Datasheet MAX845 (Maxim) - 2

制造商Maxim
描述Isolated Transformer Driver for PCMCIA Applications
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Isolated Transformer Driver for PCMCIA Applications. ABSOLUTE MAXIMUM RATINGS. MAX845. ELECTRICAL CHARACTERISTICS. PARAMETER

Isolated Transformer Driver for PCMCIA Applications ABSOLUTE MAXIMUM RATINGS MAX845 ELECTRICAL CHARACTERISTICS PARAMETER

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Isolated Transformer Driver for PCMCIA Applications ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) ...-0.3V to +7V Operating Temperature Range ...-40°C to +85°C Control Input Voltage (SD, FS) ...-0.3V to (VCC + 0.3V) Storage Temperature Range ...-65°C to +160°C Peak Output Switch Current (D1, D2) ..1A Junction Temperature ..+150°C Output Switch Voltage (D1, D2) ...12V Lead Temperature (soldering, 10sec) ...+300°C Average Output Switch Current (D1, D2) ...200mA Continuous Power Dissipation (TA = +70°C)
MAX845
SO (derate 5.88mW/°C above +70°C) ...471mW µMAX (derate 4.10mW/°C above +70°C) ..330mW 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.
ELECTRICAL CHARACTERISTICS
(VCC = 5V ±10%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Switch On-Resistance D1, D2; 100mA 1.5 4.0 Ω FS = VCC = 4.5V 450 675 900 FS = VCC = 5.5V 550 860 1100 Switch Frequency kHz FS = 0V, VCC = 4.5V 500 FS = 0V, VCC = 5.5V 575 Operating Supply Current (Note 1) No load, SD = 0V, FS = VCC 1.1 5.0 mA Shutdown Supply Current (Note 2) SD = VCC 0.4 µA High 2.4 Shutdown Input Threshold V Low 0.8 Shutdown Input Leakage Current 10 pA High 2.4 FS Input Threshold V Low 0.8 FS = 0V 50 FS Input Current µA FS = VCC 10 Minimum Start-Up Voltage 2.5 2.2 V
Note 1:
Operating supply current is the current used by the MAX845 only. Load current is not included.
Note 2:
Shutdown supply current includes output switch leakage currents.
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