SP3238EEY-L/TR MaxLinear

SP3238E Intelligent +3.0V to +5.5V RS-232 Transceiver FEATURES C2+ 1 28 C1+ Meets true EIA/TIA-232-F Standards GND 2 27 V+ from a +3.0V to +5.5V power supply C2- 3 VCC Interoperable with EIA/TIA-232 and 26 adheres to EIA/TIA-562 down to a +2.7V V- 4 25 C1- power source T OUT 5 24 T IN 1 1 SP3238E AUTO ON-LINE circuitry automatically 23 T IN T OUT 6 2 2 wakes up from a 1A shutdown T OUT 7 22 T IN 3 3 Minimum 250Kbps data rate under load R IN 8 21 R OUT 1 1 Regulated Charge Pump Yields Stable R IN 9 20 R OUT 2 2 RS-232 Outputs Regardless of V CC T OUT 10 19 T IN 4 4 Variations R IN 11 18 R OUT 3 3 Enhanced ESD Specifications: T OUT 12 17 T IN 5 5 +15kV Human Body Model ONLINE 13 16 R OUT 1 +15kV IEC61000-4-2 Air Discharge SHUTDOWN 14 15 STATUS +8kV IEC61000-4-2 Contact Discharge Now Available in Lead Free Packaging DESCRIPTION The SP3238E device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop computers. The SP3238E uses an internal high-efficiency, charge-pump power supply that requires only 0.1F capacitors in 3.3V operation. This charge pump and Exar s driver architecture allow the SP3238E device to deliver compliant RS-232 performance from a single power supply ranging from +3.0V to +5.5V. The SP3238E is a 5-driver / 3-receiver device that is ideal for laptop / notebook computer and PDA applications. The SP3238E includes one complementary receiver that remains alert to monitor an external device s Ring Indicate signal while the device is shutdown. The AUTO ON-LINE feature allows the device to automaticallywake-u during a shutdown state when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise, the device automatically shuts itself down drawing less than 1A. SELECTION TABLE Device Power RS-232 RS-232 External Auto TTL 3-State of Supplies Drivers Receivers Components On-Line Pins Circuitry SP3220E +3.0V to +5.5V 1 1 4 Capacitors No Yes 16 SP3223E +3.0V to +5.5V 2 2 4 Capacitors Yes Yes 20 SP3243E +3.0V to +5.5V 3 5 4 Capacitors Yes Yes 28 SP3238E +3.0V to +5.5V 5 3 4 Capacitors Yes Yes 28 SP3238E 101 012920 1ABSOLUTE MAXIMUM RATINGS Power Dissipation per package These are stress ratings only and functional operation o o 28-pin SSOP (derate 11.2mW/ C above +70 C)..........900mW of the device at these ratings or any other above those o o 28-pin TSSOP (derate 13.2mW/ C above +70 C)......1100mW indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability and cause permanent damage to the device. V .......................................................-0.3V to +6.0V CC V+ (NOTE 1).......................................-0.3V to +7.0V V- (NOTE 1)........................................+0.3V to -7.0V V+ + V- (NOTE 1)...........................................+13V I (DC V or GND current).........................+100mA CC CC Input Voltages TxIN, ONLINE, SHUTDOWN, ....-0.3V to Vcc + 0.3V RxIN...................................................................+25V Output Voltages TxOUT.............................................................+13.2V RxOUT, STATUS.......................-0.3V to (V +0.3V) CC Short-Circuit Duration TxOUT....................................................Continuous Storage Temperature......................-65C to +150C NOTE 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V. ELECTRICAL CHARACTERISTICS V = +3.0V to +5.5V, C1 - C4 = 0.1F (tested at 3.3V +/-5%), C1 - C4 = 0.22F (tested at 3.3V +/-10%), CC C1 = 0.047F and C2 - C4 = 0.33F (tested at 5.0V +/-10%), T = T to T , unless otherwise noted. Typical AMB MIN MAX o values are at T = 25 C A PARAMETER MIN. TYP. MAX. UNITS CONDITIONS DC CHARACTERISTICS Supply Current, AUTO ON- 1.0 10 A All RxIN open, ONLINE = GND, LINE SHUTDOWN = V , TxIN = GND or CC V CC Supply Current, Shutdown 1.0 10 A SHUTDOWN = GND, TxIN = Vcc or GND Supply Current 0.3 1.0 mA ONLINE = SHUTDOWN = Vcc, AUTO ON-LINE Disabled no load, TxIN = GND or V CC LOGIC INPUTS AND RECEIVER OUTPUTS Input Logic Threshold V = +3.3V or +5.0V, TxIN CC LOW 0.8 V ONLINE, SHUTDOWN HIGH 2.4 V Input Leakage Current +0.01 +1.0 A TxIN, ONLINE, SHUTDOWN, o T = +25 C AMB Output Leakage Current +0.05 +10 A Receivers disabled Output Voltage LOW 0.4 V I = 1.6mA OUT Output Voltage HIGH V -0.6 V -0.1 V I = -1.0mA CC CC OUT DRIVER OUTPUTS Output Voltage Swing +5.0 +5.4 V All driver outputs loaded with 3K to GND SP3238E 101 012920 2