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TDA4950 Folha de dados(PDF) 2 Page - STMicroelectronics |
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TDA4950 Folha de dados(HTML) 2 Page - STMicroelectronics |
2 / 5 page 4 5 6 7 8 Q15 Q16 Q14 Q18 Q17 R2 R4 D1 Q13 R5 OUTPUT Q12 R6 R7 Q21 Q19 Q20 R8 R3 OP2 COMPARATOR AND OUTPUT STAGE Q4 Q13 Q2 Q1 CURRENT LIMITER R5 Q5 OP1 Q6 Q7 Q8 Q9 Q10 Q11 R9 R10 R11 R12 R13 2 1 OP3 D2 D3 Z1 Q22 3 FULL-WAVE RECTIFIER PARABOLA NETWORK CURRENT REFERENCE GND +V S I IN V S - 6 VBE V S - 3 VBE I REF V REF TDA4950 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit VS Supply Voltage 35 V IS Supply Current 500 mA Ptot Power Dissipation at Tamb = 70 °C 800 mW Tstg, Tj Storage and Junction Temperature – 25, +150 °C THERMAL DATA Symbol Parameter Value Unit Rth (j-a) Thermal Resistance Junction-ambient Max. 100 °C/W Rth (j-c) Thermal Resistance Junction-pin (4) Max. 70 °C/W ELECTRICAL CHARACTERISTICS (Tamb = 25 oC, VS = 26 V, Vfr = 0, S1 and S2 in "a" position, refer to test circuit unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit VS Supply Voltage 17 24 30 V IS Supply Current 4.5 7 mA Vref Internal Reference Voltage 7.6 8.0 8.8 V – Iref Internal Reference Current Vref/R3 0.73 mA V7(A) Pin 7 Output Voltage Ifr = 0 µA, see Figure 2 15.3 16.0 16.7 V V7(B) Pin 7 Output Voltage Ifr = 30 µA, see Figure 2 15 V TDA4950 2/5 |
Nº de peça semelhante - TDA4950 |
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Descrição semelhante - TDA4950 |
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