier. The recommended operation sequence is: Turn On: ²Aud In² signal standby (1/2 VDD) ® enable amplifier ® wait tR for amplifier ready ® ²Aud In² signal start Turn Off: ²Aud In² signal finish ® disable amplifier ® wait tR for amplifier off ® ²Aud In² signal off A u d In tR tR C E O U T If the application is not powered by batteries and there is no problem with amplifier On/Off issue, a capacitor value of 0.1mF for C1 is recommended. Rev. 1.20 3 July 22, 2014 HT82V733 (THD+N) vs. Output Power RLOAD=8W, VIN=1kHz Sinewave T H D + N v s O u tp u t P o w e r 1 0 0 ) 2 5 0 2 0 5 V 3 V 1 0 5 2 1 % 0 .5 0 .2 0 .1 0 .0 5 0 .0 2 0 .0 1 1 m 5 m 2 m 1 0 m 2 0 m 5 0 m 1 0 0 m 5 0 0 m 2 0 0 m 1 2 5 O u tp u t P o w e r (W ) Application Circuits A u d io In 1 C 3 0 .1 m F R 2 O U T P Rev. 1.20 5 6 7 4 D D 8 C 2 4 7 m F H T 8 2 V 7 3 3 V R E F N C C E V D D C E C 1 1 m F 3 A u d In V O U T N S p e a k e r 4 July 22, 2014 HT82V733 Package Information Note that the package information provided here is for consultation purposes only. As this information may be updated at regular intervals users are reminded to consult the Holtek website for the latest version of the package information. Additional supplementary information with regard to packaging is listed below. Click on the relevant section to be transferred to the relevant website page. · Further Package Information (include Outline Dimensions, Product Tape and Reel Specifications) · Packing Meterials Information · Carton information Rev. 1.20 5 July 22, 2014 HT82V733 8-pin SOP (150mil) Outline Dimensions A 5 8 1 B 4 C C ' G H D E Symbol Dimensions in inch Min. Nom. Max. A ¾ 0.236 BSC ¾ B ¾ 0.154 BSC ¾ C 0.012 ¾ 0.020 C¢ ¾ 0.193 BSC ¾ D ¾ ¾ 0.069 E ¾ 0.050 BSC ¾ F 0.004 ¾ 0.010 G 0.016 ¾ 0.050 H 0.004 ¾ 0.010 a 0° ¾ 8° Symbol Rev. 1.20 a F Dimensions in mm Min. Nom. Max. A ¾ 6.00 BSC ¾ B ¾ 3.90 BSC ¾ C 0.31 ¾ 0.51 C¢ ¾ 4.90 BSC ¾ D ¾ ¾ 1.75 E ¾ 1.27 BSC ¾ F 0.10 ¾ 0.25 G 0.40 ¾ 1.27 H 0.10 ¾ 0.25 a 0° ¾ 8° 6 July 22, 2014 HT82V733 Copyright Ó 2014 by HOLTEK SEMICONDUCTOR INC. The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw. Rev. 1.20 7 July 22, 2014