MAX5943DEEE+T Maxim Integrated Products, MAX5943DEEE+T Datasheet
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MAX5943DEEE+T
Specifications of MAX5943DEEE+T
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MAX5943DEEE+T Summary of contents
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... FireWire is a registered trademark of Apple Computers, Inc. IEEE 1394 is a trademark of the Institute of Electrical and Electronics Engineers trademark registered trademark of Underwriters Laboratories, Inc. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ORing Switch Controller o Provides Safe Hot Swap for 7 ...
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FireWire Current Limiter and Low-Drop ORing Switch Controller ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND, unless otherwise noted.) IN ............................................................................-0.3V to +80V OUT ........................................................................-0.3V to +80V SENSE to IN..............................................................-1V to +0.3V GATE1 to SENSE......................................................-0.3V to +8V GATE2 to OUT (internally ...
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FireWire Current Limiter and Low-Drop ELECTRICAL CHARACTERISTICS (continued 7.5V to 37V, GND = 0V, and (Note 1) PARAMETER SYMBOL GATE2 Pulldown Current During I G2OFF Any GATE2 Turn-Off Condition GATE1 (ORing control) ORing Switch Turn-On ...
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FireWire Current Limiter and Low-Drop ORing Switch Controller ELECTRICAL CHARACTERISTICS (continued 7.5V to 37V, GND = 0V, and (Note 1) PARAMETER SYMBOL Circuit-Breaker Timeout (MAX5943B–MAX5943E) (Note 7) Automatic Restart Delay After Current-Limit/Circuit-Breaker Timeout GATE1 Turn-Off ...
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FireWire Current Limiter and Low-Drop (V = +12V +25°C, unless otherwise noted SUPPLY CURRENT vs. SUPPLY VOLTAGE 2.0 1.9 1.8 1.7 1 +85° +25°C A 1.4 1.3 1.2 1.1 T ...
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FireWire Current Limiter and Low-Drop ORing Switch Controller (V = +12V +25°C, unless otherwise noted GATE2 DRIVE VOLTAGE vs. TEMPERATURE 5.230 5.227 5.224 5.221 5.218 5.215 5.212 5.209 5.206 5.203 5.200 -40 - ...
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FireWire Current Limiter and Low-Drop (V = +12V +25°C, unless otherwise noted MAX5943A SHORT-CIRCUIT EVENT (V = 37V) IN ILIM = GND 100ns/div MAX5943A SHORT-CIRCUIT RESPONSE (V IN 100ns/div MAX5943E SHORT-CIRCUIT RESPONSE (V IN 100μs/div _______________________________________________________________________________________ ...
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FireWire Current Limiter and Low-Drop ORing Switch Controller (V = +12V +25°C, unless otherwise noted ORing SWITCHOVER WAVEFORM (V RISING ABOVE V IN2 10μs/div V = 12V IN1 V = 13V IN2 MAX5943A HOT PLUG-IN LOAD ...
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FireWire Current Limiter and Low-Drop PIN NAME On/Off-Control Input. ON sets the undervoltage lockout threshold and resets the part after a fault latch. Drive ON high to enable the device. Drive ON low to disable the device. Connect ON to ...
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FireWire Current Limiter and Low-Drop ORing Switch Controller POWER R SENSE SOURCE ONQ1 OR OR_ADJ COMPARATOR THRESHOLD CIRCUIT-BREAKER ILIM (CURRENT-LIMIT) THRESHOLD (FAST CURRENT- LIMIT THRESHOLD) UVLO COMPARATOR + - 6. 1.24V ON COMPARATOR + - 0.4V MAX5943A–MAX5943E ...
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FireWire Current Limiter and Low-Drop The MAX5943 current-limit/circuit-breaker timeout is programmable by connecting an external resistor from TIM to GND. The MAX5943A has a default 2ms current- limit timeout. The MAX5943B, MAX5943C, MAX5943D, and MAX5943E have 0.5ms, 1ms, 2ms, and ...
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FireWire Current Limiter and Low-Drop ORing Switch Controller MAX5943B–MAX5943E Circuit Breaker The MAX5943B–MAX5943E provide a circuit-breaker function that protects against excessive load currents and short-circuit conditions. The load current is monitored by sensing the voltage across an external sense resistor ...
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FireWire Current Limiter and Low-Drop Timing accuracy is guaranteed for R 4kΩ to 50kΩ. Large R values can be used, which TIM reduces timing accuracy. A maximum timeout period is enforced to prevent arbitrarily long operation in current- limit/circuit-breaker conditions. ...
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FireWire Current Limiter and Low-Drop ORing Switch Controller Reverse Current Override (ONQ1 = High) Drive ONQ1 high to disable the power-supply ORing function. Disabling the MAX5943 ORing function allows reverse current flow through the power-supply system. When ONQ1 is high, ...
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FireWire Current Limiter and Low-Drop Fault Management The MAX5943 offers either latch or autoretry fault man- agement configurable by the LATCH input. Connect LATCH to IN for latch fault management or connect LATCH to GND for autoretry fault management. In ...
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FireWire Current Limiter and Low-Drop ORing Switch Controller Select external MOSFETs according to the application current level. The MOSFETs’ on-resistance (R should be chosen low enough to have minimum voltage drop at full load to limit the MOSFET power dissipation. ...
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FireWire Current Limiter and Low-Drop The programmable timeout of the MAX5943 allows the use of MOSFETs with low power ratings. A MOSFET typically withstands single-shot pulses with higher dis- sipation than the specified package rating. A single-port FireWire protective circuit ...
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FireWire Current Limiter and Low-Drop ORing Switch Controller FireWire Power Management The MAX5943 serves to regulate and protect FireWire power over a system interface. The MAX5943 program- mable features make it suitable for both power provider and power receiver applications. ...
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FireWire Current Limiter and Low-Drop (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ ORing Switch Controller Package Information 19 ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc ...