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| ICs for Audio Common Use AN5277 Dual Channel SEPP Power Amplifier s Overview The AN5277 is a monolithic integrated circuit designed for 10.0 W (26 V, 8 )output audio power amplifier. It is a dual channel SEPP IC suitable for stereo operation in TV application. 29.750.30 28.00.3 20.00.3 7.70.3 Unit : mm 12 (10.0) 3.6 (1.27) (1.3) * Few external components : * No Boucherot cells(output C, R) * No Bootstrap Capacitors * No Negative Feedback Capacitors * Built-in muting circuit * Built-in standby circuit * Built-in various protection circuits (Load-short, thermal, over-voltage and current) * High ripple rejection(55 dB) * Compatible with AN5275, AN5276 * Operating voltage range 10 32 V(26 V typ.) R1.8 0.6 +0.10 0.25 -0.05 2.54 1 0.6 -0.05 (1.27) (10.0) s Features +0.15 (12.5) 1.450.15 1.20.1 (1.2) 19.10.3 21.90.3 HSIP012-P-0000A s Applications * TV s Block Diagram Att. Att. con Protection circuit Temperature Over voltage Over current Load short Ripple filter 10 Standby 11 12 1 2 3 GND 4 (Input) 5 6 7 8 GND 9 (Output) ch.2 Out Mute ch.1 Out N.C. ch.1 In. RF ch.2 In N.C. VCC 1.800.15 3.50.3 29.60.3 1 AN5277 s Pin Descriptions Pin No. 1 2 3 4 5 6 N.C. ch.1 Input Ripple Filter Input GND ch.2 Input N.C. Description Pin No. 7 8 9 10 11 12 ICs for Audio Common Use Description ch.2 Output Mute Output GND VCC Standby ch.1 Output s Absolute Maximum Ratings Parameter Supply voltage Supply current Power dissipation *2 *1 Symbol VCC ICC PD Topr Tstg Ratings 35.0 4.0 37.5 -25 to +75 -55 to +150 Unit V A W C C Operating ambient temperature Storage temperature *1 Note) *1 : Ta = 25 C except operating ambient temperature and storage temperature. *2 : At Ta = 70 C. s Recommended Operating Range Parameter Supply voltage Symbol VCC Range 10.0 to 32.0 Unit V s Electrical Caracteristics at VCC = 26 V, RL = 8 , f = 1 kHz, Ta = 25 C Parameter Quiescent current Output end noise voltage *1 Voltage gain Total harmonic distortion *1 Maximum output power Ripple rejection ratio *1 Channel balance Muting ratio Muting control voltage Standby control voltage 'on' Symbol ICQ VNO GV THD PO RR CB MR VMUTE VSTDON VIN = 0 mV No input,RG = 10 k VIN = 57 mV VIN = 57 mV VCC = 26 V,THD = 10 % VR = 1 Vrms,fR = 120 Hz, RG = 10 k, VIN = 57 mV VIN = 57 mV VIN = 57 mV, MR70 dB No input, ICC0.1 mA No input, ICC20 mA VIN = 57 mV,RG = 10 k Conditions Min 32 8.0 45 -1.0 70 3.0 8.5 50 Typ 40 0.22 34 0.2 10.0 55 0 80 60 Max 80 0..4 36 0.4 1.0 5.0 Unit mA mV dB % W dB dB dB V V V dB Standby control voltage 'off' VSTDOFF Channel crosstalk CT Note) *1 : For this measurement, use the 20 Hz to 20 kHz(12 dB/OCT) filter. 2 ICs for Audio Common Use s Terminal Equivalent Circuit Pin No. 1 2 Pin2 5 200 400 AN5277 Equivalent Circuit Description Not connected ch.1 Input : This is the amplifier input pins. DC Voltage 0V 30 k 4 3 10 Ripple Filter : This is the pin to connect the positive terminal of a ripple filter capacitor. 30 k 3 20 k 15 k 15.7 k VCC - 1.5 VBE 4 4 5 6 7 Refer to Pin2 10 Input GND : Input ground pin. ch.2 Input : This is the amplifier input pins. Not connected ch.2 Output : ch.2 output pin 0V VCC/2 Driver Cct Pre-amp. 7 600 VCC/2 30 k 9 3 AN5277 s Pin Equivalent Circuit (continued) Pin No. 8 Equivalent Circuit Mute : ICs for Audio Common Use Description DC Voltage 10 Mute input pin. Mute 'On' = 5 V Mute 'Off' = 0 V 3 k 10 k 8 200 3 k 4 9 10 11 10 Output GND : ch.1 & ch.2 output ground. VCC : This is the power supply pin. Standby : This is the standby control pin. 0V typ. : 26 V 11 5 k 5 k 3 k 4 12 10 ch.1 Output : ch.1 output pin VCC/2 Driver Cct Pre-amp. 12 600 30 k 9 4 ICs for Audio Common Use s Application Circuit Example AN5277 VCC 3 R.F. VCC 100 F VCC STB Off STB On 1 F 10 k SP 8 11 STB 1 000 F VIN1 2 12 10 1 000 F VIN2 1 F 10 k 5V 7 5 1 000 F SP 8 Mute On Mute Off 8.2 k Mute 8 10 F 9 Output GND 1 4 N.C. STB 'On' Mute 'Off' Mute 'On' 0V 0V 5V s 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 toGND short. 4. Load short protection will only prevent the IC from damaging if operating VCC<30 V 5. The temperature protection circuit will operate at Tj around 150 C. However, if temperature decrease, the protection circuit will automatically be deactivated and resume normal operation. Input GND STB 'Off' VCC N.C. 6 5 AN5277 s Technical Information * PD Ta Curves of HSIP012-P-0000A PD Ta ICs for Audio Common Use 80 70 Power dissipation PD (W) 62.5 W 60 50 40 30 20.8 W 20 15.6 W 10 3.0 W 0 0 25 50 75 100 125 150 (4) (2) (3) (1) Ambient temperature Ta (C) 1. TC = Ta,62.5 W(j-c = 2 C/W) 2. 20.83 W(f = 4.0 C/W) With a 100 cm2 X 3 mm Al heat sink(black colour coated)or a 200 cm2 X 2 mm Al heat sink(not lacquered) 3. 15.63 W(f = 6.0 C/W) With a 100 cm2 X 2 mm Al heat sink(not lacquered) 4. 3.0 W at Ta = 25 C(j-a = 42 C/W) Without heat sink 6 |
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