AN5276

ICs for Audio Common Use AN5276 5 W × 2-ch (19V, 8 Ω) power amplifier with variable audio output and volume control Unit : mm ■ Overview 12 7.7±0.3 (10.0) R1.8 21.9±0.3 29.6±0.3 3.5±0.3 1.45±0.15 1 (1.2) 19.1±0.3 1.80±0.15 1.2±0.1 (12.5) +0.10 0.25 –0.05 2.54 0.6 • Few external components : • No Boucherot cells(output C, R) • No Bootstrap Capacitors • No Negative Feeback Capacitors • Built-in muting circuit • Built-in stand-by circuit • Built-in various protection circuits (Load-short, thermal, over-voltage and current) • High ripple rejection(55 dB) • Compatible with AN5275, AN5277 • Operating voltage range 10 V to 24 V(19 V typ.) +0.15 ■ Features 0.6 –0.05 (1.27) 20.0±0.3 (1.27) φ3.6 (10.0) 29.75±0.30 28.0±0.3 (1.3) The AN5276 is a monolithic integrated circuit designed for 5.0 W (19 V, 8 Ω) output audio power amplifier. It is a dual channel SEPP IC suitable for stereo operation in TV application. HSIP012-P-0000A ■ Applications • TV ■ Block Diagram Att. Att. Con Protection circuit • Temperature • Over-voltage • Over-current • Load short 12 Out Ch.1 11 Standby 10 VCC GND 9 (Output) 8 Mute 7 Out Ch.2 6 N.C. 5 Ch.2 In GND 4 (Input) 3 RF 2 Ch.1 In N.C. 1 Ripple filter 1 AN5276 ICs for Audio Common Use ■ Pin Descriptions Pin No. Descriptions Pin No. Descriptions 1 N.C. 7 Ch.2 output 2 Ch.1 input 8 Mute 3 Ripple filter 9 Output GND 4 Input GND 10 VCC 5 Ch.2 input 11 Standby 6 N.C 12 Ch.1 output ■ Absolute Maximum Ratings Parameter Symbol Rating Unit VCC 26.0 V ICC 4.0 A PD 37.5 W Topr −25 to +75 °C Tstg −55 to +150 °C Supply voltage Supply current Power dissipation *2 Operating ambient temperature Storage temperature *1 *1 Note) *1 : Except these items, all other measurements are taken at Ta = 25 °C. *2 : Ta = 75 °C. ■ Recommended Operating Range Parameter Supply voltage 2 Symbol Range Unit VCC 10.0 to 24.0 V ICs for Audio Common Use AN5276 ■ Electrical Characteristics at VCC = 19 V, f = 1 kHz, RL = 8 Ω, Ta = 25 °C Parameter Symbol Conditions Min Typ Max Unit ICQ VIN = 0 mV  35 70 mA VNO No input, Rg = 10 kΩ  0.22 0.4 mV GV VIN = 57 mV 32 34 36 dB Total harmonic distortion THD VIN = 57 mV  0.2 0.4 % Maximum Output Power PO VCC = 22 V, THD = 10 % 5.6 7.0  W Maximum Output power PO VCC = 19 V, THD = 10 % 4.0 5.0  W RR Vr = 1 Vrms fr = 120 Hz, Rg = 10 kΩ 45 55  dB Channel balance CB VIN = 57 mV −1.0 0 1.0 dB Muting Ratio MR VIN = 57 mV 70 80  dB VIN = 57 mV, MR ≥ 70 dB 3.0   V Quiescent current Output end noise voltage *1 Voltage gain Ripple rejection ratio *1 Muting control voltage VMUTE Standby control voltage 'on' VSTD-ON No input, ICC ≤ 0.1 mA   5.0 V Standby control voltage 'off' VSTD-OFF No input, ICC ≥ 17 mA 8.5   V 50 60  dB Channel crosstalk CT VIN = 57 mV, Rg = 10 kΩ Note) *1 : For this measurement, use the 20 Hz to 20 kHz (12 dB/OCT) filter. 3 AN5276 ICs for Audio Common Use ■ Terminal Equivalent Circuits Pin No. Equivalent circuit 1  Description 2 200 Ω 2 400 Ω DC voltage (V) Not connected  Ch.1 input This is the amplifier input pin. 0 30 kΩ 4 3 Ripple filter This is the pin to connect the positive terminal of a ripple filter capactior. 10 VCC-1.5VBE 30 kΩ 3 15.7 kΩ 15 kΩ 20 kΩ 4  4 5 5 200 Ω 400 Ω Input GND Input ground pin 0 Ch.2 input This is the amplifier input pin.  Not connected  30 kΩ 4 6 4  ICs for Audio Common Use AN5276 ■ Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit Description 7 DC voltage (V) Ch.2 output Ch.2 output pin VCC/2 Mute Mute input pin. Mute 'on' = 5 V Mute 'off' = 0 V  10 Pre amp. Driver Cct 7 600 Ω VCC/2 9 30 kΩ 8 10 3 kΩ 3 kΩ 10 kΩ 8 200 Ω 4 9  Output GND Ch.1 & Ch.2 output ground. 0 10  VCC This is the power supply pin. 19 V(typ.) 5 AN5276 ICs for Audio Common Use ■ Terminal Equivalent Circuits (continued) Pin No. Equivalent circuit Description 11 Standby This is the standby control pin. 10 DC voltage (V)  11 5 kΩ 5 kΩ 3 kΩ 4 12 Ch.1 output Ch.1 output pin 10 Driver Cct Pre amp. 12 600 Ω 9 30 kΩ 6 VCC/2 ICs for Audio Common Use AN5276 ■ Application Circuit Example VCC 100 µF STB off STB R.F. VCC 1 8 5V 1000 µF 11 STB on 1 µF VIN1 2 12 1000 µF SP 8Ω 10 kΩ 1 µF VIN2 5 7 SP 8Ω 10 kΩ 5V Mute on 1000 µF 8.2 kΩ Mute 8 9 Mute off Output GND STB off VCC STB on 0V Mute off 0V Mute on 5V 6 N.C. 4 Input GND N.C. 1 10 µF ■ Usage Notes 1) External heatsink is needed when used. External heatsink should be fixed to the chassis. 2) Fin of the IC can be connected to GND. 3) Please prevent output to VCC short and output to GND short. 4) The temperature protection circuit will operate at Tj around 150 °C. However, if temperature decreass, the protection circuit would automatically be deactivated and resume normal operation. 7 AN5276 ICs for Audio Common Use ■ Technical Information • PD  Ta curves of HSI P012-P-0000A PD  T a 80 (1) Tc = Ta, 62.5 °C/W(θj-c = 2 °C/W) (2) 20.83 W(θf = 4.0 °C/W) With a 100cm2 × 3mm Al heat sink (black colour coated) or a 200cm2 × 2mm Al heat sink (not lacquered) (3) 15.63 W(θf = 6.0 °C/W) With a 100cm2 × 2mm Al heat sink (not lacquered) (4) 3.0 W at Ta = 25 °C(θj-a = 42 °C/W) Without heat sink 70 62.5 W Power dissipation PD (W) 60 (1) 50 40 30 20 20.8 W (2) 15.6 W (3) 10 3.0 W (4) 0 0 25 50 75 100 125 Ambient Temperature Ta (°C) 8 150 Request for your special attention and precautions in using the technical information and semiconductors described in this material (1) An export permit needs to be obtained from the competent authorities of the Japanese Government if any of the products or technologies described in this material and controlled under the "Foreign Exchange and Foreign Trade Law" is to be exported or taken out of Japan. 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