Test Procedure for the STK404-070NGEVB Evaluation Board [Supply Voltage] +Vcc/-Vcc : Power Supply for audio power amplifiers +PRE (+12V) : Power Supply for +PRE [Operation Guide] 1. Installation of the heat sink Please refer to a thermal design tip for the amplifier. 2. Load Connection: Connect the RL=6Ω (Non-inductive load) 3. Power Supply Connection: Connect the +Vcc/-Vcc/+12V (Iutput off : 0V) 5. Input Connection: Connect the Oscillator (Sine wave / Output resistance 600Ω) The gain of the evaluation board is set in 30dB. 6. Power Supply: At first, supply DC voltage to +12V. Next, supply DC voltage to +Vcc and -Vcc. 7. Input: ON 06/07/2013 1 www.onsemi.com [Required Equipment] Equipment Evaluation Board Power supply +Vcc Power supply -Vcc Power supply Stand-By Control Load Measurement Efficiency STK404-120NGEVB STK404-140NGEVB 80V-5A 100V-6A 80V-5A 100V-6A 15V-1A 6Ω(Non-inductive load ) Audio analyzer (Panasonic VP-7723B) STK404-070NGEVB 60V-3A 60V-3A Characteristics confirmation STK404-070NGEVB +Vcc=+30V/-Vcc=-30V VIN=490mVrms VO=15.5Vrms(PO=40W) CH1 IN CH1 OUT IF NF 6Ω 56kΩ 1.8kΩ GAIN：30dB STK404-120NGEVB +Vcc=+41V/-Vcc=-40V VIN=692mVrms VO=21.9Vrms(PO=80W) CH1 IN CH1 OUT IF NF 6Ω 56kΩ 1.8kΩ GAIN：30dB STK404-140NGEVB +Vcc=+51V/-Vcc=-51V VIN=847mVrms VO=26.8Vrms(PO=120W) CH1 IN CH1 OUT IF NF 6Ω 56kΩ 1.8kΩ GAIN：30dB 06/07/2013 2 www.onsemi.com Characteristics confirmation Constant-voltage supply Signal Output load (RL=6Ω) CH1 OSC OUTPUT (600Ω) CH1 GND Sound quality confirmation, load short-circuit test, noise examination 10000F +Vcc DBA40C Specified Transformer Power Supply STK404-070N-E (Equivalent to MG-200) STK404-120N-E/140N-E (Equivalent to MG-250) + 500Ω + 500Ω -Vcc 10000F Constant-voltage supply Signal Music source (CH1) Speaker(CH1) GND 06/07/2013 3 www.onsemi.com Test Circuit STK404-070N-E STK404-070N-E 1 R1 2 C2 R3 R2 C1 4 C4 + IN 3 C3 5 6 R4 D1 + + 7 + C8 8 9 10 + + R8 C9 R6 C6 +12V +VCC -VCC R7 C7 + C5 R10 OUT L1 R5 C10 RL R11 Test Circuit STK404-120N-E STK404-120N-E 1 R1 IN 2 + C2 C1 3 C3 5 C4 R3 R2 4 + 6 7 8 R4 C8 + 9 10 11 + + 12 R8 R9 C9 R6 + +12V +VCC -VCC C6 R7 C7 + C5 R10 OUT L1 R5 C10 R11 06/07/2013 4 RL www.onsemi.com Test Circuit STK404-140N-E STK404-140N-E 1 2 R1 IN 3 + C2 C1 4 C3 6 C4 R3 R2 5 + 7 8 9 10 11 12 + R4 + C8 + + 13 R8 R6 +12V +VCC -VCC C6 C5 + R7 C7 R10 OUT L1 R5 C10 R11 06/07/2013 R9 C9 5 RL www.onsemi.com Characteristic of Evaluation Board STK404-070N-E THD-Po STK404-070N-E Pd-Po STK404-070N-E 100 60 Total Harmonic Distortion THD(%) 10 Total Device Power Dissipation, Pd(W) Vcc=± 30V RL=6Ω 1ch Drive VG=30dB Rg=600Ω Tc=25°C 1 f=20kHz 0.1 f=1kHz 0.01 Vcc=± 30V f=1kHz RL=6Ω 1ch Drive VG=30dB Rg=600Ω 50 40 Tc=25°C 30 20 10 0 0.001 0.1 1 10 0.1 100 1 100 1000 Output Power Per Channel, Po/ch(W) Output Power Per Channel, Po/ch(W) Po-Vcc STK404-070N-E Po-f STK404-070N-E 120 120 f=1kHz RL=6Ω 1ch Drive VG=30dB Rg=600Ω 100 90 110 THD=10% (f=1kHz) Output Power Per Channel, Po/ch(W) 110 Output Power Per Channel, Po/ch(W) 10 Tc=25°C 80 70 THD=0.4% (f=1kHz) 60 50 40 30 20 10 0 100 THD=10% 90 80 70 THD=0.4% 60 50 Vcc=± 30V RL=6Ω 1ch Drive VG=30dB Rg=600Ω Tc=25°C 40 30 20 10 0 20 22 24 26 28 30 32 34 36 38 40 Supply Voltage, Vcc(+-V) 06/07/2013 10 100 1000 10000 100000 Frequency, f(Hz) 6 www.onsemi.com Characteristic of Evaluation Board STK404-120N-E THD-Po STK404-120N-E Pd-Po STK404-120N-E 100 Vcc=± 41V RL=6Ω 1ch Drive VG=30dB Rg=600Ω Tc=25°C 10 Total Device Power Dissipation, Pd(W) Total Harmonic Distortion THD(%) 100 1 f=20kHz 0.1 f=1kHz 0.01 0.001 0.1 1 10 100 Vcc=± 41V f=1kHz RL=6Ω 1ch Drive VG=30dB Rg=600Ω 90 80 70 Tc=25°C 60 50 40 30 20 10 0 1000 0.1 Output Power Per Channel, Po/ch(W) 1 Po-Vcc STK404-120N-E THD=10% f =1kHz RL=6Ω 1ch Drive VG=30dB Rg=600Ω THD=0.4% 100 0 20 30 40 50 60 70 Supply Voltage, Vcc(+-V) 06/07/2013 1000 300 Tc=25°C 200 100 Po-f STK404-120N-E Output Power Per Channel, Po/ch(W) Output Power Per Channel, Po/ch(W) 300 10 Output Power Per Channel, Po/ch(W) Vcc=±41V RL=6Ω 1ch Drive VG=30dB Rg=600Ω Tc=25°C 200 THD=10% THD=1% 100 0 10 100 1000 10000 100000 Frequency, f(Hz) 7 www.onsemi.com Characteristic of Evaluation Board STK404-140N-E Pd-Po STK404-140N-E THD-Po STK404-140N-E 100 160 Total Harmonic Distortion THD(%) 10 Total Device Power Dissipation, Pd(W) Vcc=± 51V RL=6Ω 1ch Drive VG=30dB Rg=600Ω Tc=25°C 1 f=20kHz 0.1 f=1kHz 0.01 Vcc=± 51V f=1kHz RL=6Ω 1ch Drive VG=30dB Rg=600Ω 140 120 Tc=25°C 100 80 60 40 20 0 0.001 0.1 1 10 100 0.1 1000 Output Power Per Channel, Po/ch(W) 1 Po-Vcc STK404-140N-E f =1kHz RL=6Ω 1ch Drive VG=30dB Rg=600Ω 100 1000 Po-f STK404-140N-E 300 THD=10% Output Power Per Channel, Po/ch(W) Output Power Per Channel, Po/ch(W) 300 10 Output Power Per Channel, Po/ch(W) Tc=25°C 200 THD=0.4% 100 0 THD=10% THD=1% 200 Vcc=± 51V RL=6Ω 1ch Drive VG=30dB Rg=600Ω Tc=25°C 100 0 20 30 40 50 60 70 Supply Voltage, Vcc(+-V) 06/07/2013 10 100 1000 10000 100000 Frequency, f(Hz) 8 www.onsemi.com A Thermal Design Tip For STK404-070N-E Amplifier [Thermal Design Conditions] The thermal resistance (θc-a) of the heat-sink which manages the heat dissipation inside the Hybrid IC will be determined as follow: (Condition 1) The case temperature (Tc) of the Hybrid IC should not exceed 125°C Pd c-a + Ta 125°C ············································································ (1) Where Ta : the ambient temperature for the system (Condition 2) The junction temperature of each power transistor should not exceed 150°C Pd c-a + Pd/N j-c + Ta 150°C ·························································· (2) Where N : the number of transistors (two for 1 channel , ten for channel) θj-c : the thermal resistance of each transistor (see specification) Note that the power consumption of each power transistor is assumed to be equal to the total power dissipation (Pd) divided by the number of transistors (N). From the formula (1) and (2), we will obtain: c-a (125 Ta)/Pd ················································································ (1)’ c-a (150 Ta)/Pd j-c/N ····································································· (2)’ The value which satisfies above formula (1)’ and (2)’ will be the thermal resistance for a desired heat-sink. Note that all of the component except power transistors employed in the Hybrid IC comply with above conditions. [Example of Thermal Design] Generally, the power consumption of actual music signals are being estimated by the continuous signal of 1/8 PO max. (Note that the value of 1/8 PO max may be varied from the country to country.) (Sample of STK404-070N-E ; 40W×1ch) If VCC is ±30V, and RL is 6, then the total power dissipation (Pd) of inside Hybrid IC is as follow; Pd = 19.6W (at 5W output power,1/8 of PO max) There are two (2) transistors in Audio Section of this Hybrid IC, and thermal resistance (θj-c) of each transistor is 3.0°C/W. If the ambient temperature (Ta) is guaranteed for 50°C, then the thermal resistance (θc-a) of a desired heat-sink should be; From (1)’ c-a (125 50)/19.6 3.83 From (2)’ c-a (150 50)/19.6 3.0/2 3.60 Therefore, in order to satisfy both (1)’ and (2)’, the thermal resistance of a desired Heat-sink will be 3.60°C/W. [Note] Above are reference only. The samples are operated with a constant power supply. Please verify the conditions when your system is actually implemented. 06/07/2013 9 www.onsemi.com A Thermal Design Tip For STK404-120N-E Amplifier [Thermal Design Conditions] The thermal resistance (θc-a) of the heat-sink which manages the heat dissipation inside the Hybrid IC will be determined as follow: (Condition 1) The case temperature (Tc) of the Hybrid IC should not exceed 125°C Pd c-a + Ta 125°C ············································································ (1) Where Ta : the ambient temperature for the system (Condition 2) The junction temperature of each power transistor should not exceed 150°C Pd c-a + Pd/N j-c + Ta 150°C ·························································· (2) Where N : the number of transistors (two for 1 channel , ten for channel) θj-c : the thermal resistance of each transistor (see specification) Note that the power consumption of each power transistor is assumed to be equal to the total power dissipation (Pd) divided by the number of transistors (N). From the formula (1) and (2), we will obtain: c-a (125 Ta)/Pd ················································································ (1)’ c-a (150 Ta)/Pd j-c/N ····································································· (2)’ The value which satisfies above formula (1)’ and (2)’ will be the thermal resistance for a desired heat-sink. Note that all of the component except power transistors employed in the Hybrid IC comply with above conditions. [Example of Thermal Design] Generally, the power consumption of actual music signals are being estimated by the continuous signal of 1/8 PO max. (Note that the value of 1/8 PO max may be varied from the country to country.) (Sample of STK404-120N-E ; 80W×1ch) If VCC is ±41V, and RL is 6, then the total power dissipation (Pd) of inside Hybrid IC is as follow; Pd = 37.5W (at 10W output power,1/8 of PO max) There are four (2) transistors in Audio Section of this Hybrid IC, and thermal resistance (θj-c) of each transistor is 1.7°C/W. If the ambient temperature (Ta) is guaranteed for 50°C, then the thermal resistance (θc-a) of a desired heat-sink should be; From (1)’ c-a (125 50)/37.5 2.00 From (2)’ c-a (150 50)/37.5 1.7/2 1.82 Therefore, in order to satisfy both (1)’ and (2)’, the thermal resistance of a desired Heat-sink will be 1.82°C/W. [Note] Above are reference only. The samples are operated with a constant power supply. Please verify the conditions when your system is actually implemented. 06/07/2013 10 www.onsemi.com A Thermal Design Tip For STK404-140N-E Amplifier [Thermal Design Conditions] The thermal resistance (θc-a) of the heat-sink which manages the heat dissipation inside the Hybrid IC will be determined as follow: (Condition 1) The case temperature (Tc) of the Hybrid IC should not exceed 125°C Pd c-a + Ta 125°C ············································································ (1) Where Ta : the ambient temperature for the system (Condition 2) The junction temperature of each power transistor should not exceed 150°C Pd c-a + Pd/N j-c + Ta 150°C ·························································· (2) Where N : the number of transistors (two for 1 channel , ten for channel) θj-c : the thermal resistance of each transistor (see specification) Note that the power consumption of each power transistor is assumed to be equal to the total power dissipation (Pd) divided by the number of transistors (N). From the formula (1) and (2), we will obtain: c-a (125 Ta)/Pd ················································································ (1)’ c-a (150 Ta)/Pd j-c/N ····································································· (2)’ The value which satisfies above formula (1)’ and (2)’ will be the thermal resistance for a desired heat-sink. Note that all of the component except power transistors employed in the Hybrid IC comply with above conditions. [Example of Thermal Design] Generally, the power consumption of actual music signals are being estimated by the continuous signal of 1/8 PO max. (Note that the value of 1/8 PO max may be varied from the country to country.) (Sample of STK404-140N-E ; 120W×1ch) If VCC is ±51V, and RL is 6, then the total power dissipation (Pd) of inside Hybrid IC is as follow; Pd = 57.2W (at 15W output power,1/8 of PO max) There are four (2) transistors in Audio Section of this Hybrid IC, and thermal resistance (θj-c) of each transistor is 1.1°C/W. If the ambient temperature (Ta) is guaranteed for 50°C, then the thermal resistance (θc-a) of a desired heat-sink should be; From (1)’ c-a (125 50)/57.2 1.31 From (2)’ c-a (150 50)/57.2 1.1/2 1.19 Therefore, in order to satisfy both (1)’ and (2)’, the thermal resistance of a desired Heat-sink will be 1.19°C/W. [Note] Above are reference only. The samples are operated with a constant power supply. Please verify the conditions when your system is actually implemented. 06/07/2013 11 www.onsemi.com STK404-000N-Ese Stand-by control & Mute control Application STK404-000N-Esr Thermal shut down Application STK404-070N-E No thermal sensor Thermal sensor STK404-120N-E 1 2 3 4 5 6 7 8 9 10 11 12 4 5 6 7 8 9 10 11 12 13 shutdown signal +12V Thermal sensor STK404-140N-E 1 2 3 shutdown signal +12V 06/07/2013 12 www.onsemi.com Thermal Sensor Characteristic STK404-120N-E Rp – Tp 100k 100k Reference Reference 7 7 5 5 3 3 2 2 10k 10k 7 7 5 5 Resistance, Rp -- Resistance, Rp -- STK404-140N-E Rp – Tp 3 2 1k 3 2 1k Max. 7 7 5 Max. 5 Typ. Typ. 3 3 2 2 Min. 100 --20 Min. 100 0 20 40 60 80 100 120 140 160 Temperature, Tp -- °C 06/07/2013 --20 0 20 40 60 80 100 120 140 160 Temperature, Tp -- °C 13 www.onsemi.com STK404-070N-E Road-Short & DC Voltage Protection Application STK404-120N-E Road-Short & DC Voltage Protection Application 06/07/2013 14 www.onsemi.com STK404-140N-E Road-Short & DC Voltage Protection Application 06/07/2013 15 www.onsemi.com