TJA10手册
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[1]
Min −1 -
Typ 0 -
Max +5 15
Unit µA mA
-
-
35
mA
-
-
15
mA
−1 -
+1 -
62 42 +5 1000
mA mA µA µA
IIO
supply current on pin VIO
low power modes Normal and Receive-only mode; VTXD = VIO
VOH(dif)
differential HIGH-level output voltage on pins BP and BM; 40 Ω < Rbus < 55 Ω; VCC = VBUF = 5 V differential LOW-level output voltage on pins BP and BM; 40 Ω < Rbus < 55 Ω; VCC = VBUF = 5 V on pins BP and BM; normal power modes; −10 V < VBP < +15 V; −10 V < VBM < +15 V on pins BP and BM; normal power modes; −10 V < VBP < +15 V; −10 V < VBM < +15 V
TJA1080
FlexRay transceiver
Rev. 02 — 12 July 2007 Product data sheet
1. General description
The TJA1080 is a FlexRay transceiver, which is in line with the FlexRay electrical physical layer specification V2.1 Rev. A (see Ref. 1). It is primarily intended for communication systems from 1 Mbit/s to 10 Mbit/s, and provides an advanced interface between the protocol controller and the physical bus in a FlexRay network. The TJA1080 can be configured to be used as an active star transceiver or as a node transceiver. The TJA1080 provides differential transmit capability to the network and differential receive capability to the FlexRay controller. It offers excellent EMC performance as well as high ESD protection. The TJA1080 actively monitors the system performance using dedicated error and status information (readable by any microcontroller), as well as internal voltage and temperature monitoring. The TJA1080 supports the mode control as used in NXP Semiconductors TJA1054 (see Ref. 2) and TJA1041 (see Ref. 3) CAN transceivers.
4. Ordering information
Table 2. Ordering information Package Name TJA1080TS TJA1080TS/N SSOP20 Description plastic shrink small outline package; 20 leads; body with 5.3 mm Version SOT339-1 Type number
2.4 Protections
I Bus pins protected against 8 kV HBM ESD pulses I Bus pins protected against transients in automotive environment (ISO 7637 class C compliant) I Bus pins short-circuit proof to battery voltage (14 V and 42 V) and ground I Fail-safe mode in case of an undervoltage on pins VBAT, VCC or VIO I Passive behavior of bus lines in the event that transceiver is not powered
mV
Tvj
[1] [2]
virtual junction tem
Current flows from VCC to VBUF. This means that the maximum sum current ICC + IBUF is 35 mA. In accordance with IEC 60747-1. An alternative definition of virtual junction temperature Tvj is: Tvj = Tamb + TD x Rth(j-a), where Rth(j-a) is a fixed value to be used for the calculation of Tvj. The rating for Tvj limits the allowable combinations of power dissipation (P) and ambient temperature (Tamb).
2. Features
2.1 Optimized for time triggered communication systems
I I I I I I I I Data transfer up to 10 Mbit/s Usable for 14 V and 42 V powered systems Very low ElectroMagnetic Emission (EME) to support unshielded cable Differential receiver with high common-mode range for ElectroMagnetic Immunity (EMI) Transceiver can be used for linear passive bus topologies as well as active star topologies Auto I/O level adaptation to host controller supply voltage VIO Bus guardian interface included Automotive product qualification in accordance with AEC-Q100
[2]
600
800
1200
mV
VOL(dif)
−1200
−800
−600
mV
VIH(dif)
differential HIGH-level input voltage
150
225
300
mV
VIL(dif)
differential LOW-level input voltage
−300
−225
−150
2.3 Diagnosis (detection and signalling)
I I I I I I Overtemperature detection Short-circuit on bus lines VBAT power-on flag (first battery connection and cold start) Pin TXEN and pin BGE clamping Undervoltage detection on pins VBAT, VCC and VIO Wake source indication
Quick reference data …continued Parameter supply current Conditions low power modes Normal mode; VBGE = 0 V; VTXEN = VIO; Receive-only mode; Star-idle mode Normal mode; VBGE = VIO; VTXEN = 0 V; VBUF open Normal mode; VBGE = VIO; VTXEN = 0 V; Rbus = ∞ Ω Star-transmit mode Star-receive mode
3. Quick reference data
Table 1. Symbol VBAT VCC VBUF VIO VTRXD0 VTRXD1 VBP VBM IBAT Quick reference data Parameter supply voltage on pin VBAT supply voltage supply voltage on pin VBUF supply voltage on pin VIO voltage on pin TRXD0 voltage on pin TRXD1 voltage on pin BP voltage on pin BM supply current on pin VBAT low power modes in node configuration normal power modes Conditions no time limit operating range no time limit operating range no time limit operating range no time limit operating range Min −0.3 6.5 −0.3 4.75 −0.3 4.75 −0.3 2.2 −0.3 −0.3 −60 −60 Typ Max +60 60 +5.5 5.25 +5.5 5.25 +5.5 5.25 +5.5 +5.5 +60 +60 50 1 Unit V V V V V V V V V V V V µA mA
TJA1080_2
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 12 July 2007
2 of 48
NXP Semiconductors
TJA1080
FlexRay transceiver
Table 1. Symbol ICC
NXP Semiconductors
TJA1080
FlexRay transceiver
2.2 Low power management
I Low power management including two inhibit switches I Very low current in Sleep and Standby mode I Wake-up via wake-up symbol on the bus lines (remote), negative edge on pin WAKE (local), and a positive edge on pin STBN if VIO is present I Wake-up source recognition I Automatic power-down (in Star-sleep mode) in star configuration
Min −1 -
Typ 0 -
Max +5 15
Unit µA mA
-
-
35
mA
-
-
15
mA
−1 -
+1 -
62 42 +5 1000
mA mA µA µA
IIO
supply current on pin VIO
low power modes Normal and Receive-only mode; VTXD = VIO
VOH(dif)
differential HIGH-level output voltage on pins BP and BM; 40 Ω < Rbus < 55 Ω; VCC = VBUF = 5 V differential LOW-level output voltage on pins BP and BM; 40 Ω < Rbus < 55 Ω; VCC = VBUF = 5 V on pins BP and BM; normal power modes; −10 V < VBP < +15 V; −10 V < VBM < +15 V on pins BP and BM; normal power modes; −10 V < VBP < +15 V; −10 V < VBM < +15 V
TJA1080
FlexRay transceiver
Rev. 02 — 12 July 2007 Product data sheet
1. General description
The TJA1080 is a FlexRay transceiver, which is in line with the FlexRay electrical physical layer specification V2.1 Rev. A (see Ref. 1). It is primarily intended for communication systems from 1 Mbit/s to 10 Mbit/s, and provides an advanced interface between the protocol controller and the physical bus in a FlexRay network. The TJA1080 can be configured to be used as an active star transceiver or as a node transceiver. The TJA1080 provides differential transmit capability to the network and differential receive capability to the FlexRay controller. It offers excellent EMC performance as well as high ESD protection. The TJA1080 actively monitors the system performance using dedicated error and status information (readable by any microcontroller), as well as internal voltage and temperature monitoring. The TJA1080 supports the mode control as used in NXP Semiconductors TJA1054 (see Ref. 2) and TJA1041 (see Ref. 3) CAN transceivers.
4. Ordering information
Table 2. Ordering information Package Name TJA1080TS TJA1080TS/N SSOP20 Description plastic shrink small outline package; 20 leads; body with 5.3 mm Version SOT339-1 Type number
2.4 Protections
I Bus pins protected against 8 kV HBM ESD pulses I Bus pins protected against transients in automotive environment (ISO 7637 class C compliant) I Bus pins short-circuit proof to battery voltage (14 V and 42 V) and ground I Fail-safe mode in case of an undervoltage on pins VBAT, VCC or VIO I Passive behavior of bus lines in the event that transceiver is not powered
mV
Tvj
[1] [2]
virtual junction tem
Current flows from VCC to VBUF. This means that the maximum sum current ICC + IBUF is 35 mA. In accordance with IEC 60747-1. An alternative definition of virtual junction temperature Tvj is: Tvj = Tamb + TD x Rth(j-a), where Rth(j-a) is a fixed value to be used for the calculation of Tvj. The rating for Tvj limits the allowable combinations of power dissipation (P) and ambient temperature (Tamb).
2. Features
2.1 Optimized for time triggered communication systems
I I I I I I I I Data transfer up to 10 Mbit/s Usable for 14 V and 42 V powered systems Very low ElectroMagnetic Emission (EME) to support unshielded cable Differential receiver with high common-mode range for ElectroMagnetic Immunity (EMI) Transceiver can be used for linear passive bus topologies as well as active star topologies Auto I/O level adaptation to host controller supply voltage VIO Bus guardian interface included Automotive product qualification in accordance with AEC-Q100
[2]
600
800
1200
mV
VOL(dif)
−1200
−800
−600
mV
VIH(dif)
differential HIGH-level input voltage
150
225
300
mV
VIL(dif)
differential LOW-level input voltage
−300
−225
−150
2.3 Diagnosis (detection and signalling)
I I I I I I Overtemperature detection Short-circuit on bus lines VBAT power-on flag (first battery connection and cold start) Pin TXEN and pin BGE clamping Undervoltage detection on pins VBAT, VCC and VIO Wake source indication
Quick reference data …continued Parameter supply current Conditions low power modes Normal mode; VBGE = 0 V; VTXEN = VIO; Receive-only mode; Star-idle mode Normal mode; VBGE = VIO; VTXEN = 0 V; VBUF open Normal mode; VBGE = VIO; VTXEN = 0 V; Rbus = ∞ Ω Star-transmit mode Star-receive mode
3. Quick reference data
Table 1. Symbol VBAT VCC VBUF VIO VTRXD0 VTRXD1 VBP VBM IBAT Quick reference data Parameter supply voltage on pin VBAT supply voltage supply voltage on pin VBUF supply voltage on pin VIO voltage on pin TRXD0 voltage on pin TRXD1 voltage on pin BP voltage on pin BM supply current on pin VBAT low power modes in node configuration normal power modes Conditions no time limit operating range no time limit operating range no time limit operating range no time limit operating range Min −0.3 6.5 −0.3 4.75 −0.3 4.75 −0.3 2.2 −0.3 −0.3 −60 −60 Typ Max +60 60 +5.5 5.25 +5.5 5.25 +5.5 5.25 +5.5 +5.5 +60 +60 50 1 Unit V V V V V V V V V V V V µA mA
TJA1080_2
© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 12 July 2007
2 of 48
NXP Semiconductors
TJA1080
FlexRay transceiver
Table 1. Symbol ICC
NXP Semiconductors
TJA1080
FlexRay transceiver
2.2 Low power management
I Low power management including two inhibit switches I Very low current in Sleep and Standby mode I Wake-up via wake-up symbol on the bus lines (remote), negative edge on pin WAKE (local), and a positive edge on pin STBN if VIO is present I Wake-up source recognition I Automatic power-down (in Star-sleep mode) in star configuration