ILA7056SH 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 ILA7056SH 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 CONDITIONS Po output power Gv internal voltage gain Ip total quiescent current Vp=11 V; RL=# THD total harmonic distortion Po=0,5 W Vp=11 V, THD=10!, RL=16 " MIN. 3 TYP. 11 MAX. 18 UNIT V 2.5 3 39 40,0 42 dB 5 7 mA 0,25 1 % W 1 INTEGRAL ILA7056SH 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 ILA7056SH 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 ILA7056SH fulfills both of these requirements. It needs no peripheral components, because it makes use of the BridgeTied-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 PARAMETER supply voltage iorm CONDITIONS MIN. - MAX. 18 UNIT V Peak output current repetitive - 1 A iosm Peak output current non-repetitive - 1.5 A Tstg storage temperature range -55 150 °C Tj junction temperature - 150 °C - 9 1 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 INTEGRAL ILA7056SH CHARACTERISTICS SYMBOL PARAMETER Vp operating supply voltage repetitive peak output current IQRM CONDITIONS MIN. 3 - TYP. 11 - MAX. 18 0.6 UNIT V A 2.5 - 5 3 0.25 7 1 mA W 39 40.5 42 dB 300 - uV [JV Hz 200 - dB mV kii 300 nA THD total quiescent current output power total harmonic distortion GV voltage gain Vno Vno noise output voltage noise output voltage frequency response note 2 note 3 - RR AV IZJ ripple rejection DC-output offset voltage input impedance note 4 note 5 36 - 180 60 20 to 20.000 50 100 1, input bias current - 100 IP PO THD= 10% Po = 0.5 W 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. 3 INTEGRAL