MAX13487EESA Maxim Integrated Products, MAX13487EESA Datasheet
MAX13487EESA
Available stocks
Related parts for MAX13487EESA
MAX13487EESA Summary of contents
Page 1
... Extended ESD Protection for RS-485 I/O Pins ±15kV Human Body Model ♦ 1/4-Unit Load, Allowing Up to 128 Transceivers on the Bus ♦ 8-Pin SO Package PART MAX13487EESA+ MAX13488EESA+ +Denotes a lead-free package All devices operate over the -40°C to +85°C temperature range. Applications 1 RO ...
Page 2
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) Supply Voltage V ...............................................................+6V CC SHDN, RE, DI..............................................................-0. B........................................................................... -8V to +13V Short-Circuit Duration (RO GND ..................Continuous Continuous Power Dissipation ...
Page 3
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control ELECTRICAL CHARACTERISTICS (continued +5V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL POWER SUPPLY Supply Voltage Supply Current Shutdown ...
Page 4
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control SWITCHING CHARACTERISTICS—MAX13487E (continued +5V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL Receiver Enable from Shutdown t to Output ...
Page 5
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control SWITCHING CHARACTERISTICS—MAX13488E (continued +5V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL Receiver Enable from Shutdown to Output Low ...
Page 6
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control (V = +5.0V +25°C, unless otherwise noted DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs. TEMPERATURE 3 54Ω DIFF 2.5 2.0 1.5 1.0 0.5 0 -40 - ...
Page 7
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control (V = +5.0V +25°C, unless otherwise noted RECEIVER PROPAGATION vs. TEMPERATURE (MAX13488E RPLH 20 t RPHL 10 0 -40 - TEMPERATURE (°C) RECEIVER PROPAGATION ...
Page 8
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control Figure 1. Driver DC Test Load 1 (RO PULLED LOW DIFF ...
Page 9
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control 500Ω OUTPUT UNDER TEST C L Figure 4. Driver Enable and Disable Times V ATE ID Figure 5. Receiver-Propagation-Delay Test Circuit Figure 6. Receiver Propagation Delays _______________________________________________________________________________________ ...
Page 10
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control Figure 7. Receiver Enable and Disable Times 500Ω Figure 8. Receiver Enable Time ...
Page 11
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control PIN NAME Receiver Output. When receiver is enabled and V(A) - V(B) > +200mV high. If V( < -200mV low. Receiver Output Enable. Drive RE low ...
Page 12
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control Detailed Description The MAX13487E/MAX13488E half-duplex, high-speed transceivers for RS-485/RS-422 communication contain one driver and one receiver. The MAX13487E/ MAX13488E feature a hot-swap capability allowing line insertion without erroneous data transfer (see the Hot- Swap ...
Page 13
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control on M2 and sets the SR latch, which also turns on M1. Transistors M2, a 1.5mA current source, and M1, a 500µA current source, pull through a 5kΩ resistor ...
Page 14
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control 1MΩ 1500Ω DISCHARGE CHARGE-CURRENT- RESISTANCE LIMIT RESISTOR HIGH STORAGE VOLTAGE 100pF CAPACITOR DC SOURCE Figure 10a. Human Body ESD Test Model PEAK-TO-PEAK RINGING I 100 ...
Page 15
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control SHDN MAX13487E MAX13488E Figure 11. Typical Half-Duplex RS-485 Network Typical Applications The MAX13487E/MAX13488E transceivers are designed for half-duplex, bidirectional data communi- cations on multipoint bus transmission lines. Figure ...
Page 16
Half-Duplex RS-485-/RS-422-Compatible Transceiver with AutoDirection Control V SYS RXD V SYS TXD 16 ______________________________________________________________________________________ Pin Configurations/Typical Application Circuit V ISO + ISO ISO SHDN ...
Page 17
... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 17 © 2007 Maxim Integrated Products ...