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TDA3676 Datasheet(PDF) 4 Page - NXP Semiconductors |
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TDA3676 Datasheet(HTML) 4 Page - NXP Semiconductors |
4 / 16 page 2000 Feb 01 4 Philips Semiconductors Preliminary specification Low dropout voltage/quiescent current 10 V voltage regulator with enable TDA3676 FUNCTIONAL DESCRIPTION The TDA3676 is a fixed 10 V regulator which can deliver output currents up to 100 mA. The regulator is available in an SO8 package with fused centre pins connected to the lead frame. The regulator is intended for portable, mains, telephone and automotive applications. To increase the lifetime of batteries, a specially built-in clamp circuit keeps the quiescent current of this regulator very low, also in dropout and full load conditions. The regulator remains operating down to very low supply voltages and below this voltage it switches off. A temperature protection circuit is included, which switches off the regulator output at a junction temperature above 150 °C. A new output circuit guarantees the stability of the regulator for a capacitor output circuit with an ESR up to 20 Ω. If only a 100 nF capacitor is used, the regulator is fully stable when IREG > 200 mA. This is very attractive as the ESR of an electrolytic capacitor increases strongly at low temperatures (no expensive tantalum capacitor is required). LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). THERMAL CHARACTERISTICS QUALITY SPECIFICATION In accordance with “SNW-FQ-611E”. SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VP supply voltage TDA3676T − 33 V TDA3676AT − 45 V VP(rp) reverse polarity supply voltage non-operating −−25 V Ptot total power dissipation temperature of PCB ground plane is 25 °C − 4.1 W Tstg storage temperature non-operating −55 +150 °C Tamb ambient temperature operating TDA3676T −40 +85 °C TDA3676AT −40 +125 °C Tj junction temperature operating −40 +150 °C SYMBOL PARAMETER CONDITIONS VALUE UNIT Rth(j-a) thermal resistance from junction to ambient in free air; soldered 125 K/W Rth(j-c) thermal resistance from junction to case to centre pins; soldered 30 K/W |
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