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ST890CDR Fiches technique(PDF) 1 Page - STMicroelectronics |
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ST890CDR Fiches technique(HTML) 1 Page - STMicroelectronics |
1 / 20 page March 2009 Rev 8 1/20 20 ST890 1.2 A current limited high side power switch with thermal shutdown Features ■ 2.7 V to 5.5 V input range ■ Programmable current limit up to 1.2 A ■ Low quiescent current ■ Thermal shutdown ■ Active low FAULT indicator output ■ 90 m Ω (typ.) ON resistance ■ SO-8 and DFN8L (3 x 3 mm) packages Applications ■ PCMCIA slots ■ Access bus slots ■ Portable equipment Description The ST890 is a low voltage, P-channel MOSFET power switch intended for high side load switching applications. The switch operates with inputs from 2.7 V to 5.5 V, making it ideal for both 3 V and 5 V systems. The internal current limiting circuitry protects the input supply against overload. The thermal overload protection limits power dissipation and junction temperatures. The maximum current limit is 1.2 A. The current limit through the switch is programmed with a resistor from SET to ground. The devices are available in SO-8 and DFN8L (3 x 3 mm) packages. DFN8L (3x3mm) SO-8 Table 1. Device summary Order code Package Packaging ST890BDR SO-8 2500 parts per reel ST890CDR SO-8 2500 parts per reel ST890DTR DFN8L (3 x 3 mm) 3000 parts per reel www.st.com |
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