QBD1044 datasheet 国产TJA1044 VP230 SN65HVD230 CAN收发器芯片
QBD1044(CAN2.0B CANFD)
3.3V & 5V High-speed CAN transceiver with Standby mode
Rev. 5 — 24 August 2019Product data sheet
1 General description
The QBD1044 is high-speed CAN transceivers It provides an interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. The transceiver is designed for high-speed CAN applications in the automotive industry, providing the differential transmit and receive capability to (a microcontroller with) a CAN protocol controller.
The QBD1044 offers a feature set optimized for 12V and 24V automotive applications, with significant improvements over Chipsmi's first- and second-generation CAN transceivers, suchas the QBD1040, and excellent ElectroMagnetic Compatibility (EMC) performance. Additionally, the QBD1044 features:
?Ideal passive behavior to the CAN bus when the supply voltage is off
?A very low-current Standby mode with bus wake-up capability
?Excellent EMC performance at speeds up to 5Mbps even without a common mode choke
?QBD1044 can be interfaced directly to MCU with supply voltages from 3V to 5 V
?QBD1044 Can work with Power supply from 3V to 5 V
These features make the QBD1044 an excellent choice for all types of HS-CAN networks, in nodes that require a low-power mode with wake-up capability via the CAN bus.
The QBD1044 implements the CAN physical layer as defined in ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5. The QBD1044 is specified for data rates up to 5 Mbit/s. Additional timing parameters defining loop delay symmetry are specified for the other variants. This implementation enables reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s.
2 Features and benefits
2.4General
?Fully functional compatible with the TJA1044 device and TI SN65HVD230.
?Vdd power supply compatible with 3.3 V and 5 V devices.
?Input levels compatible with 3.3 V and 5 V devices.
?Fully ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant
?Very low-current Standby mode with host and bus wake-up capability
?Optimized for use in 12 V and 24V automotive systems
?Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant)
High-speed CAN transceiver with Standby mode
?Differential receiver with wide common-mode range for high ElectroMagnetic Immunity (EMI).
?An unpowered node does not disturb the bus lines.
?Transmit Data (TXD) dominant time-out function.
?Silent mode in which the transmitter is disabled.
?Bus pins protected against transients in an automotive environment.
2.5Predictable and fail-safe behavior
?Functional behavior predictable under all supply conditions
?Transceiver disengages from bus when not powered (zero load)
?Transmit Data (TXD) and bus dominant time-out functions
?Internal biasing of TXD and STB input pins
2.6Protection
?High ESD handling capability on the bus pins (8 kV IEC and HBM)
?Bus pins protected against transients in automotive environments
?Thermally protected
2.7QBD1044 CAN FD (applicable to all product variants)
?Timing guaranteed for CAN FD data rates up to 5 Mbit/s
?Improved TXD to RXD propagation delay of 210 ns
High-speed CAN transceiver with Standby mode
3 Quick reference data
Table 1.Quick reference data
SymbolParameterConditionsMinTypMaxUnit
VCCsupply voltage3.0-5.5V
ICCsupply currentStandby mode; variants without a VIO pin-1015?A
Standby mode; variants with a VIO pin--5?A
Normal mode; bus recessive-410mA
Normal mode; bus dominant-6380mA
VESDelectrostatic discharge voltageIEC 61000-4-2 at pins CANH and CANL?-8-+8kV
TOPOperation temperature?-40-+125?C
4 Block diagram
High-speed CAN transceiver with Standby mode
5 Pinning information
Pinning (SOP8 & DFN3X3)
Fig 2.Pin configuration diagrams
Pin description
Table 3.Pin description
SymbolPinDescription
TXD1transmit data input
GND2ground supply
VCC3supply voltage
RXD4receive data output; reads out data from the bus lines
n.c.5reserved
CANL6LOW-level CAN bus line
CANH7HIGH-level CAN bus line
SEL8Standby mode control input Selection
High-speed CAN transceiver with Standby mode
6 Functional description
–Operating modes
The QBD1044 supports two operating modes, Normal and Standby. The operating mode is selected via pin STB. See Ta ble 4 for a description of the operating modes under normal supply conditions.
Table 4.Operating modes
ModeInputsOutputs
Pin STBPin TXDCAN driverPin RXD
NormalLOWLOWdominantLOW
HIGHrecessiveLOW when bus dominant
HIGH when bus recessive
StandbyHIGHx[1]biased to groundfollows BUS when wake-up detected
HIGH when no wake-up detected
[1] ‘x’ = don’t care.
?Normal mode
A LOW level on pin STB selects Normal mode. In this mode, the transceiver can transmit and receive data via the bus lines CANH and CANL (see Figure 1 for the
3.3V & 5V High-speed CAN transceiver with Standby mode
Rev. 5 — 24 August 2019Product data sheet
1 General description
The QBD1044 is high-speed CAN transceivers It provides an interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. The transceiver is designed for high-speed CAN applications in the automotive industry, providing the differential transmit and receive capability to (a microcontroller with) a CAN protocol controller.
The QBD1044 offers a feature set optimized for 12V and 24V automotive applications, with significant improvements over Chipsmi's first- and second-generation CAN transceivers, suchas the QBD1040, and excellent ElectroMagnetic Compatibility (EMC) performance. Additionally, the QBD1044 features:
?Ideal passive behavior to the CAN bus when the supply voltage is off
?A very low-current Standby mode with bus wake-up capability
?Excellent EMC performance at speeds up to 5Mbps even without a common mode choke
?QBD1044 can be interfaced directly to MCU with supply voltages from 3V to 5 V
?QBD1044 Can work with Power supply from 3V to 5 V
These features make the QBD1044 an excellent choice for all types of HS-CAN networks, in nodes that require a low-power mode with wake-up capability via the CAN bus.
The QBD1044 implements the CAN physical layer as defined in ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5. The QBD1044 is specified for data rates up to 5 Mbit/s. Additional timing parameters defining loop delay symmetry are specified for the other variants. This implementation enables reliable communication in the CAN FD fast phase at data rates up to 5 Mbit/s.
2 Features and benefits
2.4General
?Fully functional compatible with the TJA1044 device and TI SN65HVD230.
?Vdd power supply compatible with 3.3 V and 5 V devices.
?Input levels compatible with 3.3 V and 5 V devices.
?Fully ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 compliant
?Very low-current Standby mode with host and bus wake-up capability
?Optimized for use in 12 V and 24V automotive systems
?Dark green product (halogen free and Restriction of Hazardous Substances (RoHS) compliant)
High-speed CAN transceiver with Standby mode
?Differential receiver with wide common-mode range for high ElectroMagnetic Immunity (EMI).
?An unpowered node does not disturb the bus lines.
?Transmit Data (TXD) dominant time-out function.
?Silent mode in which the transmitter is disabled.
?Bus pins protected against transients in an automotive environment.
2.5Predictable and fail-safe behavior
?Functional behavior predictable under all supply conditions
?Transceiver disengages from bus when not powered (zero load)
?Transmit Data (TXD) and bus dominant time-out functions
?Internal biasing of TXD and STB input pins
2.6Protection
?High ESD handling capability on the bus pins (8 kV IEC and HBM)
?Bus pins protected against transients in automotive environments
?Thermally protected
2.7QBD1044 CAN FD (applicable to all product variants)
?Timing guaranteed for CAN FD data rates up to 5 Mbit/s
?Improved TXD to RXD propagation delay of 210 ns
High-speed CAN transceiver with Standby mode
3 Quick reference data
Table 1.Quick reference data
SymbolParameterConditionsMinTypMaxUnit
VCCsupply voltage3.0-5.5V
ICCsupply currentStandby mode; variants without a VIO pin-1015?A
Standby mode; variants with a VIO pin--5?A
Normal mode; bus recessive-410mA
Normal mode; bus dominant-6380mA
VESDelectrostatic discharge voltageIEC 61000-4-2 at pins CANH and CANL?-8-+8kV
TOPOperation temperature?-40-+125?C
4 Block diagram
High-speed CAN transceiver with Standby mode
5 Pinning information
Pinning (SOP8 & DFN3X3)
Fig 2.Pin configuration diagrams
Pin description
Table 3.Pin description
SymbolPinDescription
TXD1transmit data input
GND2ground supply
VCC3supply voltage
RXD4receive data output; reads out data from the bus lines
n.c.5reserved
CANL6LOW-level CAN bus line
CANH7HIGH-level CAN bus line
SEL8Standby mode control input Selection
High-speed CAN transceiver with Standby mode
6 Functional description
–Operating modes
The QBD1044 supports two operating modes, Normal and Standby. The operating mode is selected via pin STB. See Ta ble 4 for a description of the operating modes under normal supply conditions.
Table 4.Operating modes
ModeInputsOutputs
Pin STBPin TXDCAN driverPin RXD
NormalLOWLOWdominantLOW
HIGHrecessiveLOW when bus dominant
HIGH when bus recessive
StandbyHIGHx[1]biased to groundfollows BUS when wake-up detected
HIGH when no wake-up detected
[1] ‘x’ = don’t care.
?Normal mode
A LOW level on pin STB selects Normal mode. In this mode, the transceiver can transmit and receive data via the bus lines CANH and CANL (see Figure 1 for the
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