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33287

Part Number	33287
Manufacturer	Freescale Semiconductor
Description	Contact Monitoring and Dual Low-Side Protected Driver
Published	Jul 2, 2007
Detailed Description	Freescale Semiconductor Technical Data Document Number: MC33287 Rev. 5.0, 2/2007 Contact Monitoring and Dual Low-Side ...
Datasheet	33287 PDF File

Overview

Freescale Semiconductor Technical Data Document Number: MC33287 Rev.
5.
0, 2/2007 Contact Monitoring and Dual Low-Side Protected Driver The 33287 interfaces between switch contacts and a microcontroller.
Eight switch-to-battery (or switch-to-ground) sense monitor switch status.
Additionally, two internal low-side switches are available to control inductive or capacitive loads.
The 33287 has eight sense inputs (rated at 40 V) with thresholds ratiometric to VBAT.
One sense input has a dedicated output for direct interfacing to the MCU and the remaining seven inputs are multiplexed interfaced to the MCU.
The two low-side switch outputs are current limited to 535 mA and internally clamped to 50 V.
Outputs also have independent overtemperature shutdown and diagnostic reporting.
Features • • • • Eight High-Voltage Sense Inputs Direct Interfacing to Microcontroller Two Current Limited Low-Side Drivers Drivers Internally Overvoltage Clamped and Thermally Protected • 55 µA Standby Current • Pb...

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