特性和优势

• Generic SBC functions:
  • Fully integrated buck-boost converter
  • 5 V/3.3 V voltage regulator delivering up to 500 mA
  • Separate voltage regulator with optional protection against shorts to battery and loss of module ground
  • CAN transceiver and up to two LIN transceivers
  • Two-channel battery monitoring with integrated A/D converter
  • Watchdog with Window and Timeout modes and on-chip oscillator
  • Serial Peripheral Interface (SPI) for communicating with the microcontroller
  • ECU power management system
  • Protected general-purpose high-voltage I/O pins configurable as high-side drivers (HS), low-side drivers (LS) or wake-up inputs
  • Four internal PWM/pulse timers in derivatives containing high-voltage I/O pins
• Fully integrated buck-boost converter
• 5 V/3.3 V voltage regulator delivering up to 500 mA
• Separate voltage regulator with optional protection against shorts to battery and loss of module ground
• CAN transceiver and up to two LIN transceivers
• Two-channel battery monitoring with integrated A/D converter
• Watchdog with Window and Timeout modes and on-chip oscillator
• Serial Peripheral Interface (SPI) for communicating with the microcontroller
• ECU power management system
• Protected general-purpose high-voltage I/O pins configurable as high-side drivers (HS), low-side drivers (LS) or wake-up inputs
• Four internal PWM/pulse timers in derivatives containing high-voltage I/O pins
• Designed for automotive applications:
  • Excellent ElectroMagnetic Compatibility (EMC) performance
  • ±6 kV ElectroStatic Discharge (ESD) protection according to the Human Body Model (HBM) on the CAN/LIN bus pins
  • ±6 kV ElectroStatic Discharge protection according to IEC 61000-4-2 on the CAN/LIN bus pins, the sensor supply output (VEXT) and the HVIO pins
  • ±40 V short-circuit proof CAN/LIN bus pins
  • Battery and CAN/LIN bus pins are protected against transients in accordance with ISO 7637-3
  • Very low-current Standby and Sleep modes with full wake-up capability
• Excellent ElectroMagnetic Compatibility (EMC) performance
• ±6 kV ElectroStatic Discharge (ESD) protection according to the Human Body Model (HBM) on the CAN/LIN bus pins
• ±6 kV ElectroStatic Discharge protection according to IEC 61000-4-2 on the CAN/LIN bus pins, the sensor supply output (VEXT) and the HVIO pins
• ±40 V short-circuit proof CAN/LIN bus pins
• Battery and CAN/LIN bus pins are protected against transients in accordance with ISO 7637-3
• Very low-current Standby and Sleep modes with full wake-up capability
• Supports remote flash programming via the CAN-bus
• Compact 10 mm × 10 mm HTQFP48 package with low thermal resistance
• Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant)
• Buck and boost functions with a single external coil:
  • Automatic Buck or Boost mode selection depending on input voltage and output load conditions
  • Boost function allows the UJA1131 and UJA1132 to operate at very low supply voltages (e.g. 2 V; lowest achievable supply voltage depends on output load conditions)
  • Boost function of the UJA1135 and UJA1136 can be used to supply the volatile memory of a microcontroller down to battery voltages a low as 2 V
  • Soft-start function
• Automatic Buck or Boost mode selection depending on input voltage and output load conditions
• Boost function allows the UJA1131 and UJA1132 to operate at very low supply voltages (e.g. 2 V; lowest achievable supply voltage depends on output load conditions)
• Boost function of the UJA1135 and UJA1136 can be used to supply the volatile memory of a microcontroller down to battery voltages a low as 2 V
• Soft-start function
• The SMPS functions as a pre-regulator for V1 and, optionally, V2:
  • Results in excellent load response at V1 and V2
  • Results in negligible ripple at V1 and V2 outputs
  • Pre-regulator output voltage selectable via the SPI
  • The SMPS can be switched to Pass-through mode to ensure the lowest possible current consumption with immediate full output current capability
• Results in excellent load response at V1 and V2
• Results in negligible ripple at V1 and V2 outputs
• Pre-regulator output voltage selectable via the SPI
• The SMPS can be switched to Pass-through mode to ensure the lowest possible current consumption with immediate full output current capability
• The SMPS can be used to supply external loads directly:
  • e.g. as an energy-efficient supply for an LED chain
• e.g. as an energy-efficient supply for an LED chain
• Main voltage regulator V1:
  • 5 V or 3.3 V nominal output voltage (depending on the selected device)
  • 500 mA output current capability
  • capable of 500 mA transient load current jump in Standby mode
  • Current limiting above 500 mA
  • On-resistance of less than 2 Ω
  • ±2 % accuracy
  • Undervoltage reset; selectable threshold on the 5 V version: 60 %, 70 %, 80 % or 90 % of nominal value (default detection and release at 90 %)
  • Excellent transient response with a small ceramic output capacitor
  • Short-circuit protection
  • Integrated clamp protects the microcontroller by maintaining the output voltage below 6 V, even when reverse currents of up to 50 mA are injected
  • Turned off in Sleep mode
• 5 V or 3.3 V nominal output voltage (depending on the selected device)
• 500 mA output current capability
• capable of 500 mA transient load current jump in Standby mode
• Current limiting above 500 mA
• On-resistance of less than 2 Ω
• ±2 % accuracy
• Undervoltage reset; selectable threshold on the 5 V version: 60 %, 70 %, 80 % or 90 % of nominal value (default detection and release at 90 %)
• Excellent transient response with a small ceramic output capacitor
• Short-circuit protection
• Integrated clamp protects the microcontroller by maintaining the output voltage below 6 V, even when reverse currents of up to 50 mA are injected
• Turned off in Sleep mode
• Auxiliary voltage regulator V2 with configurable output stage:
  • 5 V nominal output voltage
  • ±2 % accuracy (±1.5 % up to 5 mA output current)
  • Excellent transient response with a small ceramic output capacitor
  • Short-circuit protection
  • Current limiting above 100 mA
  • Configurable as supply for on-board loads
  • Configurable as supply for off-board loads (‘sensor supply’); protected against shorts to GND and battery; loss-of-ground proof; high ESD robustness
• 5 V nominal output voltage
• ±2 % accuracy (±1.5 % up to 5 mA output current)
• Excellent transient response with a small ceramic output capacitor
• Short-circuit protection
• Current limiting above 100 mA
• Configurable as supply for on-board loads
• Configurable as supply for off-board loads (‘sensor supply’); protected against shorts to GND and battery; loss-of-ground proof; high ESD robustness
• ISO 11898-2:201x (upcoming merged ISO 11898-2/5/6) compliant 1 Mbit/s high-speed CAN transceiver supporting CAN FD active communication up to 2 Mbit/s in the CAN FD data field
• Autonomous bus biasing according to ISO 11898-6:2013
• CAN-bus connections are truly floating when power to pin BAT is off
• UJA113xFD: selective wake-up function (ISO11989-6:2013 compliant CAN partial networking)
  • No ‘false’ wake-ups due to CAN FD traffic
• No ‘false’ wake-ups due to CAN FD traffic
• Separate supply pin for flexibility (e.g. can be supplied from V1 or V2)
• One or two channels depending on the selected device
• LIN 2.x compliant
• Compliant with SAE J2602
• Downward compatible with LIN 1.3
• Integrated LIN slave termination
• Improved EMC emission performance with optimized curve shaping
• 4 or 8 general-purpose input/output pins individually configurable as high- or low-side output drivers
  • On/off control via the SPI or by mapping to one of four internal PWM timers
  • Optional direct output on/off control via another HVIO configured as an input (HVIO1 to HVIO4 controlled by HVIO5 to HVIO8 in variants with 8 HVIO pins)
  • PWM timing options include 8-bit dimming up to 250 Hz as well as periodic pulses with variable length and variable repetition rate; e.g. for cyclic contact monitoring
  • On-resistance less than 24 Ω
  • Two or more HVIOs can be combined to form a single output with increased driver capability
  • Combined into one or two banks of four HVIOs with individual supply pins for each bank; the bankscan be supplied independently from the battery (≈12 V), the SMPS (≈6 V) or V1/V2 (5 V)
  • Reverse-current protection of the output in Off mode (loss-of-ground and loss-of-battery proof)
  • Open-load diagnostics and short-circuit protection and diagnostics
  • Can be configured individually to shut down in response to a battery supply undervoltage and/or overvoltage
• On/off control via the SPI or by mapping to one of four internal PWM timers
• Optional direct output on/off control via another HVIO configured as an input (HVIO1 to HVIO4 controlled by HVIO5 to HVIO8 in variants with 8 HVIO pins)
• PWM timing options include 8-bit dimming up to 250 Hz as well as periodic pulses with variable length and variable repetition rate; e.g. for cyclic contact monitoring
• On-resistance less than 24 Ω
• Two or more HVIOs can be combined to form a single output with increased driver capability
• Combined into one or two banks of four HVIOs with individual supply pins for each bank; the bankscan be supplied independently from the battery (≈12 V), the SMPS (≈6 V) or V1/V2 (5 V)
• Reverse-current protection of the output in Off mode (loss-of-ground and loss-of-battery proof)
• Open-load diagnostics and short-circuit protection and diagnostics
• Can be configured individually to shut down in response to a battery supply undervoltage and/or overvoltage
• Individually configurable as inputs with wake-up capability
  • Selectable wake-up edge
  • Selectable wake-up threshold: ratiometric to HVIO supply pin or absolute level
  • Wake-up threshold tolerates ground offsets of up to 2.5 V
  • Wake-up source reporting via SPI
  • Continuous or periodic input level sampling; timing can be synchronized with another HVIO pin configured as an output driver for cyclic contact monitoring
• Selectable wake-up edge
• Selectable wake-up threshold: ratiometric to HVIO supply pin or absolute level
• Wake-up threshold tolerates ground offsets of up to 2.5 V
• Wake-up source reporting via SPI
• Continuous or periodic input level sampling; timing can be synchronized with another HVIO pin configured as an output driver for cyclic contact monitoring
• Three HVIOs can be configured individually as limp-home outputs
  • HVIO2 as static high-side driver limp-home signal
  • HVIO3 as 100 Hz, 10 % duty cycle limp-home signal
  • HVIO4 as 1.25 Hz, 50 % duty cycle limp-home signal
• HVIO2 as static high-side driver limp-home signal
• HVIO3 as 100 Hz, 10 % duty cycle limp-home signal
• HVIO4 as 1.25 Hz, 50 % duty cycle limp-home signal
• 10-bit resolution, accurate to ±300 mV at 20 V full scale
• Two channels:
  • Measures the voltage level on pin BAT or pin BATSENSE
  • Measures the battery voltage on either side of a polarity protection diode connected to pin BATSENSE via a series resistor
• Measures the voltage level on pin BAT or pin BATSENSE
• Measures the battery voltage on either side of a polarity protection diode connected to pin BATSENSE via a series resistor
• Continuous measurement on both channels
• Optional software interrupt and/or shutdown of functions when measured supply voltage is outside a defined range (undervoltage and overvoltage detection)
• Wake-up via CAN, LIN or HVIO pins with wake-up source recognition
• HVIO wake input functionality can be disabled to reduce current consumption
• Cyclic output signal for biasing various wake-up applications with selectable period and configurable on-time
• Cyclic wake-up with selectable period
• Standby mode featuring very low supply current with V1 active to maintain supply to the microcontroller
• Sleep mode featuring very low supply current with V1 off
• Sleep mode option can be disabled via non-volatile memory
• Watchdog that can operate in Window, Timeout (with optional cyclic wake-up) and Off Modes (with automatic re-enable if an interrupt is generated)
• Watchdog period selectable between 8 ms and 4 s
• 16-, 24- or 32-bit SPI for configuration, control and diagnosis
• 2 Interrupt output pins - one for high- and low-priority interrupts, one for high-priority interrupts; interrupts can be enabled individually:
  • V1 and V2/VEXT undervoltage; V2/VEXT overvoltage; battery over- and undervoltage; CAN, LIN and local wake-up (HVIO); CAN and HVIO diagnostics; overtemperature warning; cyclic wake-up; SPI failure
• V1 and V2/VEXT undervoltage; V2/VEXT overvoltage; battery over- and undervoltage; CAN, LIN and local wake-up (HVIO); CAN and HVIO diagnostics; overtemperature warning; cyclic wake-up; SPI failure
• Bidirectional reset pin with selectable reset length to support various microcontrollers; triggered, for example, by a watchdog overflow or by a V1 undervoltage event
• Limp-home output (LIMP) for activating application-specific ‘limp-home’ hardware in the event of a serious system malfunction
• Configuration information for selected functions stored in non-volatile memory
• Enable output (EN) for controlling safety-critical hardware; e.g. shut-down if the microcontroller fails
• Overtemperature warning and shut-down

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