Ic Auto Door Actuator 64lqfp
The L99DZ120 is a door zone systems IC providing electronic control modules with enhanced power management power supply functionality, including various standby modes, as well as LIN physical communication layers.
The two low-drop voltage regulators of the devices supply the system microcontroller and external peripheral loads such as sensors and provide enhanced system standby functionality with programmable local and remote wake-up capability. In addition 8 high-side drivers to supply LEDs, 2 high-side drivers to supply bulbs increase the system integration level.
Up to 3 DC motors and 4 external MOS transistors in H-bridge configuration can be driven. All outputs are SC protected and implement an open-load diagnosis.
The ST standard SPI interface 4.0 allows control and diagnosis of the device and enables generic software development.
**Key Features**
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- AEC-Q100 qualified
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- 1 half bridge for 7.5 A load RON = 100 mΩ
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- 1 half bridge for 7.5 A load RON = 150 mΩ
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- 2 half bridges for 3 A load RON = 300 mΩ
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- 1 configurable high-side driver for up to 1.5 A RON = 500 mΩ or 0.35 A RON = 1600 mΩ load
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- 1 configurable high-side driver for 0.8 A RON = 800 mΩ or 0.35 A RON = 1600 mΩ load
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- 3 configurable high-side drivers for 0.15 A/0.35 A RON =2 Ω
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- 1 configurable high-side driver for 0.25 A/0.5 A RON = 2 Ω
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- 4 configurable high-side drivers for 0.15 A/0.25 A RON = 5 Ω
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- Internal 10bit PWM timer for each stand-alone high-side driver
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- Buffered supply for voltage regulators and 2 high-side drivers OUT15 & OUT_HS / both P-channel to supply e.g. external contacts
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- Programmable soft-start function to drive loads with higher inrush currents as current limitation value for OUT1-6, OUT7, OUT8 and OUT_HS with thermal expiration feature
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- All the embedded outputs come with protection and supervision features:
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- Current Monitor high-side only
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- Open-load
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- Overcurrent
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- Thermal warning
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- Thermal shutdown
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- Fully protected driver for external MOSFETs in H-bridge configuration
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- Two 5 V voltage regulators for microcontroller and peripheral supply
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- Programmable reset generator for power-on and undervoltage
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- Configurable window watchdog
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- LIN 2.2a compliant SAEJ2602 compatible transceiver
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- Separated Isolated fail-safe block with 2 LS RON = 1 Ω to pull down the gates of the external HS MOSFETs
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- Thermal clusters
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- A/D conversion of supply voltages and internal temperature sensors
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- Embedded and programmable VS duty cycle adjustment for LED driver outputs