MAX3311E General Description
The MAX3311E/MAX3313E are low-power, 5V EIA/TIA- 232-compatible transceivers. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model, making these devices ideal for applications where more robust transceivers are required.
Both devices have one transmitter and one receiver. The transmitters have a proprietary low-dropout transmitter output stage enabling RS-232-compatible operation from a +5V supply with a single inverting charge pump. These transceivers require only three 0.1F capacitors and will run at data rates up to 460kbps while maintaining RS-232-compatible output levels.
The MAX3311E features a 1A shutdown mode. In shutdown the device turns off the charge pump, pulls V- to ground, and the transmitter output is disabled. The MAX3313E features an INVALID output that asserts high when an active RS-232 cable signal is connected, signaling to the host that a peripheral is connected to the communication port.
MAX3311E Maximum Ratings
VCC to GND.........................................................-0.3V to +6V
V- to GND .......................................................... +0.3V to -7V
VCC + |V-| .....................................................................+13V
Input Voltages
TIN, SHDN to GND........................................... -0.3V to +6V
RIN to GND.................................................................±25V
Output Voltages
TOUT to GND.......................................................... ±13.2V
ROUT, INVALID to GND .................... -0.3V to (VCC + 0.3V)
Short-Circuit Duration
TOUT to GND......................................................Continuous
Continuous Power Dissipation
10-Pin MAX (derate 5.6mW/ above +70) .........444mW
Operating Temperature Ranges
MAX331_ECUB................................................. 0to +70
MAX331_EEUB .............................................-40 to +85
Junction Temperature....................................................+150
Storage Temperature Range ............................-65 to +150
Lead Temperature (soldering, 10s) ................................+300
MAX3311E Features
` ESD Protection for RS-232-Compatible I/O Pins ±15kV-Human Body Model
` 1A Low-Power Shutdown (MAX3311E)
`INVALID Output (MAX3313E)
` Receiver Active in Shutdown (MAX3311E)
` Single Transceiver (1Tx/1Rx) in 10-Pin MAX Package
MAX3311E Typical Application
·Digital Cameras
·PDAs
·GPS
·POS
·Telecommunications
·Handy Terminals
·Set-Top Boxes
MAX3311E Connection Diagram
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