SPI Power Controller
SPOC - BTS5566G
Overview
Basic Features
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8 bit serial peripheral interface (daisy chain capable SPI) for control and diagnostics
CMOS compatible parallel input pins for each channel provide straightforward PWM operation
Selectable AND- / OR-combination for parallel inputs (PWM control)
Very low stand-by current
Optimized electromagnetic compatibility (EMC) for bulbs
Stable behavior at under voltage
Device ground independent from load ground
Green Product (RoHS-Compliant)
AEC Qualified
Protective Functions
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Reverse battery protection with external components
Short circuit protection
Over load protection
Multi step current limitation
Thermal shutdown with latch
Over voltage protection
Loss of ground protection
Electrostatic discharge protection (ESD)
Diagnostic Functions
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Multiplexed proportional load current sense signals (IS)
Enable function for current sense signal configurable via SPI
High accuracy of current sense signal at wide load current range
Feedback on over temperature and over load via SPI
Multiplexed switch bypass monitor provides short circuit to Vbb detection
Application Specific Functions
Fail-safe activation via LHI pin and configuration via input pins
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Applications
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High-side power switch for 12 V grounded loads in automotive application
Especially designed for standard exterior lighting like tail light, brake light, reverse light, parking light, license
plate lighting and turn signal indicators
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Replaces electromechanical relays, fuses and discrete circuits
Data Sheet
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Rev. 1.3, 2007-10-30