IS31AP2118 15W STEREO CLASS-D AUDIO POWER AMPLIFIER Advanced Information June 2012 GENERAL DESCRIPTION FEATURES The IS31AP2118 is a 15W, dual channel, Class-D stereo driver in our audio amplifier family. It is suitable for powering the audio components of various equipments, including typical consumer electronics, high performance audio speakers. IS31AP2118 has several key features which distinguishes itself from other alternatives on the market. On-board AGC, EMI suppression, and 90% typical operating efficiency are key features of this part. EMI suppression circuit, which eliminates LC, filters at the outputs. These features simplify customer design, reduces system cost and PCB area. The IS31AP2118 integrates automatic gain control function with adjustable power limit. When output power goes over the power limit, IS31AP2118 can reduce gain automatically to pull down the output power, so that keep the output power around power limit while the input level is high. The IS31AP2118 has short circuit and thermal protection features integrated on board. Dual 12W, at 4Ω @ 1% THD, VCC=12V Dual 15W, at 8Ω @ 10% THD, VCC=16V Mono 20W, at 8Ω @ 10% THD, VCC =18V 90% typical operating efficiency 8V< VIN <26V Filter-less EMI suppression Integrated AGC with adjustable power limit Four selectable, gain preset levels: 20db, 26db, 32db, 36db High SNR, low THD+N Thermal and short-circuit protection Over/under-voltage protection De-pop circuitry TSSOP-28 package APPLICATIONS Consumer Audio Equipment HDTV, Home Theater Equipment Automotive Audio Amplifier Performance Stereo Speakers TYPICAL APPLICATION CIRCUIT VCC 8V~26V 7 14 10 F PVCC AVCC MODE 27,28 470 F 0.1 F 1 F 13 5 Micro Controller 6 1 1k 2 AVDD MUTE GAIN0 AGCLMT GAIN1 SDB BSR+ FAULTB 100k OUTR+ IS31AP2118 PGND OUTR- CINR+ 1 F 12 Right Input 11 BSRINR+ INR- CINR1 F BSL+ OUTL+ PGND CINL+ 1 F 3 Left Input VCC 8V~26V 15,16 4 OUTLINL+ INL- CINL1 F BSLAGND 9 10 17 18 19 20 21 0.22 F 1nF 33 H 33 H 0.22 F 1nF 0.22 F 1nF 26 25 24 23 22 33 H 33 H 0.22 F 1nF 8 Figure 1 Typical Application Circuit (Stereo Mode Application) Integrated Silicon Solution, Inc. – www.issi.com Rev. 00A, 06/10/2012 1 IS31AP2118 VCC 8V~26V 7 14 PVCC AVCC MODE VCC 8V~26V 15,16 27,28 470 F 1 F 10 F 0.1 F 13 5 Micro Controller 6 1 1k 2 AVDD MUTE GAIN0 AGCLMT GAIN1 SDB FAULTB BSR+ IS31AP2118 100k OUTR+ OUTR- CINR+ 1 F 12 Audio Input 11 BSRINR+ INR- CINR1 F PGND BSL+ OUTL+ OUTL- CINL+ 1 F 3 4 BSLINL+ INL- AGND 9 10 17 18 0.22 F 33 H 20 21 0.22 F 1nF 19, 24 26 1nF 25 0.22 F 23 33 H 22 0.22 F 8 CINL1 F Figure 1 Typical Application Circuit (Mono Mode Application) Integrated Silicon Solution, Inc. – www.issi.com Rev. 00A, 06/10/2012 2 IS31AP2118 PIN CONFIGURATION Package TSSOP-28 Pin Configuration (Top View) SDB 1 28 PVCC FAULTB 2 27 PVCC INL+ 3 26 BSL+ INL- 4 25 OUTL+ GAIN0 5 24 PGND GAIN1 6 23 OUTL- AVCC 7 22 BSL- AGND 8 21 BSR- AVDD 9 20 OUTR- AGCLMT 10 19 PGND INR- 11 18 OUTR+ INR+ 12 17 BSR+ MUTE 13 16 PVCC MODE 14 15 PVCC ORDERING INFORMATION INDUSTRIAL RANGE: -40°C TO +85°C Order Part No. Package QTY/Tube IS31AP2118-ZLS2 TSSOP-28, Lead-free 30 Copyright © 2012 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that: a.) the risk of injury or damage has been minimized; b.) the user assume all such risks; and c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances Integrated Silicon Solution, Inc. – www.issi.com Rev. 00A, 06/10/2012 3 IS31AP2118 PIN DESCRIPTION No. Pin Description 1 SDB Shutdown control. Active low. 2 FAULTB Open drain output used to display short circuit or dc detect fault status. Voltage compliant to AVCC. Short circuit faults can be set to auto-recovery by connecting FAULT pin to SD pin. Otherwise, both short circuit faults and dc detect faults must be reset by cycling PVCC. 3 INL+ Positive audio input for left channel. 4 INL- Negative audio input for left channel. 5 GAIN0 Gain select least significant bit. 6 GAIN1 Gain select most significant bit. 7 AVCC Analog power supply. 8 AGND Analog signal ground. 9 AVDD 5V regulated output. Connect 2.2μF to AGND. 10 AGCLMT Power limit level adjusting pin. Connect a resistor divider from AVDD to AGND to set power limit. Connect directly to AVDD for no power limit. 11 INR- Negative audio input for right channel. 12 INR+ Positive audio input for right channel. 13 MUTE Mute mode control. 14 MODE Parallel BTL mode switch. (low = BTL mode, high = PBTL mode) 15, 16 PVCC Power supply for right channel H-bridge. 17 BSPR Bootstrap I/O for right channel, positive high-side FET. 18 OUTR+ Class-D H-bridge positive output for right channel. 19, 24 PGND Power ground for the H-bridges. 20 OUTR- Class-D H-bridge negative output for right channel. 21 BSR- Bootstrap I/O for right channel, negative high-side FET. 22 BSL- Bootstrap I/O for left channel, negative high-side FET. 23 OUTL- Class-D H-bridge negative output for left channel. 25 OUTL+ Class-D H-bridge positive output for left channel. 26 BSL+ Bootstrap I/O for left channel, positive high-side FET. 27, 28 PVCC Power supply for left channel H-bridge. Thermal Pad Connect to GND. Integrated Silicon Solution, Inc. – www.issi.com Rev. 00A, 06/10/2012 4 IS31AP2118 ABSOLUTE MAXIMUM RATINGS Supply voltage (AVCC, PVCC), VCC Voltage at SDB, GAIN0, GAIN1, MODE, MUTE pins Voltage at INR-, INR+, INL-, INL+, AGCLMT pins Voltage at OUTL+, OUTR+, OUTL-, OUTRVoltage at AVDD Maximum junction temperature, TJMAX Storage temperature range, TSTG Operating temperature range, TA -0.3V ~ +30.0V -0.3V ~ VCC+0.3V -0.3 to VAVDD+0.3V -0.3 to VCC+0.3V -0.3V ~ +6.0V 150°C -65°C ~ +150°C −40°C ~ +85°C Note: Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS VCC=12V, TA=25℃, RL=8Ω (unless otherwise noted). Symbol Parameter Condition Min. Typ. Unit 26 V VCC Supply voltage IDD Quiescent current VSDB = 2V, No load (without LC) 20 mA ISD Shutdown current VSDB = 0.8V 200 µA IO = 500mA 240 mΩ 1.5 mV RDS(ON) VOS G Drain-source resistance 8 Max. on-state Class-D output offset voltage VI = 0, Gain = 36dB (measured differentially) Gain Gain1= 0.8V, Gain0= 0.8V 20 Gain1= 0.8V, Gain0= 2V 26 Gain1= 2V, Gain0= 0.8V 32 Gain1= 2V, Gain0= 2V 36 dB tON Turn-on time VSDB = 2V 14 ms tOFF Turn-off time VSDB = 0.8V 2 µs Internal regulated output IO = 5mA 5 V AVDD RL Speaker resistance BTL: PVCC > 15 V 4.8 BTL: PVCC ≤ 15 V 3.2 PBTL 3.2 Ω Logic Electrical Characteristics (SDB, GAIN0, GAIN1, MUTE, MODE) VIH High level threshold voltage 2 AVCC V VIL Low level threshold voltage 0 0.8 V IIH High level threshold current VI = 2V, VCC = 18V 50 µA IIL Low level threshold current VI = 0.8V, VCC = 18V 5 µA Integrated Silicon Solution, Inc. – www.issi.com Rev. 00A, 06/10/2012 5 IS31AP2118 AC ELECTRICAL CHARACTERISTICS VCC=12V, TA=25℃, RL=8Ω (unless otherwise noted). Symbol PSRR PO THD+N Parameter Power supply rejection Condition ripple 200mVP-P ripple at 1kHz, Gain = 20dB, Inputs ac-coupled to AGND Min. Typ. Max. Unit -70 dB Continuous output power THD+N = 10%, f = 1kHz, VCC = 13V 10 W Total harmonic distortion VCC = 12V, f = 1kHz, PO = 5W (half+ noise power) 0.1 % 65 µV VN Output integrated noise 20Hz to 22kHz, A-weighted filter, Gain = 20dB X Crosstalk VO = 1Vrms, Gain = 20dB, f = 1kHz -100 dB Signal-to-noise ratio Maximum output at THD+N < 1%, f = 1kHz, Gain = 20dB, A-weighted 102 dB Thermal trip point 160 Ԩ Thermal hysteresis 60 Ԩ SNR Integrated Silicon Solution, Inc. – www.issi.com Rev. 00A, 06/10/2012 6 IS31AP2118 FUNCTIONAL BLOCK DIAGRAM Integrated Silicon Solution, Inc. – www.issi.com Rev. 00A, 06/10/2012 7 IS31AP2118 FUNCTION DESCRIPTION The IS31AP2118 is a 15W, dual channel, Class-D stereo driver which is suitable for powering the audio components of various equipments, including typical consumer electronics, high performance audio speakers. The MUTE pin is an input for controlling the output state of the IS31AP2118. A logic high on this terminal will shut down the outputs. A logic low on this pin enables the outputs. The gain of the IS31AP2118 is set by two input terminals, GAIN0 and GAIN1. Different input logic for GAIN0 and GAIN1 cause input gain in 4 levels (20dB, 26dB, 32dB, 36dB). The IS31AP2118 also provides thermal and over current protection functions to prevent permanent damage to the device. Integrated Silicon Solution, Inc. – www.issi.com Rev. 00A, 06/10/2012 8 IS31AP2118 PACKAGE INFORMATION TSSOP-28 Note: All dimensions in millimeters unless otherwise stated. Integrated Silicon Solution, Inc. – www.issi.com Rev. 00A, 06/10/2012 9