Electronic Components Datasheet Search |
|
MAX13053ASA Datasheet(PDF) 10 Page - Maxim Integrated Products |
|
MAX13053ASA Datasheet(HTML) 10 Page - Maxim Integrated Products |
10 / 20 page MAX13050/MAX13052/MAX13053/MAX13054 Industry-Standard High-Speed CAN Transceivers with ±80V Fault Protection 10 Maxim Integrated rates of up to 500kbps. This reduces the effects of EMI, thus allowing the use of unshielded-twisted or parallel cable. The MAX13050/MAX13052 and MAX13054 stand- by mode shuts off the transmitter and switches the receiver to a low-current/low-speed state. The MAX13050/MAX13052/MAX13053/MAX13054 input common-mode range is greater than ±12V, exceeding the ISO11898 specification of -2V to +7V, and feature ±8kV Contact Discharge protection, making these devices ideal for harsh industrial environments. ±80V Fault Protected The MAX13050/MAX13052/MAX13053/MAX13054 fea- ture ±80V fault protection. This extended voltage range of CANH, CANL, and SPLIT allows use in high-voltage systems and communication with high-voltage buses. Operating Modes High-Speed Mode The MAX13050/MAX13052/MAX13053/MAX13054 can achieve transmission rates of up to 1Mbps when oper- ating in high-speed mode. Drive STBY low to operate the MAX13050 and MAX13054 in high-speed opera- tion. Connect RS to ground to operate the MAX13052 in high-speed mode. Slope-Control Mode (MAX13052) Connect a resistor from RS to ground to select slope- control mode (Table 1). In slope-control mode, CANH and CANL slew rates are controlled by the resistor (16k Ω≤ RRS ≤ 200kΩ) connected between RS and GND. Controlling the rise and fall slopes reduces high- frequency EMI and allows the use of an unshielded- twisted pair or a parallel pair of wires as bus lines. The slew rate can be approximated using the formula below: where, SR is the desired slew rate and RRS is in kΩ. Standby Mode (MAX13050/MAX13052/MAX13054) In standby mode (RS or STBY = high), the transmitter is switched off and the receiver is switched to a low-cur- rent/low-speed state. The supply current is reduced during standby mode. The bus line is monitored by a low-differential comparator to detect and recognize a wake-up event on the bus line. Once the comparator detects a dominant bus level greater than tWAKE, RXD pulls low. Drive STBY high for standby mode operation for the MAX13050 and MAX13054. Apply a logic-high to RS to enter a low-current standby mode for the MAX13052. Silent Mode S (MAX13053) Drive S high to place the MAX13053 in silent mode. When operating in silent mode, the transmitter is dis- abled regardless of the voltage level at TXD. RXD how- ever, still monitors activity on the bus line. Common-Mode Stabilization (SPLIT) SPLIT provides a DC common-mode stabilization volt- age of 0.5 x VCC when operating in normal mode. SPLIT stabilizes the recessive voltage to 0.5 x VCC for conditions when the recessive bus voltage is lowered, caused by an unsupplied transceiver in the network with a significant leakage current from the bus lines to ground. Use SPLIT to stabilize the recessive common- mode voltage by connecting SPLIT to the center tap of the split termination, see the Typical Operating Circuit. In standby mode or when VCC = 0, SPLIT becomes high impedance. Reference Output (MAX13053) MAX13053 has a reference voltage output (REF) set to 0.5 x VCC. REF can be utilized to bias the input of a CAN controller’s differential comparator, and to provide power to external circuitry. Transmitter The transmitter converts a single-ended input (TXD) from the CAN controller to differential outputs for the bus lines (CANH, CANL). The truth table for the trans- mitter and receiver is given in Table 2. TXD Dominant Timeout The CAN transceivers provide a transmitter dominant timeout function that prevents erroneous CAN controllers from clamping the bus to a dominant level by a continu- ous low TXD signal. When the TXD remains low for the 1ms maximum timeout period, the transmitter becomes disabled, thus driving the bus line to a recessive state SR V s RRS (/ ) µ= 250 CONDITION FORCED AT RS MODE RESULTING CURRENT AT RS VRS or ≤ 0.3 x VCC High-Speed |IRS| ≤ 500µA 0.4 x VCC ≤ VRS ≤ 0.6 x VCC Slope Control 10µA ≤ |IRS| ≤ 200µA VRS ≥ 0.75 x VCC Standby |IRS| ≤ 10µA Table 1. Mode Selection Truth Table MAX13052 |
Similar Part No. - MAX13053ASA |
|
Similar Description - MAX13053ASA |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |