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| TECHNICAL DATA 3 W Mono BTL Audio Output Amplifier FEATURES * No external components * No switch-on/off clicks * Good overall stability * Low power consumption * Short circuit proof * ESD protected on all pins. GENERAL DESCRIPTION The KKA7056SH is a mono output amplifier contained in a 9 pin SIL medium power package (SOT110). The device is designed for battery-fed portable mono recorders, radios and television. QUICK REFERENCE DATA SYMBOL PARAMETER supply voltage Vp Po Gv Ip THD output power internal voltage gain total quiescent current total harmonic distortion Vp=11 V; RL= Po=0,5 W CONDITIONS MIN. 3 2.5 39 TYP. 11 3 40,0 5 0,25 42 7 1 MAX. 18 UNIT V W dB mA % Vp=11 V, THD=10 , RL=16 1 KKA7056 PIN 1 2 3 4 5 6 7 8 9 DESCRIPTION n.c. VP input(+) signal ground n.c. output(+) power ground output(-) n.c. FUNCTIONAL DESCRIPTION The KKA7056SH is a mono output amplifier, designed for battery-fed portable radios and mains-fed equipment such as television. For space reasons there is a trend to decrease the number of external components. For portable applications there is also a trend to decrease the number of battery cells, but still a reasonable output power is required. The KKA7056SH fulfills both of these requirements. It needs no peripheral components, because it makes use of the Bridge-Tied-Load (BTL) principle. Consequently it has, at the same supply voltage, a higher output power compared to a conventional Single Ended output stage. It delivers an output power of 1 W into a loudspeaker load of 8 W with 6 V supply or 3 W into 16 W loudspeaker at 11 V without need of an external heatsink. The gain is internally fixed at 40 dB. Special attention is given to switch-on/off click suppression, and it has a good overall stability. The load can be short circuited at all input conditions. SYMBOL Vp iorm iosm Tstg Tj PARAMETER supply voltage Peak output current repetitive Peak output current non-repetitive storage temperature range junction temperature CONDITIONS MIN. -55 - MAX. 18 1 1.5 150 150 9 1 UNIT V A A C C W hr Plot total power dissipation T^se < 60 ***C Tsc short circuiting time see note 1 Note 1. The load can be short-circuited at all input conditions. SYMBOL hibk Rtll.a PARAMETER from junction to case from junction to ambient in free air NOM. 10 55 UNIT K/W K/W POWER DISSIPATION Assume: VP = 11 V; RL = 16 W. The maximum sine-wave dissipation is 1.52 W. The Rth j-a of the package is 55 K/W. Tamb max = 150 - 55 1.52 = 66.4 C. 2 KKA7056 CHARACTERISTICS SYMBOL PARAMETER Vp operating supply voltage IQRM repetitive peak output current IP PO CONDITIONS MIN. 3 2.5 39 TYP. 11 5 3 0.25 40.5 180 60 20 to 20.000 50 100 100 MAX. 18 0.6 7 1 42 300 200 300 UNIT V A mA W THD GV total quiescent current output power total harmonic distortion voltage gain noise output voltage noise output voltage frequency response ripple rejection DC-output offset voltage input impedance input bias current THD= 10% Po = 0.5 W dB uV [JV Hz dB mV kii nA Vno Vno note 2 note 3 36 - RR AV IZJ 1, note 4 note 5 Notes to the characteristics 1. With a load connected to the outputs the quiescent current will increase, the maximum value of this increase being equal to the DC output offset voltage divided by RL . 2. The noise output voltage (RMS value) is measured with RS = 5 kW unweighted (20 Hz to 20 kHz). 3. The noise output voltage (RMS value) at f = 500 kHz is measured with RS = 0 W and bandwidth = 5 kHz. With a practical load (RL = 16 W, LL = 200 mH) the noise output current is only 50 nA. 4. The ripple rejection is measured with RS = 0 W and f = 100 Hz to 10 kHz. The ripple voltage (200 mV) is applied to the positive supply rail. 5. RS = 5 kW. * 9-Pin Plastic Power Single-in-Line (SIL-9MPF, SOT 110-1) 21.8-0.21 15 0.09 1.65 0.03 3.3+0.075 2.6+0.06 8.7-0.15 5.8 0.06 18.5 max 4.3 0.06 Key 3 min 1.2 0.125 1 max 1.2 0.125 0.7 max 9 pins 0.67-0.14 R 0.125 M 0.45-0.1 6.35 0.15 3 |
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