AN7196K

AN7196K PANASONIC

Document overview

• Manufacturer or author: Provided By digicamel.com
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Technical content

Dual 15 W BTL power IC for car audio n Overview The AN7196K is an audio power IC developed for the sound output of car audio (dual 15 W). Especially, this circuit has solved the problem of heat radiation design inherent to a single chip IC with 4-channel audio ouputs and realized a corresponding space saving at the same time. In addition, it is incorporating various protection cir- cuits to protect the IC from destruction by GND-open short-circuit to GND and power supply surge which are the most important subjects of power IC protection, and the IC will largely contribute to a high reliability design of equipment. It is also incorporating the industry's first perfect muting circuit, which is free from shock noise, so that a shock noise design under the set transient condition can be made easily when the muting circuit is used together with its standby function. The AN7196K is pin compatible with the AN7191NK (dual 20 W), so that the identical pattern design is allowed for high-class types as well as popular types. n Features

• Built-in various protection circuits (realizing high breakdown voltage against destruction ) Power supply surge breakdown voltage of 100 V or more Ground open breakdown voltage of 16 V or more
• Built-in standby function (free from shock noise at standby on/off)
• Built-in muting function (the industry's first) 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 of 50 ms or less
• Space saving design is possible with a small size package A heat radiation design that has been a problem particularly in a 4-ch. single chip IC can be done by the conventional method.
• Reduction in external components (parts reduction to half compared with the AN7176K) It eliminates the need for NF and BS electrolytic capacitors, Muting function is unnecessary Power supply choke coil is unnecessary
• Provided with beep sound input pin
• Pin compatible with the AN7191NK (dual 20 W) n Applications
• Car audio HZIP016-P-0665A 11.3±0.3 7.7±0.3 (10.0) 29.6±0.3 (10.0) 20.0±0.3 28.0±0.3 29.75±0.3 (0.6) 0.6(0.889) (1.1) (0.889) 161 +0.15 -0.10 f3.6 R1.8 3.5±0.2 1.788 1.45±0.151.80±0.15 (2.54) 1.2+0.1 0.25+0.10 -0.05 (12.5) (14.1) (18.7) (1.2) (21.5) (17.63) R0.7 Unit : mm

AN7196K ICs for Audio Common Use n Block Diagram n Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage *2 V CC 25 V Peak supply voltage *3 V surge 80 V Supply current I CC 9.0 A Power dissipation *4 PD 59 W Operating ambient temperature *1 T opr -30 to +85 °C Storage temperature *1 Tstg -55 to +150 °C Note) *1 : All items are at Ta = 25°C, except for the operating ambient temperature and storage temperature. *2 : Without signal *3 : Time = 0.2 s *4: T a = 85°C Ref. Protection Cct. Att.Con. Att. Att. Att. Att.

1 V CC8GND(sub)

GND(input) Beep In Ch.1 In Ch.2 In Ripple filter Standby Mute N.C. 16 Ch.1 GND Ch.2 GND Ch.1 Out (-) Ch.1 Out (+) Ch.2 Out (-) Ch.2 Out (+) n Pin Descriptions Pin No. Description

1 Power supply

2 Ch.1 output ( +) 3 Grounding (output ch.1) 4 Ch.1 output ( -)

5 Standby

6 Ch.1 input

7 Muting

8 Grounding (sub)

Pin No. Description

9 Grounding (input)

10 Beep sound input

11 Ch.2 input

12 Ripple filter

13 Ch.2 output ( -) 14 Grounding (output ch.2) 15 Ch.2 output ( +) 16 N.C.

ICs for Audio Common Use AN7196K 5 V 0 V 500 ms 500 ms Parameter Symbol Conditions Min Typ Max Unit Quiescent current I CQ V IN = 0 mV, RL = 4 W¾ 120 250 mA Standby current I STB V IN = 0 mV, RL = 4 W¾ 11 0 mA Output noise voltage *1 V NO R g = 4.7 kW , RL = 4 W¾ 0.22 0.5 mV[rms] Voltage gain 1 G V1 V IN = 40 mV, RL = 4 W 32 34 36 dB Total harmonic distortion 1 THD 1 PO = 0.5 W, RL = 4 W¾ 0.07 0.4 % Maximum output power 1 P O1 THD = 10% , RL = 4 W 12 14 ¾ W Ripple rejection ratio *1 RR R L = 4 W , Rg = 4.7 kW ,6 0 7 0 ¾ dB V r = 1 V[rms], fr = 1 kHz Channel balance CB V IN = 40 mV, RL = 4 W¾ 01 d B Cross-talk *1 CT V IN = 40 mV, RL = 4 W ,5 5 6 5 ¾ dB R g = 4.7 kW Output offset voltage V Off R g = 4.7 kW , RL = 4 W- 250 0 250 mV Muting effect *1 MT V IN = 40 mV, RL = 4 W 70 82 ¾ dB Input impedance Z i V IN = – 0.3 VDC 22 28 35 k W Voltage gain 2 G V2 V IN = 40 mV, RL = 2 W 32 34 36 dB Total harmonic distortion 2 THD 2 PO = 0.5 W, RL = 2 W¾ 0.1 0.5 % Maximum output power 2 P O2 THD = 10% , RL = 2 W 12 20 ¾ W Shock noise *2 V S R L = 4 W , Rg = 4.7 kW- 100 0 100 mV[p-0] V STB = on/off, 50 Hz HPF-on Total harmonic distortion 3 THD 3 V IN = 10 mV, fIN = 20 kHz ¾ 0.10 0.5 % R g = 4.7 kW , RL = ¥ n Electrical Characteristics at VCC = 13.2 V, f = 1 kHz, Ta = 25°C 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 n Recommended Operating Range Parameter Symbol Range Unit Supply voltage V CC 8.0 to 18.0 V

AN7196K ICs for Audio Common Use n Usage Notes 1. Always attach an outside heat sink to use the chip. In addition, 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. 150°C, 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 W . 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 mF 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 be improved. n Technical Information

• PD ¾ Ta curves of HZIP016-P-0665A PD ¾ Ta 62.5 10.4 17.9 41.7 31.3 3.0 0 25 50 75 100 125 150 Infinity heat sink 1°C/W heat sink 2°C/W heat sink 3°C/W heat sink 5°C/W heat sink 10°C/W heat sink Without heat sink R th (j-c) = 2°C/W R th (j-a) = 42°C/W Ambient temperature Ta (°C) Power dissipation PD (W)

ICs for Audio Common Use AN7196K Beep In GND(sub) GND(input) N.C. Ch.1 In Ch.2 In Ripple filter Standby Mute Ch.1 GND Ch.2 GND Ch.1 Out (-) Ch.1 Out (+) Ch.2 Out (-) Ch.2 Out (+) V CC n Application Circuit Example