Document
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SP385E Enhanced +3V or +5V RS-232 Line Driver/Receiver
s Operates from 3.3V or 5V Power Supply s Meets All EIA-232D and V.28 Specifications at 5V s Meets EIA-562 Specifications at 3.3V s Two Drivers and Receivers s Operates with 0.1µF to 10µF Capacitors s High Data Rate — 120kbps Under Load s Low Power Shutdown ≤1µA s 3-State TTL/CMOS Receiver Outputs s Low Power CMOS — 5mA Operation s Improved ESD Specifications: +15kV Human Body Model +15kV IEC1000-4-2 Air Discharge +8kV IEC1000-4-2 Contact Discharge DESCRIPTION… The Sipex SP385E is an enhanced version of the Sipex SP200 family of RS232 line drivers/ receivers. The SP385E offers +3.3V operation for EIA-562 and EIA-232 applications. The SP385E maintains the same performance features offered in its predecessors. The SP385E is available in plastic SOIC or SSOP packages operating over the commercial and industrial temperature ranges. The SP385E is pin compatible to the LTC1385 EIA-562 transceiver, except the drivers in the SP385E can only be disabled with the ON/OFF pin.
RS232 OUTPUTS
RS232 INPUTS
CHARGE PUMP
T1
T2
R 1 R 2
TTL/CMOS INPUTS TTL/CMOS OUTPUTS
Rev. 10/22/01
SP385E Enhanced +3V to +5V RS-232 Line Driver/Receiver
© Copyright 2001 Sipex Corporation
1
ABSOLUTE MAXIMUM RATINGS
This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. Vcc ................................................................................................................................................................. +6V V+ .................................................................................................................... (Vcc-0.3V) to +13.2V V- .............................................................................................................................................................. 13.2V Input Voltages TIN ......................................................................................................................... -0.3 to (Vcc +0.3V) RIN ............................................................................................................................................................ ±15V
Output Voltages TOUT .................................................................................................... (V+, +0.3V) to (V-, -0.3V) ROUT ................................................................................................................ -0.3V to (Vcc +0.3V) Short Circuit Duration TOUT ......................................................................................................................................... Continuous Power Dissipation CERDIP .............................................................................. 675mW (derate 9.5mW/°C above +70°C) Plastic DIP .......................................................................... 375mW (derate 7mW/°C above +70°C) Small Outline ...................................................................... 375mW (derate 7mW/°C above +70°C)
SPECIFICATIONS
VCC = +3.3V ± 10%; cap on (V+) and (V-) = 1.0µF, C1 = C2 = 0.1µF; TMIN to TMAX unless otherwise noted.
PARAMETERS TTL INPUT Logic Threshold Low High Logic Pullup Current Maximum Data Rate TTL OUTPUT TTL/CMOS Output Voltage, Low Voltage, High Leakage Current; TA = +25°C VCC EIA-562 OUTPUT Output Voltage Swing
MIN.
TYP.
MAX.
UNITS
CONDITIONS
0.8 2.0 15 120 200
Volts Volts µA kbps
TIN ; ON/OFF Vcc = 3.3V TIN ; ON/OFF Vcc = 3.3V TIN = 0V CL = 2500pF, RL= 3kΩ
0.5 2.4 0.05 ±10
Volts Volts µA
IOUT = 3.2mA; Vcc = 3.3V IOUT = -1.0mA ON/OFF=0V, 0V ≤ VOUT ≤
±3.7
±4.2 ±10 +15 1.2 1.7 0.5 5 4.0 1.5 30 10 300 1000 3 6 8 5 2.4 1.0 7
Volts Ω mA Volts Volts Volts Volts kΩ µs µs V/µs V/µs ns ns mA
Power-Off Output Resistance 300 Output Short Circuit Current EIA-562 INPUT Voltage Range -15 Voltage Threshold Low 0.8 High Hysteresis 0.2 Resistance 3 DYNAMIC CHARACTERISTICS Driver Propagation Delay Receiver Propagation Delay Instantaneous Slew Rate Transition Region Slew Rate Output Enable Time Output Disable Time POWER REQUIREMENTS VCC Power Supply Current 3.3V 3kΩ Shutdown Supply Current
All transmitter outputs loaded with 3kΩ to ground VCC = 0V; VOUT = ±2V Infinite duration
VCC = 3.3V, TA = +25°C VCC = 3.3V, TA = +25°C VCC = 3.3V, TA = +25°C VIN = 15V to –15V TTL to RS-562 RS-562 to TTL CL = 10pF, RL= 3kΩ - 7kΩ; TA = +25°C CL = 2500pF, RL= 3kΩ; measured from +2V to -2V or -2V to +2V
No load, TA= +25°C; VCC = mA All transmitters RL = TA = +25°C VCC = 3.3V, TA = +25°C
0.010
µA
Rev. 10/22/01
SP385E Enhanced +3V to +5V RS-232 Line Driver/Receiver
© Copyright 2001 Sipex Corporation
2
SPECIFICATIONS
VCC = +3.3V ± 10%; cap on (V+) and (V-) = 1.0µF, C1 = C2 = 0.1µF; TMIN to TMAX unless otherwise noted.
PARAMETERS TTL INPUT Logic Threshold Low High Log.