MAX244EQH-D中文资料(8)

+5V-Powered, Multichannel RS-232Drivers/ReceiversMAX220–MAX249

ABSOLUTE MAXIMUM RATINGS—MAX225/MAX244–MAX249

Supply Voltage (VCC)...............................................-0.3V to +6VInput Voltages

TIN ENA, ENB, ENR, ENT, ENRA,

ENRB, ENTA, ENTB..................................-0.3V to (VCC+ 0.3V)RIN.....................................................................................±25VTOUT(Note 5).....................................................................±15VROUT........................................................-0.3V to (VCC+ 0.3V)Short Circuit (one output at a time)

TOUTto GND............................................................ContinuousROUTto GND............................................................Continuous

Continuous Power Dissipation (TA= +70°C)

28-Pin Wide SO (derate 12.50mW/°C above +70°C).............1W40-Pin Plastic DIP (derate 11.11mW/°C above +70°C)...611mW44-Pin PLCC (derate 13.33mW/°C above +70°C)...........1.07WOperating Temperature Ranges

MAX225C_ _, MAX24_C_ _ ..................................0°C to +70°CMAX225E_ _, MAX24_E_ _ ...............................-40°C to +85°CStorage Temperature Range.............................-65°C to +160°CLead Temperature (soldering,10s) (Note 6)....................+300°C

Note 5:Input voltage measured with transmitter output in a high-impedance state, shutdown, or VCC= 0V.Note 6:Maximum reflow temperature for the MAX225/MAX245/MAX246/MAX247 is +225°C.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure toabsolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS—MAX225/MAX244–MAX249

(MAX225, VCC= 5.0V ±5%; MAX244–MAX249, VCC= +5.0V ±10%, external capacitors C1–C4 = 1µF; TA= TMINto TMAX; unless oth-erwise noted.)

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