B10011S ATMEL | Alldatasheet
Document overview
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Technical content
Features
Capability of Single-wire Operation Hardware Fault Recognition Inputs with High Common-mode and Differential-mode Interference Rejection Above
100 VPP due to External Filters at the Receiver Input
Immunity Against Electromagnetic Interference Immunity Against Ground-voltage Offsets < 6 V Ruggedized Against ESD by MIL-STD-883C, Method 3015 Benefits Systems which employ this device have the following benefits compared to solutions using discrete components: High Reliability
Applications
Especially Suited for Truck and Van Applications Interface Between Truck and Trailer Interface Between Dashboard and Engine
Description
The CAN driver IC B10011S is a low-speed, high-level interface for 24 V (27 V) opera- tion with transmission levels according to ISO WD 11992-1 (point-to-point interface between trucks and trailers). It is developed for signal levels of 8/16 V and a speed of up to 250 kbits/s. This device allows transmission, that is insensitive to electromagnetic interference. Such interferences may especially occur in truck applications where (due to the length of the wires) high common-mode voltages (e.g., 50 ) can be coupled into the lines. This device contains a fault recognition circuit that detects faults on one of the two wires, which are normally used for transmission. If a fault occurs the operation can be switched from double-wire to single-wire mode thus, allowing proper operation even if one wire is broken, has a short-cut or a high series resistance. Figure 1. Block Diagram
2 B10011S
Figure 2. Pinning SO16
1 ASEL Select control input
2 BSEL Select control input
3 ER Error signal output
5 RX0 Receiver output
6 TX0 Transmitter input
7 VDD Controller supply voltage 5 V
8 VSS Controller supply voltage 0 V
9 S- Collector of internal NPN switch
10 GND Vehicle ground 0 V
11 L ’ Data out driver
12 H’ Data out driver
13 VCC Vehicle power supply 24 V
14 S+ Control output for external PNP
15 F0 Receiver input
16 F1 Receiver input
4749B–AUTO–09/04 ER (error signal) is low when normal operation is disturbed by line faults (interruption, short to ground or to V CC, H to L short disturbance by high voltage transients). After a waiting period due to transient delays, the controller is asked to test if single-wire opera- tion is possible by changing the A sel and Bsel state. Asel and Bsel have an internal pull-up resistor. Therefore, the no-connect state is 1, but connection to VDD is recommended when not in use. Absolute Maximum Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Parameters Symbol Value Unit Supply voltage V CC -0.5 to +36 V Controller supply voltage V DD -0.5 to +5.5 V Input voltage at any input V in -0.5 to VDD V Junction temperature T j 150 °C Storage temperature range T stg -55 to +150 °C Soldering temperature (for 10 s maximum) T sld 260 °C Operating Conditions Parameters Symbol Value Unit Supply voltage car battery V CC 7 to 32 V Controller supply voltage V DD 4.75 to 5.25 V Control input voltage A sel, Bsel 0 to VDD V Input voltage T x0 0 to VDD V Operating temperature T amb -40 to +105 °C Operating Modes 0 = 0 V, 1 = 5 V Asel Bsel Rx0 Mode 00 3 . 8 V H, L drivers disabled, L load disabled, S-, S+ disabled station not in operation, but consuming current 1 0 From H Single-wire H, L driver, L load, S-, S+ disabled 0 1 From L Single-wire L, H driver disabled 1 1 From L-H Two-wire operation, normal mode
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levels have to be kept constant when additional stations are connected. Figure 3. Pulse Diagram
4749B–AUTO–09/04
Electrical Characteristics
Test condition: Test circuit (see Figure 4 on page 6), 0 = 0 V , 1 = 5 V VCC = 27 V, VDD = 5 V, VSS = 0 V, Tamb = -40°C to +105°C, unless otherwise specified. Parameters Test Conditions Symbol Min. Typ. Max. Unit Supply current Tx0 = 0, Asel = 1, Bsel = 1 I CC 15 mA Tx0 = 0, Asel = 0, Bsel = 0 I DD 22 mA Tx0 = 1, Asel = 1, Bsel = 1 I CC 26 mA Tx0 = 1, Asel = 1, Bsel = 1 I DD 16 mA Input current Tx0 = 1, Asel = 1, Bsel = 1 I(T x0) 650 µA Tx0 = 1, Asel = 1, Bsel = 1 I(A sel, Bsel) 150 µA Output voltage Tx0 = 0, Asel = 1, Bsel = 0 VIL(F0) = 1.9 V , VIH(F1) = 2.7 V Rx0 1.0 V Tx0 = 1, Asel = 1, Bsel = 1 VIL(F1) = 1.9 V , VIH(F0) = 2.7 V Rx0 3.8 V Tx0 = 0, Asel = 1, Bsel = 1 U(H’) 24.5 V Tx0 = 1, Asel = 1, Bsel = 1 U(H’) 1.0 V Tx0 = 1, Asel = 1, Bsel = 1 U(L ’) 26 V Tx0 = 0, Asel = 1, Bsel = 1 U(L ’) 1.0 V No fault ER 4.7 V Fault on line ER 100 mV V CC = 7 V, VDD = 4.75 V, VSS = 0 V, Tamb = 25°C, unless otherwise specified. Parameters Test Conditions Symbol Min. Typ. Max. Unit Output voltage Tx0 = 0, Asel = 1, Bsel = 1 U(H’) 4.5 V Tx0 = 1, Asel = 1, Bsel = 1 U(H’) 100 mV Tx0 = 1, Asel = 1, Bsel = 0 U(L ’) 6.5 V Tx0 = 0, Asel = 1, Bsel = 1 U(L ’) 1.0 V Tx0 = 1, Asel = 1, Bsel = 0 VIL(F1) = 1.0 V , VIH(F0) = 1.15 V Rx0 3.3 V Tx0 = 0, Asel = 1, Bsel = 0 VIL(F0) = 1.0 V , VIH(F1) = 1.15 V Rx0 1.0 V VCC = 32 V, VDD = 5.25 V , VSS = 0 V, Tamb = 25°C, unless otherwise specified. Parameters Test Conditions Symbol Min. Typ. Max. Unit Output voltage Tx0 = 0, Asel = 1, Bsel = 1 U(H’) 29 V Tx0 = 1, Asel = 1, Bsel = 1 U(H’) 500 mV Tx0 = 1, Asel = 1, Bsel = 0 U(L ’) 31.5 V Tx0 = 0, Asel = 1, Bsel = 1 U(L ’) 1.0 V Tx0 = 1, Asel = 1, Bsel = 0 VIL(F1) = 1.6 V , VIH(F0) = 2.7 V Rx0 4.0 V Tx0 = 0, Asel = 1, Bsel = 0 VIL(F0) = 1.6 V , VIH(F1) = 2.7 V Rx0 1.0 V
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Figure 4. Test Circuit Figure 5. Application Circuit
Figure 6. Implementation of a Power Filter and Over Clamps for approximately 1 to 2 µs. choke coil, and capacitor between pins 13 and 10. sion errors due to spikes on the 24-V battery voltage. not be weakened by omitting one of the capacitors.
8 B10011S
line, one of them always in the recessive state (see Figure 8 on page 9). The dynamic behavior of the circuit depends on the line capacitances to ground. blocked by low-inductance capacitors. ble, perhaps to the metal housing. and might reduce its life expectancy. Figure 7. Comparator Thresholds
Figure 8. Test Circuit Equivalents
10 B10011S
4749B–AUTO–09/04
Package Information
Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Changes from Rev. 4749A - 10/03 to Rev. 4749B - 09/04 1. Figure 2 “Pinning SO16” on page 2 changed.
Ordering Information
B10011S-MFPG1 SO16, tape and reel, 1000 units/reel 3.80 0.25 6.0 0.3 9.9 0.3 1.27 0.42 0.07 1.55 0.2 0.18 0.08 Pin 1 0.22 0.03 0.7 0.1
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