STA7056 ® 3W MONO BRIDGE AMPLIFIER PRODUCT PREVIEW NO EXTERNAL COMPONENTS NO POP AT TURN-ON/OFF LOW POWER CONSUMPTION SHORT CIRCUIT PROOF BI20II TECHNOLOGY DESCRIPTION The STA7056 is a mono Bridge Amplifier assembled in single in line 9 pins package. The STA7056 is specially designed for battery fed portable recorders, radios and TV receivers. SIP9 ORDERING NUMBER: STA7056 BLOCK DIAGRAM (1) VS 220µF 2 0.1µF 6 3 Vi (+) + RL 16Ω - RS 5KΩ SIGNAL GND POWER GND 8 4 (-) 7 D99AU1000B (1) This capacitor can be omitted if the supply electrolytic capacitor is placed closer to pin 2 March 2000 1/5 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. STA7056 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS Supply Voltage 20 V IO Output Peak current (repetitive f ≥ 20Hz) 1 A IO Output Peak current (non repetitive t = 100µs) 1.5 A Ptot Total Power Dissipation (Tcase <70°C) Tj,Tstg Tsc Storage and Function Temperature 10 W -40 to 150 °C 1 hr Short Circuit Time (the load can be short circuited to all input conditions) PIN CONNECTION 9 N.C. 8 OUTPUT(-) 7 POWER GROUND 6 OUTPUT(+) 5 N.C. 4 SIGNAL GROUND 3 INPUT(+) 2 VS 1 N.C. SIP9 THERMAL DATA Symbol Parameter Unit Rth j-case Thermal Resistance Junction-case 8 °C/W Rth j-amb Thermal Resistance Junction-ambient 50 °C/W Power Dissipation Assume: Vs = 11V; RL = 16Ω The minimum sine-wave dissipation is Pd max = The Rth j - amb of the package is 50°C/W. T amb (max) = 150 - 50 x 1.52 = 74°C 2/5 Value VS2 π2 ⋅ RL⁄2 = 1.52W STA7056 ELECTRICAL CHARACTERISTICS (Refer to the test circuit, VS = 12V; RL = 16Ω; RS = 50Ω; f = 1KHz, Tamb = 25°C unless otherwise specified.) Symbol Parameter VS Supply Voltage Iq Total Quiescent Current IO Repetitive Peak Output Current PO Output Power THD Gv |Zin| Ii Total Harmonic Distortion Test Condition Min. Typ. 3 Max. Unit 18 V RL = ∞ 6 8 mA RL = 16Ω 10 20 mA 0.9 A 3.3 W THD = 10%; RL = 8Ω THD = 10%; RL = 16Ω 4.5 W PO = 0.5W 0.25 1 % 40.5 42 dB Voltage Gain 2.8 39 Input Impedance 100 Input Bias Current 100 ∆VO DC Output Offset Voltage RS = 5KΩ SVR Supply Voltage Rejection RS = 0Ω; f = 100Hz to 10 KHz; Vr = 0.2V Vno Noise Output Voltage RS = 5KΩ; f = 20Hz to 20 KHz; 36 KΩ 300 nA 250 mV 50 180 dB 300 µV 3/5 STA7056 mm DIM. MIN. TYP. A inch MAX. MIN. TYP. 7.1 a1 2.7 3 0.280 0.106 0.118 B 23 0.90 B3 24.8 0.976 b1 0.5 b3 0.85 0.020 1.6 0.033 0.063 C 3.3 0.130 c1 0.43 0.017 c2 1.32 D 0.052 21.2 0.835 d1 14.5 0.571 e 2.54 0.100 e3 20.32 L 0.800 3.1 0.122 L1 3 L2 0.118 17.6 L3 0.693 0.25 L4 OUTLINE AND MECHANICAL DATA MAX. 17.4 17.85 0.010 0.685 0,702 M 3.2 0.126 N 1 0.039 P 0.15 SIP9 0.006 C D L1 L3 c2 N P 1 9 L a1 L2 L4 A d1 M b1 b3 e 1 c e3 B B3 4/5 SIP9 STA7056 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics © 2000 STMicroelectronics – Printed in Italy – All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com 5/5