APS13568 Datasheet | Allegro MicroSystems

FEATURES AND BENEFITS - Micropower (25 μA, typical) when LED is off - Linear LED drive up to 150 m A - Omnipolar Hall-effect switch - Low drift over temperature - Solid-state reliability - Insensitive to physical stress - External LED-enable pin for direct on/off control - Hall-effect switch output - Supports secondary switches and/or LED drivers - Provides switch state for other functions - Selectable output polarity - Automotive-grade ruggedness and fault-tolerance - “K” temperature range qualified per AEC-Q100 - Reverse-battery and load-dump protection - Short-circuit protection - Thermal protection - Internal protection circuits enable 40 V load dump pliance without external protection ponents APPLICATIONS - Automotive glove boxes and storage - Automotive vanity mirrors - Task lighting - Consumer electronics PACKAGE: 8-Pin SOICN with Exposed Thermal Pad (Suffix LJ) Not to scale DESCRIPTION The APS13568 is an integrated circuit that bines an ultrasensitive, omnipolar, micropower Hall-effect switch with a linear programmable current regulator providing up to 150 m A to drive high brightness LEDs. The omnipolar Halleffect switch provides contactless control of the regulated LED current, which is set by a single reference resistor. This highly integrated solution offers high reliability and ease of design pared to a discrete solution. The Hall-effect switch operates with either a north or a south magnetic pole. The switch output polarity can be set with an external pulldown on the POL input pin. This allows the user to select whether the APS13568 switch output goes low when a magnet is present or when the magnetic field is removed. Chopper stabilization provides low switch point drift over temperature. The LED is turned on when the EN input goes low. This activelow input can be connected directly to the Hall switch output, SO, to turn the LED on when the switch output goes low. This flexible solution allows the user to connect additional slave switches, LED...