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ST890 Datasheet(PDF) 1 Page - STMicroelectronics |
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ST890 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 9 page 1/9 July 2005 I 2.7V TO 5.5V INPUT RANGE I PROGRAMMABLE CURRENT LIMIT UP TO 1.2A I LOW QUIESCENT CURRENT I THERMAL SHUTDOWN I FAULT INDICATOR OUTPUT I 90m Ω (TYP.) ON RESISTANCE I SO-8 PACKAGE DESCRIPTION The ST890 is a low voltage, P-Channel MOSFET power switch intended for high side load switching applications. This switch operates with inputs from 2.7V to 5.5V, making it ideal for both 3V and 5V systems. Internal current limiting circuitry protects the input supply against overload. Thermal overload protection limits power dissipation and junction temperatures. The ST890’s maximum current limits is 1.2A. The current limit through the switch is programed with a resistor from SET to ground. The ST890 is available in SO-8 package. Main applications are: PCMCIA slots, Access bus slots, Portable equipment. Table 1: Order Codes Type Temperature Range Package Comments ST890CD 0 to 70 °C SO-8 (Tube) 50parts per tube / 40tube per box ST890CDR 0 to 70 °C SO-8 (Tape & Reel) 2500 parts per reel ST890BD -40 to 85 °C SO-8 (Tube) 50parts per tube / 40tube per box ST890BDR -40 to 85 °C SO-8 (Tape & Reel) 2500 parts per reel ST890 1.2A CURRENT LIMITED HIGH SIDE WITH THERMAL SHUTDOWN Figure 1: Schematic Diagram SO-8 Rev. 4 |
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