MAX650ACPD

The MAX650ACPD is designed as a low-power fixed +5V output switching DC-DC converter designed for operation from very high negative input voltages. Typical applications includes telephone (-48V) powered devices and negative input to +5V converter.

MAX650ACPD has six features. (1)+5V at 250mA from a -48V source. (2)Selectable soft-start function. (3)Shutdown pin for output on-off control. (4)Internal 20V, 250mA switching PNP transistor. (5)Low component count. (6)Low battery voltage detector. Those are all the main features.

Some absolute maximum ratings of MAX650ACPD have been concluded as several points as follow. (1)Its collector current would be -300mA. (2)Its collector voltage would be -120V. (3)Its emitter voltage would be from -1V to +0.3V. (4)Its base BD current would be -50mA. (5)Its FB voltage would be +7V. (6)ts LBI, SS and SHDN current would be +/-10mA. (7)Its LBO voltage would be from Vneg-0.3V to Vneg+15V. (8)Its voltage at OSC, BD, HYST, LBI, SS and SHDn would be from Vneg-0.3V to 0V. (9)Its NEG current would be -25mA. (10)Its OSC current would be +/-10mA. (11)Its LBO sink current would be -10mA. (12)Its HYST source current would be +/-10mA. (13)Its power dissipation would be 470mW. (14)Its operating temperature range would be from 0°C to +70°C. (15)Its storage temperature range would be from -65°C to +160°C. (16)Its lead temperature (soldering 10sec) would be +300°C. MAX650ACPD should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of MAX650ACPD are concluded as follow. (1)Its output load voltage would be min +4.75V and typ +5V and max +5.25V. (2)Its feedback input current would be typ 40uA and max 100uA. (3)Its internal zener voltage would be min -6V and typ -7V and max -8V. (4)Its internal zener current would be min -0.3mA and typ -0.5mA and max -10mA. (5)Its current sense voltage would be min -140mV and typ -175mV and max -210mV. (6)Its peak collector current would be max -250mA. (7)Its collector leakage current would be typ 0.1mA and max 10mA. And so on. If you have any question or suggestion or want to know more information about MAX650ACPD please contact us for details. Thank you!