ILA7056SH INTEGRAL | Alldatasheet
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Technical content
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 CONDITIONS MIN. TYP. MAX. UNIT Vp supply voltage 3 11 18 V Po output power Vp=11 V, THD=10!, RL=16 " 2.5 3 W Gv internal voltage gain 39 40,0 42 dB Ip total quiescent current Vp=11 V; RL=# 57 m A THD total harmonic distortion Po=0,5 W 0,25 1 %
1n . c . 2V P 3 input(+) 4 signal ground 5n . c . 6 output(+) 7 power ground 8 output(-) 9n . 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 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 PARAMETER CONDITIONS MIN. MAX. UNIT Vp supply voltage - 18 V iorm 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 Plot total power dissipation T^se < 60 C - 9 W Tsc short circuiting time see note 1 - 1 hr Note 1. The load can be short-circuited at all input conditions. SYMBOL PARAMETER NOM. UNIT hibk from junction to case 10 K/W Rtll.a from junction to ambient in free air 55 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.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Vp operating supply voltage 3 11 18 V IQRM repetitive peak output current - - 0.6 A IP total quiescent current - 5 7 mA PO output power THD= 10% 2.5 3 - W THD total harmonic distortion Po = 0.5 W - 0.25 1 GV voltage gain 39 40.5 42 dB Vno noise output voltage note 2 - 180 300 uV Vno noise output voltage note 3 - 60 - [JV frequency response - 20 to 20.000 -H z RR ripple rejection note 4 36 50 - dB AV DC-output offset voltage note 5 - - 200 mV IZJ input impedance - 100 - kii 1, input bias current - 100 300 nA 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.