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MAX3387

3V, ±15kV ESD-Protected, AutoShutdown Plus RS-232 Transceiver for PDAs and Cell Phones

Maxim Integrated 

3V, ±15kV ESD-Protected, AutoShutdown Plus

RS-232 Transceiver for PDAs and Cell Phones

ABSOLUTE MAXIMUM RATINGS

VCC to GND ..............................................................-0.3V to +6V

VL to GND...................................................-0.3V to (VCC + 0.3V)

V+ to GND ................................................................-0.3V to +7V

V- to GND .................................................................+0.3V to -7V

V+ +⏐ V-⏐(Note 1) .............................................................. +13V

Input Voltages

T_IN, FORCEON, FORCEOFF to GND ..................-0.3V to +6V

R_IN to GND .....................................................................±25V

Output Voltages

T_OUT to GND...............................................................±13.2V

R_OUT........................................................-0.3V to (VL + 0.3V)

Short-Circuit Duration T_OUT to GND........................Continuous

Continuous Power Dissipation (TA = +70°C)

24-Pin TSSOP (derate 12.2mW/°C above +70°C) ........976mW

Operating Temperature Ranges

MAX3387ECUG ...................................................0°C to +70°C

MAX3387EEUG ................................................-40°C to +85°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

Note 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

DC ELECTRICAL CHARACTERISTICS

(VCC = VL = +3.0V to +5.5V; C1–C4 = 0.1µF, tested at +3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF, tested at +5.0V ±10%;

TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = VL = +3.3V, TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNITS

DC CHARACTERISTICS (VCC = +3.3V or +5V, TA = +25°C)

Supply Current, AutoShutdown

Plus

Supply Current

LOGIC INPUTS

All R_IN idle, FORCEON = GND,

FORCEOFF = VCC, all T_IN idle

FORCEOFF = FORCEON = VCC, no load

1.0

10

µA

0.3

1

mA

Input Logic Threshold Low

Input Logic Threshold High

Transmitter Input Hysteresis

Input Leakage Current

T_IN, FORCEON,

FORCEOFF

VL = +3.3V or +5.0V

VL = +2.5V

0.8

V

0.6

VL = +5.0V

2.4

T_IN, FORCEON,

VL = +3.3V

2.0

FORCEOFF

VL = +2.5V

1.4

V

VL = +1.8V

0.9

0.5

V

T_IN, FORCEON, FORCEOFF

±0.01 ±1

µA

RECEIVER OUTPUTS

Output Voltage Low

IOUT = 1.6mA

0.4

V

Output Voltage High

IOUT = -1mA

VL -

VL -

0.6

0.1

V

RECEIVER INPUTS

Input Voltage Range

-25

+25

V

Input Threshold Low

Input Threshold High

TA = +25°C

TA = +25°C

VL = +5.0V

VL = +3.3V

VL = +5.0V

VL = +3.3V

0.8

1.5

V

0.6

1.2

1.8

2.4

V

1.5

2.4

2 _______________________________________________________________________________________

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