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| ICs for Audio Common Use AN7190NK, AN7190NZ Dual 20 W BTL power amplifier s Overview The AN7190NK and the AN7190NZ are audio power ICs developed for the sound output of car audio (dual 20 W). It is incorporating various protective circuits to protect the IC from destruction by GND-open, short circuit to GND and power supply surge which are the important subject of power IC protection, so the IC will largely contribute to a high reliability design of equipment. Also, it is incorporating a perfect muting circuit which is free from shock noise, so that a shock noise design under the set transient condition can be made easily using together with its standby function. AN7190NK 11.30.3 7.70.3 Unit : mm 16 +0.15 0.6 -0.10 (1.1) 29.750.3 28.00.3 20.00.3 (10.0) (10.0) (0.889) 3.6 R1.8 (0.6) 1.788 (0.889) 1.2+0.1 (12.5) R0.7 (1.2) (14.1) (17.63) (18.7) (21.5) 1.450.15 1 3.50.2 0.25 +0.10 -0.05 s Features * BTL 20 W x 2-channel (4 ), GV = 40 dB * Built-in various protection circuits (thermal protection, short circuit to VCC and short circuit to GND, VCC-open short circuit to VCC , GND-open short circuit to GND, overvoltage and supply surge, and ASO, etc.) Especially, the supply surge breakdown voltage is 100 V or more. GND open breakdown voltage is 16 V or more. * Built-in standby function Free from shock noise at STB on/off. * Built-in muting function Free from shock noise at mute-on/off. Adapting attenuator method so that abnormal sound due to waveform deformation is not generated . Attack time, recovery time are 50 ms or less. * Reduction in external components It eliminates the need for NF and BS electrolytic capacitors. Muting function is not required, and power supply choke coil is unnecessary. * Provided with beep sound input pin * 2 load guaranteed HZIP016-P-0665A AN7190NZ 18.000.30 13.500.30 4.000.20 1.500.10 1.800.15 Unit : mm 3.250.10 (1.95) 0.25+0.15 -0.05 3.600.10 (2.54) 1 1.27 0.50+0.20 -0.10 15 (0.61) (1.80) (2.54) 19.000.30 19.300.30 HZIP015-P-0745A s Applications * Car audio 2.400.50 R0.55 13.250.30 15.650.50 18.950.50 10.00.30 29.60.3 1 AN7190NK, AN7190NZ s Block Diagram VCC ICs for Audio Common Use Ch.1 GND Ch.1 out (-) 3 4 Att. 12 Ref. 14 13 Protection cct. Att. 1 Ch.2 GND Ch.2 out (-) Ch.1 out (+) 2 Att. Att.con. Att. 15 Ch.2 out (+) 10 11 6 5 7 8 Ch.1 in GND (sub) Ch.2 in s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 Description Power supply Ch.1 output (+) Grounding (output ch.1) Ch.1 output (-) Standby Ch.1 input Muting Grounding (sub) Pin No. 9 10 11 12 13 14 15 Description Grounding (input) Beep sound input Ch.2 input Ripple filter Ch.2 output (-) Grounding (output ch.2) Ch.2 output (+) s Absolute Maximum Ratings Parameter Supply voltage *2 *3 Symbol VCC Vsurge ICC Rating 25 80 9.0 AN7190NK AN7190NZ 32.5 59 - 30 to + 85 - 55 to + 150 GND (input) Beep in Standby Mute 9 Unit V V A W C C Peak supply voltage Supply current Power dissipation *4 PD *1 Operating ambient temperature Storage temperature Note) *1 : *2 : *3 : *4 : *1 Topr Tstg Ta = 25C except operating ambient temperature and storage temperature. Without signal Time = 0.2 s Ta = 85C 2 ICs for Audio Common Use s Recommended Operating Range Parameter Supply voltage Symbol VCC Range 8.0 to 18.0 AN7190NK, AN7190NZ Unit V s Electrical Characteristics at VCC = 13.2 V, freq. = 1 kHz, Ta = 25C Parameter Quiescent current Standby current Output noise voltage Voltage gain 1 Total harmonic distortion 1 Maximum output power 1 Ripple rejection ratio *1 Channel balance Cross-talk *1 *1 Symbol ICQ ISTB VNO GV1 THD1 PO1 RR CB CT VOFF MT ZI GV2 THD2 PO2 VS THD3 Conditions VIN = 0 mV, RL = 4 VIN = 0 mV, RL = 4 Rg = 4.7 k, RL = 4 VIN = 20 mV, RL = 4 VIN = 20 mV, RL = 4 THD = 10%, RL = 4 RL = 4 , Rg = 4.7 k, Vr = 1 V[rms], fr = 1 kHz VIN = 20 mV, RL = 4 VIN = 20 mV, RL = 4 , Rg = 4.7 k Rg = 4.7 k, RL = 4 VIN = 20 mV, RL = 4 VIN = 0.3 VDC VIN = 20 mV, RL = 2 VIN = 20 mV, RL = 2 THD = 10%, RL = 2 RL = 4 , Rg = 4.7 k, VMUTE = 5 V, VSTB = on/off, 50 Hz HPF on VIN = 5 mV, fIN = 20 kHz Rg = 4.7 k, RL = Min 38 16 60 55 -350 70 22 38 16 -100 Typ 120 1 0.22 40 0.07 18 72 0 65 0 82 28 40 0.1 24 0 0.10 Max 250 10 0.5 42 0.4 1 350 35 42 0.5 Unit mA A mV[rms] dB % W dB dB dB mV dB k dB % W Output offset voltage Muting effect *1 Input impedance Voltage gain 2 Total harmonic distortion 2 Maximum output power 2 Shock noise *2 100 mV[p-0] 0.5 % Total harmonics distortion 3 Note) *1 : Measurement using a bandwidth 15 Hz to 30 kHz (12 dB/OCT) filter. *2 : For VSTB = on/off, change over the standby terminal by the voltages of 0 V and 5 V at the time shown below. Standby terminal voltage 5V 0V 120 ms 120 ms 3 AN7190NK, AN7190NZ s Usage Notes ICs for Audio Common Use 1. Always attach an outside heat sink when using the chip. Note that, the outside heat sink must be fastened onto a chassis for use. 2. Connect the cooling fin to GND potential. 3. Avoid short circuit to VCC and short circuit to GND, and load short-circuit. 4. The temperature protection circuit will be actuated at Tj = approx. 150C, but it is automatically reset when the chip temperature drops below the above set level. 5. The overvoltage protection circuit starts its operation at VCC = approx. 20 V. 6. Take into consideration the heat radiation design particularly when VCC is set high or when the load is 2 . 7. When the beep sound function is not used, open the beep sound input pin (pin 10) or connect it to pin 9 with around 0.01 F capacitor. 8. Connect only pin 9 (ground, signal source) to the signal GND of the amplifier in the previous stage. The characteristics such as distortion, etc. will improve. s Technical Information * PD Ta curves of packages * HZIP016-P-0665A (AN7190NK) PD T a 65 62.5 60 55 50 45 41.7 40 35 31.3 30 25 20 17.9 15 10.4 10 5 3.0 0 0 25 50 75 100 125 150 10C/W heat sink 20.5 20 11.3 1.8 0 0 5C/W heat sink 10C/W heat sink Without heat sink 25 50 75 100 125 150 2C/W heat sink 3C/W heat sink 5C/W heat sink 1C/W heat sink Infinite heat sink Rth (j-c) = 2C/W Rth (j-a) = 42C/W * HZIP015-P-0745A (AN7190NZ) PD T a 120 113.6 Infinite heat sink Rth (j-c) = 1.1C/W Rth (j-a) = 68.3C/W 100 Power dissipation PD (W) Power dissipation PD (W) 80 60 59.5 1C/W heat sink 40.3 40 30.5 2C/W heat sink 3C/W heat sink Without heat sink Ambient temperature Ta (C) Ambient temperature Ta (C) 4 ICs for Audio Common Use s Application Circuit Example AN7190NK, AN7190NZ 10 11 12 13 14 2 200 F 33 F CRF 0.22 F 0.22 F 4.7 k 4.7 k 4.7 k 10 F 2.2 2.2 2.2 VCC VIN (ch.1) Beep in 5V 5V 0V STB 0V Mute Note) Standby state when STB pin is open-circuit. Mute off when mute terminal is open-circuit. Replace the CRF with 10 F capacitor when shock noise (VS) is measured. VIN (ch.2) 2.2 1 F 0.22 F 5 0.22F 2/4 2/4 15 1 2 3 4 5 6 7 8 9 |
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